Long-Term Debt - Additional Information - NOK Bonds (Detail) - Teekay LNG - Nibor Loan - Norwegian Kroner-denominated Bonds due through August 2023 $ in Millions, kr in Billions	12 Months Ended
Dec. 31, 2018 USD ($)	Dec. 31, 2018 NOK (kr)
Debt Instrument [Line Items]
Debt instrument, carrying amount for unsecured debt \| kr		kr 3.1
Debt instrument, carrying amount \| $	$ 353.0
Debt instrument transfer of principal amount	$ 382.5	kr 3.1
Minimum
Debt Instrument [Line Items]
Debt instrument spread on variable rate	3.70%
Fixed interest rates based on cross currency swaps	5.92%	5.92%
Maximum
Debt Instrument [Line Items]
Debt instrument spread on variable rate	6.00%
Fixed interest rates based on cross currency swaps	7.89%	7.89%

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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

+ References

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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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- Definition

Fixed interest rate related to the interest rate derivative.

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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