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Other Commitments and Contingencies - Narrative (Details) $ in Thousands | 1 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Apr. 30, 2021 shares | Sep. 30, 2021 USD ($) tax_lease | Dec. 31, 2003 tax_lease | Dec. 31, 2020 USD ($)
Loss Contingencies [Line Items] |  |  |  |
Number of tax leases |  |  | 6 |
Number of tax leases terminated |  | 6 |  |
Number of tax leases remaining |  | 6 |  |
Liability for UK tax leases | $ |  | $ 71,432 |  | $ 0
Revolving Credit Facility | LIBOR |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Debt instrument, basis spread on variable rate (in percentage) | 4.50% |  |  |
New Fortress Energy (NFE) | Revolving Credit Facility |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Number of common units pledged as security (in shares) | shares | 18,627,451 |  |  |

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