Other Comprehensive Income Other Comprehensive Income (Loss) (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net income (loss)	$ (517,082)	$ 27,639	$ (455,526)	$ 78,200
Foreign currency translation adjustment, net	(80,183)	125,169	43,361	(87,330)
Net unrealized gain (loss) on derivative instruments, designated as cash flow hedges, net	2,086	(378)	1,922	(2,920)
Net unrealized gain (loss) on a nonderivative net investment hedging instrument, net	408	(12,149)	(8,854)	12,203
Net hedging (gain) loss reclassified into net income (loss), net	(176)	1,677	2,598	5,874
Pension plan benefits liability adjustment, net	22	2	(506)	(683)
Total comprehensive income (loss)	(594,925)	141,960	(417,005)	5,344
Income Tax (Provision) Benefit Related To OCI (Abstract)
Foreign currency translation adjustment	611	(750)	199	(1,335)
Net unrealized gain (loss) on derivative instruments designated as cash flow hedges	(1,274)	225	(1,132)	1,805
Net unrealized gain (loss) on a nonderivative net investment hedging instrument	(237)	7,554	5,424	(7,592)
Net hedging (gain) loss reclassified into net income (loss)	101	(1,038)	(1,602)	(3,651)
Pension plan benefits liability adjustment	(10)	(1)	207	220
Total income tax (provision) benefit on other comprehensive income (loss)	(809)	5,990	3,096	(10,553)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income (loss), net of tax	$ 3,547		$ 3,547		$ (34,974)