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Document and Entity Information (USD $)
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12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2012
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Feb. 26, 2013
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Jun. 29, 2012
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| Entity Information [Line Items] | |||
| Document Type | 10-K | ||
| Amendment Flag | false | ||
| Document Period End Date | Dec. 31, 2012 | ||
| Document Fiscal Year Focus | 2012 | ||
| Document Fiscal Period Focus | FY | ||
| Entity Registrant Name | U.S. Silica Holdings, Inc. | ||
| Entity Central Index Key | 0001524741 | ||
| Current Fiscal Year End Date | --12-31 | ||
| Entity Well-known Seasoned Issuer | No | ||
| Entity Current Reporting Status | Yes | ||
| Entity Voluntary Filers | No | ||
| Entity Filer Category | Non-accelerated Filer | ||
| Entity Common Stock, Shares Outstanding | 52,936,821 | ||
| Entity Public Float | $ 132,166,558 |
| X | ||||||||||
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- Definition
If the value is true, then the document is an amendment to previously-filed/accepted document. No definition available.
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| X | ||||||||||
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- Definition
End date of current fiscal year in the format --MM-DD. No definition available.
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- Definition
This is focus fiscal period of the document report. For a first quarter 2006 quarterly report, which may also provide financial information from prior periods, the first fiscal quarter should be given as the fiscal period focus. Values: FY, Q1, Q2, Q3, Q4, H1, H2, M9, T1, T2, T3, M8, CY. No definition available.
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- Definition
This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. No definition available.
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| X | ||||||||||
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- Definition
The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. No definition available.
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- Definition
The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word "Other". No definition available.
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| X | ||||||||||
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- Definition
A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. No definition available.
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- Definition
Indicate "Yes" or "No" whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Definition
Indicate whether the registrant is one of the following: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, (4) Smaller Reporting Company (Non-accelerated) or (5) Smaller Reporting Accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Details
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| X | ||||||||||
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- Definition
State aggregate market value of voting and non-voting common equity held by non-affiliates computed by reference to price at which the common equity was last sold, or average bid and asked price of such common equity, as of the last business day of registrant's most recently completed second fiscal quarter. The public float should be reported on the cover page of the registrants form 10K. No definition available.
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| X | ||||||||||
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- Definition
The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Indicate "Yes" or "No" if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. No definition available.
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| X | ||||||||||
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- Definition
Indicate "Yes" or "No" if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A. No definition available.
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| X | ||||||||||
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- Definition
Carrying amount (cumulative fair value assigned at the date of acquisition, adjusted for amortization or impairment) as of the balance sheet date, for identifiable contractual rights, acquired through a business combination, with certain customers for a defined period of time. No definition available.
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| X | ||||||||||
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- Definition
The carrying amount as of the balance sheet date of all long-term debt outstanding and payable to a Parent entity (related party), which is debt initially having contractual maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. No definition available.
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Carrying value as of the balance sheet date of payments made in excess of existing cash balances, which will be honored by the bank but reflected as a loan to the entity. Overdrafts generally have a very short time frame for correction or repayment and are therefore more similar to short-term bank financing than trade financing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The noncurrent portion of deferred revenue amount as of balance sheet date. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized, and is not expected to be recognized in the next twelve months. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences, net of deferred tax asset attributable to deductible temporary differences and carryforwards net of valuation allowances expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trade name to gain or protect exclusive use thereof for a projected indefinite period of benefit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount (lower of cost or market) as of the balance sheet date of inventories less all valuation and other allowances. Excludes noncurrent inventory balances (expected to remain on hand past one year or one operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total of all Liabilities and Stockholders' Equity items (or Partners' Capital, as applicable), including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent assets not separately disclosed in the balance sheet. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
This represents the noncurrent liability for underfunded plans recognized in the balance sheet that is associated with the defined benefit pension plans and other postretirement defined benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Value of all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by shareholders, which is net of related treasury stock. May be all or a portion of the number of preferred shares authorized. These shares represent the ownership interest of the preferred shareholders. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The total of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer, and the aggregate carrying amount of current assets, as of the balance sheet date, not separately presented elsewhere in the balance sheet. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Cost basis for treasury stock acquired for purposes other than retirement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2012
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Mar. 31, 2012
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Dec. 31, 2011
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Sep. 30, 2011
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Jun. 30, 2011
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Mar. 31, 2011
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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| Sales | $ 118,846 | $ 115,885 | $ 104,599 | $ 102,591 | $ 83,631 | $ 73,453 | $ 74,080 | $ 64,432 | $ 441,921 | $ 295,596 | $ 244,953 |
| Cost of goods sold (excluding depreciation, depletion and amortization) | 70,988 | 69,706 | 58,920 | 56,921 | 50,051 | 45,241 | 42,629 | 43,275 | 256,535 | 181,196 | 157,994 |
| Operating expenses | |||||||||||
| Selling, general and administrative | 11,542 | 10,135 | 9,718 | 9,904 | 6,856 | 5,216 | 5,952 | 5,324 | 41,299 | 23,348 | 20,413 |
| Advisory fees to parent | 8,313 | 312 | 313 | 312 | 9,250 | 1,250 | |||||
| Depreciation, depletion and amortization | 7,179 | 5,968 | 5,974 | 5,978 | 5,363 | 5,295 | 5,252 | 5,089 | 25,099 | 20,999 | 19,305 |
| Total operating expenses | 18,721 | 16,103 | 15,692 | 15,882 | 20,532 | 10,823 | 11,517 | 10,725 | 66,398 | 53,597 | 40,968 |
| Operating income | 29,137 | 30,076 | 29,987 | 29,788 | 13,048 | 17,389 | 19,934 | 10,432 | 118,988 | 60,803 | 45,991 |
| Other (expense) income | |||||||||||
| Interest expense | (3,244) | (3,326) | (3,428) | (3,797) | (3,902) | (3,832) | (5,224) | (5,449) | (13,795) | (18,407) | (23,034) |
| Early extinguishment of debt | (6,043) | (6,043) | (10,195) | ||||||||
| Other income, net, including interest income | 3,931 | 348 | 179 | 154 | 528 | 197 | 163 | 174 | 4,612 | 1,062 | 959 |
| Total other (expenses) income | 687 | (2,978) | (3,249) | (3,643) | (3,374) | (3,635) | (11,104) | (5,275) | (9,184) | (23,388) | (32,270) |
| Income before income taxes | 29,824 | 27,098 | 26,738 | 26,145 | 9,674 | 13,754 | 8,830 | 5,157 | 109,805 | 37,415 | 13,721 |
| Income tax expense | 8,030 | 8,302 | 7,287 | 7,032 | (371) | 3,412 | 2,474 | 1,647 | (30,651) | (7,162) | (2,329) |
| Net income | $ 21,794 | $ 18,796 | $ 19,451 | $ 19,113 | $ 10,045 | $ 10,342 | $ 6,356 | $ 3,510 | $ 79,154 | $ 30,253 | $ 11,392 |
| Earnings per share: | |||||||||||
| Basic | $ 0.41 | $ 0.36 | $ 0.37 | $ 0.37 | $ 1.50 | $ 0.61 | $ 0.23 | ||||
| Diluted | $ 0.41 | $ 0.36 | $ 0.36 | $ 0.37 | $ 1.50 | $ 0.61 | $ 0.23 | ||||
| X | ||||||||||
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- Definition
Advisory fees to parent No definition available.
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| X | ||||||||||
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- Definition
Total costs related to goods produced and sold during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Gross amount of debt extinguished. No definition available.
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| X | ||||||||||
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- Definition
This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cost of borrowed funds accounted for as interest that was charged against earnings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The net result for the period of deducting operating expenses from operating revenues. No definition available.
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| X | ||||||||||
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- Definition
The aggregate amount of other income amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) profits on securities (net of losses), and (d) miscellaneous other income items. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Net income | $ 79,154 | $ 30,253 | $ 11,392 |
| Other comprehensive income: | |||
| Unrealized gain (loss) on derivatives (net of tax of $144, $78 and $308 for 2012, 2011, and 2010, respectively) | 227 | 123 | (483) |
| Pension and other post-retirement benefits liability adjustment (net of tax of $1,299, $4,627 and $1,339 for 2012, 2011, and 2010, respectively) | (2,041) | (7,244) | (957) |
| Comprehensive income | $ 77,340 | $ 23,132 | $ 9,952 |
| X | ||||||||||
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- Definition
The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
|
| X | ||||||||||
|
- Definition
Net of tax and reclassifications amount of pension and other postretirement benefit plans (gain) loss included in accumulated other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Unrealized gain (loss) on derivatives, net of tax | $ 144 | $ 78 | $ 308 |
| Tax expenses on Pension and other post-retirement benefits liability adjustment, net of tax | $ 1,299 | $ 4,627 | $ 1,339 |
| X | ||||||||||
|
- Definition
Tax expense on unrealized gain (loss) on derivatives No definition available.
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| X | ||||||||||
|
- Definition
Tax effect, net of reclassification adjustments, of pension and other postretirement benefit plans (gain) loss included in accumulated other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Advisory services termination fee to Parent. No definition available.
|
| X | ||||||||||
|
- Definition
Capital Contributed By Parent No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Contribution of note payable and accrued interest by Parent No definition available.
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| X | ||||||||||
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- Definition
Dividend Paid In Cash No definition available.
|
| X | ||||||||||
|
- Definition
Liability for pension and other post retirement benefits. No definition available.
|
| X | ||||||||||
|
- Definition
Prepayment Penalty On Debt No definition available.
|
| X | ||||||||||
|
- Definition
Principal Payment Of Capital Lease And Technology License Obligations No definition available.
|
| X | ||||||||||
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- Definition
Amount of noncash expense included in interest expense to allocate debt discount and premium, and the costs to issue debt and obtain financing over the related debt instruments. Alternate captions include noncash interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
Gross amount of debt extinguished. No definition available.
|
| X | ||||||||||
|
- Definition
The difference between the sale price or salvage price and the book value of a property, plant, and equipment asset that was sold or retired during the reporting period. This element refers to the gain (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) in cash during the period due to the net increase or decrease in book overdrafts. No definition available.
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period, excluding the portion taken into income, in the liability reflecting revenue yet to be earned for which cash or other forms of consideration was received or recorded as a receivable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in interest payable, which represents the amount owed to note holders, bond holders, and other parties for interest earned on loans or credit extended to the reporting entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The increase (decrease) during the reporting period in the value of prepaid expenses and other assets not separately disclosed in the statement of cash flows, for example, deferred expenses, intangible assets, or income taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of cash paid for interest during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net cash inflow or outflow from financing activity for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The net cash inflow or outflow from investing activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. While for technical reasons this element has no balance attribute, the default assumption is a debit balance consistent with its label. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Reflects the sum of all other revenue and income recognized by the entity in the period not otherwise specified in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow to reacquire common stock during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
The cash outflow for loan and debt issuance costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
The cash outflow for cost incurred directly with the issuance of an equity security. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
The cash inflow from parent as a source of financing that is recorded as additional paid in capital. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from the additional capital contribution to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. No definition available.
|
| X | ||||||||||
|
- Definition
The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from the issuance of an equity stock that has been previously reacquired by the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Capital Contributed By Parent No definition available.
|
| X | ||||||||||
|
- Definition
Minimum Pension Liability Adjustment Equity Statement No definition available.
|
| X | ||||||||||
|
- Definition
This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation". Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Equity impact of aggregate cash, stock, and paid-in-kind dividends declared for all securities (common shares, preferred shares, etc.) during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Equity impact of common stock cash dividends declared by an entity during the period. This element includes paid and unpaid dividends declared during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from the issuance of an equity stock that has been previously reacquired by the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 31, 2012
|
|
| Issuance of common stock, net of issuance cost | $ 9,171 |
|
Common Stock [Member]
|
|
| Common stock cash dividend declared, per share | $ 0.50 |
| Issuance of common stock, per share | $ 17.00 |
| Issuance of common stock, net of issuance cost | $ 9,171 |
| X | ||||||||||
|
- Definition
Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow for cost incurred directly with the issuance of an equity security. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Organization
|
12 Months Ended |
|---|---|
|
Dec. 31, 2012
|
|
| Organization | NOTE A—ORGANIZATION U.S. Silica Holdings, Inc. (“Holdings,” and together with its subsidiaries “we,” “us” or the “Company”), formerly GGC USS Holdings, Inc., was organized as a holding company on November 14, 2008. On November 25, 2008, we acquired Hourglass Acquisitions I, LLC, whose only operating subsidiary was U.S. Silica Company (“U.S. Silica”). On January 31, 2012, we completed an initial public offering of common stock (the “IPO”) through a Registration Statement on Form S-1 (File No. 333-175636), pursuant to which we registered and issued 2,941,176 shares of our common stock, and we registered and certain of our stockholders sold 8,823,529 shares common stock at an offering price of $17.00 per share. On February 6, 2012, we issued all 2,941,176 shares of common stock for an aggregate offering price of approximately $50.0 million and the selling stockholders sold all 8,823,529 shares of common stock for an aggregate offering price of approximately $150.0 million. As a result of the offering, we received net proceeds of approximately $40.8 million, after deducting $3.5 million of underwriting discounts and commissions and offering expenses of $5.7 million. On January 31, 2012, simultaneously with the initial public offering of our common stock, GGC USS Holdings, LLC, our parent and sole stockholder prior to the IPO and now our largest stockholder, contributed to us all of the stock of its wholly-owned subsidiary, GGC RCS Holdings, Inc., and its operating subsidiary, Coated Sand Solutions, LLC. Prior to this transaction, GGC RCS Holdings, Inc. had a $15.0 million note payable to GGC USS Holdings, LLC which, together with accrued interest of $1.7 million, was converted to an equity contribution by GGC USS Holdings, LLC, simultaneously with the IPO. Coated Sand Solutions, LLC is currently producing and developing resin-coated sand proppants for sale into the Oil and Gas proppant market for use in the hydraulic fracturing process. |
| X | ||||||||||
|
- Definition
The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Summary of Significant Accounting Policies
|
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2012
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Significant Accounting Policies | NOTE B—SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation and Consolidation The consolidated financial statements as of December 31, 2012 and 2011 and for the years ended December 31, 2012, 2011 and 2010 (the “Financial Statements”), present our financial position, results of operations, and cash flows. In our opinion, our Financial Statements reflect all normal and recurring adjustments necessary to present fairly our financial position as of December 31, 2012 and 2011, the results of our operations for the years ended December 31, 2012, 2011 and 2010, and our cash flows for the year ended December 31, 2012, 2011 and 2010. We have reclassified certain immaterial amounts in the prior years’ consolidated statement of cash flows within operating activities to conform to the current year presentation. These reclassifications had no effect on previously reported net cash flows from operations. In order to make this report easier to read, we refer throughout to (i) our Consolidated Balance Sheets as our “Balance Sheets,” (ii) our Consolidated Statements of Operations as our “Income Statements,” and (iii) our Consolidated Statements of Cash Flows as our “Cash Flows.” The Financial Statements include the accounts of Holdings and its direct and indirect wholly-owned subsidiaries and GGC RCS Holdings, Inc. (formed in 2010). In consideration of the contribution of GGC RCS Holdings, Inc. to us on January 31, 2012, we and our subsidiaries are presented on a consolidated basis with GGC RCS Holdings, Inc. as of and for the year ended December 31, 2012. As of December 31, 2011 and for the years ended December 31, 2011 and 2010, we and our subsidiaries are presented on a combined basis with GGC RCS Holdings, Inc. All significant intercompany balances and transactions have been eliminated in combination.
We follow FASB Accounting Standards Codification (“ASC”) guidance for identification and reporting of entities over which control is achieved through means other than voting rights. The guidance defines such entities as Variable Interest Entities (“VIEs”). As of December 31, 2012 and for the periods presented herein, we have identified no entities over which we maintain any level of control that would qualify for consolidation under ASC guidance. Use of Estimates and Assumptions The Financial Statements have been prepared in accordance with United States generally accepted accounting principles (“GAAP”). The preparation of the Financial Statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the related disclosure of contingent assets and liabilities at the date of the Financial Statements and the reported amounts of revenues and expenses during the reporting period. The more significant areas requiring the use of management estimates and assumptions relate to mineral reserves that are the basis for future cash flow estimates utilized in impairment calculations and units-of-production amortization calculations; environmental, reclamation and closure obligations; estimates of recoverable minerals; estimates of fair value for certain reporting units and asset impairments (including impairments of goodwill and other long-lived assets); write-downs of inventory to net realizable value; equity-based compensation expense; post-employment, post-retirement and other employee benefit liabilities; valuation allowances for deferred tax assets; reserves for contingencies and litigation; and the fair value and accounting treatment of financial instruments including derivative instruments. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances. Accordingly, actual results may differ significantly from these estimates under different assumptions or conditions. Revenue Recognition Revenue is recognized from a sale when persuasive evidence of an arrangement exists, the price is determinable, the product has been delivered or legal title has been transferred to the customer and collection of the sales price is reasonably assured. Amounts received from customers in advance of revenue recognition are deferred as liabilities. We derive our sales by mining and processing minerals that our customers purchase for various uses. Our sales are primarily a function of the price per ton realized and the volumes sold. In some instances, our sales also include a charge for transportation services it provides to our customers. Our transportation revenue fluctuates based on a number of factors, including the volume of product it transports under contract, service agreements with our customers, the mode of transportation utilized and the distance between our plants and customers. We primarily sell our products under short-term price agreements or at prevailing market rates. For a limited number of customers, we sell under long-term, competitively-bid supply agreements. For the year ended December 31, 2012, we had take-or-pay supply agreements with nine of our customers in the oil & gas proppants segment with initial terms expiring between 2012 and 2016. These agreements define, among other commitments, the volume of product that our customers must purchase, the volume of product that it must provide and the price that it will charge and that our customers will pay for each product. Prices under these agreements are generally fixed and subject to upward adjustment in response to certain cost increases. As a result, our realized prices may not grow at rates consistent with broader industry pricing. For example, during periods of rapid price growth, our realized prices may grow more slowly than those of competitors, and during periods of price decline, our realized prices may outperform industry averages.
We invoice the majority of our clients on a per shipment basis, although for some larger customers, we consolidate invoices weekly or monthly. Standard terms are net 30 days, although extended terms are offered in competitive situations. The amounts invoiced include the amount charged for the product, transportation costs (if paid by us) and costs for additional services as applicable, such as costs related to transload the product from railcars to trucks for delivery to the customer site. Cash and Cash Equivalents Cash and cash equivalents consist of all highly liquid investments with a maturity of three months or less when purchased. Because of the short maturity of these investments, the carrying amounts approximate their fair value. Cash and cash equivalents are invested primarily in money market securities with high quality institutions. Accounts at each institution are insured by Federal Deposit Insurance Corporation. Cash balances at times may exceed federally-insured limits. We have not experienced any losses in such accounts and believe we are not exposed to any significant credit risk on cash. Accounts Receivable The majority of our accounts receivable are due from companies in the glass, oil and natural gas drilling, building products, filler and extenders, foundries and other major industries. Credit is extended based on evaluation of a customer’s financial condition and, generally, collateral is not required. Accounts receivable are generally due within 30 days and are stated at amounts due from customers net of an allowance for doubtful accounts. Accounts outstanding longer than the payment terms are considered past due. We determine our allowance by considering a number of factors, including the length of time trade accounts receivable are past due, our previous loss history, the customer’s current ability to pay its obligation to us, and the condition of the general economy and the industry as a whole. We write-off accounts receivable when they are deemed uncollectible, and payments subsequently received on such receivables are credited to the allowance for doubtful accounts. Our five largest customers accounted for approximately 31%, 25% and 29% of sales in the years ended December 31, 2012, 2011 and 2010, respectively. No single individual customer accounted for more than 10% of sales in the years ended December 31, 2012, 2011 and 2010. Management believes it maintains adequate reserves for potential credit losses; ongoing credit evaluations are performed and collateral is generally not required. Inventories Inventories represent silica and other industrial sand available for shipment. We value inventory at the lower of cost or market. Cost is determined using the first-in, first-out and average cost methods. Property, Plant and Mine Development Property and equipment Property and equipment is recorded at cost and depreciated over their estimated useful lives. Interest incurred during construction of facilities is capitalized and depreciated over the life of the asset. Depreciable properties, mining properties, and mineral deposits acquired in connection with business acquisitions are recorded at fair market value as of the date of acquisition. Costs for normal repairs and maintenance that do not extend economic life or improve service potential are expensed as incurred. Costs of improvements that extend economic life or improve service potential are capitalized and depreciated over the estimated remaining useful life.
