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Acquisitions and Divestitures of Oil and Gas Properties - Divestitures (Details) $ in Thousands		1 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended
	Nov. 01, 2018 USD ($) well shares	Jan. 31, 2016 USD ($)	Dec. 31, 2016 USD ($)	Oct. 01, 2016 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Successor
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
ARO liabilities settled or disposed			$ 540		$ 31,967	$ 11,308
Payments for contract settlement			0		0	0
Loss on termination of the gathering contract			0		0	0
Revisions in estimated cash flows			$ (12,397)		(870)	28,565
Predecessor
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
ARO liabilities settled or disposed				$ 36,979
Payments for contract settlement				11,000
Loss on termination of the gathering contract				90,184
Revisions in estimated cash flows				$ 0
Predecessor | WTO Properties | Treating Agreement
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revisions in estimated cash flows		$ 34,100
Disposal Group, Not Discontinued Operations | Successor | Central Basin Platform
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of common units sold (in shares) | shares	13,125,000
Percent of common equity sold	25.00%
Proceeds from sale of oil and natural gas properties	$ 14,500
ARO liabilities settled or disposed	$ 26,900				$ 26,900
Number of wells sold | well	1,066
Disposal Group, Not Discontinued Operations | Successor | Oil and Gas Properties
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of oil and natural gas properties						$ 17,100
Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations | Predecessor | WTO Properties
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Payments for contract settlement		$ 11,000
Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations | Predecessor | WTO Properties | Treating Agreement
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Contract agreement, term		30 years
Cumulative shortfall accrued		$ 111,900
Loss on termination of the gathering contract		$ 89,100

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