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ASSET UNDER DEVELOPMENT - Narrative (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2020 | Apr. 30, 2019 | Mar. 31, 2019 | Feb. 28, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Capitalized Costs Relating to Oil and Gas Producing Activities, by Geographic Area [Line Items] |  |  |  |  |  |  |
Contractual obligation |  |  |  |  | $ 715,496 |  |
Proceeds from short-term and long-term debt |  |  |  |  | 580,268 | $ 729,707 | $ 524,278
Gimi Conversion |  |  |  |  |  |  |
Capitalized Costs Relating to Oil and Gas Producing Activities, by Geographic Area [Line Items] |  |  |  |  |  |  |
Contracted revenue, period (in years) |  |  |  | 20 years |  |  |
Revised project schedule extension (in months) | 11 months |  |  |  |  |  |
Contractual obligation |  |  |  |  | $ 1,600,000 |  |
LNG Croatia Conversion |  |  |  |  |  |  |
Capitalized Costs Relating to Oil and Gas Producing Activities, by Geographic Area [Line Items] |  |  |  |  |  |  |
Contracted revenue, period (in years) |  |  | 10 years |  |  |  |
Gimi 700 million Facility | Gimi Conversion |  |  |  |  |  |  |
Capitalized Costs Relating to Oil and Gas Producing Activities, by Geographic Area [Line Items] |  |  |  |  |  |  |
Face amount |  | $ 700,000 |  |  |  |  |
CSSC VIE Loan | LNG Croatia Conversion |  |  |  |  |  |  |
Capitalized Costs Relating to Oil and Gas Producing Activities, by Geographic Area [Line Items] |  |  |  |  |  |  |
Proceeds from short-term and long-term debt |  |  |  |  |  | $ 124,700 |
Keppel Capital | Gimi Conversion |  |  |  |  |  |  |
Capitalized Costs Relating to Oil and Gas Producing Activities, by Geographic Area [Line Items] |  |  |  |  |  |  |
Non-controlling contractual obligation, percentage (in percent) |  | 30.00% |  |  |  |  |

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