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Commitments and Contingencies (Narrative) (Details) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2021 USD ($) item | Aug. 31, 2020 USD ($) km² | Jun. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) | Sep. 30, 2021 USD ($) item | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($)
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Abandonment funding |  |  |  | $ 22,281 | $ 22,281 |  |  | $ 12,453 | $ 11,885
Foreign currency gain on abandonment funding |  |  |  | (600) | (1,100) |  |  |  |
Agreement prepayment |  |  |  |  | (1,176) |  |  |  |
Agreement prepayment, recoverable amount |  |  |  | 6,000 | 6,000 |  |  |  |
Etame Marine Block [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Estimated abandonment costs |  |  |  | 36,400 | 36,400 |  |  |  |
Abandonment funding |  |  |  | 22,300 | $ 22,300 |  |  |  |
Payment of joint venture audit settlement |  |  | $ 800 |  |  |  |  |  |
Area of three-dimensional seismic data | km² |  | 1,000 |  |  |  |  |  |  |
Etame Marine Block [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Expected cost of data acquisition |  | $ 2,200 |  |  |  |  |  |  |
Etame Marine Block [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Expected cost of data acquisition |  | $ 3,400 |  |  |  |  |  |  |
FPSO Charter [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Number of extensions | item |  |  |  |  | 2 |  |  |  |
Period of charter |  |  |  |  | 1 year |  |  |  |
Guarantee liability |  |  |  | 100 | $ 100 |  |  | $ 400 |
Percentage of share in charter payment |  |  |  |  | 58.80% |  |  |  |
Share in charter payment, approximate annual amount |  |  |  |  | $ 19,400 |  |  |  |
Consortium [Member] | Etame Marine Block [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Estimated abandonment costs |  |  |  | 61,800 | 61,800 |  |  |  |
Abandonment funding |  |  |  | 37,900 | 37,900 |  |  |  |
Consortium [Member] | FPSO Charter [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Maximum exposure |  |  |  | $ 32,100 | $ 32,100 |  |  |  |
Scenario, Forecast [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Agreement prepayment |  |  |  |  |  | $ 3,200 | $ 1,300 |  |
Estimated field level capital conversion | $ 5,000 |  |  |  |  |  | 5,000 |  |
Scenario, Forecast [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Estimated field level capital conversion |  |  |  |  |  | 26,000 |  |  |
Scenario, Forecast [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Estimated field level capital conversion |  |  |  |  |  | 32,000 |  |  |
Scenario, Forecast [Member] | Consortium [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Agreement prepayment |  |  |  |  |  | 5,000 | $ 2,000 |  |
Scenario, Forecast [Member] | Consortium [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Estimated field level capital conversion |  |  |  |  |  | 40,000 |  |  |
Scenario, Forecast [Member] | Consortium [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Estimated field level capital conversion |  |  |  |  |  | $ 50,000 |  |  |
Scenario, Forecast [Member] | Borr Drilling [Member] |  |  |  |  |  |  |  |  |
Commitments And Contingencies [Line Items] |  |  |  |  |  |  |  |  |
Number Of Drilled Wells Required By Agreement | item | 3 |  |  |  |  |  |  |  |

X
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