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DEBT - Debt Restrictions Narrative (Details) | Dec. 31, 2020 USD ($)
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Debt Disclosure [Abstract] |
Restrictive covenants, minimum amount of cash and cash equivalents | $ 50,000,000.0

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- Definition Debt Instrument, Restrictive Covenants, Minimum Amount of Cash and Cash Equivalents + References No definition available. + Details
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Namespace Prefix: | glng_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_DebtDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration