Supplemental Oil and Gas Disclosures - Changes in Standardized Measure of Discounted Future Net Cash Flows (Details) - USD ($) $ in Thousands	2 Months Ended	10 Months Ended	12 Months Ended
	Dec. 31, 2016	Oct. 20, 2016	Dec. 31, 2015	Dec. 31, 2014
Changes in Standardized Measure of Discounted Future Net Cash Flows
Net changes in prices and production costs	$ 78,103
Net changes in future development costs	2,022
Sales of oil and natural gas, net	(27,292)
Extensions	102,087
Revisions of previous quantity estimates	102,623
Accretion of discount	5,832
Net change in income taxes	(48,206)
Changes in timing, other	(35,124)
Standardized measure, end of period	529,950
Predecessor
Changes in Standardized Measure of Discounted Future Net Cash Flows
Standardized measure, beginning of period	$ 349,905	$ 512,819	$ 1,873,361	$ 1,790,446
Net changes in prices and production costs		(113,313)	(960,245)	(190,256)
Net changes in future development costs		175	57,357	66,828
Sales of oil and natural gas, net		(116,043)	(232,630)	(536,362)
Extensions		29,871	38,550	1,094,606
Purchases of reserves in place			34,369
Divestiture of reserves			(77,445)	(390,264)
Revisions of previous quantity estimates		(22,194)	(1,174,997)	(205,233)
Previously estimated development costs incurred		29,975	198,564	160,663
Accretion of discount		42,735	238,639	206,783
Net change in income taxes			513,024	(230,401)
Changes in timing, other		(14,120)	4,272	106,551
Standardized measure, end of period		$ 349,905	$ 512,819	$ 1,873,361