Deprecation of Equipment, Excluding Dry-Docking Costs

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- Definition

Number Of Vessels

+ References

No definition available.

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- Definition

Percentage of assets, liabilities and results of business acquired

+ References

No definition available.

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- Definition

Significant Accounting Policies [Line Items]

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

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Summary of Significant Accounting Policies - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) vessel	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($) vessel	May 31, 2017	Aug. 31, 2014
Significant Accounting Policies [Line Items]
Ownership percentage	100.00%
Vessel's useful life	25 years
Depreciation of vessels and equipment excluding amortization of dry-docking expenditure \| $	$ 81.5	$ 59.5	$ 42.5
Minimum [Member]
Significant Accounting Policies [Line Items]
Ownership percentage	11.30%
Maximum [Member]
Significant Accounting Policies [Line Items]
Ownership percentage	50.00%
High-Q Joint Venture [Member]
Significant Accounting Policies [Line Items]
Number of vessels	1
Ownership percentage	50.00%
Charters In [Member]
Significant Accounting Policies [Line Items]
Number of vessels	7
Company's Fleet [Member]
Significant Accounting Policies [Line Items]
Number of vessels	51
Aframax Tankers [Member]
Significant Accounting Policies [Line Items]
Number of vessels			1
Dry-Docking Activity [Member] \| Minimum [Member]
Significant Accounting Policies [Line Items]
Vessel's useful life	2 years 6 months
Dry-Docking Activity [Member] \| Maximum [Member]
Significant Accounting Policies [Line Items]
Vessel's useful life	5 years
IPO [Member] \| Aframax Tankers [Member]
Significant Accounting Policies [Line Items]
Number of vessels	9
Teekay Tanker Operations Ltd [Member]
Significant Accounting Policies [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired			50.00%		50.00%
Subsequent Event [Member] \| Teekay Tanker Operations Ltd [Member]
Significant Accounting Policies [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired				50.00%
Teekay Corporation [Member] \| Entities Under Common Control [Member] \| Teekay Tanker Operations Ltd [Member]
Significant Accounting Policies [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired					50.00%
Teekay Corporation [Member] \| Entities Under Common Control [Member] \| Teekay Tanker Operations Ltd [Member] \| Subsequent Event [Member]
Significant Accounting Policies [Line Items]
Percentage of assets, liabilities and results of business acquired				100.00%