Depreciation is recorded using the straight-line method over the assets’ estimated useful life as follows: buildings (15 years); land improvements (10 years); machinery & equipment, including computer equipment and software (3-10 years); furniture & fixtures (8 years). Leasehold improvements are depreciated over the shorter of the asset life or lease term. Construction-in-progress is primarily comprised of machinery and equipment, which has not yet been placed in service. Gains on the sale of assets are included in income when the assets are disposed of provided there is more than reasonable certainty of the collectability of the sales price and any future activities required to be performed by us relating to the disposal of the assets are complete or insignificant. Upon retirement or disposal of assets, all costs and related accumulated depreciation or amortization are written-off. Depletion and amortization of mineral deposits are recorded as the minerals are extracted, based on units of production and engineering estimates of mineable reserves. The impact of revisions to reserve estimates is recognized on a prospective basis. We evaluate the carrying value of our property and equipment if impairment evaluation triggering events occur. If it is determined that the current net book value is in excess of the fair value, the excess of the net book value over the estimated fair value is recorded in our consolidated statements of operations as impairment loss. Fair value is generally estimated using valuation techniques that consider the discounted cash flows of the asset at rates deemed reasonable for the type of asset and prevailing market conditions, appraisals, including recent similar transactions in the market and if appropriate and available, current estimated net sales proceeds from pending offers. We will classify an asset as held for sale when we have committed to a plan to sell the asset, the sale of the asset is probable within one year, and actions to complete the sale are unlikely to change or that the sale will be withdrawn. Accordingly, we typically classify assets as held for sale when our Board of Directors has approved the sale, a binding agreement to purchase the property has been signed under which the buyer has committed a significant amount of nonrefundable cash and no significant financing contingencies exist which could prevent the transaction from being completed in a timely manner. If these criteria are met, we will record an impairment loss if the fair value, less cost to sell, is lower than the carrying amount of the asset and will cease recording depreciation. We will classify the loss, together with the related operating results, including related interest expense on any debt assumed by the buyer or that is required to be repaid as a result of the sale, as discontinued operations on our consolidated statement of operations, presuming that we will not have continuing involvement with the property or asset after the sale, and classify the asset and related liability as held for sale on our consolidated balance sheet. Gains on sales of assets are recognized at the time of sale or deferred and recognized as income in subsequent periods as conditions requiring deferral are satisfied or expire without further cost to us. Mine exploration and development Mine exploration and development costs include engineering and mineral studies, drilling and other related costs to delineate an ore body, and the removal of overburden to initially expose an ore body for production. Costs incurred before mineralization are classified as proven and probable reserves are expensed and classified as exploration or advanced projects, research and development expense. Capitalization of mine development project costs, that meet the definition of an asset, begins once mineralization is classified as proven and probable reserves. Drilling and related costs are capitalized for an ore body where proven and probable reserves exist and the activities are directed at obtaining additional information on the ore body or converting non-reserve mineralization to proven and probable reserves and the benefit is expected to be realized over a period beyond one year. All other drilling and related costs are expensed as incurred. Drilling costs incurred during the production phase for operational ore control are allocated to inventory costs and then included as a component of costs applicable to sales. The cost of removing overburden and waste materials to access the ore body at an open pit mine prior to the production phase are referred to as “pre-stripping costs.” Pre-stripping costs are capitalized during the development of an open pit mine. Where multiple open pits exist at a mining complex utilizing common processing facilities, pre-stripping costs are capitalized at each pit. The removal, production, and sale of de minimis saleable materials may occur during development and are recorded as other income, net of incremental mining and processing costs. The production phase of an open pit mine commences when saleable minerals, beyond a de minimis amount, are produced. Stripping costs incurred during the production phase of a mine are variable production costs that are included as a component of inventory to be recognized in costs applicable to sales in the same period as the revenue from the sale of inventory. Our definition of a mine and the mine’s production phase may differ from that of other companies in the mining industry resulting in incomparable allocations of stripping costs to deferred mine development and production costs. Other mining companies may expense pre-stripping costs associated with subsequent pits within a mining complex. Mine development costs are amortized using the units-of-production method based on estimated recoverable tons in proven and probable reserves. To the extent that these costs benefit an entire ore body, they are amortized over the estimated life of the ore body. Costs incurred to access specific ore blocks or areas that only provide benefit over the life of that area are amortized over the estimated life of that specific ore block or area. Mine reclamation costs We recognize the fair value of any liability for conditional asset retirement obligations, including environmental remediation liabilities when incurred, which is generally upon acquisition, construction or development and/or through the normal operation of the asset, if sufficient information exists to reasonably estimate the fair value of the liability. These obligations generally include the estimated net future costs of dismantling, restoring and reclaiming operating mines and related mine sites, in accordance with federal, state and local regulatory requirements. The liability is accreted over time through periodic charges to earnings. In addition, the asset retirement cost is capitalized as part of the asset’s carrying value and amortized over the life of the related asset. Reclamation costs are periodically adjusted to reflect changes in the estimated present value resulting from the passage of time and revisions to the estimates of either the timing or amount of the reclamation and abandonment costs. The reclamation obligation is based on when spending for an existing environmental disturbance will occur. If the asset retirement obligation is settled for other than the carrying amount of the liability, a gain or loss is recognized on settlement. We review, on an annual basis, unless otherwise deemed necessary, the reclamation obligation at each mine site in accordance with ASC guidance for accounting reclamation obligations. Future remediation costs for inactive mines are accrued based on management’s best estimate at the end of each period of the costs expected to be incurred at a site. Such cost estimates include, where applicable, ongoing care, maintenance and monitoring costs. Changes in estimates at inactive mines are reflected in earnings in the period an estimate is revised.
In connection with our annual review of our reclamation obligations in 2012, we have determined that some of our estimates required revision due to changes in cost estimates and settlement dates at numerous sites with the largest change being caused by favorable legislation at our Rockwood, MI site. These changes in estimates resulted in the reversal of $3.5 million of reclamation obligations in 2012. We reported a liability of $6.7 million and $9.5 million in other long-term obligations related to this obligation as of December 31, 2012 and 2011, respectively. Changes in the asset retirement obligation are as follows:
Goodwill and Other Intangible Assets and Related Impairment Our intangible assets consist of goodwill, which is not being amortized; indefinite lived intangibles, which consist of certain trade names that are not subject to amortization; and customer relationships, which are being amortized on a straight-line basis over their useful life of 20 years. Goodwill represents the excess of purchase price over the fair value of net assets from the business acquisition in 2008. Goodwill and other intangible assets with indefinite lives are reviewed for impairment annually as of October 31 or more frequently whenever events or circumstances change that would more likely than not reduce the fair value of those assets. Prior to conducting a formal impairment test, we assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that is more likely than not (more than 50%) that the fair value of a reporting unit is less than its carrying amount. Such qualitative factors may include the following: macroeconomic conditions; industry and market considerations; cost factors; overall financial performance; and other relevant entity-specific events. If the qualitative assessment determines that an impairment is more likely than not, then the impairment test for goodwill, or other intangible assets with indefinite lives, requires a comparison of the fair value with the carrying amount, including goodwill. If this comparison reflects impairment, then the loss would be measured as the excess of recorded goodwill, or other intangible assets with indefinite lives, over its implied fair value. Implied fair value is the excess of our fair value over the fair value of all recognized and unrecognized assets and liabilities. The evaluation of goodwill, or other intangible assets with indefinite lives, for possible impairment includes estimating our fair value using discounted cash flows and multiples of cash earnings valuation techniques, plus valuation comparisons to similar businesses. These valuations require us to make estimates and assumptions regarding future operating results, cash flows, changes in working capital and capital expenditures, selling prices, profitability, and the cost of capital. Although we believe that the estimates and assumptions used were reasonable, actual results could differ from those estimates and assumptions. As of December 31, 2012 our qualitative assessment did not indicate that it was more likely than not that an impairment had occurred.
As of December 31, 2012, the gross carrying amount of the customer relationships intangible asset was $8.2 million with accumulated amortization of $1.7 million. We review all finite-lived intangible assets for impairment when circumstances indicate that their carrying amounts may not be recoverable. We evaluate the carrying value of all finite-lived intangible assets for impairment by comparing the expected undiscounted future cash flows of the asset to the net book value of the asset. If the expected undiscounted future cash flows are less than the net book value of the assets, the excess of the net book value over the estimated fair value is recorded in our consolidated statements of operations as impairment loss. Fair value is generally estimated using valuation techniques that consider the discounted cash flows of the asset at rates deemed reasonable for the type of asset and prevailing market conditions, replacement cost, appraisals, including recent similar transactions in the market and if appropriate, current estimated net sales proceeds from pending offers. As of December 31, 2012, the remaining useful life of our customer relationships was 15.9 years. The estimated annual amortization in each of the next five years is $411. Debt Issuance Costs Debt issuance costs consist of loan origination costs, which are being amortized using the effective interest method over the term of the related debt principal. Amortization included in interest expense was $515, $265 and $447 for the years ended December 31, 2012, 2011 and 2010, respectively. Transportation Revenue and Expense Transportation revenue is the revenue we receive from charging our customers to deliver product to their locations. Revenue is recognized from a sale when persuasive evidence of an arrangement exists, the price is determinable, the product has been delivered or legal title has been transferred to the customer and collection of the sales price is reasonably assured. Transportation expense is the cost we pay to ship product from its production facilities to customer facilities. Environmental Costs Environmental costs, other than qualifying capital expenditures, are accrued at the time the exposure becomes known and costs can be reasonably estimated. Costs are accrued based upon management’s estimates of all direct costs, after taking into account expected reimbursement by third parties (primarily the sellers of acquired businesses), and are reviewed by outside consultants. Environmental costs are charged to expense unless a settlement with an indemnifying party has been reached. Self-Insurance We are self-insured for various levels of employee health insurance coverage, workers’ compensation and third party product liability claims alleging occupational disease. We purchase insurance coverage for claim amounts which exceed our self-insured retentions. Depending on the type of insurance, these self-insured retentions range from $100,000 to $500,000 per occurrence. Our insurance reserves are accrued based on estimates of the ultimate cost of claims expected to occur during the covered period. These estimates are prepared with the assistance of outside actuaries and consultants. Our actuaries periodically review the volume and amount of claims activity, and based upon their findings, we adjust our insurance reserves accordingly. The ultimate cost of claims for a covered period may differ from our original estimates.
The current portion of our self-insurance reserves is included in accrued liabilities and the non-current portion is included in other long-term obligations in our consolidated balance sheets. Our self-insurance reserves totaled $4.0 million and $3.6 million at December 31, 2012 and 2011, respectively. Of these amounts, $1.3 million and $1.2 million, respectively, were classified as current. Equity-based Compensation We recognize the cost of employee services rendered in exchange for awards of equity instruments, such as stock options and restricted stock, based on the fair value of those awards at the date of the grant. Compensation expense for equity units is recognized, on a straight-line basis, net of forfeitures, over the requisite service period for the fair value of the awards that actually vest. Income Taxes Deferred taxes are provided on the liability method whereby deferred tax assets are recognized for deductible temporary differences and operating loss and tax credit carry forwards and deferred tax liabilities are recognized for taxable temporary differences. This approach requires recognition of deferred tax liabilities and assets for the expected future tax consequences of events that have been included in the financial statements or tax returns. Under this method, deferred tax liabilities and assets are determined based upon the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the expenses are expected to reverse. Valuation allowances are provided if, based on the weight of available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. We recognize a tax benefit associated with an uncertain tax position when, in management’s judgment, it is more likely than not that the position will be sustained upon examination by a taxing authority. For a tax position that meets the more-likely-than-not recognition threshold, we initially and subsequently measure the tax benefit as the largest amount that it judges to have a greater than 50% likelihood of being realized upon ultimate settlement with a taxing authority. The liability associated with unrecognized tax benefits is adjusted periodically due to changing circumstances, such as the progress of tax audits, case law developments and new or emerging legislation. Such adjustments are recognized entirely in the period in which they are identified. The effective tax rate includes the net impact of changes in the liability for unrecognized tax benefits and subsequent adjustments as considered appropriate by management. The largest permanent item in computing both our effective tax rate and taxable income is the deduction allowed for statutory depletion. The impact of statutory depletion on the effective tax rate is presented in Note P to these financial statements. The deduction for statutory depletion does not necessarily change proportionately to changes in income before income taxes. Net Income per Common Share Basic and diluted income per share is presented for net income. Basic income per share is computed by dividing income available to common stockholders by the weighted-average number of outstanding common shares for the period. Diluted income per share reflects the potential dilution that could occur if securities or other contracts that may require the issuance of common shares in the future were converted. Diluted income per share is computed by increasing the weighted-average number of outstanding common shares to include the additional common shares that would be outstanding after conversion and adjusting net income for changes that would result from the conversion. Only those securities or other contracts that result in a reduction in earnings per share are included in the calculation.
Comprehensive Income In addition to net income, comprehensive income (loss) includes all changes in equity during a period, such as adjustments to minimum pension liabilities and the effective portion of changes in fair value of derivative instruments that qualify as cash flow hedges. Financial Instruments We currently use interest rate hedge agreements and have historically utilized natural gas hedge agreements to manage interest and energy costs and the risk associated with changing interest rates and natural gas prices. Amounts to be paid or received under these hedge agreements are accrued as interest rates or natural gas prices change and are recognized over the life of the hedge agreements as an adjustment to interest expense or, in the case of natural gas, cost of goods sold. Our policy is to not hold or issue derivative financial instruments for trading or speculative purposes. When entered into, these financial instruments are designated as hedges of underlying exposures, associated with our long-term debt and energy costs, and are monitored to determine if they remain effective hedges. Gains and losses on derivatives designated as cash flow hedges are recorded in other comprehensive income net of tax and reclassified to earnings in a manner that matches the timing of the earnings impact of the hedged transactions. The ineffective portion of all hedges, if any, is recognized currently in income. Additional disclosures for derivative instruments are presented in Note L to these financial statements.
Recently Adopted Accounting Pronouncements In May 2011, the Financial Accounting Standards Board (“FASB”) issued changes to conform existing guidance regarding fair value measurement and disclosure between GAAP and International Financial Reporting Standards. These changes both clarify the FASB’s intent about the application of existing fair value measurement and disclosure requirements and amend certain principles or requirements for measuring fair value or for disclosing information about fair value measurements. The clarifying changes relate to the application of the highest and best use and valuation premise concepts, measuring the fair value of an instrument classified in a reporting entity’s stockholders’ equity, and disclosure of quantitative information about unobservable inputs used for Level 3 fair value measurements. The amendments relate to measuring the fair value of financial instruments that are managed within a portfolio; application of premiums and discounts in a fair value measurement; and additional disclosures concerning the valuation processes used and sensitivity of the fair value measurement to changes in unobservable inputs for those items categorized as Level 3, a reporting entity’s use of a nonfinancial asset in a way that differs from the asset’s highest and best use, and the categorization by level in the fair value hierarchy for items required to be measured at fair value for disclosure purposes only. We adopted this guidance, effective January 1, 2012, with no material impact on our Financial Statements. In June 2011, the FASB issued changes to the presentation of comprehensive income. These changes give an entity the option to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements; the option to present components of other comprehensive income as part of the statement of changes in stockholders’ equity was eliminated. The items that must be reported in other comprehensive income or when an item of other comprehensive income must be reclassified to net income were not changed. Additionally, no changes were made to the calculation and presentation of earnings per share. We adopted this guidance, effective January 1, 2012, with no material impact on our Financial Statements. In September 2011, the FASB issued changes to the testing of goodwill for impairment. These changes provide an entity the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not (more than 50%) that the fair value of a reporting unit is less than its carrying amount. Such qualitative factors may include the following: macroeconomic conditions; industry and market considerations; cost factors; overall financial performance; and other relevant entity-specific events. If an entity elects to perform a qualitative assessment and determines that an impairment is more likely than not, the entity is then required to perform the existing two-step quantitative impairment test, otherwise no further analysis is required. An entity also may elect not to perform the qualitative assessment and, instead, go directly to the two-step quantitative impairment test. These changes become effective for us for any goodwill impairment test performed on January 1, 2012 or later, although early adoption is permitted. We adopted this guidance, effective January 1, 2012 with no material impact on our Financial Statements. In September 2011, the FASB issued changes to increase the level of disclosure about an employer’s participation in a multiemployer pension plan. These changes require that employers provide additional separate quantitative and qualitative disclosures for multiemployer pension plans and multiemployer other post-retirement benefit plans, including the significant multiemployer plan(s) in which an employer participates, the level at which an employer participates in the plan(s), the financial health of the plan(s) and the nature of the employer commitments to the plan(s). We adopted this guidance, effective January 1, 2012 with no material impact on our Financial Statements. In July 2012, the FASB issued changes to the testing of indefinite-lived intangible assets for impairment. These changes provide an entity the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not (more than 50%) that the fair value of an indefinite-lived intangible asset is less than its carrying amount. In accordance with the amendment, an entity has the option first to assess qualitative factors to determine whether the existence of events and circumstances indicates that it is more likely than not that the indefinite-lived intangible asset is impaired. In conducting a qualitative assessment, an entity should consider the extent to which relevant events and circumstances, both individually and in the aggregate, could have affected the significant inputs used to determine the fair value of the indefinite-lived intangible asset since the last assessment. If, after assessing the totality of events and circumstances, an entity concludes that it is not more likely than not that the indefinite-lived intangible asset is impaired, then the entity is not required to take further action. However, if an entity concludes otherwise, then it is required to determine the fair value of the indefinite-lived intangible asset and perform the quantitative impairment test by comparing the fair value with the carrying amount. An entity also has the option to bypass the qualitative assessment for any indefinite-lived intangible asset in any period and proceed directly to performing the quantitative impairment test. An entity will be able to resume performing the qualitative assessment in any subsequent period. These changes become effective for us for any impairment test on our indefinite-lived intangible assets performed on January 1, 2013 or later, although early adoption is permitted. We adopted this guidance, effective for the 2012 reporting period with no material impact on our Financial Statements. |
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The entire disclosure for all significant accounting policies of the reporting entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Earnings Per Share
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| Earnings Per Share | NOTE C—EARNINGS PER SHARE On November 25, 2008, we issued 1,000 shares of our common stock to our parent company and sole stockholder, GGC USS Holdings, LLC, for an aggregate purchase price of $10.00. The shares were issued in reliance on Section 4(2) of the Securities Act as the sale of the securities did not involve a public offering. Appropriate legends were affixed to the securities issued in this transaction. On July 8, 2011, our board of directors approved and we subsequently filed an amended and restated certificate of incorporation, which among other things, created a 50,000-for-one split of our common stock. All of our common stock share and per share data contained in the financial statements has been retroactively adjusted to reflect this stock split for all periods presented.
Basic income per common share is computed by dividing income available to common stockholders by the weighted average number of common shares outstanding for the period. Diluted income per common share is computed similarly to basic income per common share except that the weighted average number of common shares outstanding is increased to include the number of additional common shares that would have been outstanding if the potentially dilutive common shares had been issued. In accordance with the applicable accounting guidance for calculating earnings per share, we did not include our calculation of diluted earnings per share for the applicable periods, stock options where the exercise prices were greater than the average market prices.
There were no outstanding options to purchase common stock at December 31, 2012, 2011 and 2010 that were anti-dilutive. |
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The entire disclosure for earnings per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Capital Structure and Accumulated Comprehensive Income
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Dec. 31, 2012
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| Capital Structure and Accumulated Comprehensive Income | NOTE D—CAPITAL STRUCTURE AND ACCUMULATED COMPREHENSIVE INCOME Common Stock Our Amended and Restated Certificate of Incorporation, authorizes up to 500,000,000 shares of common stock, par value of $0.01. Subject to the rights of holders of any series of preferred stock, all of the voting power of the stockholders of the Corporation shall be vested in the holders of the common stock. There were 52,920,704 shares of common stock issued and outstanding at December 31, 2012. As of December 31, 2011, there were 50,000,000 shares issued and outstanding. On December 10, 2012, a special cash dividend of $0.50 per share of outstanding common stock was declared. The dividend was paid on December 28, 2012 to stockholders of record as of the close of business on December 20, 2012. Management and our Board of Directors remain committed to evaluating additional ways of creating shareholder value. Any determination to pay dividends and other distributions in cash, stock, or property by U.S. Silica in the future will be at the discretion of our Board of Directors and will be dependent on then-existing conditions, including our business condition, our financial condition, results of operations, liquidity, capital requirements, contractual restrictions including restrictive covenants contained in debt agreements, and other factors. Preferred Stock Our Amended and Restated Certificate of Incorporation authorizes our Board of Directors to issue up to 10,000,000 shares, in the aggregate, of preferred stock, par value of $0.01 in one or more series and to fix the preferences, powers and relative, participating, optional or other special rights and qualifications, limitations or restrictions thereof, including the dividend rate, conversion rights, voting rights, redemption rights and liquidation preference and to fix the number of shares to be included in any such series without any further vote or action by our stockholders. There are no shares of preferred stock issued or outstanding at December 31, 2012 and 2011. At present, we have no plans to issue any preferred stock. Initial Public Offering On January 31, 2012, we completed an initial public offering of 2,941,176 shares of our common stock at an offering price of $17.00 per share for an aggregate offering price of approximately $50.0 million. As a result of the offering, we received net proceeds of approximately $40.8 million, after deducting $3.5 million of underwriting discounts and commissions and offering expenses of $5.7 million. Simultaneously with the initial public offering of our common stock, GGC USS Holdings, LLC, our parent and sole stockholder prior to the IPO and now our largest stockholder, contributed to us all of the stock of its wholly-owned subsidiary, GGC RCS Holdings, Inc., and its operating subsidiary, Coated Sand Solutions, LLC. Prior to this transaction, GGC RCS Holdings, Inc. had a $15.0 million note payable to GGC USS Holdings, LLC, which, together with accrued interest of $1.7 million, was converted to an equity contribution by GGC USS Holdings, LLC. Share Repurchase Program On June 11, 2012, our Board of Directors authorized us to repurchase up to $25.0 million of our common stock. The authorization remains open for a period of 18 months, concluding on December 11, 2013. We are authorized to repurchase, from time to time, shares of our outstanding common stock on the open market or in privately negotiated transactions using available cash. The timing and amount of stock repurchases will depend on a variety of factors, including market conditions and corporate and regulatory considerations. The share repurchase program may be suspended, modified or discontinued at any time, and we have no obligation to repurchase any additional amount of our common stock under the program. We intend to make all repurchases in compliance with applicable regulatory guidelines and to administer the plan in accordance with applicable laws, including Rule 10b-18 of the Securities Exchange Act of 1934, as amended. As of December 31, 2012, we have repurchased 100,000 shares of our common stock, at an average price of $10.72 and have the authorization to repurchase up to an additional $23.9 million of our common stock under the program. Of the 100,000 shares repurchased, 9,528 have been re-issued to satisfy employee option exercises leaving total treasury shares of 90,472 as of December 31, 2012. |
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- Definition
The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Accounts Receivable
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Dec. 31, 2012
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| Accounts Receivable | NOTE E—ACCOUNTS RECEIVABLE At December 31, 2012 and 2011, accounts receivable consisted of the following:
Trade receivables relate to sales of commercial silica, for which credit is extended based on the customer’s credit history. Other receivables primarily represent amounts due from an insurance settlement under an indemnity (Note O). Changes in our allowance for doubtful accounts are as follows:
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The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Inventories
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| Inventories | NOTE F—INVENTORIES At December 31, 2012 and 2011, inventories consisted of the following:
Inventories include spare parts and supplies for routine facilities maintenance, raw stockpiles and silica and other industrial sand available for shipment. We value inventory at the lower of cost or market. Cost is determined using the first-in, first-out and average cost methods. |
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The entire disclosure for inventory. This may include, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the major classes of inventory, and the nature of the cost elements included in inventory. If inventory is stated above cost, accrued net losses on firm purchase commitments for inventory and losses resulting from valuing inventory at the lower-of-cost-or-market may also be included. For LIFO inventory, may disclose the amount and basis for determining the excess of replacement or current cost over stated LIFO value and the effects of a LIFO quantities liquidation that impacts net income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Property, Plant and Mine Development
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Dec. 31, 2012
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| Property, Plant and Mine Development | NOTE G—PROPERTY, PLANT AND MINE DEVELOPMENT At December 31, 2012 and 2011, property, plant and mine development consisted of the following:
Depreciation expense, including depletion and amortization, recognized during the year ended December 31, 2012, 2011 and 2010 was $25,099, $20,999 and $19,305, respectively. As of December 31, 2012, we hold no assets under a capital lease obligation. The amount of interest costs capitalized in property, plant and equipment was $934, $575 and $456 for the year ended December 31, 2012, 2011 and 2010, respectively. |
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- Definition
The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Accrued Liabilities
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Dec. 31, 2012
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| Accrued Liabilities | NOTE H—ACCRUED LIABILITIES At December 31, 2012 and 2011, accrued liabilities consisted of the following:
We are self-insured for health care claims for eligible participating employees and qualified dependent medical claims, subject to deductibles and limitations. Our liabilities for claims incurred but not reported (IBNR) are determined based on an estimate of the ultimate aggregate liability for claims incurred. The estimate is calculated from actual historical claim rates and reviewed and adjusted periodically, as necessary. Other accrued liabilities consist of employee related compensation costs, taxes payable, accrued rebates, accrued shipping costs, accrued professional fees and other immaterial items. |
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- Definition
The entire disclosure for accrued liabilities that represent more than 5% of total current liabilities as of the balance sheet dates. No definition available.
