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Supplemental Information on Oil and Natural Gas Producing Activities (Unaudited) - Costs Incurred in Oil and Natural Gas Property Acquisition, Exploration and Development (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2016 | Oct. 01, 2016 | Dec. 31, 2018 | Dec. 31, 2017
Successor |  |  |  |
Acquisitions of properties |  |  |  |
Proved | $ 5,142 |  | $ 30,641 | $ 7,092
Unproved | 5,491 |  | 4,197 | 91,139
Exploration | 0 |  | 1,940 | 8,850
Development | 27,429 |  | 158,361 | 187,264
Total cost incurred | $ 38,062 |  | $ 195,139 | $ 294,345
Predecessor |  |  |  |
Acquisitions of properties |  |  |  |
Proved |  | $ 3,897 |  |
Unproved |  | 1,899 |  |
Exploration |  | 1,234 |  |
Development |  | 149,924 |  |
Total cost incurred |  | $ 156,954 |  |

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