Accounting Policies - Schedule of Oil and Gas Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Provisional sales contracts	$ 40,683	$ 15,469	$ (262,292)	$ 7,883
Oil and gas revenue	607,253	392,635	977,981	682,770
Oil and gas revenue
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	618,379	399,415	1,040,086	690,377
Provisional sales contracts	(11,126)	(6,780)	(62,105)	(7,607)
Oil and gas revenue	607,253	392,635	977,981	682,770
Ghana \| Oil and gas revenue
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	365,880	212,880	616,032	365,685
Equatorial Guinea \| Oil and gas revenue
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	47,464	63,196	71,951	96,878
Mauritania\|Senegal \| Oil and gas revenue
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	93,596	20,239	145,862	22,936
Gulf of America \| Oil and gas revenue
Disaggregation of Revenue [Line Items]
Total revenues from contracts with customers	$ 111,439	$ 103,100	$ 206,241	$ 204,878

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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- Definition

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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- Definition

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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