Income Taxes - Provision (Benefit) for Income Tax for Continuing Operations (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current:
Federal	$ 67,921	$ 6,694	$ 2,823
State and local	9,812	2,053	3,716
Foreign	38,082	24,486	10,731
Current income tax provision (benefit) for continuing operations, Total	115,815	33,233	17,270
Deferred:
Federal	(4,225)	(139,697)	3,921
State and local	(573)	(28,893)
Foreign	5,007	(100)	(1,134)
Deferred income tax provision (benefit) for continuing operations, Total	209	(168,690)	2,787
Income tax expense	$ 116,024	$ (135,457)	$ 20,057