Accounting Policies - Schedule of Oil and Gas Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Disaggregation of Revenue [Line Items]
Provisional sales contracts	$ (107,014)	$ 2,792	$ (369,306)	$ 10,675
Oil and gas revenue	410,059	310,959	1,388,040	993,729
Oil and gas revenue
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	383,197	311,923	1,423,283	1,002,300
Provisional sales contracts	26,862	(964)	(35,243)	(8,571)
Oil and gas revenue	410,059	310,959	1,388,040	993,729
Ghana \| Oil and gas revenue
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	218,149	143,134	834,181	508,818
Equatorial Guinea \| Oil and gas revenue
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	0	40,753	71,951	137,631
Mauritania\|Senegal \| Oil and gas revenue
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	66,394	39,343	212,256	62,279
Gulf of America \| Oil and gas revenue
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	$ 98,654	$ 88,693	$ 304,895	$ 293,572

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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