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Property, Plant and Equipment - Narrative (Details) $ in Millions |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 15, 2023 USD ($) | Sep. 15, 2023 CAD ($) | Aug. 31, 2022 USD ($) | Jun. 30, 2022 USD ($) | Dec. 31, 2024 USD ($) | Mar. 31, 2024 USD ($) | Sep. 30, 2022 USD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Impairment of assets |  |  |  |  |  |  |  | $ 62,900,000 |  |  |
Impairment of assets |  |  |  |  | $ 28,400,000 | $ 34,500,000 |  | 62,909,000 | $ 0 | $ 0 |
Total capitalized exploratory well costs |  |  |  |  | 72,055,000 |  |  | 72,055,000 | 49,118,000 | 171,860,000 | $ 179,481,000
Additions pending the determination of proved reserves |  |  |  |  |  |  |  | 49,408,000 | 48,000 | 33,440,000 |
Capitalized exploration well costs charged to expense |  |  |  |  |  |  |  | 26,471,000 | 40,605,000 | $ 33,146,000 |
Well costs incurred and expensed |  |  |  |  |  |  |  | 46,700,000 | 129,200,000 |  |
Exploratory well costs capitalized more than one year |  |  |  |  | 22,300,000 |  |  | 22,300,000 |  |  |
Mississippi Canyon 216 |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Well costs incurred and expensed |  |  |  |  |  |  |  | 27,600,000 |  |  |
Mississippi Canyon 387 |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Well costs incurred and expensed |  |  |  |  |  |  |  | 26,100,000 |  |  |
Walker Ridge 425 |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Well costs incurred and expensed |  |  |  |  |  |  |  |  | 82,000,000 |  |
Atwater Valley 138 |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Well costs incurred and expensed |  |  |  |  |  |  |  |  | $ 47,200,000 |  |
Lucius Field |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of field acquired |  |  | 3.37% |  |  |  |  |  |  |  |
Consideration transferred |  |  | $ 78,500,000 |  |  |  |  |  |  |  |
Kodak Field |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of field acquired |  |  |  | 11.00% |  |  |  |  |  |  |
Consideration transferred |  |  |  | $ 50,000,000.0 |  |  |  |  |  |  |
Discontinued Operations, Disposed of by Sale | Thunder Hawk field |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership sold |  |  |  |  |  |  | 62.50% |  |  |  |
Cash received from divestiture |  |  |  |  |  |  | $ 20,000,000.0 |  |  |  |
Closing adjustment |  |  |  |  |  |  | 23,100,000 |  |  |  |
Net payment |  |  |  |  |  |  | 3,100,000 |  |  |  |
Gain on sale |  |  |  |  |  |  | 17,900,000 |  |  |  |
Discontinued Operations, Disposed of by Sale | Thunder Hawk field | Buyer |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Impairment of assets |  |  |  |  |  |  | 47,900,000 |  |  |  |
Discontinued Operations, Disposed of by Sale | CA-2 Asset |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Gain on sale |  |  |  |  |  |  | 0 |  |  |  |
Contingent consideration value |  |  |  |  |  |  | $ 8,700,000 |  |  |  |
Canada |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of property, plant, and equipment |  | $ 139 |  |  |  |  |  |  |  |  |
Gain (loss) on sale of property plant equipment | $ 0 |  |  |  |  |  |  |  |  |  |
Exploratory well costs capitalized more than one year |  |  |  |  | 4,400,000 |  |  | 4,400,000 |  |  |
Vietnam |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Exploratory well costs capitalized more than one year |  |  |  |  | 15,100,000 |  |  | 15,100,000 |  |  |
Brunei |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |  |  |  |  |  |
Exploratory well costs capitalized more than one year |  |  |  |  | $ 2,700,000 |  |  | $ 2,700,000 |  |  |

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