Long-Term Debt - U.S. Dollar-denominated Term Loans - Additional Information (Details) $ in Thousands	12 Months Ended
Dec. 31, 2021 USD ($) term_loan vessel	Dec. 31, 2020 USD ($)
Debt Instrument [Line Items]
Number of term loans \| term_loan	5
Aggregate principal amount	$ 1,394,856	$ 1,481,936
Long-term debt	$ 1,223,578	1,221,705
Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	0.60%
Maximum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	3.25%
Secured Debt
Debt Instrument [Line Items]
Aggregate principal amount		873,700
US Dollar Denominated Term Loans Due through Two Thousand Thirty
Debt Instrument [Line Items]
Number of term loans \| term_loan	6
Aggregate principal amount	$ 791,271	$ 873,712
US Dollar Denominated Term Loans Due through Two Thousand Thirty \| Asset Pledged as Collateral [Member]
Debt Instrument [Line Items]
Number of vessels \| vessel	16
US Dollar Denominated Term Loans Due through Two Thousand Thirty \| Minimum
Debt Instrument [Line Items]
Fixed interest rate	4.11%
US Dollar Denominated Term Loans Due through Two Thousand Thirty \| Maximum
Debt Instrument [Line Items]
Fixed interest rate	4.41%
US Dollar Denominated Term Loans Due through Two Thousand Thirty \| LIBOR \| Minimum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	1.85%
US Dollar Denominated Term Loans Due through Two Thousand Thirty \| LIBOR \| Maximum
Debt Instrument [Line Items]
Basis spread on variable rate (as a percent)	3.25%
Teekay Nakilat Joint Venture \| Seapeak LLC
Debt Instrument [Line Items]
Partnership interest owned (in percentage)	70.00%
Teekay Tangguh Joint Venture \| Seapeak LLC
Debt Instrument [Line Items]
Partnership interest owned (in percentage)	70.00%

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- Definition

Number of Term Loans

+ References

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- Definition

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

+ References

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
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-Section S99
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-Section S99
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- Definition

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
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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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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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- Definition

The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership.

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