Disclosures about Oil and Natural Gas Activities (Unaudited) - Prices Used in Determining Future Net Revenues (Detail) - Predecessor |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2016
$ / bbl
$ / Mcf
|
Dec. 31, 2015
$ / bbl
$ / Mcf
|
Dec. 31, 2014
$ / bbl
$ / Mcf
|
|
| Oil [Member] | |||
| Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Line Items] | |||
| Price before field differentials used in determining future net revenues | 42.75 | 50.28 | 94.99 |
| Natural Gas [Member] | |||
| Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Line Items] | |||
| Price before field differentials used in determining future net revenues | $ / Mcf | 2.49 | 2.58 | 4.35 |
| Natural Gas Liquids [Member] | |||
| Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves [Line Items] | |||
| Price before field differentials used in determining future net revenues | 13.47 | 15.84 | 36.10 |