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Obligations Related to Finance Leases - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023
Operating Leased Assets [Line Items] |  |
Finance Lease, Liability, Current | $ 0 | $ (20,517)
Finance Lease, Liability, Noncurrent | 0 | 119,082
Lessee, Operating Lease, Liability, Payments, Due Year Five | 7,388 |
Teekay Tankers |  |
Operating Leased Assets [Line Items] |  |
Finance Lease Liability, Gross | 0 | 140,811
Finance Lease, Liability | 0 | 139,599
Finance Lease, Liability, Current | 0 | (20,517)
Finance Lease, Liability, Noncurrent | 0 | 119,082
Lessee, Operating Lease, Liability, Payments, Due Year Five |  | 6,300
Finance Lease Obligations [Member] | Teekay Tankers |  |
Operating Leased Assets [Line Items] |  |
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net | 0 | $ (1,212)
March 2024 Sale Leaseback | Teekay Tankers |  |
Operating Leased Assets [Line Items] |  |
Sale Leaseback Transaction, Total Cost | $ 137,000 |

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