Long-Term Debt - Additional Information - Other (Detail)	6 Months Ended
Jun. 30, 2017 USD ($) SecurityLoan	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Interest at a weighted-average fixed rate	4.00%	4.00%
Long term debt principal repayments remainder of 2017	$ 700,000,000
Long term debt principal repayments in 2018	1,700,000,000
Long term debt principal repayments in 2019	1,000,000,000
Long term debt principal repayments in 2020	1,300,000,000
Long term debt principal repayments in 2021	900,000,000
Long term debt principal repayments thereafter	$ 1,000,000,000
Number of loan agreement \| SecurityLoan	11
Minimum level of free cash be maintained as per loan agreements	$ 50,000,000	$ 50,000,000.0
Amount of free liquidity and undrawn revolving credit line	$ 64,300,000
Minimum
Debt Instrument [Line Items]
Vessel market value to loan ratio	113.30%
Vessel market value to loan minimum required ratio	105.00%
Revolving credit lines maturity period	6 months
Free liquidity and undrawn revolving credit line as percentage of debt	5.00%
Maximum
Debt Instrument [Line Items]
Vessel market value to loan ratio	292.50%
Vessel market value to loan minimum required ratio	135.00%
Teekay Tankers
Debt Instrument [Line Items]
Amount of free liquidity and undrawn revolving credit line	$ 41,100,000
Teekay Tankers \| Long-term Debt
Debt Instrument [Line Items]
Debt guaranteed	142,800,000
Teekay Offshore
Debt Instrument [Line Items]
Amount of free liquidity and undrawn revolving credit line	157,200,000
Teekay Offshore \| Long-term Debt
Debt Instrument [Line Items]
Debt guaranteed	$ 331,200,000

Amount of free liquidity and undrawn revolving credit line.

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- Definition

The amount guaranteed by the Company.

+ References

No definition available.

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- Definition

Free liquidity and undrawn revolving credit line as percentage of debt.

+ References

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- Definition

Minimum level of free cash maintained per loan agreements.

+ References

No definition available.

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- Definition

Number Of Loan Agreements

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No definition available.

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- Definition

Undrawn Revolving Credit Facilities Time To Maturity

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No definition available.

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- Definition

Vessel Market Value To Loan Ratio

+ References

No definition available.

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- Definition

Vessel Market Value to Loan Required Ratio

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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.

+ References

No definition available.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04.(a))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04.(a))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

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- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the remainder of the fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

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

+ References

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