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Debt
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Dec. 31, 2012
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| Debt | NOTE I—DEBT At December 31, 2012 and 2011, debt consisted of the following:
Revolving Line-of-Credit We have an asset-based revolving line-of-credit agreement (the “Revolver”) with Wells Fargo Bank, National Association (“Wells Fargo”), which expires October 31, 2016. Advances under the credit agreement bear interest at either, London Interbank Offered Rate (“LIBOR”), plus 275 basis points, or Prime plus 175 basis points, at our sole option. The interest rate is reduced by 25 basis points when availability under the credit agreement is greater than $10 million. The interest rate on the line-of-credit was 5.0% at December 31, 2012 and 2011. On December 31, 2012, we amended our Revolver. The primary revisions to the Revolver included an increase of the commitment under the Revolver from $35 million to $50 million, and the letter of credit sublimit from $15 million to $20 million; provided, however, that the aggregate principal amount of the loans and letters of credit obligations outstanding at any one time shall not exceed the borrowing base as calculated pursuant to the agreement. The amendment also extended the termination date of the Revolver from October 31, 2015 to October 31, 2016, reduced prices and fees on borrowings, letters of credit and unused commitments and added an additional subsidiary, Coated Sand Solutions, LLC, as a co-borrower. Monthly borrowing availability (the borrowing base) is determined by a formula, taking into consideration eligible accounts receivable and inventory, reduced by any outstanding letters of credit and a provision based on the market value of any derivatives in place with Wells Fargo. Each day, all cash receipts are automatically applied as a reduction against any advances made by Wells Fargo to us, and subject to the satisfaction or waiver of the conditions to borrowings to meet its daily cash requirements, up to the amount available under the borrowing base. If the monthly borrowing base is less than the $50.0 million total line-of-credit, then, at Wells Fargo’s sole discretion, advances in excess of the borrowing base may be made up to the full amount of the $50.0 million line-of-credit. The fixed charge coverage and leverage ratios are not applicable when availability is above $6.5 million.
As of December 31, 2012, the available borrowing base was $43.0 million, with nothing drawn as of that date and $10.9 million allocated for letters of credit, leaving $32.1 million available for general corporate use under this revolving credit agreement. Senior Secured Credit Facility We entered into a $102 million senior secured term loan facility (the “Term Loan”) under the conditions set forth in a credit agreement dated November 25, 2008 (the “Term Loan Agreement”). On May 7, 2010 the Term Loan Agreement was amended in several ways including an increase in the principal, a reduction in the interest rate, and an extension of the expiration date to May 7, 2016. As a result of the refinancing that occurred May 7, 2010, we recorded a charge to the Statement of Operations of $10.2 million for early debt extinguishment. This charge includes the write-off of the debt issuance cost and the original issue discount associated with the original term loan and note purchase agreements as well as lenders fees incurred as a result of the modification of these agreements. On June 8, 2011, we again refinanced the Term Loan. Significant changes to the Term Loan Agreement included an increase in principal to $260 million from $165 million, a reduction in the interest rate to either LIBOR plus 375 basis points (previously 400) or Prime plus 275 basis points (previously 300) and an extension in the maturity date from May 7, 2016 to June 8, 2017. The amended Term Loan was issued at a 0.5% original issue discount of $825 which is being amortized as additional interest expense over the life of the loan based on the effective interest method. $75.0 million of the proceeds from the refinancing was used to prepay the mezzanine loan facility in full. As a result of the refinancing that occurred June 8, 2011, we recorded a charge to the Statement of Operations of $6.0 million for early debt extinguishment. This charge includes the write-off of the debt issuance cost and the original issue discount associated with the original term loan, subordinated notes and note purchase agreements, as well as lenders fees incurred as a result of the modification of these agreements. On January 31, 2012, we again amended our Term Loan Agreement. The primary revisions to the Term Loan Agreement were the elimination of a requirement to provide monthly financial reports, removal of financial covenant restrictions related to capital expenditures, provide flexibility to make investments and acquisitions and to incur indebtedness, and to provide a new subsidiary guarantee from Coated Sand Solutions, LLC. The Term Loan is secured by substantially all of our assets with the exception of our accounts receivable and inventory, for which we have pledged as collateral under the Revolver. The above agreements contain various covenants and conditions that, among other things, limit our ability to engage in certain transactions and maintain certain financial covenants, including a leverage ratio and a fixed charge coverage ratio. As of December 31, 2012, we are in compliance with all covenants in accordance with our debt agreements. Short-term Notes On December 30, 2011, in connection with the land acquisition in Sparta, Wisconsin, we issued a short-term note for $4.0 million with a stated interest rate of 6%. The note required only quarterly interest payments. On December 14, 2012 the note matured and the outstanding principal was repaid in full.
Debt Maturities At December 31, 2012, contractual maturities of long-term debt are as follows:
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- Definition
The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Deferred Revenue
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Dec. 31, 2012
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| Deferred Revenue | NOTE J—DEFERRED REVENUE On November 25, 2008, we, through an affiliate, received advances from two customers totaling $27 million. The deposits give these customers the right to purchase certain products for a fixed price at certain minimum volumes. In addition, the customers have security on their deposit in the form of promissory notes with an affiliate collateralized by undivided mineral interests in our mineral deposits. These notes originally bore interest at 10% compounded quarterly, to the extent any interest is unpaid. The obligations and related interest are reduced as shipments occur with a portion of the sales price being received in cash and a smaller noncash portion reducing first any accrued interest and then, to the extent available, any outstanding principal. As such, the notes do not require any payments in cash. The notes mature on December 31, 2015 and November 25, 2016. In December 2009, $12 million of the notes were amended to reduce the interest rate to 5%, retroactive to November 25, 2008. Effective January 1, 2010, the remaining $15 million was amended to reduce the interest rate to 6%, prospectively. |
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- Definition
The entire disclosure for deferred revenues at the end of the reporting period, and description and amounts of significant changes that occurred during the reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Fair Value Accounting
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Dec. 31, 2012
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| Fair Value Accounting | NOTE K—FAIR VALUE ACCOUNTING Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Cash equivalents Due to the short-term maturity, we believe our cash equivalent instruments at December 31, 2012 and 2011 approximate their reported carrying values. Long-Term Debt, including current maturities We believe that the fair values of our long-term debt, including current maturities, approximates their carrying values and based on their effective interest rates compared to current market rates. Derivative Instruments The estimated fair value of our derivative assets (interest rate caps) are recorded at each reporting period and are based upon widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each derivative contract. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. We also incorporate credit valuation adjustments to appropriately reflect both our nonperformance risk as well as that of the respective counterparty in the fair value measurements. Although we have determined that the majority of the inputs used to value our derivatives fall with Level 2 of the fair value hierarchy, the credit valuation adjustments associated with our derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default of ourselves and our counterparties. However, as of December 31, 2012, we have assessed that the impact of the credit valuation adjustments on the overall valuation of our derivative positions is not significant. As a result, we have determined that our derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy. In accordance with the fair value hierarchy, the following table presents the fair value as of December 31, 2012, of those derivative assets that we must measure at fair value on a recurring basis:
In accordance with the fair value hierarchy, the following table presents the fair value as of December 31, 2011, of those derivative assets that we must measure at fair value on a recurring basis:
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- Definition
The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Derivative Instruments
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Dec. 31, 2012
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| Derivative Instruments | NOTE L—DERIVATIVE INSTRUMENTS We are exposed to certain risk arising from both our business operations and economic conditions. We principally manage our exposure to a wide variety of business and operation risks through management of our core business activities. Specifically, we enter into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or payment of future known and unknown cash amounts, the value of which are determined by interest rates. Interest rate derivatives are utilized in the normal course of business to manage our interest cost and the risk associated with changing interest rates. We do not use derivative financial instruments for trading or speculative purposes. By their nature, all such instruments involve risk, including the possibility that a loss may occur from the failure of another party to perform according to the terms of a contract (credit risk) or the possibility that future changes in market price may make a financial instrument less valuable or more onerous (market risk). As is customary for these types of instruments, we do not require collateral or other security from other parties to these instruments. In management’s opinion, there is no significant risk of loss in the event of nonperformance of the counterparties to these financial instruments. Cash Flow Hedges of Interest Rate Risk Our objectives in using interest rate derivatives are to add stability to interest expense and to manage our exposure to interest rate movements. To accomplish this objective, we primarily use interest rate cap agreements as part of our interest rate risk management strategy. Interest rate caps designated as cash flow hedges involve the receipt of variable-rate amounts from a counterparty if interest rates rise above the strike rate on the contract in exchange for an upfront premium. In connection with the Term Loan, we have entered into two interest rate cap agreements that effectively place an upper limit for one-month LIBOR at 4.0 percent on the interest rate charged for $130.0 million of our floating rate Term Loan. On March 31, 2012, one of the agreements with a notional amount of $100.0 million matured. Concurrently with the maturity, the notional amount of a second agreement with an original notional amount of $30.0 million automatically increased to $130.0 million per the terms of the contract. No additional expense was reclassified from accumulated other comprehensive income or recognized directly in earnings as a result of the maturity or adjustment. We assess the effectiveness of our hedges in offsetting the variability in the cash flow of the hedged obligations on a quarterly basis. The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in equity as accumulated other comprehensive income and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. The ineffective portion of the change in fair value of the derivatives is recognized directly in earnings. During the year ended December 31, 2012 and 2011, we had no ineffectiveness for such contracts. Cash Flow Hedges of Commodities Risk Our objectives in using commodities derivatives are to add stability to energy costs and to manage our exposure to fluctuations in natural gas prices. To accomplish this objective, we have historically used natural gas swap agreements as part of our commodities risk management strategy. These hedge agreements are used to exchange the difference between natural gas prices calculated by reference to an agreed-upon notional principal amount or natural gas quantity. We had entered into natural gas swap agreements that effectively placed a fixed price for a specific quantity of natural gas. The agreements hedged against the increase in natural gas prices for the purchase of 420,000 MMBTU. The agreements matured on December 31, 2011. The following table summarizes the fair value of our derivative instruments. See Note K for additional disclosures regarding the estimated fair values of our derivative instruments at December 31, 2012, and 2011.
We have designated these contracts as qualified cash flow hedges. Accordingly, the effective portion of the gain or loss on the derivative instrument is reported as a component of other comprehensive income and recognized in earnings in the same period or periods during which the hedged transaction affects earnings.
The following table summarizes the effect of derivatives instruments on our income statements and our condensed consolidated statements of comprehensive income for the years ended December 31, 2012, 2011 and 2010.
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- Definition
The entire disclosure for the entity's entire derivative instruments and hedging activities. Describes an entity's risk management strategies, derivatives in hedging activities and non-hedging derivative instruments, the assets, obligations, liabilities, revenues and expenses arising therefrom, and the amounts of and methodologies and assumptions used in determining the amounts of such items. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Equity-Based Compensation
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Dec. 31, 2012
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| Equity-Based Compensation | NOTE M—EQUITY-BASED COMPENSATION During 2009, the board of directors of our parent company, GGC USS Holdings, LLC, approved, and the parent company implemented, a management equity program (the “Equity Program”). The Equity Program granted Class C and Class D member units in the parent company, GGC USS Holdings, LLC, to three members of executive management. As of December 31, 2012, approximately 2,182,209 Class C and 3,680,855 Class D equity units were vested. Under the Equity Program, as of December 31, 2012, approximately 3,680,855 and 3,680,855 Class C and Class D equity incentive units, respectively, were authorized to be granted. The Class C units vest ratably over five years. These units have no exercise price and as such the fair value of the incentive units is equal to the fair value of the underlying equity units. The Class D units were fully vested upon grant in 2009. Even though the equity was granted at the former parent company, we recognized compensation expense related to Class C equity incentive units of $208, $239 and $383 in the years ended December 31, 2012, 2011 and 2010, respectively. During 2012, 210,333 Class C equity incentive units were forfeited. As a result, in 2012 we recorded a reversal of previously recognized compensation expense of $11 associated with these units and cancelled the remaining unamortized expense of $109. During 2011, 867,625 Class C equity incentive units were forfeited resulting in a reversal of previously recognized compensation expense of $344 associated with these units and canceled the remaining unamortized expense of $476. As of December 31, 2012, there was approximately $200 of total unrecognized compensation expense related to unvested Class C equity incentive units. That cost is expected to be recognized over a weighted-average period of 1.5 years. The grant date fair value of Class C and D equity incentive units was $0.52 and $0.17, respectively.
Our activity with respect to Class C equity incentive units for 2012, 2011, and 2010 was as follows:
The total fair value of equity incentive units vested for the years ended December 31, 2012, 2011 and 2010 was $219, $260 and $383, respectively. Fair value of the underlying equity units is determined by utilizing the Black-Scholes pricing model and taking into consideration the rights and preferences of the underlying equity units. The following table illustrates the assumptions used in the Black-Scholes pricing model:
Risk-free interest rate—This is an interpolated rate from the U.S. constant maturity treasury rate for a term corresponding to the time to liquidity event, as described below. An increase in the risk-free rate will increase compensation expense. Expected volatility—This is a measure of the amount by which the price of various comparable companies’ common stock has fluctuated or is expected to fluctuate, our common stock was not publicly-traded at the time of issuance. The comparable companies were selected by analyzing public companies in the industry based on various factors including, but not limited to, company size, financial data availability, active trading volume, and capital structure. An increase in the expected volatility will increase compensation expense. Estimated term—This is the period of time over which the underlying equity units are expected to remain outstanding. An increase in the expected term will increase compensation expense. In July 2011, we adopted the U.S. Silica Holdings, Inc. 2011 Incentive Compensation Plan (the “2011 Plan”), which provides for grants of stock options, stock appreciation rights, restricted stock and other incentive-based awards. In conjunction with the implementation of the 2011 Plan, we filed an amended and restated certificate of incorporation which, among other things, increased the authorized shares of common stock to 100 million and changed our name from GGC USS Holdings, Inc. to U.S. Silica Holdings, Inc. The amended and restated certificate of incorporation also created a 50,000-for-one split of our common stock. All of our common stock share and per share data contained in the financial statements have been retroactively adjusted to reflect this stock split for all periods presented. As of December 31, 2012, there were a total of 1,823,400 options outstanding, 500,771 of which are exercisable, at a weighted-average exercise price of $14.38. The options vest on a graded vesting schedule and the related compensation expense is recognized over the vesting period of each separately vesting portion. We recognized $2.2 million and $1.0 million of equity-based compensation expense related to these options during the years ended December 31, 2012 and 2011, respectively. As of December 31, 2012, there was $5.8 million of total unrecognized compensation expense related to these options, which is expected to be recognized over a weighted-average period of approximately 3.05 years. Our activity with respect to stock options for the year ended December 31, 2012 and 2011 was as follows:
The total intrinsic value of stock options exercised in 2012 was $98.4. Cash received from options exercised in 2012 was $46.3. The actual tax benefit realized for the tax deductions from option exercises in 2012 totaled $18.0. In calculating the compensation expense for options granted, we have estimated the fair value of each grant issued through December 31, 2012 using the Black-Scholes option-pricing model. The fair value of stock options granted have been calculated based on the stock price on the date of the option grant, the exercise price of the option and the following assumptions, which are evaluated and revised, as necessary, to reflect market conditions and experience. These assumptions are the weighted-average of the assumptions used for all grants which occurred during the respective fiscal year.
The following table illustrates the assumptions used in the Black-Scholes pricing model for options granted during the respective fiscal year:
Risk-free interest rate—This is an interpolated rate from the U.S. constant maturity treasury rate for a term corresponding to the expected term, as described below. An increase in the risk-free rate will increase compensation expense. Expected volatility—This is a measure of the amount by which the price of various comparable companies’ common stock has fluctuated or is expected to fluctuate, as our common stock has not been publicly-traded for an adequate period of time. The comparable companies were selected by analyzing public companies in the industry based on various factors including, but not limited to, company size, financial data availability, active trading volume, and capital structure. An increase in the expected volatility will increase compensation expense. Expected term—This is the period of time over which the options are expected to remain outstanding. An increase in the expected term will increase compensation expense. The computation of the expected term is based on the simplified method as our stock options are standard options and we have little recent history of exercise data. Under the simplified method, the expected term is presumed to be the mid-point between the average vesting date and the end of the contractual term. While we declared a special cash dividend of $0.50 per share of outstanding common stock on December 10, 2012, our expected divided yield is equal to 0.00% as we have never declared a recurring dividend on our common stock and our board has not approved the payment of a dividend in the foreseeable future. Our expected forfeiture rate is the estimated percentage of options granted that are expected to be forfeited or cancelled on an annual basis before becoming fully vested. We have assumed that there will be no forfeitures due to the fact that we do not have adequate historical forfeiture data on which to base the assumption.
As of December 31, 2012, there were a total of 70,000 shares of restricted stock. The restricted stock vests on a graded vesting schedule and the related compensation expense is recognized over the vesting period of each separately vesting portion. The fair value of the restricted stock awards is equal to the market price of our stock at date of grant. We recognized $84 of equity-based compensation expense related to these restricted stock shares during the year ended December 31, 2012. As of December 31, 2012, there was $1.0 million of total unrecognized compensation expense related to these restricted stock shares, which is expected to be recognized over a period of 3.35 years.
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- Definition
The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Leases
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Dec. 31, 2012
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| Leases | NOTE N—LEASES We are obligated under certain operating leases for railroad cars, office space, mining property, mining/processing equipment and transportation and other equipment. Certain operating lease agreements include options to purchase the equipment for fair market value at the end of the original lease term. Future minimum annual commitments under such operating leases at December 31, 2012 are as follows:
Expense related to operating leases and rental agreements for the years ended December 31, 2012, 2011 and 2010 totaled approximately $11.9 million, $6.5 million and $4.3 million, respectively. In general, the above leases include renewal options and provide that we pay for all utilities, insurance, taxes and maintenance. |
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- Definition
The entire disclosure for lessee entity's leasing arrangements including, but not limited to, all of the following: (a.) The basis on which contingent rental payments are determined, (b.) The existence and terms of renewal or purchase options and escalation clauses, (c.) Restrictions imposed by lease agreements, such as those concerning dividends, additional debt, and further leasing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Commitments and Contingencies
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Dec. 31, 2012
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| Commitments and Contingencies | NOTE O—COMMITMENTS AND CONTINGENCIES Our operating subsidiary, U.S. Silica Company (“U.S. Silica”), has been named as a defendant in two product liability claims alleging silica exposure causing silicosis filed in the period January 1, 2012 to December 31, 2012. U.S. Silica was named as defendant in three claims filed in 2011, and ten filed in 2010. U.S. Silica has been named as a defendant in similar suits since 1975. As of December 31, 2012, there were 102 active silica-related products liability claims pending in which U.S. Silica is a defendant. Although the outcomes of these claims cannot be predicted with certainty, in the opinion of management, the ultimate resolution of these matters will not have a material adverse effect on our financial position or results of operations.
Prior to 1986, U.S. Silica had numerous insurance policies and an indemnity from a former owner that covered silicosis claims. In the fourth quarter of 2012, U.S. Silica settled all rights under the indemnity and its underlying insurance policies receiving $5.1 million from the parties involved. As a result of the settlement, the indemnity and related policies are no longer available to U.S. Silica and U.S. Silica will not seek reimbursement for any defense costs or claim payments. Other insurance policies, however, continue to remain available to U.S. Silica. We have recorded estimated liabilities for these claims in other long-term obligations as well as estimated recoveries under the indemnity agreement and an estimate of future recoveries under insurance in other assets on our consolidated balance sheets. As of December 31, 2012 and 2011, other noncurrent assets included $247 and $511, respectively, for insurance for third-party products liability claims and other long-term obligations included $1.3 million and $1.5 million, respectively, in third-party products claims liability. Based on decreases in the actual claims filed during the periods along with decreases in the estimated future product liability claims and their related costs, as well as the aforementioned settlement, we recorded pre-tax adjustments to selling, general and administrative expenses related to silica claims (including a $3.4 million gain in 2012, a $2.6 million gain in 2011, and a $762 loss in 2010). |
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- Definition
The entire disclosure for commitments and contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Income Taxes
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Dec. 31, 2012
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| Income Taxes | NOTE P—INCOME TAXES The (expense) benefit for income taxes consisted of the following for the years ended December 31, 2012, 2011 and 2010.
Deferred tax assets and liabilities are recognized for the estimated future tax effects, based on enacted tax laws, of temporary differences between the values of assets and liabilities recorded for financial reporting and for tax purposes and of net operating loss and other carry forwards.
