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Summary of Significant Accounting Policies - Basis of Presentation (Details) - $ / shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Teekay Tankers
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	31.00%	28.70%
Seapeak
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	0.00%	0.00%
General Partner of Seapeak
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	100.00%
Teekay Tankers
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Common Stock, Voting Rights, Votes Per Share Owned	$ 5
Common Class B | Teekay Tankers
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Common Stock Maximum Voting Power	49.00%

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Common Stock, Voting Rights, Votes Per Share Owned

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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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- Definition

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

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