Income Taxes- Components of Income and Provision for (Benefit from) Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Components of income (loss) before provision for (benefit from) income taxes
United States									$ (272,326)	$ (645,465)	$ (10,638)
Foreign									(285,474)	(89,410)	(615,406)
Loss from continuing operations before provision for (benefit from) income taxes	$ (76,048)	$ (92,486)	$ (190,861)	$ (198,405)	$ (178,594)	$ (166,577)	$ (158,396)	$ (231,308)	(557,800)	(734,875)	(626,044)
Current taxes:
United States									25,623	2,853	0
Foreign									831	2,457	1,085
State									3,629	1,366	4,080
Total current taxes									30,083	6,676	5,165
Deferred taxes:
United States									497	244	0
Foreign									(355)	0	(127,587)
State									156	38	0
Total deferred taxes									298	282	(127,587)
Provision for (benefit from) income taxes	$ (1,379)	$ 1,330	$ 30,131	$ 299	$ 2,043	$ 3,419	$ 693	$ 803	$ 30,381	$ 6,958	$ (122,422)