The tax effects of the types of temporary differences and carry forwards that gave rise to deferred tax assets and liabilities at December 31, 2012 and 2011 consisted of the following:
At December 31, 2012 and 2011, we had federal net operating loss carry forwards of $0 and $59.9 million, respectively. In addition, we have an alternative minimum tax credit carry forward at December 31, 2012 and 2011 of approximately $25.9 million and $11.9 million, respectively. The credit carry forward may be carried forward indefinitely to offset any excess of regular tax liability over alternative minimum tax liability subject to certain limitations. Ultimately, the realization of deferred tax assets is dependent upon generation of future taxable income during those periods in which temporary differences become deductible and/or credits can be utilized. To this end, management considers the level of historical taxable income, the scheduled reversal of deferred tax liabilities, tax-planning strategies and projected future taxable income. Based on these considerations, and the carry-forward availability of a portion of the deferred tax assets, management believes it is more likely than not that we will realize the benefit of the deferred tax assets. At the end of each reporting period as presented, there were no material amounts of interest and penalties recognized in the statement of operations or balance sheets. We have no material unrecognized tax benefits or any known material tax contingencies at December 31, 2012 or December 31, 2011 and does not expect this to change significantly within the next twelve months. Tax returns filed with the IRS for the years 2009 through 2011 along with tax returns filed with numerous state entities remain subject to examination. The effective income tax rate on pretax earnings differed from the U.S. federal statutory rate for the years ended December 31, 2012, 2011 and 2010 for the following reasons:
The largest permanent item in computing both our effective tax rate and taxable income is the deduction allowed for statutory depletion. The deduction for statutory depletion does not necessarily change proportionately to changes in income before income taxes. |
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- Definition
The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Pension and Post-Retirement Benefits
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Dec. 31, 2012
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| Pension and Post-Retirement Benefits | NOTE Q—PENSION AND POST-RETIREMENT BENEFITS We maintain a single-employer noncontributory defined benefit pension plan covering certain employees. There have been no new entrants to the plan since May 2009 when the plan was frozen to all new employees. The plan provides benefits based on each covered employee’s years of qualifying service. Our funding policy is to contribute amounts within the range of the minimum required and maximum deductible contributions for the plan consistent with a goal of appropriate minimization of the unfunded projected benefit obligation. The pension plan uses a benefit level per year of service for covered hourly employees and a final average pay method for covered salaried employees. The plan uses the projected unit credit cost method to determine the actuarial valuation. We employ a total rate of return investment approach whereby a mix of equities and fixed income investments are used to maximize the long-term return of plan assets for a prudent level of risk. Risk tolerance is established through careful consideration of plan liabilities, plan funded status, and corporate financial condition. The investment portfolio contains a diversified blend of equity and fixed-income investments. Furthermore, equity investments are diversified across U.S. and non-U.S. stocks, as well as growth, value and small and large capitalizations. Investment risk is measured and monitored on an ongoing basis through quarterly investment portfolio reviews, annual liability measurements, and periodic asset/liability studies. We employ a building block approach in determining the long-term rate of return for plan assets. Historical markets are studied and long-term historical relationships between equities and fixed-income are preserved consistent with the widely accepted capital market principle that assets with higher volatility generate a greater return over the long run. Current market factors such as inflation and interest rates are evaluated before long-term capital market assumptions are determined. The long-term portfolio return is established via a building block approach with proper consideration of diversification and rebalancing. Peer data and historical returns are reviewed to check for reasonability and appropriateness. In addition, we provide defined benefit post-retirement healthcare and life insurance benefits to some employees. Covered employees become eligible for these benefits at retirement after meeting minimum age and service requirements. The projected future cost of providing post-retirement benefits, such as healthcare and life insurance, is recognized as an expense as employees render services. We contribute to a Voluntary Employees’ Beneficiary Association trust that will be used to partially fund health care benefits for future retirees. Benefits are funded to the extent contributions are tax deductible, which under current legislation is limited. In general, retiree health benefits are paid as covered expenses are incurred. Net pension benefit cost consisted of the following for the years ended December 31, 2012, 2011 and 2010:
Net post-retirement cost consisted of the following for the years ended December 31, 2012, 2011 and 2010:
The changes in benefit obligations and plan assets, as well as the funded status of our pension and post-retirement plans at December 31, 2012 and 2011 were as follows:
The accumulated benefit obligation for the defined benefit pension plans, which excludes the assumption of future salary increases, totaled $107.0 million and $99.4 million at December 31, 2012 and 2011, respectively. The amendments in 2012 reflect plan changes including increases in the benefit multiplier for certain participants as well as the reduction of certain benefits to estimated highly compensated salary participants. The amendments in 2011 include increased monthly benefit levels for flat-benefit plans as well as a limit of 35 years of service for participants with benefits based on final average earnings. We also sponsor unfunded, nonqualified pension plans. The projected benefit obligation, accumulated benefit obligation and fair value of plan assets for these plans were $1.7 million, $1.7 million and $0 at December 31, 2012 and $1.6 million, $1.6 million and $0 million at December 31, 2011.
Future estimated annual benefit payments for pension and post-retirement benefit obligations as of December 31, 2012 are as follows:
Our best estimate of expected contributions to the pension and post-retirement medical benefit plans for the 2013 fiscal year are $2.3 million and $1.3 million, respectively. The amounts in accumulated other comprehensive income expected to be recognized as components of net periodic benefit cost during the 2013 fiscal year are as follows:
The total amounts in accumulated other comprehensive income related to net actuarial loss and prior service costs, net of tax, as of December 31, 2012 were $16.2 and $1.8 million, respectively. The following weighted-average assumptions were used to determine our obligations under the plans:
The discount rate reflects the expected long-term rates of return with maturities comparable to payments for the plan obligations utilizing Aon Hewitt’s AA Only Above Medium Curve, rounded down to the next 0.05%.
Assumed health care cost trend rates have a significant effect on the amounts reported for the health care plans. A one-percentage-point change in assumed health care cost trend rates would have the following effects:
The major investment categories and their relative percentage of the fair value of total plan assets as invested at December 31, 2012 and 2011 were as follows:
The fair values of the pension plan assets at December 31, 2012, by asset category, are as follows:
The fair values of the pension plan assets at December 31, 2011, by asset category, are as follows:
We contribute to three multiemployer defined benefit pension plans under the terms of collective-bargaining agreements for union-represented employees. A multiemployer plan is subject to collective bargaining for employees of two or more unrelated companies. These plans allow multiple employers to pool their pension resources and realize efficiencies associated with the daily administration of the plan. Multiemployer plans are generally governed by a board of trustees composed of management and labor representatives and are funded through employer contributions. However, in most cases, management is not directly represented. The risks of participating in multiemployer plans differ from single employer plans as follows: 1) assets contributed to a multiemployer plan by one employer may be used to provide benefits to employees of other participating employers, 2) if a participating employer stops contributing to the plan, the unfunded obligations of the plan may be borne by the remaining participating employers, and 3) if we cease to have an obligation to contribute to one or more of the multiemployer plans to which we contribute, we may be required to pay those plans an amount based on the underfunded status of the plan, referred to as a withdrawal liability. A summary of each multiemployer pension plan for which we participate is presented below:
Our contributions to individual multiemployer pension funds did not exceed 5% of the fund’s total contributions in any of the three years ended December 31, 2012. Additionally, our contributions to multiemployer postretirement benefit plans were immaterial for all periods presented in the accompanying consolidated financial statements. We also sponsor a defined contribution plan covering certain employees. We contribute to the plan in two ways. For certain employees not covered by the defined benefit plan, we make a contribution equal to 4% of their salary. We also contribute an employee match of 25 cents, based on financial performance, for each dollar contributed by an employee, up to 8% of their earnings. For certain employees, we make a profit sharing match up to 75 cents, based on financial performance, for each dollar contributed up to 8% of their earnings. Finally, for some employees, we make a catch-up match of 25 cents for each dollar of catch-up contributions. Contributions were $1.4 million, $1.0 million and $802 for the years ended December, 31, 2012, 2011 and 2010, respectively. |
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- Definition
The entire disclosure for pension and other postretirement benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Obligations Under Guarantees
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12 Months Ended |
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Dec. 31, 2012
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| Obligations Under Guarantees | NOTE R—OBLIGATIONS UNDER GUARANTEES We have indemnified St. Paul Travelers (“Travelers”) against any loss Travelers may incur in the event that holders of surety bonds, issued on behalf of us by Travelers, execute the bonds. As of December 31, 2012, Travelers had $4.7 million in bonds outstanding for us. The majority of these bonds ($4.6 million) relate to reclamation requirements issued by various governmental authorities. Reclamation bonds remain outstanding until the mining area is reclaimed and the authority issues a formal release. The remaining bonds relate to such indefinite purposes as licenses, permits, and tax collection.
We have indemnified Safeco Insurance Company of America (“Safeco”) against any loss Safeco may incur in the event that holders of surety bonds, issued on behalf of us by Safeco, execute the bonds. As of December 31, 2012, Safeco had $513 in bonds outstanding for us. These are all reclamation bonds. U.S. Silica is the contingent guarantor of Kanawha Rail Corporation’s (“KRC”) obligations as lessee of 199 covered hopper railroad cars, which are used by U.S. Silica to ship sand to its customers. KRC’s obligation as lessee includes paying monthly rent of $66 until June 30, 2013, maintaining the cars, paying for any cars damaged or destroyed, and indemnifying all other parties to the lease transaction against liabilities including any loss of certain tax benefits. By separate agreement between U.S. Silica and KRC, KRC may, upon the occurrence of certain events, assign the lease obligations to U.S. Silica, but none of these events have occurred. |
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- Definition
The entire disclosure for each guarantee obligation, or each group of similar guarantee obligations, including (a) the nature of the guarantee, including its term, how it arose, and the events or circumstances that would require the guarantor to perform under the guarantee; (b) the maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee; (c) the current carrying amount of the liability, if any, for the guarantor's obligations under the guarantee; and (d) the nature of any recourse provisions under the guarantee, and any assets held either as collateral or by third parties, and any relevant related party disclosure. Excludes disclosures about product warranties. No definition available.
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Related Party Transactions
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12 Months Ended |
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Dec. 31, 2012
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| Related Party Transactions | NOTE S—RELATED PARTY TRANSACTIONS Advisory Agreement In connection with the Golden Gate Capital Acquisition, we entered into an Advisory Agreement with Golden Gate Capital whereby Golden Gate Capital agreed to provide business and organizational strategy and financial and advisory services. Such services included support and assistance to management with respect to negotiating and analyzing acquisitions and divestitures, negotiating and analyzing financing alternatives, preparing financial projections, monitoring compliance with financing agreements, marketing functions and searching for and hiring management personnel. As compensation for these services, we agreed to pay Golden Gate Capital (1) an annual advisory fee in the aggregate amount equal to $1.25 million, payable quarterly in arrears, and (2) a transaction fee of 1.25% of the aggregate value of each transaction resulting in a change in control of GGC Holdings or its subsidiaries, along with each acquisition, divestiture, recapitalization and financing. In addition to the fees described above, we also reimbursed Golden Gate Capital for all out-of-pocket costs incurred by Golden Gate Capital in connection with its activities under the Advisory Agreement, and indemnified Golden Gate Capital from and against all losses, claims, damages and liabilities related to the performance of its duties under the Advisory Agreement. On February 6, 2012, we paid $8.0 million to Golden Gate Capital to terminate the advisory agreement previously entered into in connection with the Golden Gate Capital Acquisition. The $8.0 million termination fee was accrued for at December 31, 2011 and no additional expense has been recognized during the year ended December 31, 2012. Advisory fees paid to Golden Gate Capital under the Advisory Agreement in 2011 and 2010 were $1.3 million and $1.3 million, respectively. These expenses are included in other operating expenses and presented as advisory fees to parent within our income statements. Promissory Note On December 22, 2010, we entered into a $15.0 million promissory note with our former parent LLC, GGC USS Holdings, LLC. The note provided working capital for a new subsidiary and matures on December 22, 2015. The note bore interest at 10%. Outstanding principal and interest under the note are payable upon demand, but no later than the maturity date. Upon sole election by GGC Holdings, any unpaid interest may be paid in cash on each December 22 of each year until the maturity date. As of and for the year ended December 31, 2011 and 2010, interest on the note is recorded in interest expense in the Income Statements and any unpaid interest is included in accrued interest on the Balance Sheets. On January 31, 2012, simultaneously with the IPO, GGC Holdings contributed to us all of the stock of GGC RCS Holdings, Inc. and converted the $15.0 million promissory note, including $1.7 million of accrued interest, to equity. |
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- Definition
The entire disclosure for related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Segment Reporting
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Dec. 31, 2012
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| Segment Reporting | NOTE T—SEGMENT REPORTING Our business is organized into two reportable segments, Oil & Gas Proppants and Industrial & Specialty Products, based on end markets. The reportable segments are consistent with how management views the markets that we serve and the financial information reviewed by the chief operating decision maker. We manage our Oil & Gas Proppants and Industrial & Specialty Products businesses as components of an enterprise for which separate information is available and is evaluated regularly by the chief operating decision maker in deciding how to allocate resources and assess performance. An operating segment’s performance is primarily evaluated based on segment contribution margin, which excludes certain corporate costs not associated with the operations of the segment. These corporate costs are separately stated below and include costs that are related to functional areas such as operations management, corporate purchasing, accounting, treasury, information technology, legal and human resources. We believe that segment contribution margin, as defined above, is an appropriate measure for evaluating the operating performance of its segments. However, this measure should be considered in addition to, not a substitute for, or superior to, income from operations or other measures of financial performance prepared in accordance with generally accepted accounting principles. The other accounting policies of each of the two reporting segments are the same as those in the summary of significant accounting policies included in Note B. In the Oil & Gas Proppants segment, we serve the oil and gas recovery market providing fracturing sand, or “frac sand,” which is pumped down oil and natural gas wells to prop open rock fissures and increase the flow rate of natural gas and oil from the wells. The Industrial & Specialty Products segment consists of over 250 products and materials used in a variety of industries including, container glass, fiberglass, specialty glass, flat glass, building products, fillers and extenders, foundry products, chemicals, recreation products and filtration products.
The following table presents sales and segment contribution margin for the reporting segments and other operating results not allocated to the reported segments for the years ended December 31, 2012, 2011 and 2010:
Asset information, including capital expenditures and depreciation, depletion, and amortization, by segment is not included in reports used by management in its monitoring of performance and, therefore, is not reported by segment. Goodwill of $68.4 million has been allocated to these segments with $47.7 million assigned to Oil & Gas Proppants and $20.7 million to Industrial & Specialty Products. No customer exceeded 10% or more of net sales in any of the periods presented. |
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- Definition
The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Unaudited Supplementary Data
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Dec. 31, 2012
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| Unaudited Supplementary Data | NOTE U—UNAUDITED SUPPLEMENTARY DATA The following table sets forth our unaudited quarterly consolidated statements of operations for each of the last four quarters ended December 31, 2012 and 2011. This unaudited quarterly information has been prepared on the same basis as our annual audited financial statements and includes all adjustments, consisting only of normal recurring adjustments that are necessary to present fairly the financial information for the fiscal quarters presented.
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- Definition
Supplemental Consolidating Data [Text Block] No definition available.
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Subsequent Events
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12 Months Ended |
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Dec. 31, 2012
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| Subsequent Events | NOTE V—SUBSEQUENT EVENTS On February 21, 2013, we closed on the purchase of an existing silica sand processing facility from Quality Sand Products LLC (QSP) in Peru, Illinois for $7.9 million as a result of exercising our option under our toll processing agreement with QSP. As a condition of the sale, QSP will continue to operate the facility under the terms of a new management agreement. |
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- Definition
The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. No definition available.
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Summary of Significant Accounting Policies (Policies)
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Dec. 31, 2012
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| Basis of Presentation and Consolidation | Basis of Presentation and Consolidation The consolidated financial statements as of December 31, 2012 and 2011 and for the years ended December 31, 2012, 2011 and 2010 (the “Financial Statements”), present our financial position, results of operations, and cash flows. In our opinion, our Financial Statements reflect all normal and recurring adjustments necessary to present fairly our financial position as of December 31, 2012 and 2011, the results of our operations for the years ended December 31, 2012, 2011 and 2010, and our cash flows for the year ended December 31, 2012, 2011 and 2010. We have reclassified certain immaterial amounts in the prior years’ consolidated statement of cash flows within operating activities to conform to the current year presentation. These reclassifications had no effect on previously reported net cash flows from operations. In order to make this report easier to read, we refer throughout to (i) our Consolidated Balance Sheets as our “Balance Sheets,” (ii) our Consolidated Statements of Operations as our “Income Statements,” and (iii) our Consolidated Statements of Cash Flows as our “Cash Flows.” The Financial Statements include the accounts of Holdings and its direct and indirect wholly-owned subsidiaries and GGC RCS Holdings, Inc. (formed in 2010). In consideration of the contribution of GGC RCS Holdings, Inc. to us on January 31, 2012, we and our subsidiaries are presented on a consolidated basis with GGC RCS Holdings, Inc. as of and for the year ended December 31, 2012. As of December 31, 2011 and for the years ended December 31, 2011 and 2010, we and our subsidiaries are presented on a combined basis with GGC RCS Holdings, Inc. All significant intercompany balances and transactions have been eliminated in combination.
We follow FASB Accounting Standards Codification (“ASC”) guidance for identification and reporting of entities over which control is achieved through means other than voting rights. The guidance defines such entities as Variable Interest Entities (“VIEs”). As of December 31, 2012 and for the periods presented herein, we have identified no entities over which we maintain any level of control that would qualify for consolidation under ASC guidance |
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| Use of Estimates and Assumptions | Use of Estimates and Assumptions The Financial Statements have been prepared in accordance with United States generally accepted accounting principles (“GAAP”). The preparation of the Financial Statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the related disclosure of contingent assets and liabilities at the date of the Financial Statements and the reported amounts of revenues and expenses during the reporting period. The more significant areas requiring the use of management estimates and assumptions relate to mineral reserves that are the basis for future cash flow estimates utilized in impairment calculations and units-of-production amortization calculations; environmental, reclamation and closure obligations; estimates of recoverable minerals; estimates of fair value for certain reporting units and asset impairments (including impairments of goodwill and other long-lived assets); write-downs of inventory to net realizable value; equity-based compensation expense; post-employment, post-retirement and other employee benefit liabilities; valuation allowances for deferred tax assets; reserves for contingencies and litigation; and the fair value and accounting treatment of financial instruments including derivative instruments. We base our estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances. Accordingly, actual results may differ significantly from these estimates under different assumptions or conditions. |
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| Revenue Recognition | Revenue Recognition Revenue is recognized from a sale when persuasive evidence of an arrangement exists, the price is determinable, the product has been delivered or legal title has been transferred to the customer and collection of the sales price is reasonably assured. Amounts received from customers in advance of revenue recognition are deferred as liabilities. We derive our sales by mining and processing minerals that our customers purchase for various uses. Our sales are primarily a function of the price per ton realized and the volumes sold. In some instances, our sales also include a charge for transportation services it provides to our customers. Our transportation revenue fluctuates based on a number of factors, including the volume of product it transports under contract, service agreements with our customers, the mode of transportation utilized and the distance between our plants and customers. We primarily sell our products under short-term price agreements or at prevailing market rates. For a limited number of customers, we sell under long-term, competitively-bid supply agreements. For the year ended December 31, 2012, we had take-or-pay supply agreements with nine of our customers in the oil & gas proppants segment with initial terms expiring between 2012 and 2016. These agreements define, among other commitments, the volume of product that our customers must purchase, the volume of product that it must provide and the price that it will charge and that our customers will pay for each product. Prices under these agreements are generally fixed and subject to upward adjustment in response to certain cost increases. As a result, our realized prices may not grow at rates consistent with broader industry pricing. For example, during periods of rapid price growth, our realized prices may grow more slowly than those of competitors, and during periods of price decline, our realized prices may outperform industry averages.
We invoice the majority of our clients on a per shipment basis, although for some larger customers, we consolidate invoices weekly or monthly. Standard terms are net 30 days, although extended terms are offered in competitive situations. The amounts invoiced include the amount charged for the product, transportation costs (if paid by us) and costs for additional services as applicable, such as costs related to transload the product from railcars to trucks for delivery to the customer site. |
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| Cash and Cash Equivalents | Cash and Cash Equivalents Cash and cash equivalents consist of all highly liquid investments with a maturity of three months or less when purchased. Because of the short maturity of these investments, the carrying amounts approximate their fair value. Cash and cash equivalents are invested primarily in money market securities with high quality institutions. Accounts at each institution are insured by Federal Deposit Insurance Corporation. Cash balances at times may exceed federally-insured limits. We have not experienced any losses in such accounts and believe we are not exposed to any significant credit risk on cash. |
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| Accounts Receivable | Accounts Receivable The majority of our accounts receivable are due from companies in the glass, oil and natural gas drilling, building products, filler and extenders, foundries and other major industries. Credit is extended based on evaluation of a customer’s financial condition and, generally, collateral is not required. Accounts receivable are generally due within 30 days and are stated at amounts due from customers net of an allowance for doubtful accounts. Accounts outstanding longer than the payment terms are considered past due. We determine our allowance by considering a number of factors, including the length of time trade accounts receivable are past due, our previous loss history, the customer’s current ability to pay its obligation to us, and the condition of the general economy and the industry as a whole. We write-off accounts receivable when they are deemed uncollectible, and payments subsequently received on such receivables are credited to the allowance for doubtful accounts. Our five largest customers accounted for approximately 31%, 25% and 29% of sales in the years ended December 31, 2012, 2011 and 2010, respectively. No single individual customer accounted for more than 10% of sales in the years ended December 31, 2012, 2011 and 2010. Management believes it maintains adequate reserves for potential credit losses; ongoing credit evaluations are performed and collateral is generally not required. |
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| Inventories | Inventories Inventories represent silica and other industrial sand available for shipment. We value inventory at the lower of cost or market. Cost is determined using the first-in, first-out and average cost methods. |
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| Property, Plant and Mine Development | Property, Plant and Mine Development Property and equipment Property and equipment is recorded at cost and depreciated over their estimated useful lives. Interest incurred during construction of facilities is capitalized and depreciated over the life of the asset. Depreciable properties, mining properties, and mineral deposits acquired in connection with business acquisitions are recorded at fair market value as of the date of acquisition. Costs for normal repairs and maintenance that do not extend economic life or improve service potential are expensed as incurred. Costs of improvements that extend economic life or improve service potential are capitalized and depreciated over the estimated remaining useful life.
