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INVESTMENTS IN AFFILIATES - Narrative (Details) - USD ($) |  |  |  |  |  |  |  | 1 Months Ended | 12 Months Ended |  |  |
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Nov. 08, 2018 | Oct. 24, 2018 | Oct. 01, 2018 | Nov. 15, 2017 | Oct. 13, 2016 | Oct. 12, 2016 | Jul. 25, 2016 | Dec. 31, 2018 | Nov. 30, 2017 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Jul. 06, 2016 | Dec. 31, 2011 | Mar. 31, 2006
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, other than temporary impairment |  |  |  |  |  |  |  | $ 149,400,000 |  | $ 500,000 | $ 149,389,000 |  |  |  |
Minimum quarterly distribution per unit (in dollars per share) |  | $ 0.4042 |  |  | $ 0.5775 | $ 0.3850 |  |  |  |  |  |  |  |  |
Dividends received |  |  |  |  |  |  |  |  |  | 7,609,000 | 15,837,000 | $ 27,553,000 |  |  |
Derivative asset |  |  |  |  |  |  |  | 95,500,000 |  | $ 46,970,000 | 95,500,000 |  |  |  |
Percentage of voting interest acquired |  |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  |
Dividends |  |  |  |  |  |  |  |  |  | $ 36,726,000 | 49,023,000 |  |  |  |
Interest costs capitalized |  |  |  |  |  |  |  |  |  |  | 148,100,000 |  |  |  |
Equity method investments |  |  |  |  |  |  |  | $ 571,782,000 |  | $ 508,805,000 | $ 571,782,000 | 703,225,000 |  |  |
Common shares, par value (in dollars per share) |  |  |  |  |  |  |  | $ 1.00 |  | $ 1.00 | $ 1.00 |  |  |  |
Investments, ownership percentage |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |
Egyptian Company for Gas Services S.A.E |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock purchased (in shares) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 500,000
Common stock purchased, price per share (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1
Percentage of voting interest acquired |  |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  | 50.00%
Investee capital share amount called |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,500,000 |
Cash paid to maintain equity interest |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,750,000 |
Ownership percentage, equity method investment |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |
Dividends |  |  |  |  |  |  |  |  |  | $ 0 | $ 200,000 |  |  |  |
Golar Partners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends received |  |  |  | $ 900,000 |  |  |  |  |  | $ 36,800,000 | $ 48,400,000 | 52,300,000 |  |  |
Golar Partners, Common Unit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of units (in shares) |  |  |  | 374,295 | 2,994,364 |  |  |  |  |  |  |  |  |  |
Number of earn-out units (in shares) |  |  |  |  | 748,592 |  |  |  |  |  |  |  |  |  |
Golar Partners, Common Unit | Golar Partners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of earn-out units (in shares) |  |  |  |  |  |  |  |  | 374,295 |  |  |  |  |  |
Golar Partners, General Partner Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of units (in shares) |  |  |  | 7,639 | 61,109 |  |  |  |  |  |  |  |  |  |
Number of earn-out units (in shares) |  |  |  |  | 15,278 |  |  |  |  |  |  |  |  |  |
Golar Partners, General Partner Units | Golar Partners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of earn-out units (in shares) |  |  |  |  |  |  |  |  | 7,639 |  |  |  |  |  |
Golar Partners |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage, equity method investment |  |  |  |  |  |  |  | 32.00% |  | 32.00% | 32.00% |  |  |  |
Equity method investments |  |  |  |  |  |  |  | $ 271,160,000 |  | $ 214,296,000 | $ 271,160,000 |  |  |  |
Investments, ownership percentage |  |  |  |  |  |  |  | 32.00% |  | 32.00% | 32.00% |  |  |  |
Golar Power |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage, equity method investment |  |  |  |  |  |  |  | 50.00% |  | 50.00% | 50.00% |  | 50.00% |  |
Related party transaction amount |  |  |  |  |  |  |  |  |  | $ 5,000,000.0 | $ 55,000,000.0 |  |  |  |
Interest costs capitalized |  |  |  |  |  |  |  |  |  | 14,700,000 | 10,500,000 |  |  |  |
Equity method investments |  |  |  |  |  |  |  | $ 266,151,000 |  | $ 261,693,000 | $ 266,151,000 |  |  |  |
OneLNG |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage, equity method investment |  |  |  |  |  |  |  | 51.00% |  | 51.00% | 51.00% |  |  |  |
Ownership percentage after transaction |  |  |  |  |  |  | 51.00% |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  | $ 0 |  |  | $ 0 |  |  |  |
OneLNG | Schlumberger |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage after transaction |  |  |  |  |  |  | 49.00% |  |  |  |  |  |  |  |
Avenir LNG Ltd |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, other than temporary impairment |  |  |  |  |  |  |  |  |  | $ 500,000 |  |  |  |  |
Ownership percentage, equity method investment |  |  |  |  |  |  |  | 22.50% |  | 22.50% | 22.50% |  |  |  |
Interest costs capitalized |  |  |  |  |  |  |  |  |  | $ 1,300,000 | $ 400,000 |  |  |  |
Ownership percentage after transaction | 22.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  |  |  |  |  |  | $ 28,710,000 |  | $ 28,101,000 | 28,710,000 |  |  |  |
Goodwill |  |  |  |  |  |  |  | 3,800,000 |  |  | 3,800,000 |  |  |  |
Avenir LNG Ltd | Stolt-Nielsen Ltd and Höegh LNG Holdings Ltd |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment company, committed capital |  |  | $ 182,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |
Avenir LNG Ltd | Stolt-Nielsen Limited |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage after transaction | 45.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Avenir LNG Ltd | Hoegh LNG Holdings Limited |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage after transaction | 22.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reclassification of derivative |  |  |  |  | $ (15,000,000.0) |  |  |  |  |  |  |  |  |  |
Other Noncurrent Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reclassification of derivative |  |  |  |  | $ 15,000,000.0 |  |  |  |  |  |  |  |  |  |
Earn-Out Units |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative liability |  |  |  |  |  |  |  |  |  |  |  | $ 7,400,000 |  |  |
Loss on derivative |  |  |  |  |  |  |  |  |  |  | 7,400,000 |  |  |  |
Derivative asset |  |  |  |  |  |  |  | $ 0 |  |  | $ 0 |  |  |  |
Private Placement | Avenir LNG Ltd |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments |  |  | $ 24,800,000 |  |  |  |  |  |  |  |  |  |  |  |
Number of subsidiary shares sold in transaction | 11,000,000 |  | 99,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Common shares, par value (in dollars per share) |  |  | $ 1 |  |  |  |  |  |  |  |  |  |  |  |
Sale of stock, price per share | $ 1 |  | $ 1 |  |  |  |  |  |  |  |  |  |  |  |
Shares subscribed but unissued |  |  | 24,800,000 |  |  |  |  |  |  |  |  |  |  |  |
Avenir LNG Ltd |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage, equity method investment |  |  | 25.00% |  |  |  |  |  |  |  |  |  |  |  |
Avenir LNG Ltd | Stolt-Nielsen Ltd and Höegh LNG Holdings Ltd |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investments acquired: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment company, committed capital |  |  | $ 182,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |

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