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Commitments and contingencies (Details) - USD ($) $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Oct. 24, 2022 | Dec. 31, 2023 | Dec. 31, 2022
Related party transactions |  |  |
Other liabilities |  | $ 1,204 | $ 1,523
Management |  |  |
Related party transactions |  |  |
Oil and gas management agreement, renewal term | 1 year |  |
Related Party | Grey Rock Administration, LLC (the Manager) |  |  |
Related party transactions |  |  |
Other liabilities | $ 10,000 |  |
Oil and gas management agreement, renewal term |  | 1 year |

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