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Supplemental Information About Oil & Natural Gas Producing Activities (Unaudited) - Narrative (Details) - Oil, Natural Gas, and Natural Gas Liquids - MBoe MBoe in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2016 | Oct. 10, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Successor |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |
Proved reserves, net period increase (decrease), percent |  |  | 104.00% |  |
Proved reserves | 82,959 | 40,730 | 82,959 |  |
Purchases of reserves in place | 28,801 |  |  |  |
Extensions | 10,324 |  |  |  |
Improved results | 3,908 |  |  |  |
Production | 805 |  |  |  |
Predecessor |  |  |  |  |
Reserve Quantities [Line Items] |  |  |  |  |
Proved reserves, net period increase (decrease), percent |  | 25.00% |  | 25.00% |
Proved reserves |  |  |  | 32,457 | 25,970
Purchases of reserves in place |  | 2,200 |  | 1,275 |
Extensions |  | 7,692 |  | 12,864 | 21,012
Production |  | 2,280 |  |  |
Revisions of previous estimates |  | 660 |  | (4,981) | 265
Revisions of previous estimates, increase (decrease) in commodity prices |  |  |  | (6,794) |
Divestitures of reserves in place |  |  |  |  | 13,706

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