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Operating Leases - Schedule of Estimated Future Minimum Rental Payments to be Received and Paid Under Lease Contracts (Detail)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
USD ($)
vessel
Dec. 31, 2023
USD ($)
vessel
Operating Leased Assets [Line Items]    
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months $ 43,373  
Lessee, Operating Lease, Liability, Payments, Due Year Two 21,078  
Lessee, Operating Lease, Liability, Payments, Due Year Three 13,410  
Lessee, Operating Lease, Liability, Payments, Due Year Four 8,534  
Lessee, Operating Lease, Liability, Payments, Due Year Five 7,388  
Lessee, Operating Lease, Liability, Payments, Due 93,783  
Operating Lease, Liability, Current 24,875 $ 35,882
Operating Lease, Liability, Noncurrent $ 28,716 40,432
Teekay Tankers    
Operating Leased Assets [Line Items]    
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months   66,300
Lessee, Operating Lease, Liability, Payments, Due Year Two   32,900
Lessee, Operating Lease, Liability, Payments, Due Year Three   18,800
Lessee, Operating Lease, Liability, Payments, Due Year Four   11,200
Lessee, Operating Lease, Liability, Payments, Due Year Five   6,300
Lessee, Operating Lease, Liability, Payments, Due after Year Five   $ 6,600
Number Of Vessels Chartered In | vessel 11 10
Lessee, Operating Lease, Term of Contract 54 months  
Lease [Member]    
Operating Leased Assets [Line Items]    
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months $ 27,461  
Lessee, Operating Lease, Liability, Payments, Due Year Two 13,678  
Lessee, Operating Lease, Liability, Payments, Due Year Three 8,477  
Lessee, Operating Lease, Liability, Payments, Due Year Four 5,284  
Lessee, Operating Lease, Liability, Payments, Due Year Five 3,944  
Lessee, Operating Lease, Liability, Payments, Due 58,844  
Lessee, Operating Lease, Liability, Undiscounted Excess Amount 5,253  
Operating Lease, Liability 53,591  
Operating Lease, Liability, Current 24,875  
Operating Lease, Liability, Noncurrent 28,716  
Non-lease Component [Member]    
Operating Leased Assets [Line Items]    
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months 15,912  
Lessee, Operating Lease, Liability, Payments, Due Year Two 7,400  
Lessee, Operating Lease, Liability, Payments, Due Year Three 4,933  
Lessee, Operating Lease, Liability, Payments, Due Year Four 3,250  
Lessee, Operating Lease, Liability, Payments, Due Year Five 3,444  
Lessee, Operating Lease, Liability, Payments, Due 34,939  
Total Long-term Lease | Teekay Tankers    
Operating Leased Assets [Line Items]    
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months 43,400  
Lessee, Operating Lease, Liability, Payments, Due Year Two 21,100  
Lessee, Operating Lease, Liability, Payments, Due Year Three 13,400  
Lessee, Operating Lease, Liability, Payments, Due Year Four 8,500  
Lessee, Operating Lease, Liability, Payments, Due Year Five $ 7,400