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COMMITMENTS AND CONTINGENCIES (Details) $ / shares in Units, € in Millions |  | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Oct. 01, 2018 USD ($) | Nov. 30, 2018 $ / shares shares | Dec. 31, 2019 GBP (£) tax_lease | Dec. 31, 2019 USD ($) tax_lease | Dec. 31, 2018 USD ($) $ / shares shares | Dec. 31, 2003 GBP (£) tax_lease | Dec. 31, 2020 EUR (€) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 EUR (€) plant shares | Dec. 31, 2019 USD ($) plant $ / shares shares | Mar. 03, 2017 shares
Tax lease benefits: |  |  |  |  |  |  |  |  |  |  |
Book value of vessels secured against long-term loans |  |  |  |  | $ 3,244,291,000 |  |  |  |  | $ 3,135,891,000 |
Other commitment to pay third party |  |  |  |  |  |  |  |  |  | $ 1,000,000.0 |
Number of tax leases | tax_lease |  |  |  |  |  | 6 |  |  |  |  |
Gross amount received from tax lease benefit (in GBP) | £ |  |  |  |  |  | £ 41,000,000 |  |  |  |  |
Number of tax leases terminated | tax_lease |  |  | 5 | 5 |  |  |  |  |  |  |
Number of power plants | plant |  |  |  |  |  |  |  |  | 2 | 2 |
Contractual obligation |  |  |  |  |  |  |  |  | € 1.1 | $ 913,621,000 |
Common shares, par value (in dollars per share) | $ / shares |  |  |  |  | $ 1.00 |  |  |  |  | $ 1.00 |
Golar Viking Conversion |  |  |  |  |  |  |  |  |  |  |
Tax lease benefits: |  |  |  |  |  |  |  |  |  |  |
Amount received in relation to loss of hire insurance claim |  |  |  | $ 4,000,000.0 |  |  |  |  |  |  |
Minimum |  |  |  |  |  |  |  |  |  |  |
Tax lease benefits: |  |  |  |  |  |  |  |  |  |  |
Estimate of possible exposure |  |  | £ 0 | 0 |  |  |  |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |
Tax lease benefits: |  |  |  |  |  |  |  |  |  |  |
Estimate of possible exposure |  |  | £ 121,100,000 | $ 160,500,000 |  |  |  |  |  |  |
Golar Partners |  |  |  |  |  |  |  |  |  |  |
Tax lease benefits: |  |  |  |  |  |  |  |  |  |  |
Number of tax leases remaining | tax_lease |  |  | 1 | 1 |  |  |  |  |  |  |
Secured Debt | Margin Loan Facility |  |  |  |  |  |  |  |  |  |  |
Tax lease benefits: |  |  |  |  |  |  |  |  |  |  |
Common units, pledged as collateral | shares |  |  |  |  | 21,226,586 |  |  |  | 21,226,586 | 21,226,586 | 20,852,291
Scenario, Forecast |  |  |  |  |  |  |  |  |  |  |
Tax lease benefits: |  |  |  |  |  |  |  |  |  |  |
Contractual obligation | € |  |  |  |  |  |  | € 15.0 |  |  |  |
Scenario, Forecast | Golar Viking Conversion |  |  |  |  |  |  |  |  |  |  |
Tax lease benefits: |  |  |  |  |  |  |  |  |  |  |
Other commitment to pay third party |  |  |  |  |  |  |  | $ 85,300,000 |  |  |
Avenir LNG Ltd |  |  |  |  |  |  |  |  |  |  |
Tax lease benefits: |  |  |  |  |  |  |  |  |  |  |
Investment company, financial commitment, future amount |  |  |  |  |  |  |  |  |  | $ 18,000,000.0 |
Avenir LNG Ltd | Stolt-Nielsen Ltd and Höegh LNG Holdings Ltd |  |  |  |  |  |  |  |  |  |  |
Tax lease benefits: |  |  |  |  |  |  |  |  |  |  |
Investment company, committed capital | $ 182,000,000.0 |  |  |  |  |  |  |  |  |  |
Other Operating Income |  |  |  |  |  |  |  |  |  |  |
Tax lease benefits: |  |  |  |  |  |  |  |  |  |  |
Loss contingency, receivable, proceeds |  |  |  | $ 9,300,000 | $ 50,700,000 |  |  |  |  |  |
Founding Partners | Avenir LNG Ltd |  |  |  |  |  |  |  |  |  |  |
Tax lease benefits: |  |  |  |  |  |  |  |  |  |  |
Investment company, financial commitment, future amount |  |  |  |  |  |  |  |  |  | $ 72,000,000.0 |
Avenir LNG Ltd |  |  |  |  |  |  |  |  |  |  |
Tax lease benefits: |  |  |  |  |  |  |  |  |  |  |
Stock issued during period (in shares) | shares |  | 110,000,000 |  |  |  |  |  |  |  |  |
Common shares, par value (in dollars per share) | $ / shares |  | $ 1.00 |  |  |  |  |  |  |  |  |

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