Depreciation is recorded using the straight-line method over the assets’ estimated useful life as follows: buildings (15 years); land improvements (10 years); machinery & equipment, including computer equipment and software (3-10 years); furniture & fixtures (8 years). Leasehold improvements are depreciated over the shorter of the asset life or lease term. Construction-in-progress is primarily comprised of machinery and equipment, which has not yet been placed in service. Gains on the sale of assets are included in income when the assets are disposed of provided there is more than reasonable certainty of the collectability of the sales price and any future activities required to be performed by us relating to the disposal of the assets are complete or insignificant. Upon retirement or disposal of assets, all costs and related accumulated depreciation or amortization are written-off. Depletion and amortization of mineral deposits are recorded as the minerals are extracted, based on units of production and engineering estimates of mineable reserves. The impact of revisions to reserve estimates is recognized on a prospective basis. We evaluate the carrying value of our property and equipment if impairment evaluation triggering events occur. If it is determined that the current net book value is in excess of the fair value, the excess of the net book value over the estimated fair value is recorded in our consolidated statements of operations as impairment loss. Fair value is generally estimated using valuation techniques that consider the discounted cash flows of the asset at rates deemed reasonable for the type of asset and prevailing market conditions, appraisals, including recent similar transactions in the market and if appropriate and available, current estimated net sales proceeds from pending offers. We will classify an asset as held for sale when we have committed to a plan to sell the asset, the sale of the asset is probable within one year, and actions to complete the sale are unlikely to change or that the sale will be withdrawn. Accordingly, we typically classify assets as held for sale when our Board of Directors has approved the sale, a binding agreement to purchase the property has been signed under which the buyer has committed a significant amount of nonrefundable cash and no significant financing contingencies exist which could prevent the transaction from being completed in a timely manner. If these criteria are met, we will record an impairment loss if the fair value, less cost to sell, is lower than the carrying amount of the asset and will cease recording depreciation. We will classify the loss, together with the related operating results, including related interest expense on any debt assumed by the buyer or that is required to be repaid as a result of the sale, as discontinued operations on our consolidated statement of operations, presuming that we will not have continuing involvement with the property or asset after the sale, and classify the asset and related liability as held for sale on our consolidated balance sheet. Gains on sales of assets are recognized at the time of sale or deferred and recognized as income in subsequent periods as conditions requiring deferral are satisfied or expire without further cost to us. Mine exploration and development Mine exploration and development costs include engineering and mineral studies, drilling and other related costs to delineate an ore body, and the removal of overburden to initially expose an ore body for production. Costs incurred before mineralization are classified as proven and probable reserves are expensed and classified as exploration or advanced projects, research and development expense. Capitalization of mine development project costs, that meet the definition of an asset, begins once mineralization is classified as proven and probable reserves. Drilling and related costs are capitalized for an ore body where proven and probable reserves exist and the activities are directed at obtaining additional information on the ore body or converting non-reserve mineralization to proven and probable reserves and the benefit is expected to be realized over a period beyond one year. All other drilling and related costs are expensed as incurred. Drilling costs incurred during the production phase for operational ore control are allocated to inventory costs and then included as a component of costs applicable to sales. The cost of removing overburden and waste materials to access the ore body at an open pit mine prior to the production phase are referred to as “pre-stripping costs.” Pre-stripping costs are capitalized during the development of an open pit mine. Where multiple open pits exist at a mining complex utilizing common processing facilities, pre-stripping costs are capitalized at each pit. The removal, production, and sale of de minimis saleable materials may occur during development and are recorded as other income, net of incremental mining and processing costs. The production phase of an open pit mine commences when saleable minerals, beyond a de minimis amount, are produced. Stripping costs incurred during the production phase of a mine are variable production costs that are included as a component of inventory to be recognized in costs applicable to sales in the same period as the revenue from the sale of inventory. Our definition of a mine and the mine’s production phase may differ from that of other companies in the mining industry resulting in incomparable allocations of stripping costs to deferred mine development and production costs. Other mining companies may expense pre-stripping costs associated with subsequent pits within a mining complex. Mine development costs are amortized using the units-of-production method based on estimated recoverable tons in proven and probable reserves. To the extent that these costs benefit an entire ore body, they are amortized over the estimated life of the ore body. Costs incurred to access specific ore blocks or areas that only provide benefit over the life of that area are amortized over the estimated life of that specific ore block or area. Mine reclamation costs We recognize the fair value of any liability for conditional asset retirement obligations, including environmental remediation liabilities when incurred, which is generally upon acquisition, construction or development and/or through the normal operation of the asset, if sufficient information exists to reasonably estimate the fair value of the liability. These obligations generally include the estimated net future costs of dismantling, restoring and reclaiming operating mines and related mine sites, in accordance with federal, state and local regulatory requirements. The liability is accreted over time through periodic charges to earnings. In addition, the asset retirement cost is capitalized as part of the asset’s carrying value and amortized over the life of the related asset. Reclamation costs are periodically adjusted to reflect changes in the estimated present value resulting from the passage of time and revisions to the estimates of either the timing or amount of the reclamation and abandonment costs. The reclamation obligation is based on when spending for an existing environmental disturbance will occur. If the asset retirement obligation is settled for other than the carrying amount of the liability, a gain or loss is recognized on settlement. We review, on an annual basis, unless otherwise deemed necessary, the reclamation obligation at each mine site in accordance with ASC guidance for accounting reclamation obligations. Future remediation costs for inactive mines are accrued based on management’s best estimate at the end of each period of the costs expected to be incurred at a site. Such cost estimates include, where applicable, ongoing care, maintenance and monitoring costs. Changes in estimates at inactive mines are reflected in earnings in the period an estimate is revised.
In connection with our annual review of our reclamation obligations in 2012, we have determined that some of our estimates required revision due to changes in cost estimates and settlement dates at numerous sites with the largest change being caused by favorable legislation at our Rockwood, MI site. These changes in estimates resulted in the reversal of $3.5 million of reclamation obligations in 2012. We reported a liability of $6.7 million and $9.5 million in other long-term obligations related to this obligation as of December 31, 2012 and 2011, respectively. Changes in the asset retirement obligation are as follows:
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| Goodwill and Other Intangible Assets and Related Impairment | Goodwill and Other Intangible Assets and Related Impairment Our intangible assets consist of goodwill, which is not being amortized; indefinite lived intangibles, which consist of certain trade names that are not subject to amortization; and customer relationships, which are being amortized on a straight-line basis over their useful life of 20 years. Goodwill represents the excess of purchase price over the fair value of net assets from the business acquisition in 2008. Goodwill and other intangible assets with indefinite lives are reviewed for impairment annually as of October 31 or more frequently whenever events or circumstances change that would more likely than not reduce the fair value of those assets. Prior to conducting a formal impairment test, we assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that is more likely than not (more than 50%) that the fair value of a reporting unit is less than its carrying amount. Such qualitative factors may include the following: macroeconomic conditions; industry and market considerations; cost factors; overall financial performance; and other relevant entity-specific events. If the qualitative assessment determines that an impairment is more likely than not, then the impairment test for goodwill, or other intangible assets with indefinite lives, requires a comparison of the fair value with the carrying amount, including goodwill. If this comparison reflects impairment, then the loss would be measured as the excess of recorded goodwill, or other intangible assets with indefinite lives, over its implied fair value. Implied fair value is the excess of our fair value over the fair value of all recognized and unrecognized assets and liabilities. The evaluation of goodwill, or other intangible assets with indefinite lives, for possible impairment includes estimating our fair value using discounted cash flows and multiples of cash earnings valuation techniques, plus valuation comparisons to similar businesses. These valuations require us to make estimates and assumptions regarding future operating results, cash flows, changes in working capital and capital expenditures, selling prices, profitability, and the cost of capital. Although we believe that the estimates and assumptions used were reasonable, actual results could differ from those estimates and assumptions. As of December 31, 2012 our qualitative assessment did not indicate that it was more likely than not that an impairment had occurred.
As of December 31, 2012, the gross carrying amount of the customer relationships intangible asset was $8.2 million with accumulated amortization of $1.7 million. We review all finite-lived intangible assets for impairment when circumstances indicate that their carrying amounts may not be recoverable. We evaluate the carrying value of all finite-lived intangible assets for impairment by comparing the expected undiscounted future cash flows of the asset to the net book value of the asset. If the expected undiscounted future cash flows are less than the net book value of the assets, the excess of the net book value over the estimated fair value is recorded in our consolidated statements of operations as impairment loss. Fair value is generally estimated using valuation techniques that consider the discounted cash flows of the asset at rates deemed reasonable for the type of asset and prevailing market conditions, replacement cost, appraisals, including recent similar transactions in the market and if appropriate, current estimated net sales proceeds from pending offers. As of December 31, 2012, the remaining useful life of our customer relationships was 15.9 years. The estimated annual amortization in each of the next five years is $411. |
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| Debt Issuance Costs | Debt Issuance Costs Debt issuance costs consist of loan origination costs, which are being amortized using the effective interest method over the term of the related debt principal. Amortization included in interest expense was $515, $265 and $447 for the years ended December 31, 2012, 2011 and 2010, respectively. |
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| Transportation Revenue and Expense | Transportation Revenue and Expense Transportation revenue is the revenue we receive from charging our customers to deliver product to their locations. Revenue is recognized from a sale when persuasive evidence of an arrangement exists, the price is determinable, the product has been delivered or legal title has been transferred to the customer and collection of the sales price is reasonably assured. Transportation expense is the cost we pay to ship product from its production facilities to customer facilities. |
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| Environmental Costs | Environmental Costs Environmental costs, other than qualifying capital expenditures, are accrued at the time the exposure becomes known and costs can be reasonably estimated. Costs are accrued based upon management’s estimates of all direct costs, after taking into account expected reimbursement by third parties (primarily the sellers of acquired businesses), and are reviewed by outside consultants. Environmental costs are charged to expense unless a settlement with an indemnifying party has been reached. |
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| Self-Insurance | Self-Insurance We are self-insured for various levels of employee health insurance coverage, workers’ compensation and third party product liability claims alleging occupational disease. We purchase insurance coverage for claim amounts which exceed our self-insured retentions. Depending on the type of insurance, these self-insured retentions range from $100,000 to $500,000 per occurrence. Our insurance reserves are accrued based on estimates of the ultimate cost of claims expected to occur during the covered period. These estimates are prepared with the assistance of outside actuaries and consultants. Our actuaries periodically review the volume and amount of claims activity, and based upon their findings, we adjust our insurance reserves accordingly. The ultimate cost of claims for a covered period may differ from our original estimates.
The current portion of our self-insurance reserves is included in accrued liabilities and the non-current portion is included in other long-term obligations in our consolidated balance sheets. Our self-insurance reserves totaled $4.0 million and $3.6 million at December 31, 2012 and 2011, respectively. Of these amounts, $1.3 million and $1.2 million, respectively, were classified as current. |
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| Equity-based Compensation | Equity-based Compensation We recognize the cost of employee services rendered in exchange for awards of equity instruments, such as stock options and restricted stock, based on the fair value of those awards at the date of the grant. Compensation expense for equity units is recognized, on a straight-line basis, net of forfeitures, over the requisite service period for the fair value of the awards that actually vest. |
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| Income Taxes | Income Taxes Deferred taxes are provided on the liability method whereby deferred tax assets are recognized for deductible temporary differences and operating loss and tax credit carry forwards and deferred tax liabilities are recognized for taxable temporary differences. This approach requires recognition of deferred tax liabilities and assets for the expected future tax consequences of events that have been included in the financial statements or tax returns. Under this method, deferred tax liabilities and assets are determined based upon the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the expenses are expected to reverse. Valuation allowances are provided if, based on the weight of available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. We recognize a tax benefit associated with an uncertain tax position when, in management’s judgment, it is more likely than not that the position will be sustained upon examination by a taxing authority. For a tax position that meets the more-likely-than-not recognition threshold, we initially and subsequently measure the tax benefit as the largest amount that it judges to have a greater than 50% likelihood of being realized upon ultimate settlement with a taxing authority. The liability associated with unrecognized tax benefits is adjusted periodically due to changing circumstances, such as the progress of tax audits, case law developments and new or emerging legislation. Such adjustments are recognized entirely in the period in which they are identified. The effective tax rate includes the net impact of changes in the liability for unrecognized tax benefits and subsequent adjustments as considered appropriate by management. The largest permanent item in computing both our effective tax rate and taxable income is the deduction allowed for statutory depletion. The impact of statutory depletion on the effective tax rate is presented in Note P to these financial statements. The deduction for statutory depletion does not necessarily change proportionately to changes in income before income taxes. |
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| Net Income per Common Share | Net Income per Common Share Basic and diluted income per share is presented for net income. Basic income per share is computed by dividing income available to common stockholders by the weighted-average number of outstanding common shares for the period. Diluted income per share reflects the potential dilution that could occur if securities or other contracts that may require the issuance of common shares in the future were converted. Diluted income per share is computed by increasing the weighted-average number of outstanding common shares to include the additional common shares that would be outstanding after conversion and adjusting net income for changes that would result from the conversion. Only those securities or other contracts that result in a reduction in earnings per share are included in the calculation. |
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| Comprehensive Income | Comprehensive Income In addition to net income, comprehensive income (loss) includes all changes in equity during a period, such as adjustments to minimum pension liabilities and the effective portion of changes in fair value of derivative instruments that qualify as cash flow hedges. |
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| Financial Instruments | Financial Instruments We currently use interest rate hedge agreements and have historically utilized natural gas hedge agreements to manage interest and energy costs and the risk associated with changing interest rates and natural gas prices. Amounts to be paid or received under these hedge agreements are accrued as interest rates or natural gas prices change and are recognized over the life of the hedge agreements as an adjustment to interest expense or, in the case of natural gas, cost of goods sold. Our policy is to not hold or issue derivative financial instruments for trading or speculative purposes. When entered into, these financial instruments are designated as hedges of underlying exposures, associated with our long-term debt and energy costs, and are monitored to determine if they remain effective hedges. Gains and losses on derivatives designated as cash flow hedges are recorded in other comprehensive income net of tax and reclassified to earnings in a manner that matches the timing of the earnings impact of the hedged transactions. The ineffective portion of all hedges, if any, is recognized currently in income. Additional disclosures for derivative instruments are presented in Note L to these financial statements. |
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| Recently Adopted Accounting Pronouncements | Recently Adopted Accounting Pronouncements In May 2011, the Financial Accounting Standards Board (“FASB”) issued changes to conform existing guidance regarding fair value measurement and disclosure between GAAP and International Financial Reporting Standards. These changes both clarify the FASB’s intent about the application of existing fair value measurement and disclosure requirements and amend certain principles or requirements for measuring fair value or for disclosing information about fair value measurements. The clarifying changes relate to the application of the highest and best use and valuation premise concepts, measuring the fair value of an instrument classified in a reporting entity’s stockholders’ equity, and disclosure of quantitative information about unobservable inputs used for Level 3 fair value measurements. The amendments relate to measuring the fair value of financial instruments that are managed within a portfolio; application of premiums and discounts in a fair value measurement; and additional disclosures concerning the valuation processes used and sensitivity of the fair value measurement to changes in unobservable inputs for those items categorized as Level 3, a reporting entity’s use of a nonfinancial asset in a way that differs from the asset’s highest and best use, and the categorization by level in the fair value hierarchy for items required to be measured at fair value for disclosure purposes only. We adopted this guidance, effective January 1, 2012, with no material impact on our Financial Statements. In June 2011, the FASB issued changes to the presentation of comprehensive income. These changes give an entity the option to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements; the option to present components of other comprehensive income as part of the statement of changes in stockholders’ equity was eliminated. The items that must be reported in other comprehensive income or when an item of other comprehensive income must be reclassified to net income were not changed. Additionally, no changes were made to the calculation and presentation of earnings per share. We adopted this guidance, effective January 1, 2012, with no material impact on our Financial Statements. In September 2011, the FASB issued changes to the testing of goodwill for impairment. These changes provide an entity the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not (more than 50%) that the fair value of a reporting unit is less than its carrying amount. Such qualitative factors may include the following: macroeconomic conditions; industry and market considerations; cost factors; overall financial performance; and other relevant entity-specific events. If an entity elects to perform a qualitative assessment and determines that an impairment is more likely than not, the entity is then required to perform the existing two-step quantitative impairment test, otherwise no further analysis is required. An entity also may elect not to perform the qualitative assessment and, instead, go directly to the two-step quantitative impairment test. These changes become effective for us for any goodwill impairment test performed on January 1, 2012 or later, although early adoption is permitted. We adopted this guidance, effective January 1, 2012 with no material impact on our Financial Statements. In September 2011, the FASB issued changes to increase the level of disclosure about an employer’s participation in a multiemployer pension plan. These changes require that employers provide additional separate quantitative and qualitative disclosures for multiemployer pension plans and multiemployer other post-retirement benefit plans, including the significant multiemployer plan(s) in which an employer participates, the level at which an employer participates in the plan(s), the financial health of the plan(s) and the nature of the employer commitments to the plan(s). We adopted this guidance, effective January 1, 2012 with no material impact on our Financial Statements. In July 2012, the FASB issued changes to the testing of indefinite-lived intangible assets for impairment. These changes provide an entity the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not (more than 50%) that the fair value of an indefinite-lived intangible asset is less than its carrying amount. In accordance with the amendment, an entity has the option first to assess qualitative factors to determine whether the existence of events and circumstances indicates that it is more likely than not that the indefinite-lived intangible asset is impaired. In conducting a qualitative assessment, an entity should consider the extent to which relevant events and circumstances, both individually and in the aggregate, could have affected the significant inputs used to determine the fair value of the indefinite-lived intangible asset since the last assessment. If, after assessing the totality of events and circumstances, an entity concludes that it is not more likely than not that the indefinite-lived intangible asset is impaired, then the entity is not required to take further action. However, if an entity concludes otherwise, then it is required to determine the fair value of the indefinite-lived intangible asset and perform the quantitative impairment test by comparing the fair value with the carrying amount. An entity also has the option to bypass the qualitative assessment for any indefinite-lived intangible asset in any period and proceed directly to performing the quantitative impairment test. An entity will be able to resume performing the qualitative assessment in any subsequent period. These changes become effective for us for any impairment test on our indefinite-lived intangible assets performed on January 1, 2013 or later, although early adoption is permitted. We adopted this guidance, effective for the 2012 reporting period with no material impact on our Financial Statements. |
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Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for major classes of inventories, bases of stating inventories (for example, lower of cost or market), methods by which amounts are added and removed from inventory classes (for example, FIFO, LIFO, or average cost), loss recognition on impairment of inventories, and situations in which inventories are stated above cost. If inventory is carried at cost, this disclosure includes the nature of the cost elements included in inventory. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for property, plant and equipment which may include the basis of such assets, depreciation methods used and estimated useful lives, the entity's capitalization policy, including its accounting treatment for costs incurred for repairs and maintenance activities, whether such asset balances include capitalized interest and the method by which such is calculated, how disposals of such assets are accounted for and how impairment of such assets is assessed and recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for trade and other accounts receivable, and finance, loan and lease receivables, including those classified as held for investment and held for sale. This disclosure may include (1) the basis at which such receivables are carried in the entity's statements of financial position (2) how the level of the valuation allowance for receivables is determined (3) when impairments, charge-offs or recoveries are recognized for such receivables (4) the treatment of origination fees and costs, including the amortization method for net deferred fees or costs (5) the treatment of any premiums or discounts or unearned income (6) the entity's income recognition policies for such receivables, including those that are impaired, past due or placed on nonaccrual status and (7) the treatment of foreclosures or repossessions (8) the nature and amount of any guarantees to repurchase receivables. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Disclosure of accounting policy for revenue recognition. If the entity has different policies for different types of revenue transactions, the policy for each material type of transaction is generally disclosed. If a sales transaction has multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets) the disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Disclosure of accounting policy for the classification of shipping and handling costs, including whether the costs are included in cost of sales or included in other income statement accounts. If shipping and handling fees are significant and are not included in cost of sales, disclosure includes both the amounts of such costs and the line item on the income statement which includes such costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
|
- Definition
Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Summary of Significant Accounting Policies (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2012
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| Schedule of Changes in Asset Retirement Obligation | Changes in the asset retirement obligation are as follows:
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| X | ||||||||||
|
- Definition
Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Earnings Per Share (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2012
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| Schedule of Basic and Diluted Earnings Per Share | Basic income per common share is computed by dividing income available to common stockholders by the weighted average number of common shares outstanding for the period. Diluted income per common share is computed similarly to basic income per common share except that the weighted average number of common shares outstanding is increased to include the number of additional common shares that would have been outstanding if the potentially dilutive common shares had been issued. In accordance with the applicable accounting guidance for calculating earnings per share, we did not include our calculation of diluted earnings per share for the applicable periods, stock options where the exercise prices were greater than the average market prices.
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| X | ||||||||||
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- Definition
Tabular disclosure of an entity's basic and diluted earnings per share calculations. No definition available.
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|
Accounts Receivable (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2012
|
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| Schedule of Accounts Receivable | At December 31, 2012 and 2011, accounts receivable consisted of the following:
|
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| Schedule of Allowance for Doubtful Accounts | Changes in our allowance for doubtful accounts are as follows:
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| X | ||||||||||
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- Definition
Components of allowance for doubtful accounts . No definition available.
