Income Taxes - 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
Current:
Federal	$ 10,400	$ (2,850)	$ 176
State	1,717	336	1,521
Foreign	20,141	13,601	(1,243)
Total current taxes	32,258	11,087	454
Deferred:
Federal	(50,645)	(7,240)	3,494
State	(157)	211	344
Foreign	(2,416)	(280)	(1,122)
Total deferred taxes	(53,218)	(7,309)	2,716
Total	$ (20,960)	$ 3,778	$ 3,170