Income Taxes (Details 3) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current:
U.S. federal	$ 25,802	$ 27,649	$ (137,847)
Outside the U.S.	82,950	43,732	54,779
State	34,242	38,321	5,859
Total	142,994	109,702	(77,209)
Deferred:
U.S. federal	(78,556)	41,540	97,114
Outside the U.S.	(18,479)	4,413	13,607
State	(13,331)	(13,050)	3,438
Total	(110,366)	32,903	114,159
Total income tax expense (benefit)	$ 32,628	$ 142,605	$ 36,950