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Asset Under Development (Narrative) (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jan. 31, 2020 | Apr. 30, 2019 | Feb. 28, 2019 | Mar. 31, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Capitalized Costs Relating to Oil and Gas Producing Activities, by Geographic Area [Line Items] |  |  |  |  |  |
Contractual obligation |  |  |  |  | $ 852,066,000 |
Proceeds from short-term and long-term debt |  |  |  |  | 511,375,000 | $ 14,824,000
Gimi Conversion |  |  |  |  |  |
Capitalized Costs Relating to Oil and Gas Producing Activities, by Geographic Area [Line Items] |  |  |  |  |  |
Term of charter |  |  | 20 years |  |  |
Contractual obligation |  | $ 1,300,000,000 |  |  |  |
Gimi Conversion | Gimi $700 million facility |  |  |  |  |  |
Capitalized Costs Relating to Oil and Gas Producing Activities, by Geographic Area [Line Items] |  |  |  |  |  |
Debt instrument, face amount |  | $ 700,000,000 |  |  |  |
Gimi Conversion | Keppel Capital |  |  |  |  |  |
Capitalized Costs Relating to Oil and Gas Producing Activities, by Geographic Area [Line Items] |  |  |  |  |  |
Long-term purchase commitment, percentage |  | 30.00% |  |  |  |
Golar Viking Conversion |  |  |  |  |  |
Capitalized Costs Relating to Oil and Gas Producing Activities, by Geographic Area [Line Items] |  |  |  |  |  |
Term of charter |  |  |  | 10 years |  |
Contractual obligation |  |  |  |  | 42,000,000.0 |
Golar Viking Conversion | CSSC VIE loan |  |  |  |  |  |
Capitalized Costs Relating to Oil and Gas Producing Activities, by Geographic Area [Line Items] |  |  |  |  |  |
Debt instrument, face amount |  |  |  |  | 75,000,000.0 |
Proceeds from short-term and long-term debt | $ 56,000,000.0 |  |  |  | $ 33,400,000 |

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