Income Taxes - Schedule of Provision for Income Taxes from Continuing Operations (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Effective Income Tax Rate Continuing Operations Tax Rate Reconciliation [Line Items]
Federal	$ (5,918)	$ 11,787	$ 85,405
State and local	283	759	11,121
Foreign	200	2,182	3,565
Total current (benefit) provision	(5,435)	14,728	100,091
Federal	(39,650)	26,499	(20,699)
State and local	(1,908)	5,319	(516)
Foreign	187	194	72
Total deferred (benefit) provision	(41,371)	32,012	(21,143)
Total (benefit) provision for income taxes	$ (46,806)	$ 46,740	$ 78,948

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The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of enacted federal tax law to the domestic taxable Income or Loss from continuing operations.

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The component of income tax expense for the period representing amounts paid or payable (or refundable) as determined by applying the provisions of foreign enacted tax law to the foreign taxable Income or Loss from continuing operations.

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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.

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