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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- Definition

Number of debt instruments.

+ References

No definition available.

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- 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

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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No definition available.

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

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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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Long-Term Debt - Additional Information - NOK Bonds (Detail) - Nibor Loan $ in Millions, kr in Billions	12 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($) debt_instrument	Dec. 31, 2017 NOK (kr)
Teekay Offshore and Teekay LNG \| Norwegian Kroner Bond
Debt Instrument [Line Items]
Debt instrument, carrying amount for unsecured debt \| kr			kr 3.1
Teekay Offshore, Teekay LNG and Teekay \| Norwegian Kroner-denominated Bonds due through October 2021
Debt Instrument [Line Items]
Debt instrument, carrying amount	$ 377.9
Debt instrument transfer of principal amount	$ 430.5		kr 3.1
Teekay Offshore, Teekay LNG and Teekay \| Norwegian Kroner-denominated Bonds due through October 2021 \| 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%
Teekay Offshore, Teekay LNG and Teekay \| Norwegian Kroner-denominated Bonds due through October 2021 \| Maximum
Debt Instrument [Line Items]
Debt instrument spread on variable rate	6.00%
Fixed interest rates based on cross currency swaps	7.72%		7.72%
Teekay Offshore \| Norwegian Kroner Bond
Debt Instrument [Line Items]
Debt instrument, carrying amount for unsecured debt		$ 256.9
Number of debt instruments \| debt_instrument		3