Condensed Consolidating Financial Information - Condensed Consolidating Statements of Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Net (loss) income		$ (240,370)	$ (157,296)	$ (339,776)	$ (242,267)	$ (830,869)	$ (388,209)	$ (31,325)	$ 25,519	$ (979,709)	$ (1,224,884)	$ 247,403
Foreign currency translation adjustment	[1]									2,119	(28,502)	(16,894)
Other comprehensive income (loss)										2,119	(28,502)	(16,894)
Comprehensive (loss) income										(977,590)	(1,253,386)	230,509
Parent
Condensed Financial Statements, Captions [Line Items]
Net (loss) income										(979,709)	(1,224,884)	247,403
Foreign currency translation adjustment										2,119	(28,502)	(16,894)
Other comprehensive income (loss)										2,119	(28,502)	(16,894)
Comprehensive (loss) income										(977,590)	(1,253,386)	230,509
Guarantors
Condensed Financial Statements, Captions [Line Items]
Net (loss) income										2,999	379	529
Foreign currency translation adjustment										778	0	0
Other comprehensive income (loss)										778	0	0
Comprehensive (loss) income										3,777	379	529
Non-Guarantor
Condensed Financial Statements, Captions [Line Items]
Net (loss) income										(25,153)	(115,564)	(13,157)
Foreign currency translation adjustment										1,341	(28,502)	(16,894)
Other comprehensive income (loss)										1,341	(28,502)	(16,894)
Comprehensive (loss) income										(23,812)	(144,066)	(30,051)
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net (loss) income										22,154	115,185	12,628
Foreign currency translation adjustment										(2,119)	28,502	16,894
Other comprehensive income (loss)										(2,119)	28,502	16,894
Comprehensive (loss) income										$ 20,035	$ 143,687	$ 29,522

[1] Net of $1.3 million in taxes for the year ended December 31, 2016. No taxes were recorded for the years ended December 31, 2015 and 2014.