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Summary of Significant Accounting Policies - Basis of Presentation (Details) - $ / shares
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
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% 28.50%
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%