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Derivatives - Narrative (Details) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 USD ($) institution | Sep. 30, 2016 USD ($) | Sep. 30, 2017 USD ($) institution | Sep. 30, 2016 USD ($)
Successor |  |  |  |
Derivative Instruments and Hedging Activities Disclosure |  |  |  |
Loss (gain) on derivative contracts | $ 11,702 |  | $ (46,024) |
Cash receipts, upon settlement of derivative contract |  |  | $ 7,700 |
Number of counterparties to open derivative contracts | institution | 7 |  | 7 |
Successor | Commodity Derivatives |  |  |  |
Derivative Instruments and Hedging Activities Disclosure |  |  |  |
Loss (gain) on derivative contracts | $ 11,700 |  | $ (46,000) |
Cash receipts, upon settlement of derivative contract | $ 5,000 |  | $ 7,700 |
Predecessor |  |  |  |
Derivative Instruments and Hedging Activities Disclosure |  |  |  |
Loss (gain) on derivative contracts |  | $ (338) |  | $ 4,823
Cash receipts, upon settlement of derivative contract |  |  |  | 72,608
Predecessor | Commodity Derivatives |  |  |  |
Derivative Instruments and Hedging Activities Disclosure |  |  |  |
Loss (gain) on derivative contracts |  | (300) |  | 4,800
Cash receipts, upon settlement of derivative contract |  | 14,600 |  | $ 72,600
Cash receipts, upon early settlement of derivative contract |  | $ 17,900 |  |

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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/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=84234895&loc=SL5624171-113959 + Details
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