Oil and Natural Gas Activities - Costs Incurred (Detail) - Predecessor - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Property acquisition costs | |||
| Proved properties | $ 390 | $ 1,192 | $ 3,496 |
| Unproved properties | 15,497 | 24,735 | 84,938 |
| Total acquisition costs | 15,887 | 25,927 | 88,434 |
| Development costs | 114,472 | 150,261 | 561,578 |
| Exploration costs | 19,055 | 33,091 | 90,146 |
| Total | $ 149,414 | $ 209,279 | $ 740,158 |