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v3.19.3.a.u2

Fresh-Start Accounting - Narrative (Details) $ in Thousands | Feb. 28, 2017 USD ($)
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Reorganizations [Abstract] |
Existing voting ownership interest, percentage of shares (less than) | 50.00%
Enterprise value | $ 1,278,527
Proved and Unproved Reserves | Discount Rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.10
Proved and Unproved Reserves | Forward Curve Pricing |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.020

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