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| X | ||||||||||
|
- Definition
Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Inventories (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2012
|
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| Schedule of Inventories | At December 31, 2012 and 2011, inventories consisted of the following:
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| X | ||||||||||
|
- Definition
Inventories. No definition available.
|
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Property, Plant and Mine Development (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2012
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| Schedule of Property, Plant and Mine Development | At December 31, 2012 and 2011, property, plant and mine development consisted of the following:
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| X | ||||||||||
|
- Definition
Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Accrued Liabilities (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2012
|
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| Schedule of Accrued Liabilities | At December 31, 2012 and 2011, accrued liabilities consisted of the following:
|
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| X | ||||||||||
|
- Definition
Tabular disclosure of the components of accrued liabilities. No definition available.
|
|
Debt (Tables)
|
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2012
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| Schedule of Debt | At December 31, 2012 and 2011, debt consisted of the following:
|
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| Schedule of Contractual Maturities of Long-Term Debt | At December 31, 2012, contractual maturities of long-term debt are as follows:
|
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| X | ||||||||||
|
- Definition
Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. No definition available.
|
| X | ||||||||||
|
- Definition
Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Fair Value Accounting (Tables)
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12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2012
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| Schedule of Measure at Fair Value on Recurring Basis | In accordance with the fair value hierarchy, the following table presents the fair value as of December 31, 2012, of those derivative assets that we must measure at fair value on a recurring basis:
In accordance with the fair value hierarchy, the following table presents the fair value as of December 31, 2011, of those derivative assets that we must measure at fair value on a recurring basis:
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| X | ||||||||||
|
- Definition
Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Derivative Instruments (Tables)
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12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2012
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| Estimated Fair Values of Derivative Instruments | The following table summarizes the fair value of our derivative instruments. See Note K for additional disclosures regarding the estimated fair values of our derivative instruments at December 31, 2012, and 2011.
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| Effect of Derivatives Instruments on Combined Statements of Operations and Comprehensive Income | The following table summarizes the effect of derivatives instruments on our income statements and our condensed consolidated statements of comprehensive income for the years ended December 31, 2012, 2011 and 2010.
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| X | ||||||||||
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- Definition
Tabular disclosure of derivative assets at fair value. No definition available.
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| X | ||||||||||
|
- Definition
Tabular disclosure of the location and amount of gains and losses reported in the statement of financial performance, or when applicable, the statement of financial position. For example, (a) gains and losses recognized in the income statement on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges and (b) gains and losses initially recognized in other comprehensive income on derivative instruments designated and qualifying as cash flow hedges. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Equity-Based Compensation (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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|
Dec. 31, 2012
|
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| Summary of Activity with Respect to Equity Incentive Units | Our activity with respect to Class C equity incentive units for 2012, 2011, and 2010 was as follows:
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| Summary of Activity with Respect to Stock Options | Our activity with respect to stock options for the year ended December 31, 2012 and 2011 was as follows:
|
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|
Restricted stock [Member]
|
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| Summary of Activity with Respect to Stock Options | As of December 31, 2012, there was $1.0 million of total unrecognized compensation expense related to these restricted stock shares, which is expected to be recognized over a period of 3.35 years.
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Equity securities [Member]
|
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| Assumptions Used in Black-Scholes Pricing Model | The following table illustrates the assumptions used in the Black-Scholes pricing model for options granted during the respective fiscal year:
|
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Equity units [Member]
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| Assumptions Used in Black-Scholes Pricing Model | The following table illustrates the assumptions used in the Black-Scholes pricing model:
|
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| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions And Methodology Table [Text Block] No definition available.
|
| X | ||||||||||
|
- Definition
Tabular disclosure of the changes in other outstanding share-based compensation awards other than stock options or nonvested awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Leases (Tables)
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Dec. 31, 2012
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| Future Minimum Annual Commitments under Operating Leases | Future minimum annual commitments under such operating leases at December 31, 2012 are as follows:
|
| X | ||||||||||
|
- Definition
Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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|
Income Taxes (Tables)
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12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2012
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| Summary of Income Tax (Expense) Benefit | The (expense) benefit for income taxes consisted of the following for the years ended December 31, 2012, 2011 and 2010.
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| Summary of Tax Effects on Deferred Tax Assets and Liabilities | The tax effects of the types of temporary differences and carry forwards that gave rise to deferred tax assets and liabilities at December 31, 2012 and 2011 consisted of the following:
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| Summary of Effective Income Tax Rate on Pretax Earnings | The effective income tax rate on pretax earnings differed from the U.S. federal statutory rate for the years ended December 31, 2012, 2011 and 2010 for the following reasons:
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- Definition
Tax Effect Of Significant Portions Of Deferred Tax Assets And Deferred Tax Liabilities Table [Text Block] No definition available.
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- Definition
Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Pension and Post-Retirement Benefits (Tables)
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12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2012
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| Summarizes Information about Pension and Post-Retirement Benefit Plans | Net pension benefit cost consisted of the following for the years ended December 31, 2012, 2011 and 2010:
Net post-retirement cost consisted of the following for the years ended December 31, 2012, 2011 and 2010:
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| Changes in Benefit Obligations and Plan Assets | The changes in benefit obligations and plan assets, as well as the funded status of our pension and post-retirement plans at December 31, 2012 and 2011 were as follows:
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| Estimated Future Pension and Post-Retirement Benefit Payments | Future estimated annual benefit payments for pension and post-retirement benefit obligations as of December 31, 2012 are as follows:
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| Amounts in Accumulated Other Comprehensive Income Expected to be Recongnized as Components of Net Periodic Benefit Cost | The amounts in accumulated other comprehensive income expected to be recognized as components of net periodic benefit cost during the 2013 fiscal year are as follows:
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| Company's Obligations Determined under Weighted-Average Assumptions | The following weighted-average assumptions were used to determine our obligations under the plans:
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| Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates | A one-percentage-point change in assumed health care cost trend rates would have the following effects:
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| Fair Value of Pension Plan Assets | The major investment categories and their relative percentage of the fair value of total plan assets as invested at December 31, 2012 and 2011 were as follows:
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| Fair Value of Pension Plan Assets, by Asset Category | The fair values of the pension plan assets at December 31, 2012, by asset category, are as follows:
The fair values of the pension plan assets at December 31, 2011, by asset category, are as follows:
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| Summary of Multiemployer Pension Plan | A summary of each multiemployer pension plan for which we participate is presented below:
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Defined Benefit Plan Assets For Plan Benefits Table [Text Block] No definition available.
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- Definition
Defined Benefit Plan Weighted Average Assumptions Used In Calculating Benefit Obligations Table [Text Block] No definition available.
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Fair Value Of Pension Plan Assets Table [Text Block] No definition available.
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Summary Of Fair Value Of Pension Plan Assets Table [Text Block] No definition available.
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- Definition
Tabular disclosure of the effect of a one-percentage-point increase and the effect of a one-percentage-point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs and the accumulated postretirement benefit obligation for health care benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the quantitative and qualitative information related to multiemployer plans in which the employer participates. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Tabular disclosure of the amounts related to pension plans and/or other employee benefit plans in accumulated other comprehensive income or loss that have not yet been recognized as components of net periodic benefit cost, such as the net gain (loss), net prior service cost or credit, and net transition asset or obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Segment Reporting (Tables)
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Dec. 31, 2012
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| Presentation of Sales and Segment Contribution Margin for Reporting Segments and Other Operating Results | The following table presents sales and segment contribution margin for the reporting segments and other operating results not allocated to the reported segments for the years ended December 31, 2012, 2011 and 2010:
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- Definition
Tabular disclosure of all significant reconciling items in the reconciliation of total revenues from reportable segments to the entity's consolidated revenues. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Unaudited Supplementary Data (Tables)
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Dec. 31, 2012
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| Unaudited Quarterly Information | This unaudited quarterly information has been prepared on the same basis as our annual audited financial statements and includes all adjustments, consisting only of normal recurring adjustments that are necessary to present fairly the financial information for the fiscal quarters presented.
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||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| X | ||||||||||
|
- Definition
Supplemental Quarterly Financial Data Table [Text Block] No definition available.
|
|
Organization - Additional Information (Detail) (USD $)
In Millions, except Share data, unless otherwise specified |
1 Months Ended | 12 Months Ended | |||||
|---|---|---|---|---|---|---|---|
|
Dec. 31, 2012
|
Feb. 06, 2012
|
Dec. 31, 2012
|
Jan. 31, 2012
|
Dec. 31, 2011
|
Jul. 08, 2011
|
Nov. 25, 2008
|
|
| Organization And Nature Of Business [Line Items] | |||||||
| Common stock authorized | 500,000,000 | 500,000,000 | 2,941,176 | 100,000,000 | |||
| Common stock issued | 52,920,704 | 2,941,176 | 52,920,704 | 2,941,176 | 50,000,000 | 1,000 | |
| Stockholders common stock issued | 8,823,529 | 8,823,529 | |||||
| Common stock, offering price | $ 17.00 | $ 17.00 | |||||
| Aggregate offering price at common stock | $ 50.0 | $ 50.0 | |||||
| Underwriting discounts and commissions | 3.5 | ||||||
| Offering expenses | 5.7 | ||||||
| Net proceeds | 40.8 | ||||||
| Aggregate offering price at stockholders common stock | 150.0 | ||||||
| Accrued interest | 1.7 | 1.7 | |||||
|
Convertible note payable [Member]
|
|||||||
| Organization And Nature Of Business [Line Items] | |||||||
| GGC RCS Holdings, Inc.-Note payable converted to Equity contribution | $ 15.0 | ||||||
| X | ||||||||||
|
- Definition
Aggregate offering price at common stock. No definition available.
|
| X | ||||||||||
|
- Definition
Offering expenses. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Sale of stock number of share issued in transaction. No definition available.
|
| X | ||||||||||
|
- Definition
Underwriting discounts and commissions. No definition available.
|
| X | ||||||||||
|
- Definition
The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Increase for accrued, but unpaid interest on the debt instrument for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of consideration received by subsidiary or equity investee in exchange for shares of stock issued or sold. Includes amount of cash received, fair value of noncash assets received, and fair value of liabilities assumed by the investor. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Accounts Receivable Due Within Period No definition available.
|
| X | ||||||||||
|
- Definition
Aggregate Self Insured Exposure Per Occurrence No definition available.
|
| X | ||||||||||
|
- Definition
Component Of Interest Expense Amortized No definition available.
|
| X | ||||||||||
|
- Definition
Date Of Agreement Period Expire No definition available.
|
| X | ||||||||||
|
- Definition
Maximum percentage of sales accounted by an individual customer. No definition available.
|
| X | ||||||||||
|
- Definition
Minimum Percentage Of Recorded Tax Benefits From Ultimate Settlement With Tax Authorities No definition available.
|
| X | ||||||||||
|
- Definition
Number Of Customers No definition available.
|
| X | ||||||||||
|
- Definition
Number of customers accounted for sales percentage. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Percentage of accounts receivable to which customers accounted for. No definition available.
|
| X | ||||||||||
|
- Definition
Percent Of Reporting Unit Fair Value Is Less Than Carrying Value No definition available.
|
| X | ||||||||||
|
- Definition
Preliminary Remaining Useful Life No definition available.
|
| X | ||||||||||
|
- Definition
Reversal Of Reclamation Obligations No definition available.
|
| X | ||||||||||
|
- Definition
Term Of Invoice Of Distributor No definition available.
|
| X | ||||||||||
|
- Definition
Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate carrying amount, as of the balance sheet date, of noncurrent obligations not separately disclosed in the balance sheet. Noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. No definition available.
|
| X | ||||||||||
|
- Definition
Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property that are expected to be paid within one year (or the normal operating cycle, if longer). No definition available.
|
|
Summary of Significant Accounting Policies - Schedule of Changes in Asset Retirement Obligation (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Asset Retirement Obligation Liabilities [Line Items] | ||
| Beginning balance | $ 9,504 | $ 6,401 |
| Payments | ||
| Accretion | 658 | 537 |
| Revisions of prior estimates | (3,503) | 2,566 |
| Ending balance | $ 6,659 | $ 9,504 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the Increase or Decrease in the amount of the asset retirement obligation during the current period for changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Earnings Per Share - Additional Information (Detail) (USD $)
|
12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Feb. 06, 2012
|
Jan. 31, 2012
|
Jul. 08, 2011
|
Nov. 25, 2008
|
|
| Earnings Per Share [Line Items] | |||||||
| Common stock issued | 52,920,704 | 50,000,000 | 2,941,176 | 2,941,176 | 1,000 | ||
| Aggregate purchase price | $ 10.00 | ||||||
| Common stock authorized | 500,000,000 | 2,941,176 | 100,000,000 | ||||
| Description of split of company common stock | The amended and restated certificate of incorporation also created a 50,000-for-one split of the Company's common stock | ||||||
| Anti-dilutive outstanding options | 0 | 0 | 0 | ||||
| X | ||||||||||
|
- Definition
Common Stock Issue Price Per Share No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Description of the stock split arrangement. Also provide the retroactive effect given by a stock split that occurs after the balance date but before the release of financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Earnings Per Share - Schedule of Basic and Diluted Earnings Per Share (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2012
|
Sep. 30, 2012
|
Jun. 30, 2012
|
Mar. 31, 2012
|
Dec. 31, 2011
|
Sep. 30, 2011
|
Jun. 30, 2011
|
Mar. 31, 2011
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Earnings Per Share [Line Items] | |||||||||||
| Net income | $ 79,154 | $ 30,253 | $ 11,392 | ||||||||
| Net income | $ 21,794 | $ 18,796 | $ 19,451 | $ 19,113 | $ 10,045 | $ 10,342 | $ 6,356 | $ 3,510 | $ 79,154 | $ 30,253 | $ 11,392 |
| Weighted average common shares (thousands): | |||||||||||
| Basic | 52,891,000 | 52,873,000 | 52,440,000 | 51,939,000 | 50,000,000 | 50,000,000 | 50,000,000 | 50,000,000 | 52,662 | 50,000 | 50,000 |
| Effect of employee stock based awards | 49 | 6 | |||||||||
| Diluted | 52,963,000 | 52,887,000 | 52,505,000 | 52,031,000 | 50,006,000 | 50,031,000 | 50,000,000 | 50,000,000 | 52,711 | 50,006 | 50,000 |
| Net income per common share: | |||||||||||
| Basic | $ 0.41 | $ 0.36 | $ 0.37 | $ 0.37 | $ 1.50 | $ 0.61 | $ 0.23 | ||||
| Diluted | $ 0.41 | $ 0.36 | $ 0.36 | $ 0.37 | $ 1.50 | $ 0.61 | $ 0.23 | ||||
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Capital Structure and Accumulated Comprehensive Income - Additional Information (Detail) (USD $)
In Millions, except Share data, unless otherwise specified |
1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2012
|
Feb. 06, 2012
|
Jan. 31, 2012
|
Dec. 31, 2011
|
Jul. 08, 2011
|
Nov. 25, 2008
|
Dec. 31, 2012
Common Stock [Member]
|
Dec. 31, 2012
Common Stock [Member]
|
Jun. 11, 2012
Common Stock [Member]
|
Dec. 31, 2012
Convertible note payable [Member]
|
|
| Comprehensive Income And Equity [Line Items] | |||||||||||
| Common stock authorized, shares | 500,000,000 | 500,000,000 | 2,941,176 | 100,000,000 | |||||||
| Common stock, par value | $ 0.01 | $ 0.01 | |||||||||
| Common stock issued | 52,920,704 | 52,920,704 | 2,941,176 | 2,941,176 | 50,000,000 | 1,000 | |||||
| Common stock, shares outstanding | 52,920,704 | 52,920,704 | 50,000,000 | ||||||||
| Special cash dividend, per share | $ 0.50 | ||||||||||
| Preferred stock, shares authorized | 10,000,000 | 10,000,000 | |||||||||
| Preferred stock, par value | $ 0.01 | $ 0.01 | |||||||||
| Preferred stock issued | 0 | 0 | 0 | ||||||||
| Preferred stock, shares outstanding | 0 | 0 | 0 | ||||||||
| Common stock, offering price | $ 17.00 | $ 17.00 | |||||||||
| Aggregate offering price at common stock | $ 50.0 | $ 50.0 | |||||||||
| Net proceeds | 40.8 | ||||||||||
| Offering expenses | 5.7 | ||||||||||
| Underwriting discounts and commissions | 3.5 | ||||||||||
| GGC RCS Holdings, Inc.- Note payable to GGC USS Holdings | 15.0 | ||||||||||
| Accrued interest | 1.7 | 1.7 | |||||||||
| Common stock repurchased | 25.0 | ||||||||||
| Common stock repurchase authorization period | 18 months | ||||||||||
| Common stock repurchase authorization period, conclusion date | Dec. 11, 2013 | ||||||||||
| Number of repurchased shares, common stock | 100,000 | ||||||||||
| Repurchased common stock, average price | $ 10.72 | ||||||||||
| Authorization to repurchase common stock | $ 23.9 | $ 23.9 | |||||||||
| Shares re-issued to satisfy employee option exercises | 9,528 | ||||||||||
| Treasury shares | 90,472 | 90,472 |
| X | ||||||||||
|
- Definition
Aggregate offering price at common stock. No definition available.
|
| X | ||||||||||
|
- Definition
Common Stock Special Dividends Per Share Declared No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Note payable converted to equity contribution. No definition available.
|
| X | ||||||||||
|
- Definition
Offering expenses. No definition available.
|
| X | ||||||||||
|
- Definition
Stock repurchased during period average price per share. No definition available.
|
| X | ||||||||||
|
- Definition
Stock repurchase program additional authorized repurchase amount. No definition available.
|
| X | ||||||||||
|
- Definition
Stock repurchase program period conclusion date. No definition available.
|
| X | ||||||||||
|
- Definition
Underwriting discounts and commissions. No definition available.
|
| X | ||||||||||
|
- Definition
Face amount or stated value of common stock per share; generally not indicative of the fair market value per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Increase for accrued, but unpaid interest on the debt instrument for the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Face amount or stated value per share of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer); generally not indicative of the fair market value per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of treasury shares (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount authorized by an entity's Board of Directors under a stock repurchase plan. No definition available.
|
| X | ||||||||||
|
- Definition
Period which shares may be purchased under a stock repurchase plan authorized by an entity's Board of Directors, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
|
| X | ||||||||||
|
- Definition
Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Accounts Receivable - Schedule of Accounts Receivable (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|---|---|---|---|
| Revenue, Major Customer [Line Items] | |||
| Trade receivables | $ 56,519 | $ 46,044 | |
| Less: Allowance for doubtful accounts | (1,053) | (779) | (832) |
| Net trade receivables | 55,466 | 45,265 | |
| Other receivables | 4,098 | 1,335 | |
| Total accounts receivable | $ 59,564 | $ 46,600 |
| X | ||||||||||
|
- Definition
Amount due from customers, clients, or other third-parties, or arising from transactions not separately disclosed, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value. No definition available.
|
| X | ||||||||||
|
- Definition
Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Accounts Receivable - Schedule of Allowance for Doubtful Accounts (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Valuation and Qualifying Accounts Disclosure [Line Items] | ||
| Beginning balance | $ 779 | $ 832 |
| Bad debt provision | 285 | (34) |
| Accounts written off | (11) | (19) |
| Ending balance | $ 1,053 | $ 779 |
| X | ||||||||||
|
- Definition
Amount of direct write-downs of receivables charged against the allowance for doubtful accounts. No definition available.
|
| X | ||||||||||
|
- Definition
A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Inventories - Schedule of Inventories (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Inventories [Line Items] | ||
| Supplies | $ 13,472 | $ 12,671 |
| Raw materials and work in process | 10,720 | 8,671 |
| Finished goods | 15,643 | 7,965 |
| Total inventories | $ 39,835 | $ 29,307 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount before last-in first-out (LIFO) and valuation reserves of merchandise or goods held by the entity that are readily available for sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount (lower of cost or market) as of the balance sheet date of inventories less all valuation and other allowances. Excludes noncurrent inventory balances (expected to remain on hand past one year or one operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate carrying amount as of the balance sheet date of items held by the entity which are partially completed at the time of measurement and unprocessed items that will go through the production process and become part of the final product. Includes supplies used directly or indirectly in the manufacturing or production process. This element may be used when the reporting entity combines work in process and raw materials into an aggregate amount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Gross amount of products used directly or indirectly in the manufacturing or production process, which may or may not become part of the final product. May also include items used in the storage, presentation or transportation of physical goods. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Property, Plant and Mine Development - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2012
|
Sep. 30, 2012
|
Jun. 30, 2012
|
Mar. 31, 2012
|
Dec. 31, 2011
|
Sep. 30, 2011
|
Jun. 30, 2011
|
Mar. 31, 2011
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Property, Plant and Equipment [Line Items] | |||||||||||
| Depreciation expense, including depletion and amortization | $ 7,179 | $ 5,968 | $ 5,974 | $ 5,978 | $ 5,363 | $ 5,295 | $ 5,252 | $ 5,089 | $ 25,099 | $ 20,999 | $ 19,305 |
| Capital lease obligation | 0 | 0 | |||||||||
| Property, plant and equipment interest capitalization | $ 934 | $ 575 | $ 456 | ||||||||
| X | ||||||||||
|
- Definition
Property plant and equipment interest capitalization. No definition available.
