Income Taxes (Details 2) - 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
Income Tax Expense Benefit Continuing Operations Income Tax Reconciliation Abstract
Income tax provision (benefit) computed at the U.S. statutory rate									$ (1,124,069)	$ 187,959	$ 81,978
State income tax provision net of federal benefit									(12,998)	8,023	1,329
Valuation allowance									1,147,619	(199,038)	(81,923)
Tax Effect Of Rate Change									12,898	15,457	(2,871)
Foreign tax rate differential									(26,740)	(16,314)	(3,508)
Other, net									(1,114)	(1,911)	1,379
Total income tax (benefit)	$ (999)	$ (1,133)	$ (250)	$ (2,022)	$ (3,901)	$ (1,383)	$ (544)	$ 4	$ (4,404)	$ (5,824)	$ (3,616)