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Components of Provision for Benefit from Income Taxes (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Schedule of Components of Income Before Income Tax Expense (Benefit) [Line Items]      
Federal $ 2,253 $ 2,766 $ 289
State and local 1,879 1,439 1,355
Foreign 1,858 1,641 1,624
Current income tax expense, total 5,990 5,846 3,268
Federal (6,055) 7,398 (213,796)
State and local (3,891) (2,957) (16,377)
Foreign 25 (78) (404)
Deferred income tax expense (benefit), total (9,921) 4,363 (230,577)
Provision for (benefit from) income taxes $ (3,931) $ 10,209 $ (227,309)