|
| X | ||||||||||
|
- Definition
Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Accrued Liabilities - Schedule of Accrued Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Schedule Of Accrued Liabilities [Line Items] | ||
| Accrued salaries and wages | $ 2,939 | $ 2,215 |
| Accrued vacation liability | 2,397 | 2,669 |
| Current portion of liability for pension and post-retirement benefits | 1,413 | 1,510 |
| Accrued healthcare liability | 1,278 | 1,155 |
| Other accrued liabilities | 1,454 | 2,326 |
| Total accrued liabilities | $ 9,481 | $ 9,875 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of obligations incurred through that date and payable to insurance entities to mitigate potential loss from various risks or to satisfy a promise to provide certain coverage's to employees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of obligations incurred and payable for unused vacation time owed to employees based on the entity's vacation benefit given to its employees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The current liability recognized in the balance sheet that is associated with defined benefit pension plans and other postretirement and postemployment benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Debt - Schedule of Debt (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2012
|
Dec. 31, 2011
|
Jun. 30, 2011
|
|---|---|---|---|
| Line of Credit Facility [Line Items] | |||
| Total debt | $ 255,425 | $ 261,789 | |
| Less: current portion | (2,433) | (6,364) | |
| Total long-term portion of debt | 252,992 | 255,425 | |
|
Revolving line-of-credit [Member]
|
|||
| Line of Credit Facility [Line Items] | |||
| Line of credit available | |||
|
Senior secured credit facility [Member]
|
|||
| Line of Credit Facility [Line Items] | |||
| Line of credit available | 255,425 | 257,857 | 260,000 |
|
Short-term notes [Member]
|
|||
| Line of Credit Facility [Line Items] | |||
| Notes payable | $ 3,932 |
| X | ||||||||||
|
- Definition
Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date before deducting unamortized discount or premiums (if any). May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount borrowed under the credit facility as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Debt - Schedule of Debt (Parenthetical) (Detail) (USD $)
In Thousands, unless otherwise specified |
1 Months Ended | 12 Months Ended | |
|---|---|---|---|
|
May 31, 2010
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
|
Senior secured credit facility [Member]
|
|||
| Line of Credit Facility [Line Items] | |||
| Revolving line-of-credit Expires | May 07, 2016 | Jun. 08, 2017 | |
| Revolving line-of-credit interest rate | 4.75% | 4.75% | |
| Term loan facility unamortized original issue discount | $ 675 | $ 843 | |
|
Short-term notes [Member]
|
|||
| Line of Credit Facility [Line Items] | |||
| Short-term notes due | Dec. 14, 2012 | ||
| Short-term notes interest rate | 6.00% | 6.00% | |
|
Revolving line-of-credit [Member]
|
|||
| Line of Credit Facility [Line Items] | |||
| Revolving line-of-credit Expires | Oct. 31, 2016 | ||
| Revolving line-of-credit interest rate | 5.00% | 5.00% |
| X | ||||||||||
|
- Definition
Interest rate stated in the contractual debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Date the credit facility terminates, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The effective interest rate at the end of the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Basis Point Reduction In Interest Rate No definition available.
|
| X | ||||||||||
|
- Definition
Early Extinguishment Of Debt Write Off Of Debt Discount No definition available.
|
| X | ||||||||||
|
- Definition
Letters Of Credit Sublimit Under Credit Facility No definition available.
|
| X | ||||||||||
|
- Definition
Line of credit available for general corporate use. No definition available.
|
| X | ||||||||||
|
- Definition
Line Of Credit Facility Reduction In Available Balance No definition available.
|
| X | ||||||||||
|
- Definition
Line Of Credit Increased Commitment Amount No definition available.
|
| X | ||||||||||
|
- Definition
Net Proceeds After Issuing Term loans At Discount And Deducting Underwriting Fees No definition available.
|
| X | ||||||||||
|
- Definition
Percentage Of Libor Rate Plus No definition available.
|
| X | ||||||||||
|
- Definition
Prime Rate Plus No definition available.
|
| X | ||||||||||
|
- Definition
Purchase Agreement Date No definition available.
|
| X | ||||||||||
|
- Definition
Redemption Of Subordinated Notes No definition available.
|
| X | ||||||||||
|
- Definition
Senior Secured Term Loan Facilities No definition available.
|
| X | ||||||||||
|
- Definition
Term Loan B Amended Base Rate No definition available.
|
| X | ||||||||||
|
- Definition
Term Loan Original Principal Amount No definition available.
|
| X | ||||||||||
|
- Definition
The percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
|
| X | ||||||||||
|
- Definition
Interest rate stated in the contractual debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. No definition available.
|
| X | ||||||||||
|
- Definition
Amount borrowed under the credit facility as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for financing purchases of goods acquired for inventory or imminent delivery to a customer. No definition available.
|
| X | ||||||||||
|
- Definition
Date the credit facility terminates, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The effective interest rate at the end of the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Maximum amount borrowed under the credit facility at any time during the period. No definition available.
|
| X | ||||||||||
|
- Definition
Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Debt - Schedule of Contractual Maturities of Long-Term Debt (Detail) (USD $)
|
Dec. 31, 2012
|
|---|---|
| Line of Credit Facility [Line Items] | |
| 2013 | $ 2,433 |
| 2014 | 2,435 |
| 2015 | 2,436 |
| 2016 | 124,648 |
| 2017 | 123,473 |
| Thereafter | |
| Debt, Total | $ 255,425 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Deferred Revenue - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
1 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
|
Nov. 25, 2008
|
Dec. 31, 2012
Notes maturing December 31, 2015 [Member]
|
Dec. 31, 2009
Notes maturing December 31, 2015 [Member]
|
Dec. 31, 2012
Notes maturing November 25, 2016 [Member]
|
|
| Deferred Costs and Future Payment Commitment for Retail Supply Agreements [Line Items] | ||||
| Advances received from two customers | $ 27 | |||
| Rate of interest on promissory notes | 10.00% | |||
| Notes maturity date | December 31, 2015 | November 25, 2016 | ||
| Revised interest rate notes value | $ 12 | $ 15 | ||
| Interest rate | 5.00% | 6.00% | ||
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Description of the maturity date of the debt instrument including whether the debt matures serially and, if so, a brief description of the serial maturities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Variable interest rate in effect as of the balance sheet date related to the interest rate derivative. No definition available.
|
| X | ||||||||||
|
- Definition
The value of notes retired (or transferred to another entity) in noncash investing or financing transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Cash received from customers for deposits on goods or services during the period; excludes deposits with other institutions and time deposits, which pertain to financial services entities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Fair Value Accounting - Schedule of Measure at Fair Value on Recurring Basis (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Defined Benefit Plan Disclosure [Line Items] | ||
| Interest rate derivatives | $ 11 | |
| Net asset | 11 | |
|
Measure at fair value on recurring basis [Member] | Level 1 [Member]
|
||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Interest rate derivatives | ||
| Net asset | ||
|
Measure at fair value on recurring basis [Member] | Level 2 [Member]
|
||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Interest rate derivatives | 11 | |
| Net asset | 11 | |
|
Measure at fair value on recurring basis [Member] | Level 3 [Member]
|
||
| Defined Benefit Plan Disclosure [Line Items] | ||
| Interest rate derivatives | ||
| Net asset |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Fair value of the gross assets less the gross liabilities of a derivative asset or group of derivative assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Derivative Instruments - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2012
|
Mar. 31, 2012
|
Dec. 31, 2011
MMBTU
|
|---|---|---|---|
| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Matured amount | $ 130.0 | $ 100.0 | |
| Upper limit of LIBOR for one-month | 4.00% | ||
| Original notional amount | 30.0 | ||
| Increase in notional amount | $ 130.0 | ||
| Cash flow hedges for natural gas | 420,000 |
| X | ||||||||||
|
- Definition
Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Derivative increased notional amount. No definition available.
|
| X | ||||||||||
|
- Definition
Mmbtus Covered By Natural Gas Swaps No definition available.
|
| X | ||||||||||
|
- Definition
High end of the range of percentage points added to the reference rate to compute the variable rate on the group of interest rate derivatives. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Aggregate notional amount of interest rate derivatives, which relates to the currency amount specified in the interest rate derivative instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Derivative Instruments - Estimated Fair Values of Derivative Instruments (Detail) (USD $)
|
12 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|
|
Dec. 31, 2012
|
Mar. 31, 2012
|
Dec. 31, 2012
Interest rate cap agreement [Member]
2012 [Member]
|
Dec. 31, 2011
Interest rate cap agreement [Member]
2012 [Member]
|
Dec. 31, 2012
Interest rate cap agreement [Member]
2013 [Member]
|
Dec. 31, 2011
Interest rate cap agreement [Member]
2013 [Member]
|
|
| Derivative Instruments, Gain (Loss) [Line Items] | ||||||
| Maturity Date | 2012 | 2013 | ||||
| Contract/Notional Amount | $ 130,000,000 | $ 100,000,000 | $ 100,000,000 | $ 130,000,000 | $ 30,000,000 | |
| Carrying Amount | 11,000 | |||||
| Fair Value | $ 11,000 |
| X | ||||||||||
|
- Definition
Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Derivative carrying amount. No definition available.
|
| X | ||||||||||
|
- Definition
Derivative instrument maturity date. No definition available.
|
| X | ||||||||||
|
- Definition
Fair value of the assets less the liabilities of a derivative or group of derivatives. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Derivative Instruments - Estimated Fair Values of Derivative Instruments (Parenthetical) (Detail)
|
Dec. 31, 2012
|
|---|---|
| Derivative Instruments, Gain (Loss) [Line Items] | |
| Upper limit of LIBOR for one-month | 4.00% |
| X | ||||||||||
|
- Definition
High end of the range of percentage points added to the reference rate to compute the variable rate on the group of interest rate derivatives. No definition available.
|
| X | ||||||||||
|
- Details
|
|
Derivative Instruments - Effect of Derivatives Instruments on Combined Statements of Operations and Comprehensive Income (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Derivative Instruments, Gain (Loss) [Line Items] | |||
| Deferred gains (losses) from derivatives in OCI, beginning of period | $ (409) | $ (532) | $ (49) |
| Gain (loss) recognized in OCI from derivative instruments | 123 | (483) | |
| Gain (loss) reclassified from Accumulated OCI | 227 | ||
| Deferred gains (losses) from derivatives in OCI, end of period | $ (182) | $ (409) | $ (532) |
| X | ||||||||||
|
- Definition
Deferred gains losses from derivatives in other comprehensive income. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Intrinsic Value of Stock Options Exercised No definition available.
|
| X | ||||||||||
|
- Definition
Reversal Of Allocated Share Based Compensation Expense No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Exercisable Vested Number No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants Authorized In Period No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Outstanding Number Vested In Period No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized Increase Decrease No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Options Nonvested Weighted Average Exercise Price No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation By Share Based Payment Award Unamortized Compensation Expense No definition available.
|
| X | ||||||||||
|
- Definition
Share based compensation expense unrecognized. No definition available.
|
| X | ||||||||||
|
- Definition
Special Cash Dividend Per Share No definition available.
|
| X | ||||||||||
|
- Definition
Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock. No definition available.
|
| X | ||||||||||
|
- Definition
Description of the stock split arrangement. Also provide the retroactive effect given by a stock split that occurs after the balance date but before the release of financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Tax benefits realized from the exercise of stock options resulting in reductions in the entity's income taxes, which increases net cash provided by operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of shares of restricted stock determined by relating the portion of time within a reporting period that restricted shares have been outstanding to the total time in that period. Restricted shares are subject to sales, contractual, regulatory or other restrictions that prevent or inhibit the holder from freely disposing of them before the restriction ends. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Equity-Based Compensation - Summary of Activity with Respect to Equity Incentive Units (Detail) (Class C Units [Member], USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
|
Class C Units [Member]
|
|||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Number of Units, Unvested, Beginning balance | 1,051,667 | 2,418,834 | 3,155,001 |
| Number of Units, Granted | |||
| Number of Units, Vested | (420,667) | (499,542) | (736,167) |
| Number of Units, Forfeited | (210,333) | (867,625) | |
| Number of Units, Unvested, Ending balance | 420,667 | 1,051,667 | 2,418,834 |
| Grand Date Weighted Average Fair Value, Unvested, Beginning balance | $ 0.52 | $ 0.52 | $ 0.52 |
| Grand Date Weighted Average Fair Value, Granted | |||
| Grand Date Weighted Average Fair Value, Vested | $ 0.52 | $ 0.52 | $ 0.52 |
| Grand Date Weighted Average Fair Value, Forfeited | $ 0.52 | $ 0.52 | |
| Grand Date Weighted Average Fair Value, Unvested, Ending balance | $ 0.52 | $ 0.52 | $ 0.52 |
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
|
Equity-Based Compensation - Assumptions Used in Black-Scholes Pricing Model (Detail)
|
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Fair Value Assumption Used To Determine Options Fair Value [Line Items] | ||
| Expected volatility | 45.00% | 45.00% |
| Expected term | 6 years 3 months | |
| Expected dividend yield | 0.00% | 0.00% |
| Expected forfeiture rate | 0.00% | 0.00% |
|
Equity units [Member]
|
||
| Fair Value Assumption Used To Determine Options Fair Value [Line Items] | ||
| Risk-free interest rate | 1.87% | |
| Expected volatility | 50.00% | |
| Expected term | 4 years | |
|
Minimum [Member]
|
||
| Fair Value Assumption Used To Determine Options Fair Value [Line Items] | ||
| Risk-free interest rate | 0.83% | 1.21% |
| Expected term | 5 years 5 months 23 days | |
|
Maximum [Member]
|
||
| Fair Value Assumption Used To Determine Options Fair Value [Line Items] | ||
| Risk-free interest rate | 1.05% | 2.01% |
| Expected term | 6 years 3 months | |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Yield No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Forfeiture Rate No definition available.
|
| X | ||||||||||
|
- Definition
Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The range of expected volatilities used and the weighted-average expected volatility for an entity using a valuation technique with different volatilities during the contractual term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Fair Value No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Options, Forfeited In Period, Fair Value No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Options Granted In Period Fair Value No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Options Nonvested Number No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Options Vested In Period No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangement By Share Based Payment Award Options Vested Weighted Average Exercise Price No definition available.
|
| X | ||||||||||
|
- Definition
Share Based Compensation Arrangements By Share Based Payment Award Options, Non Vested In Period, Fair Value No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Weighted average price of options that were either forfeited or expired. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Net number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock. No definition available.
|
| X | ||||||||||
|
- Definition
Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
|
| X | ||||||||||
|
- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded. No definition available.
|
| X | ||||||||||
|
- Definition
The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Leases - Future Minimum Annual Commitments under Operating Leases (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2012
|
|---|---|
| Leases [Line Items] | |
| 2013 | $ 10,813 |
| 2014 | 8,226 |
| 2015 | 7,528 |
| 2016 | 5,924 |
| 2017 | 4,051 |
| Thereafter | 5,552 |
| Total future lease commitments | $ 42,094 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of required minimum rental payments maturing in the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of required minimum rental payments maturing in the forth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of required minimum rental payments maturing in the third fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of required minimum rental payments maturing after the fifth fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Leases - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Leases [Line Items] | |||
| Expense related to operating leases and rental agreements | $ 11.9 | $ 6.5 | $ 4.3 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Commitments and Contingencies - Additional Information (Detail) (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
Claim
|
Dec. 31, 2011
Claim
|
Dec. 31, 2010
Claim
|
|
| Commitments And Contingencies [Line Items] | |||
| Products liability claims outstanding | 102,000 | ||
| Number of new claims | 2 | 3 | 10 |
| Underlying insurance policies receivable | $ 5,100,000 | ||
| Third-party products claims liability under insurance in other assets | 247,000 | 511,000 | |
| Third-party products claims liability under insurance in other long-term obligations | 1,300,000 | 1,500,000 | |
| Gain and loss from pre-tax adjustments | $ 3,400,000 | $ 2,600,000 | $ (762,000) |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Gain Loss On Pre-Tax Adjustments No definition available.
|
| X | ||||||||||
|
- Definition
Number of new claims. No definition available.
|
| X | ||||||||||
|
- Definition
Number Of Products Liability Claims No definition available.
|
| X | ||||||||||
|
- Definition
Third-party products claims liability under insurance in other assets. No definition available.
|
| X | ||||||||||
|
- Definition
The estimated cost of settling claims under the terms of the underlying insurance policies and assumed and ceded insurance contracts as of the balance sheet date, including an estimate for claims which have been incurred but not reported and the actual and estimated costs of settling claims. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash inflow for proceeds from life insurance policies for which the entity is the beneficiary. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Income Taxes - Summary of Income Tax (Expense) Benefit (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2012
|
Sep. 30, 2012
|
Jun. 30, 2012
|
Mar. 31, 2012
|
Dec. 31, 2011
|
Sep. 30, 2011
|
Jun. 30, 2011
|
Mar. 31, 2011
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Schedule Of Components Of Income Tax Expense Benefit [Line Items] | |||||||||||
| Federal | $ (22,165) | $ (3,222) | $ (1,951) | ||||||||
| State | (6,237) | (51) | (55) | ||||||||
| Current income tax total | (28,402) | (3,273) | (2,006) | ||||||||
| Federal | (3,645) | (2,624) | 563 | ||||||||
| State | 1,396 | (1,265) | (886) | ||||||||
| Deferred income tax total | 1,095 | (659) | (1,324) | ||||||||
| Income tax expense | $ 8,030 | $ 8,302 | $ 7,287 | $ 7,032 | $ (371) | $ 3,412 | $ 2,474 | $ 1,647 | $ (30,651) | $ (7,162) | $ (2,329) |
| X | ||||||||||
|
- Definition
Current Federal Income Tax Expense Benefit Continuing Operations No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The component of income tax expense for the period representing amounts of income taxes paid or payable (or refundable) for the period for all income tax obligations as determined by applying the provisions of relevant enacted tax laws to relevant amounts of taxable Income or Loss from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted state and local tax law to relevant amounts of taxable Income or Loss from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The component of total income tax expense for the period comprised of the increase (decrease) during the period in the entity's domestic deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of the federally enacted tax law. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The component of income tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The component of total income tax expense for the period comprised of the increase (decrease) in the entity's state and local deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of the applicable enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Deferred Tax Assets Accrued Expenses No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Assets Excess Stock Based Compensation Expense No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Assets Net Operating Loss Carryforward Noncurrent No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Assets Property Plant Equipment No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Liabilities Depreciable Fixed Assets No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Liabilities Intangible Assets No definition available.
|
| X | ||||||||||
|
- Definition
Deferred Tax Liabilities Property No definition available.
|
| X | ||||||||||
|
- Definition
Products liability claims outstanding. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible alternative minimum tax credit carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from employee benefit costs not otherwise specified in the taxonomy, which can only be deducted for tax purposes when actual costs are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred tax liability attributable to taxable temporary differences net of deferred tax asset attributable to deductible temporary differences and carryforwards after valuation allowances. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Gross amount of noncurrent deferred tax liabilities, which result from applying the applicable tax rate to taxable temporary differences pertaining to each jurisdiction to which the entity is obligated to pay income tax. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred tax liability attributable to taxable temporary differences, net of deferred tax asset attributable to deductible temporary differences and carryforwards net of valuation allowances expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of deferred tax liability attributable to taxable temporary differences not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Income Taxes - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Income Tax [Line Items] | ||
| Federal net operating loss carry forwards | $ 0 | $ 59.9 |
| Alternative minimum tax credit carry forward | $ 25.9 | $ 11.9 |
| X | ||||||||||
|
- Definition
Alternative Minimum Tax Credit Carry Forward No definition available.
|
| X | ||||||||||
|
- Definition
Federal Net Operating Loss Carry Forwards No definition available.
|
| X | ||||||||||
|
- Details
|
|
Income Taxes - Summary of Effective Income Tax Rate on Pretax Earnings (Detail)
|
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Schedule Of Effective Income Tax Rate Reconciliation [Line Items] | |||
| (Expense) benefit computed at U.S. federal statutory rate | (35.00%) | (35.00%) | (35.00%) |
| Percentage depletion | 9.90% | 17.50% | 31.50% |
| Prior year tax return reconciliation | (0.50%) | 0.40% | (3.40%) |
| State income taxes, net of federal benefit | (2.70%) | (1.60%) | (0.40%) |
| Domestic production deduction | 0.70% | ||
| Medicare Part D subsidy | (0.10%) | (8.70%) | |
| Equity-based compensation | (0.10%) | (0.20%) | (1.00%) |
| Other, net | (0.20%) | (0.10%) | |
| Income tax (expense) benefit | (27.90%) | (19.10%) | (17.00%) |
| X | ||||||||||
|
- Definition
Change In Percentage Of Depletion No definition available.
|
| X | ||||||||||
|
- Definition
Income Tax Expense Benefit Percentage Of Pretax Income No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to the extraterritorial income exclusion deduction received under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of difference between the effective income tax rate and domestic federal statutory income tax rate attributable to the deduction received under enacted tax laws for Medicare prescription drug benefits (subsidies). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to differences in the deductibility or nondeductibility of incentive stock options and other equity-based compensation costs in accordance with generally accepted accounting principles and enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to all other items not otherwise listed in the existing taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to revisions in previously reported amounts of income tax provision. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the state and local income tax expense or benefit, net of the federal tax benefit (expense) thereon, recorded during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Pension and Post-Retirement Benefits - Summarizes Information about Pension and Post-Retirement Benefit Plans (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
|
Pension Benefits [Member]
|
|||
| Pension Plans, Postretirement and Other Employee Benefits [Line Items] | |||
| Service cost-benefits earned during the period | $ 1,118 | $ 1,145 | $ 993 |
| Interest cost | 4,734 | 4,755 | 4,780 |
| Expected return on plan assets | (5,381) | (4,817) | (4,048) |
| Special termination benefit | 30 | ||
| Net amortization and deferral | 1,105 | 595 | 146 |
| Net pension benefit costs | 1,576 | 1,678 | 1,901 |
|
Post-retirement Benefits [Member]
|
|||
| Pension Plans, Postretirement and Other Employee Benefits [Line Items] | |||
| Service cost-benefits earned during the period | 197 | 185 | 177 |
| Interest cost | 1,163 | 1,161 | 1,210 |
| Expected return on plan assets | (4) | (5) | (5) |
| Net amortization and deferral | 177 | ||
| Net pension benefit costs | $ 1,533 | $ 1,341 | $ 1,382 |
| X | ||||||||||
|
- Definition
Defined Benefit Plan Amortization And Deferrals Net No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
An amount calculated as a basis for determining the extent of delayed recognition of the effects of changes in the fair value of assets. The expected return on plan assets is determined based on the expected long-term rate of return on plan assets and the market-related value of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of increase related to special termination benefits offered to and accepted by employees in connection with their termination of employment that are only offered for a short period of time. A situation involving termination benefits may also involve a curtailment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Actuarial Net Gains Losses Recognized No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Benefits Paid Plan Assets No definition available.
|
| X | ||||||||||
|
- Definition
The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase in the fair value of plan assets from contributions made by the employer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Changes in the defined benefit obligation, not otherwise separately disclosed in the financial statements. No definition available.
