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REVENUE - Change in Contract Balances (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($)
Change In Contract With Customer Asset [Roll Forward] |
Contract with customer, asset, net, beginning balance | $ 18,656
Payments received for services billed in prior period | (17,776)
Services provided and billed in current period | 233,161
Payments received for services billed in current period | (207,261)
Contract with customer, asset, net, ending balance | 26,780
Change In Contract With Customer Liability [Roll Forward] |
Contract with customer, liability, beginning balance | (27,076)
Deferred commissioning period revenue | 4,220
Contract with customer, liability, ending balance | $ (22,856)

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- Definition Change In Contract With Customer Liability + References No definition available. + Details
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- Definition Contract with Customer, Asset, Payment Received for Services Billed in Current Period + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Contract with Customer, Asset, Payment Received for Services Billed in Prior Period + References No definition available. + Details
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Namespace Prefix: | glng_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition Contract with Customer, Asset, Revenue Recognized + References No definition available. + Details
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Namespace Prefix: | glng_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Contract with Customer, Liability, Deferred Commission Period Billing + References No definition available. + Details
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Namespace Prefix: | glng_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130549-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556615&loc=SL49130531-203044 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121556615&loc=SL49130533-203044 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556615&loc=SL49130531-203044 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130549-203045 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556615&loc=SL49130532-203044 + Details
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