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Jones Contribution and Refinancing Plans - Additional Information (Detail) shares in Millions | Aug. 03, 2018 USD ($) | Jul. 13, 2018 | May 09, 2018 USD ($) shares | Apr. 01, 2018 MBbls MMcf | Jul. 10, 2018 USD ($)
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Subsequent Event | 9¾% Senior Notes due 2026 |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Principal amount of notes issued | $ 850,000,000 |  |  |  |
Interest rate on debt instrument | 9.75% |  |  |  |
Debt instrument, issue price principal amount percentage | 95.988% |  |  |  |
Interest payment terms | payable on February 15 and August 15 |  |  |  |
Offering being held in escrow pending closing expected to occurred date | Aug. 14, 2018 |  |  |  |
New Bank Credit Facility | Subsequent Event |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Bank credit facility |  |  |  |  | $ 700,000,000
Tender Offer | Subsequent Event |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Tender offer commencement date |  | Jul. 13, 2018 |  |  |
Arkoma and Williston |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Approximate shares to be issued for oil and gas properties | shares |  |  | 88.6 |  |
Oil and gas properties estimated fair value |  |  | $ 620,000,000 |  |
Approximate ownership percentage of pro forma outstanding shares |  |  | 84.50% |  |
Effective date of acquisition of properties |  |  |  | Apr. 01, 2018 |
Estimated oil proved reserves | MBbls |  |  |  | 22,800 |
Estimated gas proved reserves | MMcf |  |  |  | 49,300 |

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