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Commitments and Contingencies - Additional Information (Detail) $ in Thousands, ft³ in Millions, bbl in Millions |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | ---
Sep. 28, 2020 USD ($) | Sep. 14, 2020 USD ($) | Nov. 01, 2019 USD ($) | Mar. 23, 2017 USD ($) | Dec. 31, 2020 USD ($) bbl ft³
Surety Bond |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Off-balance sheet commitments |  |  |  |  | $ 49,000
Revolving credit facility |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Off-balance sheet commitments |  |  |  |  | $ 6,800
Volume Commitment Agreement |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Term of commitment agreements |  |  |  |  | 10 years
Volume Commitment Agreement | Crude oil |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Minimum quantity of delivery | bbl |  |  |  |  | 46.6
Volume Commitment Agreement | Natural Gas Liquids |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Minimum quantity of delivery | bbl |  |  |  |  | 28.1
Volume Commitment Agreement | Natural gas |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Minimum quantity of delivery | ft³ |  |  |  |  | 704.1
Volume Commitment Agreement | Produced Water and Fresh Water |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Minimum quantity of delivery | bbl |  |  |  |  | 8.7
Volume Commitment Agreement Exception |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Term of commitment agreements |  |  |  |  | 24 years
Continuous Development Agreement |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Term of commitment agreements |  |  |  |  | 8 years
Additional term of commitment agreements |  |  |  |  | 5 years
Non-performance fees |  |  |  |  | $ 100,000
Pending Litigation | Mirada Litigation |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Damages sought (in excess of) |  |  | $ 200,000 | $ 100,000 |
Settled Litigation | Mirada Litigation |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Amount proposed to be paid under Settlement Agreement | $ 42,800 |  |  |  |
Amount due upon effective plan date of the Plan | 20,000 |  |  |  |
Litigation liability | $ 22,800 |  |  |  |
Settled Litigation | Solomon Litigation |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |
Amount due upon effective plan date of the Plan |  | $ 15 |  |  |

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