Provision (Benefit) for Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Current
Federal	$ 9,619	$ 12,331	$ 87,543
State	6,880	5,056	10,804
Foreign	(30)
Current Income Tax Expense (Benefit), Total	16,469	17,387	98,347
Deferred
Federal	12,865	(16,371)	(5,095)
State	1,931	1,380	(31)
Foreign	(19)
Deferred tax expense (benefit)	14,777	(14,991)	(4,597)
Income tax provision	$ 31,246	$ 2,396	$ 93,221

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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