Income Taxes (Income Tax Expense (Benefit) Attributable to Discontinued Operations) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Abstract]
U.S. state	$ (4,354)	$ (538)	$ (1,300)
Foreign	(39,543)	(24,948)	(18,757)
Total current tax (provision) benefit	(43,897)	(25,486)	(20,057)
U.S. federal	(227,385)	42,155	(48,879)
U.S. state	(1,836)	3
Foreign	15,168	(16,402)	(16,591)
Total deferred tax (provision) benefit	(214,053)	25,756	(65,470)
Income tax (provision) benefit	$ (257,950)	$ 270	$ (85,527)