Income Taxes - Provision/(Benefit) For Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Current:
U.S. Federal	$ (921)	$ 649	$ (24,688)
Foreign	41,244	52,783	47,044
State and local	932	1,812	3,849
Total current	41,255	55,244	26,205
Deferred:
U.S. Federal	9,727	(9,431)	26,972
Foreign	(35,318)	(30,368)	(6,267)
State and local	(2,849)	(884)	(2,433)
Total deferred	(28,440)	(40,683)	18,272
Taxes on income	$ 12,815	$ 14,561	$ 44,477