Long-Term Debt - Additional Information - USD Term Loans (Detail) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2017 USD ($) term_loan vessel	Dec. 31, 2016 USD ($) vessel
Debt Instrument [Line Items]
Outstanding amount	$ 6,648,441	$ 6,730,132
Interest at a weighted-average fixed rate	4.00%	4.00%
Secured debt
Debt Instrument [Line Items]
Number of debt instruments \| term_loan	25
Outstanding amount	$ 3,600,000	$ 3,700,000
Number of term loans which have balloon or bullet repayments \| term_loan	20
Number of vessels \| vessel	49	46
Outstanding term loans not guaranteed by Teekay or its subsidiaries	$ 55,300	$ 56,200
Secured debt \| Certain Term Loans
Debt Instrument [Line Items]
Outstanding amount	$ 68,700	$ 58,300
Interest at a weighted-average fixed rate	2.90%	2.90%
Secured debt \| Remaining Term Loans
Debt Instrument [Line Items]
Debt instrument, interest rate terms	LIBOR plus a margin
Secured debt \| Remaining Term Loans \| Three-month LIBOR \| Minimum
Debt Instrument [Line Items]
Debt instrument spread on variable rate	0.30%	0.30%
Secured debt \| Remaining Term Loans \| Three-month LIBOR \| Maximum
Debt Instrument [Line Items]
Debt instrument spread on variable rate	4.50%	3.75%

The amount not guaranteed by the Company or its subsidiaries.

No definition available.

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Balance Type:	credit
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- Definition

Number of debt instruments.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Number of debt instruments with balloon or bullet payments.

+ References

No definition available.

+ Details

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- Definition

Number Of Vessels

+ References

No definition available.

+ Details

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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.

+ Details

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- Definition

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/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 2: 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(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ References

+ Details

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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.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
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- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

+ References

No definition available.

+ Details

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- Details

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- Details

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- Details

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- Details

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