Supplemental Selected Quarterly Financial Data (Unaudited) - Schedule of Supplemental Selected Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ 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
Quarterly Financial Information Disclosure [Abstract]
Oil and gas revenues	$ 8,231	$ 13,033	$ 14,958	$ 11,242	$ 12,018	$ 11,957	$ 12,059	$ 11,577	$ 47,464	$ 47,611	$ 29,634
Other revenues	26	47	1,775	78	90	98	86	109
Operating expenses	152,874	15,675	16,452	13,618	31,407	10,204	9,191	7,777	198,619	58,580	49,643
Income (loss) from operations	(144,617)	(2,595)	281	(2,298)	(19,299)	1,851	2,954	3,909	(149,229)	(10,586)	(19,700)
Other income (expense), net	1,733	5,124	(1,324)	599	4,086	2,363	(1,424)	(1,169)	423	62	16
Income tax benefit (expense)	26,373	(811)	295	585	(22,105)				26,442	(22,105)
Net income (loss)	$ (116,511)	$ 1,718	$ (748)	$ (1,114)	$ (37,318)	$ 4,214	$ 1,530	$ 2,740	$ (116,655)	$ (28,834)	$ (19,875)
Basic and diluted net (loss) income per share	$ (8.42)	$ 0.12	$ (0.05)	$ (0.08)	$ (3.83)	$ 0.46	$ 0.17	$ 0.30