Supplemental Oil and Gas Disclosures - Estimated Quantities of Proved Oil and Natural Gas Reserves (Details)	2 Months Ended	10 Months Ended	12 Months Ended
	Dec. 31, 2016 MBoe MMcf MBbls	Oct. 20, 2016 MBoe MMcf MBbls	Dec. 31, 2015 MBoe MMcf MBbls	Dec. 31, 2014 MBoe MMcf MBbls
Proved Reserves, Total
Beginning Balance | MBoe	65,318
Revision of previous estimates | MBoe	55,172
Extensions, discoveries and other additions | MBoe	58,296
Production | MBoe	(1,798)
Net proved reserves | MBoe	176,988
Proved developed reserves | MBoe	69,622
Proved undeveloped reserves | MBoe	107,366
Oil
Proved Reserves
Beginning Balance	20,226
Revision of previous estimates	19,137
Extensions, discoveries and other additions	22,571
Production	(544)
Net proved reserves	61,390
Proved developed reserves	19,698
Proved undeveloped reserves	41,692
NGL
Proved Reserves
Beginning Balance	14,694
Revision of previous estimates	11,421
Extensions, discoveries and other additions	11,186
Production	(429)
Net proved reserves	36,872
Proved developed reserves	16,349
Proved undeveloped reserves	20,523
Gas
Proved Reserves
Beginning Balance | MMcf	182,383
Revision of previous estimates | MMcf	147,688
Extensions, discoveries and other additions | MMcf	147,236
Production | MMcf	(4,948)
Net proved reserves | MMcf	472,359
Proved developed reserves | MMcf	201,454
Proved undeveloped reserves | MMcf	270,905
Predecessor
Proved Reserves, Total
Beginning Balance | MBoe		73,540	153,744	127,755
Revision of previous estimates | MBoe		(3,706)	(75,700)	(22,925)
Extensions, discoveries and other additions | MBoe		4,249	6,398	77,035
Sales of reserves in place | MBoe			(5,019)	(16,391)
Purchases of reserves in place | MBoe			6,118
Production | MBoe		(8,765)	(12,001)	(11,730)
Net proved reserves | MBoe		65,318	73,540	153,744
Proved developed reserves | MBoe		65,318	69,110	73,620
Proved undeveloped reserves | MBoe			4,430	80,124
Predecessor | Oil
Proved Reserves
Beginning Balance		24,713	58,242	54,899
Revision of previous estimates		(3,089)	(30,490)	(11,563)
Extensions, discoveries and other additions		1,566	2,189	30,232
Sales of reserves in place			(2,871)	(10,182)
Purchases of reserves in place			2,437
Production		(2,964)	(4,794)	(5,144)
Net proved reserves		20,226	24,713	58,242
Proved developed reserves		20,226	23,006	27,181
Proved undeveloped reserves			1,707	31,061
Predecessor | NGL
Proved Reserves
Beginning Balance		16,245	32,528	26,156
Revision of previous estimates		(459)	(15,495)	(4,444)
Extensions, discoveries and other additions		840	1,371	15,414
Sales of reserves in place			(843)	(2,181)
Purchases of reserves in place			1,157
Production		(1,932)	(2,473)	(2,417)
Net proved reserves		14,694	16,245	32,528
Proved developed reserves		14,694	15,376	16,443
Proved undeveloped reserves			869	16,085
Predecessor | Gas
Proved Reserves
Beginning Balance | MMcf		195,492	377,845	280,198
Revision of previous estimates | MMcf		(946)	(178,287)	(41,510)
Extensions, discoveries and other additions | MMcf		11,052	17,026	188,336
Sales of reserves in place | MMcf			(7,834)	(24,166)
Purchases of reserves in place | MMcf			15,145
Production | MMcf		(23,215)	(28,403)	(25,013)
Net proved reserves | MMcf		182,383	195,492	377,845
Proved developed reserves | MMcf		182,383	184,365	179,972
Proved undeveloped reserves | MMcf			11,127	197,873