Common stock maximum voting power.

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- Definition

Common Stock, Voting Rights, Votes Per Share Owned

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- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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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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No definition available.

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- Definition

Amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership, due after 1 year (or 1 business cycle).

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Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

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Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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No definition available.

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Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements.

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Summary of Significant Accounting Policies - Basis of Presentation (Details) - USD ($)			12 Months Ended		19 Months Ended
	Nov. 25, 2019	May 08, 2019	Dec. 31, 2019	Dec. 31, 2017	May 07, 2019	Nov. 24, 2019	Dec. 31, 2018	Sep. 25, 2017
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Stockholders' Equity, Reverse Stock Split	one-for-eight
Common Stock, Shares, Outstanding			100,784,422				100,435,210
Teekay LNG and Teekay Tankers [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent			50.00%
Teekay LNG
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent			33.90%				33.10%
General Partner of Teekay LNG [Domain]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent			100.00%
Teekay Offshore
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent								50.00%
Due from Affiliate, Noncurrent		$ 25,000,000
Common Stock \| Teekay Offshore
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest					13.80%
General Partner \| Teekay LNG
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Interest of Company's general partner			2.00%
General Partner \| Teekay Offshore
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Interest of Company's general partner		49.00%		2.00%	49.00%
Teekay Tankers
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Stockholders' Equity, Reverse Stock Split	one-for-eight		one-for-eight
Common Stock, Voting Rights, Votes Per Share Owned			$ 5
Teekay Tankers \| Teekay Tankers
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent			28.70%				28.80%
Teekay Corporation \| Teekay LNG and Teekay Tankers [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent			100.00%
Common Class A \| Teekay Tankers
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Common Stock, Shares, Outstanding	29,000,000					232,000,000
Common Class B \| Teekay Tankers
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Common Stock, Shares, Outstanding	4,600,000					37,000,000
Common Stock Maximum Voting Power			49.00%