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BASIS OF PREPARATION AND SIGNIFICANT ACCOUNTING POLICIES - Gain (Loss) Derivative Instruments (Details) - Vessels - FLNG - Energy related derivative - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Price Risk Derivatives [Line Items] |  |  |
Realized gain on oil derivative instrument | $ 13,089 | $ 26,737 | $ 0
Unrealized (loss)/gain on oil derivative instrument | (39,090) | (9,970) | 15,100
Gain (loss) on price risk derivatives, net | $ (26,001) | $ 16,767 | $ 15,100

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- Definition The aggregate net gain (loss) on price risk derivatives included in earnings in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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- Definition Amount of unrealized gain from the increase in fair value of price risk derivatives designated as cash flow hedging instruments recorded in accumulated other comprehensive income in the period, before taxes, to the extent that the cash flow hedge is determined to be effective. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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