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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
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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 |

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- Definition Amount of lessee's undiscounted obligation for lease payment for operating lease due after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-6 + Details
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