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Debt - Narrative (Details) - USD ($)	1 Months Ended		9 Months Ended
	Jun. 30, 2020	Jan. 31, 2020	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2020	Jul. 31, 2018
Debt Instrument [Line Items]
Proceeds from short-term and long-term debt			$ 539,307,000	$ 394,278,000
AVIC VIE Loans
Debt Instrument [Line Items]
Debt instrument, face amount	$ 110,000,000.0
Debt instrument, term	7 years
Debt instrument, interest rate	4.64%
AVIC VIE Loans | Secured Debt
Debt Instrument [Line Items]
Proceeds from short-term and long-term debt	$ 100,000,000.0
Margin Loan facility | Secured Debt
Debt Instrument [Line Items]
Line of credit facility, remaining borrowing capacity					$ 30,000,000.0	$ 100,000,000.0
Margin Loan facility | Secured Debt | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate			2.95%
CSSC VIE loan | Golar Viking Conversion
Debt Instrument [Line Items]
Debt instrument, face amount			$ 75,000,000.0
Proceeds from short-term and long-term debt		$ 56,000,000.0	$ 60,200,000

X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
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-Section 55
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-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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-Topic 210
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- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
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