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

Finance Lease Liability, Gross

No definition available.

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- Definition

Sale Leaseback Transaction, Cost of Repurchase

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

+ References

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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.

+ References

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+ Details

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent.

+ References

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in 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

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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- Details

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