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Property, Plant and Equipment - Narrative (Details)	3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2016 USD ($) $ / Boe	Oct. 01, 2016 USD ($) $ / Boe	Dec. 31, 2017 USD ($) $ / Boe	Dec. 31, 2015 USD ($) $ / Boe
Predecessor
Property, Plant and Equipment [Line Items]
Full cost ceiling impairments		$ 657,392,000		$ 4,473,787,000
Average depreciation and depletion rate (usd per Boe) | $ / Boe		6.05		10.81
Successor
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 259,713,000		$ 241,867,000
Full cost ceiling impairments	$ 319,087,000		$ 0
Average depreciation and depletion rate (usd per Boe) | $ / Boe	8.31		7.92
Expected completion of evaluation activities on majority of unproved properties			10 years
Assets held for sale			$ 10,600,000
Successor | Drilling And Oil Field Services Assets
Property, Plant and Equipment [Line Items]
Assets held for sale			6,900,000
NRV of assets held-for-sale			2,900,000
Impairment recognized			4,000,000.0
Assets disposed of			1,700,000
Successor | Property Located in Oklahoma City, OK
Property, Plant and Equipment [Line Items]
Assets held for sale			$ 9,300,000

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The excess of unamortized costs capitalized within a cost center, less related deferred income taxes, over the cost center ceiling limitation, which is charged to expense for oil and gas producing companies that use full cost method of accounting for investments in oil and gas producing properties.

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