|
| X | ||||||||||
|
- Definition
The amount of increase or decrease due to a change in the terms of an existing plan or the initiation of a new plan. A plan amendment may increase or decrease benefits, including those attributed to years of service already rendered. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Pension and Post-Retirement Benefits - Additional Information (Detail) (USD $)
|
12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2012
Y
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2012
Pension Benefits [Member]
|
Dec. 31, 2011
Pension Benefits [Member]
|
Dec. 31, 2013
Pension Benefits [Member]
Subsequent Event [Member]
|
Dec. 31, 2012
Post-retirement Benefits [Member]
|
Dec. 31, 2011
Post-retirement Benefits [Member]
|
Dec. 31, 2013
Post-retirement Benefits [Member]
Subsequent Event [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | |||||||||
| Accumulated benefit obligation | $ 107,000,000 | $ 99,400,000 | |||||||
| Service period | 35 | ||||||||
| Projected benefit obligation of plan assets | 1,700,000 | 1,600,000 | |||||||
| Accumulated benefit obligation of plan assets | 1,700,000 | 1,600,000 | |||||||
| Fair value of plan assets | 0 | 0 | |||||||
| Employer contributions for the post-retirement medical and life plan | 2,300,000 | 1,300,000 | |||||||
| Net actuarial loss | 1,970,000 | 1,728,000 | 242,000 | ||||||
| Prior service cost | 83,000 | 83,000 | |||||||
| Discount rate reflects the expected long-term rates of return | 0.05% | ||||||||
| Percentage of contributions to individual multiemployer pension funds | 5.00% | ||||||||
| Company contribution over defined benefit plan | 4.00% | ||||||||
| Company contributing percentage on defined benefit plan | 25.00% | ||||||||
| Employee contribution over defined benefit plan | 8.00% | ||||||||
| Company contribution on profit sharing match | 75.00% | ||||||||
| Employer contributions | $ 1,400,000 | $ 1,000,000 | $ 802,000 | $ 4,781,000 | $ 11,009,000 | $ 1,084,000 | $ 1,140,000 | ||
| X | ||||||||||
|
- Definition
Defined benefit plan accumulated other comprehensive income actuarial net gains losses. No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit Net Of Tax No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Assumptions Used Calculating Benefit Obligation And Net Periodic Benefit Cost Discount Rate No definition available.
|
| X | ||||||||||
|
- Definition
Defined Contribution Plan Employer Over Matching Contribution Percent No definition available.
|
| X | ||||||||||
|
- Definition
Defined Contribution Plan Percent Of Employee Salary Matched No definition available.
|
| X | ||||||||||
|
- Definition
Vesting Service Period For Defined Benefit Pension Plan No definition available.
|
| X | ||||||||||
|
- Definition
For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The increase in the fair value of plan assets from contributions made by the employer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
If aggregate disclosures are presented, the aggregate pension accumulated benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
If aggregate disclosures are presented, the aggregate fair value of plan assets for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
If aggregate disclosures are presented, the aggregate projected benefit obligation for pension plans with accumulated benefit obligations in excess of plan assets as of the measurement date of each statement of financial position presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. No definition available.
|
| X | ||||||||||
|
- Definition
Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan. No definition available.
|
| X | ||||||||||
|
- Definition
Percentage of contributions required by a collective bargaining arrangement to contributions required by all collective bargaining arrangements related to a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of costs recognized during the period for non-pension postretirement benefits, such as medical, dental and life insurance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Pension and Post-Retirement Benefits - Estimated Future Pension and Post-Retirement Benefit Payments (Detail) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2012
|
|---|---|
|
Pension Benefits [Member]
|
|
| Pension Plans, Postretirement and Other Employee Benefits [Line Items] | |
| 2013 | $ 5,930 |
| 2014 | 6,120 |
| 2015 | 6,345 |
| 2016 | 6,571 |
| 2017 | 6,827 |
| 2018-2022 | 36,763 |
|
Post-retirement Benefits [Member] | Before Medicare Subsidy [Member]
|
|
| Pension Plans, Postretirement and Other Employee Benefits [Line Items] | |
| 2013 | 1,506 |
| 2014 | 1,427 |
| 2015 | 1,447 |
| 2016 | 1,477 |
| 2017 | 1,581 |
| 2018-2022 | 8,401 |
|
Post-retirement Benefits [Member] | After Medicare Subsidy [Member]
|
|
| Pension Plans, Postretirement and Other Employee Benefits [Line Items] | |
| 2013 | 1,339 |
| 2014 | 1,427 |
| 2015 | 1,447 |
| 2016 | 1,477 |
| 2017 | 1,581 |
| 2018-2022 | $ 8,401 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the next fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the fifth fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the fourth fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the third fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of benefits expected to be paid in the second fiscal year following the latest fiscal year from a defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Pension and Post-Retirement Benefits - Amounts in Accumulated Other Comprehensive Income Expected to be Recognized as Components of Net Periodic Benefit Cost (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended |
|---|---|
|
Dec. 31, 2012
|
|
| Pension Plans, Postretirement and Other Employee Benefits [Line Items] | |
| Net actuarial loss | $ 1,970 |
| Prior service cost | 83 |
| Total | 2,053 |
|
Pension Benefits [Member]
|
|
| Pension Plans, Postretirement and Other Employee Benefits [Line Items] | |
| Net actuarial loss | 1,728 |
| Prior service cost | 83 |
| Total | 1,811 |
|
Post-retirement Benefits [Member]
|
|
| Pension Plans, Postretirement and Other Employee Benefits [Line Items] | |
| Net actuarial loss | 242 |
| Total | $ 242 |
| X | ||||||||||
|
- Definition
Defined benefit plan accumulated other comprehensive income actuarial net gains losses. No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Accumulated Other Comprehensive Income Net Prior Service Cost Credit Net Of Tax No definition available.
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Amount Accumulated Other Comprehensive Income No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The interest rate used to adjust for the time value of money for the plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Expected rate of compensation increases (for pay-related plans). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The assumed health care cost trend rate for the next year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The ultimate trend rate for health care costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Year the ultimate health care cost trend rate is expected to be reached, in CCYY format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Pension and Post-Retirement Benefits - Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates (Detail) (USD $)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2012
|
|
| Pension Plans, Postretirement and Other Employee Benefits [Line Items] | |
| Effect on total of service and interest cost, Increase | $ 164 |
| Effect on post-retirement benefit obligation, Increase | 3,161 |
| Effect on total of service and interest cost, Decrease | (139) |
| Effect on post-retirement benefit obligation, Decrease | $ (2,672) |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The effect of a one-percentage-point increase in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The effect of a one-percentage-point increase in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Defined Benefit Plan Fair Value Of Plan Assets Percentage No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Pension and Post-Retirement Benefits - Summary of Multiemployer Pension Plan (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
|
LIUNA [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| EIN/Pension Plan No. | 52-6074345/001 | ||
| 2011 | Red | Red | |
| 2010 | $ 123 | $ 116 | $ 100 |
| 2012 | 123 | 116 | 100 |
| Imposed | Yes | ||
| Expiration Date of CBA | May 31, 2014 | ||
|
IUOE [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| EIN/Pension Plan No. | 36-6052390/001 | ||
| 2011 | Green | Green | |
| 2010 | 19 | 16 | 13 |
| 2012 | 19 | 16 | 13 |
| Imposed | No | ||
| Expiration Date of CBA | Jul. 31, 2015 | ||
|
CSSS [Member]
|
|||
| Defined Benefit Plan Disclosure [Line Items] | |||
| EIN/Pension Plan No. | 36-6044243/001 | ||
| 2011 | Red | Red | |
| 2010 | 51 | 26 | 16 |
| 2012 | $ 51 | $ 26 | $ 16 |
| Imposed | NA | ||
| X | ||||||||||
|
- Definition
Multiemployer Plan Number Description No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of contributions made to multiemployer plans by the employer. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Indicate the multiemployer plan's certified zone status as currently required by the Pension Protection Act of 2006 or a subsequent amendment thereof. The zone status categories are red (critical status), orange (seriously endangered), yellow (endangered), and green (none of the above). The acceptable values are "red", "orange", "yellow", "green", "other", and "NA". A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Expiration date of the collective bargaining arrangement requiring contributions to the multiemployer plan, in CCYY-MM-DD format. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Indicate whether the employer paid a surcharge to the pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. The acceptable values are "no", "yes", and "NA". Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Pension and Post-Retirement Benefits - Summary of Multiemployer Pension Plan (Parenthetical) (Detail) (Central States, Southeast and Southwest Areas Pension Plan [Member], USD $)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2011
|
|
|
Central States, Southeast and Southwest Areas Pension Plan [Member]
|
|
| Defined Benefit Plan Disclosure [Line Items] | |
| Withdrawal liability form Pension Plan | $ 1,000,000 |
| Withdrawal liability paid on monthly installments | $ 4,000 |
| Period of last installments | The withdrawal liability of $1.0 million will be paid in monthly installments of $4 until 2031. |
| X | ||||||||||
|
- Definition
Multiemployer Plan Withdrawal Liability Period Contributions No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Description of the significant collective-bargaining arrangements within the range of expiration dates for collective-bargaining arrangements requiring contributions to a multiemployer plan as well as other information to help investors understand the significance of the collective-bargaining agreements and when they expire. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of the obligation recognized by withdrawing from a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. No definition available.
|
|
Obligations Under Guarantees - Additional Information (Detail) (USD $)
|
12 Months Ended |
|---|---|
|
Dec. 31, 2012
Vehicle
|
|
|
Kanawha Rail Corporations [Member]
|
|
| Loss Contingencies [Line Items] | |
| Number of railroad cars | 199 |
| Payment for rent | $ 66,000 |
|
Surety bonds [Member]
|
|
| Loss Contingencies [Line Items] | |
| Surety bonds outstanding | 4,700,000 |
|
Surety bonds [Member] | Safeco Insurance Company of America [Member]
|
|
| Loss Contingencies [Line Items] | |
| Surety bonds outstanding | 513,000 |
|
Reclamation bonds [Member]
|
|
| Loss Contingencies [Line Items] | |
| Bonds related to reclamation requirements | $ 4,600,000 |
| X | ||||||||||
|
- Definition
Number of Railroad cars. No definition available.
|
| X | ||||||||||
|
- Definition
Long-Term transition bonds are bonds under the Competition Act in which the proceeds of Transition Bonds are required to be used principally to reduce qualified stranded costs and the related capitalization of the utility. This represents the current portion. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of letters of credit and other surety bonds that are available for the future payment of malpractice claims. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Cash payments to lessor's for use of assets under operating leases. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Related Party Transactions - Additional Information (Detail) (USD $)
|
12 Months Ended | 12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2012
Golden Gate Capital Acquisition [Member]
|
Dec. 31, 2011
Golden Gate Capital Acquisition [Member]
Advisory Agreement [Member]
|
Dec. 31, 2010
Golden Gate Capital Acquisition [Member]
Advisory Agreement [Member]
|
Dec. 31, 2012
Promissory note [Member]
|
Jan. 31, 2012
Promissory note [Member]
|
Dec. 22, 2010
Promissory note [Member]
|
|
| Related Party Transaction [Line Items] | ||||||||
| Annual advisory fee | $ 1,250,000 | $ 1,300,000 | $ 1,300,000 | |||||
| Transaction fee percent | 1.25% | |||||||
| Termination fee | 8,000,000 | |||||||
| Additional expense | 0 | |||||||
| Promissory note with GGC USS Holdings, LLC. | 15,000,000 | |||||||
| Promissory note, maturity date | Dec. 22, 2015 | |||||||
| Interest rate of promissory note | 10.00% | |||||||
| Promissory note, payment terms | Outstanding principal and interest under the note are payable upon demand, but no later than the maturity date. Upon sole election by GGC Holdings, any unpaid interest may be paid in cash on each December 22 of each year until the maturity date | |||||||
| Accrued interest | 1,700,000 | |||||||
| Conversion of promissory note to equity | $ 15,000,000 | |||||||
| X | ||||||||||
|
- Definition
Additional expenses incurred related to termination. No definition available.
|
| X | ||||||||||
|
- Definition
Debt Conversion Converted Instrument Shares Issued Value No definition available.
|
| X | ||||||||||
|
- Definition
Interest rate stated in the contractual debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Description of the payment terms of the debt instrument (for example, whether periodic payments include principal and frequency of payments) and discussion about any contingencies associated with the payment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of accrued but unpaid interest on deposit liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fees earned for providing investment advice and research to customers. Such services may include the investment management of mutual funds and separate accounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of early contract termination fees included in liabilities subject to compromise. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount for notes payable (written promise to pay), due to related parties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties. No definition available.
|
|
Segment Reporting - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2012
Segment
Product
|
Dec. 31, 2011
|
|
| Operating Statistics [Line Items] | ||
| Number of reportable segments | 2 | |
| Number of products in Industrial & Specialty segment | 250 | |
| Industrial & Specialty Products segment, description | Over 250 products and materials used in a variety of industries including, container glass, fiberglass, specialty glass, flat glass, building products, fillers and extenders, foundry products, chemicals, recreation products and filtration products. | |
| Goodwill | $ 68,403 | $ 68,403 |
| Maximum percentage of net sales | 10.00% | |
|
Goodwill related segment [Member]
|
||
| Operating Statistics [Line Items] | ||
| Goodwill | 68,400 | |
|
Oil & Gas Proppants [Member]
|
||
| Operating Statistics [Line Items] | ||
| Goodwill | 47,700 | |
|
Industrial and Specialty Products [Member]
|
||
| Operating Statistics [Line Items] | ||
| Goodwill | $ 20,700 |
| X | ||||||||||
|
- Definition
Number of products from which reportable segment derives its revenues. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Percentage Of Net Sales Per Customer Maximum No definition available.
|
| X | ||||||||||
|
- Definition
Description of the types of products and services from which the reportable segment derives its revenue. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. No definition available.
|
|
Segment Reporting - Presentation of Sales and Segment Contribution Margin for Reporting Segments and Other Operating Results (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2012
|
Sep. 30, 2012
|
Jun. 30, 2012
|
Mar. 31, 2012
|
Dec. 31, 2011
|
Sep. 30, 2011
|
Jun. 30, 2011
|
Mar. 31, 2011
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Segment Reporting Information [Line Items] | |||||||||||
| Total sales | $ 118,846 | $ 115,885 | $ 104,599 | $ 102,591 | $ 83,631 | $ 73,453 | $ 74,080 | $ 64,432 | $ 441,921 | $ 295,596 | $ 244,953 |
| Operating activities excluded from segment cost of goods sold | 29,137 | 30,076 | 29,987 | 29,788 | 13,048 | 17,389 | 19,934 | 10,432 | 118,988 | 60,803 | 45,991 |
| Selling, general and administrative | (11,542) | (10,135) | (9,718) | (9,904) | (6,856) | (5,216) | (5,952) | (5,324) | (41,299) | (23,348) | (20,413) |
| Depreciation, depletion and amortization | (7,179) | (5,968) | (5,974) | (5,978) | (5,363) | (5,295) | (5,252) | (5,089) | (25,099) | (20,999) | (19,305) |
| Interest expense | (3,244) | (3,326) | (3,428) | (3,797) | (3,902) | (3,832) | (5,224) | (5,449) | (13,795) | (18,407) | (23,034) |
| Income before income taxes | 29,824 | 27,098 | 26,738 | 26,145 | 9,674 | 13,754 | 8,830 | 5,157 | 109,805 | 37,415 | 13,721 |
|
Reporting segments [Member]
|
|||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Total sales | 441,921 | 295,596 | 244,953 | ||||||||
| Total segment contribution margin | 193,671 | 120,603 | 89,149 | ||||||||
| Operating activities excluded from segment cost of goods sold | (8,285) | (6,203) | (2,190) | ||||||||
| Selling, general and administrative | (41,299) | (23,348) | (20,413) | ||||||||
| Advisory fees to parent | (9,250) | (1,250) | |||||||||
| Depreciation, depletion and amortization | (25,099) | (20,999) | (19,305) | ||||||||
| Interest expense | (13,795) | (18,407) | (23,034) | ||||||||
| Early extinguishment of debt | (6,043) | (10,195) | |||||||||
| Other income, net, including interest income | 4,612 | 1,062 | 959 | ||||||||
| Income before income taxes | 109,805 | 37,415 | 13,721 | ||||||||
|
Reporting segments [Member] | Oil & Gas Proppants [Member]
|
|||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Total sales | 243,765 | 107,074 | 69,556 | ||||||||
| Total segment contribution margin | 140,070 | 67,590 | 43,118 | ||||||||
|
Reporting segments [Member] | Industrial and Specialty Products [Member]
|
|||||||||||
| Segment Reporting Information [Line Items] | |||||||||||
| Total sales | 198,156 | 188,522 | 175,397 | ||||||||
| Total segment contribution margin | $ 53,601 | $ 53,013 | $ 46,031 | ||||||||
| X | ||||||||||
|
- Definition
The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of interest income and other income recognized during the period. Included in this element is interest derived from investments in debt securities, cash and cash equivalents, and other investments which reflect the time value of money or transactions in which the payments are for the use or forbearance of money and other income from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business). No definition available.
|
| X | ||||||||||
|
- Definition
The cost of borrowed funds accounted for as interest that was charged against earnings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fees earned for providing investment advice and research to customers. Such services may include the investment management of mutual funds and separate accounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The net result for the period of deducting operating expenses from operating revenues. No definition available.
|
| X | ||||||||||
|
- Definition
Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Amount of total revenue for the reportable segments, including revenue from external customers, transactions with other operating segments of the same entity, and (gross) interest revenue. All considered to be "operating revenue" for purposes of the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Unaudited Supplementary Data - Unaudited Quarterly Information (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2012
|
Sep. 30, 2012
|
Jun. 30, 2012
|
Mar. 31, 2012
|
Dec. 31, 2011
|
Sep. 30, 2011
|
Jun. 30, 2011
|
Mar. 31, 2011
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
|
| Condensed Unaudited Quarterly Financial Data [Line Items] | |||||||||||
| Sales | $ 118,846 | $ 115,885 | $ 104,599 | $ 102,591 | $ 83,631 | $ 73,453 | $ 74,080 | $ 64,432 | $ 441,921 | $ 295,596 | $ 244,953 |
| Costs of goods sold | 70,988 | 69,706 | 58,920 | 56,921 | 50,051 | 45,241 | 42,629 | 43,275 | 256,535 | 181,196 | 157,994 |
| Operating expenses | |||||||||||
| Selling, general and administrative | 11,542 | 10,135 | 9,718 | 9,904 | 6,856 | 5,216 | 5,952 | 5,324 | 41,299 | 23,348 | 20,413 |
| Advisory fees to parent | 8,313 | 312 | 313 | 312 | 9,250 | 1,250 | |||||
| Depreciation, depletion and amortization | 7,179 | 5,968 | 5,974 | 5,978 | 5,363 | 5,295 | 5,252 | 5,089 | 25,099 | 20,999 | 19,305 |
| Total operating expenses | 18,721 | 16,103 | 15,692 | 15,882 | 20,532 | 10,823 | 11,517 | 10,725 | 66,398 | 53,597 | 40,968 |
| Operating income | 29,137 | 30,076 | 29,987 | 29,788 | 13,048 | 17,389 | 19,934 | 10,432 | 118,988 | 60,803 | 45,991 |
| Other (expense) income | |||||||||||
| Interest expense | (3,244) | (3,326) | (3,428) | (3,797) | (3,902) | (3,832) | (5,224) | (5,449) | (13,795) | (18,407) | (23,034) |
| Early extinguishment of debt | (6,043) | (6,043) | (10,195) | ||||||||
| Other income, net, including interest income | 3,931 | 348 | 179 | 154 | 528 | 197 | 163 | 174 | 4,612 | 1,062 | 959 |
| Total other (expenses) benefit | 687 | (2,978) | (3,249) | (3,643) | (3,374) | (3,635) | (11,104) | (5,275) | (9,184) | (23,388) | (32,270) |
| Income before income taxes | 29,824 | 27,098 | 26,738 | 26,145 | 9,674 | 13,754 | 8,830 | 5,157 | 109,805 | 37,415 | 13,721 |
| Income tax (expense) benefit | (8,030) | (8,302) | (7,287) | (7,032) | 371 | (3,412) | (2,474) | (1,647) | 30,651 | 7,162 | 2,329 |
| Net income | $ 21,794 | $ 18,796 | $ 19,451 | $ 19,113 | $ 10,045 | $ 10,342 | $ 6,356 | $ 3,510 | $ 79,154 | $ 30,253 | $ 11,392 |
| Earnings per share, basis and diluted | $ 0.20 | $ 0.21 | $ 0.13 | $ 0.07 | |||||||
| Earnings per share, basic | $ 0.41 | $ 0.36 | $ 0.37 | $ 0.37 | $ 1.50 | $ 0.61 | $ 0.23 | ||||
| Earnings per share, diluted | $ 0.41 | $ 0.36 | $ 0.36 | $ 0.37 | $ 1.50 | $ 0.61 | $ 0.23 | ||||
| Weighted average common shares outstanding (in thousands), basic | 52,891,000 | 52,873,000 | 52,440,000 | 51,939,000 | 50,000,000 | 50,000,000 | 50,000,000 | 50,000,000 | 52,662 | 50,000 | 50,000 |
| Weighted average common shares outstanding (in thousands), diluted | 52,963,000 | 52,887,000 | 52,505,000 | 52,031,000 | 50,006,000 | 50,031,000 | 50,000,000 | 50,000,000 | 52,711 | 50,006 | 50,000 |
| X | ||||||||||
|
- Definition
Advisory fees to parent No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Total costs related to goods produced and sold during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. No definition available.
|
| X | ||||||||||
|
- Definition
The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Gross amount of debt extinguished. No definition available.
|
| X | ||||||||||
|
- Definition
This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The sum of the current income tax expense or benefit and the deferred income tax expense or benefit pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cost of borrowed funds accounted for as interest that was charged against earnings during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The net result for the period of deducting operating expenses from operating revenues. No definition available.
|
| X | ||||||||||
|
- Definition
The aggregate amount of other income amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) profits on securities (net of losses), and (d) miscellaneous other income items. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
|
Subsequent Events - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | 1 Months Ended | ||
|---|---|---|---|---|
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Feb. 21, 2013
Subsequent Event [Member]
Quality Sand Products LLC [Member]
|
|
| Subsequent Event [Line Items] | ||||
| Purchase of business | $ 105,719 | $ 66,745 | $ 15,241 | $ 7,900 |
| X | ||||||||||
|
- Definition
The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|