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EQUITY METHOD INVESTMENTS - Additional Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Nov. 08, 2018 | Oct. 01, 2018 | Dec. 31, 2021 | Dec. 31, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2011 | Mar. 31, 2006
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Equity method investments |  |  | $ 52,215 | $ 44,385 |  | $ 32,816 |  |
Common shares, par value (in dollars per share) |  |  | $ 1.00 | $ 1.00 |  |  |  |
Avenir LNG Limited (“Avenir”) |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Ownership percentage (in percent) |  | 25.00% | 23.50% |  |  |  |  |
Avenir LNG Limited (“Avenir”) |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Ownership percentage (in percent) |  |  | 23.50% | 23.10% |  |  |  |
Equity method investments |  |  | $ 47,913 | $ 39,984 |  |  |  |
Ownership percentage after transaction (in percent) | 22.50% |  |  |  |  |  |  |
Interest costs capitalized |  |  | $ 0 | $ 900 |  |  |  |
Avenir LNG Limited (“Avenir”) | Private Placement |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Equity method investments |  | $ 24,800 |  |  |  |  |  |
Equity shortfall notice |  |  |  |  | $ 45,000 |  |  |
Number of subsidiary shares sold in transaction (in shares) | 110,000 |  | 11,000 |  |  |  |  |
Common shares, par value (in dollars per share) | $ 1.00 |  |  |  | $ 1.00 |  |  |
Shares subscribed but unissued | 24,750 |  |  |  |  |  |  |
Avenir LNG Limited (“Avenir”) | Stolt-Nielsen Ltd and Höegh LNG Holdings Ltd |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Investment company, committed capital |  | $ 182,000 |  |  |  |  |  |
Avenir LNG Limited (“Avenir”) | Stolt-Nielsen Limited |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Ownership percentage after transaction (in percent) | 45.00% | 50.00% |  |  |  |  |  |
Shares subscribed but unissued | 49,500 |  |  |  |  |  |  |
Avenir LNG Limited (“Avenir”) | Hoegh LNG Holdings Limited |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Ownership percentage after transaction (in percent) | 22.50% | 25.00% |  |  |  |  |  |
Shares subscribed but unissued | 24,750 |  |  |  |  |  |  |
Avenir LNG |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Equity method investments |  |  | $ 42,750 |  |  |  |  |
Aggregate cost |  |  | $ 18,000 |  |  |  |  |
Egyptian Company for Gas Services S.A.E |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Common stock purchased (in shares) |  |  |  |  |  |  |  | 500
Common stock purchased, price per share (in dollars per share) |  |  |  |  |  |  |  | $ 1
Percentage of voting interest acquired (in percent) |  |  | 50.00% |  |  |  |  | 50.00%
Investee capital share amount called |  |  |  |  |  |  | $ 7,500 |
Cash paid to maintain equity interest |  |  |  |  |  |  | $ 3,750 |
Ownership percentage (in percent) |  |  |  |  |  |  | 50.00% |

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