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Long-Term Debt - Additional Information - Revolvers (Detail)
 12 Months Ended
Dec. 31, 2024
USD ($)
valuator
credit_facility
vessel
Dec. 31, 2023
USD ($)
Jan. 26, 2018
Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Credit facility, maximum borrowing capacity   $ 321,800,000  
Undrawn amount of revolving credit facility   $ 321,800,000  
Teekay Parent | Convertible Debt [Member]      
Debt Instrument [Line Items]      
Debt interest rate     5.00%
Minimum      
Debt Instrument [Line Items]      
Number of Third Party Valuators | valuator 2    
Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Number of credit facilities | credit_facility 1    
Credit facility, maximum borrowing capacity $ 254,000,000.0    
Undrawn amount of revolving credit facility $ 254,000,000.0    
Debt instrument spread on variable rate 2.00%    
Available capacity reduced under revolving credit facility in year 2 $ 66,400,000    
Debt Instrument, Collateral, Number of Vessels | vessel 19    
Line Of Credit Reduction Of Available Borrowing Capacity in Year One $ 67,800,000    
Available capacity reduced under revolving credit facility in year 3 55,000,000    
Line Of Credit Reduction Of Available Borrowing Capacity In Year Four 43,300,000    
Line Of Credit Reduction Of Available Borrowing Capacity In Year Five $ 21,500,000