Derivative instruments not designated as hedging instruments (paid) received from settlement of commodity contracts.

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4CC
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL109998890-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959

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- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open agreements to purchase or sell mineral resources, energy, and agricultural products at some future point held at each balance sheet date, that was included in earnings for the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

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Derivative Instruments (Derivative (losses) gains in the consolidated statements of operations) (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Mar. 21, 2017	Sep. 30, 2017	Sep. 30, 2018
Derivative Gains (Losses) [Line Items]
Change in fair value of commodity price derivatives	$ (16,804)	$ (22,236)		$ (19,232)	$ (55,822)
Settlements (paid) received on commodity price derivatives	(6,873)	6,788		15,143	(16,642)
Total derivative (losses) gains	$ (23,677)	$ (15,448)		$ (4,089)	$ (72,464)
Predecessor
Derivative Gains (Losses) [Line Items]
Change in fair value of commodity price derivatives			$ 46,721
Settlements (paid) received on commodity price derivatives			1,285
Total derivative (losses) gains			$ 48,006