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Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Components of income (loss) before provision for (benefit from) income taxes
United States									$ (645,465)	$ (10,638)	$ 231,542
Foreign									(89,410)	(615,406)	(199,546)
(Loss) income from continuing operations before provision for (benefit from) income taxes	(178,594)	(166,577)	(158,396)	(231,308)	(19,568)	(118,900)	(53,793)	(433,783)	(734,875)	(626,044)	31,996
Current taxes:
United States									2,853us-gaap_CurrentFederalTaxExpenseBenefit	0us-gaap_CurrentFederalTaxExpenseBenefit	0us-gaap_CurrentFederalTaxExpenseBenefit
Foreign									2,457us-gaap_CurrentForeignTaxExpenseBenefit	1,085us-gaap_CurrentForeignTaxExpenseBenefit	(1,865)us-gaap_CurrentForeignTaxExpenseBenefit
State									1,366	4,080	1,590
Total current taxes									6,676us-gaap_CurrentIncomeTaxExpenseBenefit	5,165us-gaap_CurrentIncomeTaxExpenseBenefit	(275)us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred taxes:
United States									244	0	0
Foreign									0	(127,587)	0
State									38	0	0
Total deferred taxes									282us-gaap_DeferredIncomeTaxExpenseBenefit	(127,587)us-gaap_DeferredIncomeTaxExpenseBenefit	0us-gaap_DeferredIncomeTaxExpenseBenefit
Provision for (benefit from) income taxes	$ 2,043us-gaap_IncomeTaxExpenseBenefit	$ 3,419us-gaap_IncomeTaxExpenseBenefit	$ 693us-gaap_IncomeTaxExpenseBenefit	$ 803us-gaap_IncomeTaxExpenseBenefit	$ 1,352us-gaap_IncomeTaxExpenseBenefit	$ 2,555us-gaap_IncomeTaxExpenseBenefit	$ 558us-gaap_IncomeTaxExpenseBenefit	$ (126,887)us-gaap_IncomeTaxExpenseBenefit	$ 6,958us-gaap_IncomeTaxExpenseBenefit	$ (122,422)us-gaap_IncomeTaxExpenseBenefit	$ (275)us-gaap_IncomeTaxExpenseBenefit