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Obligations Related to Finance Leases - Additional Information (Detail) | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jan. 31, 2024 USD ($) vessel | Sep. 30, 2023 USD ($) | May 31, 2023 USD ($) | Mar. 31, 2023 USD ($) | Dec. 31, 2023 USD ($) vessel valuator | Mar. 31, 2024 vessel | Mar. 31, 2024 credit_facility | Dec. 31, 2022 USD ($)
Finance Lease Obligations [Member] |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Number of Third Party Valuators | valuator |  |  |  |  | 2 |  |  |
Teekay Tankers |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Finance Lease, Weighted Average Discount Rate, Percent |  |  |  |  | 8.40% |  |  | 7.20%
Finance Lease Liability, Gross | $ |  |  |  |  | $ 140,811,000 |  |  | $ 536,480,000
Teekay Tankers | Finance Lease Obligations [Member] |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Debt Covenant Minimum Free Liquidity And Undrawn Revolving Credit Line | $ |  |  |  |  | $ 35,000,000 |  |  |
Percentage of debt |  |  |  |  | 5.00% |  |  |
Teekay Tankers | Minimum |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Sale Leaseback Transaction, Lease Terms |  |  |  |  | six |  |  |
Teekay Tankers | Minimum | Finance Lease Obligations [Member] |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Long-term Debt, Term |  |  |  |  | 6 months |  |  |
Teekay Tankers | Maximum |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Sale Leaseback Transaction, Lease Terms |  |  |  |  | nine |  |  |
Teekay Tankers | Suezmax, Aframax and LR2 Vessels |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Approximate capital leases future minimum payments due | $ |  |  |  |  | $ 181,700,000 |  |  | 695,200,000
Finance Lease, Liability, Undiscounted Excess Amount | $ |  |  |  |  | $ 40,900,000 |  |  | $ 158,700,000
July 2017, November 2018, September 2021, November 2021, March 2022 and April 2022 Sale Leaseback | Teekay Tankers |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Number of vessels | vessel |  |  |  |  | 8 |  |  |
July 2017, November 2018, September 2021, November 2021, March 2022 and April 2022 Sale Leaseback | Teekay Tankers | Suezmax, Aframax and LR2 Vessels |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Number of vessels | vessel |  |  |  |  | 8 |  |  |
Number of Vessels with Purchase Option | vessel |  |  |  |  | 8 |  |  |
November 2021 and April 2022 Sale Leaseback | Teekay Tankers |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Number of vessels | vessel |  |  |  |  | 8 |  |  |
July 2017, November 2018, September 2021 and March 2022 Leaseback | Teekay Tankers |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Minimum hull coverage ratio |  |  |  |  | 100.00% |  |  |
July 2017, November 2018, September 2021 and March 2022 Leaseback | Teekay Tankers | Minimum |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Actual hull coverage ratio |  |  |  |  | 232.00% |  |  | 173.00%
July 2017, November 2018, September 2021 and March 2022 Leaseback | Teekay Tankers | Maximum |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Actual hull coverage ratio |  |  |  |  | 285.00% |  |  | 292.00%
March 2023 Sale Leaseback | Teekay Tankers |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Sale Leaseback Transaction, Net Proceeds | $ |  |  |  | $ 164,300,000 |  |  |  |
March 2023 Sale Leaseback | Teekay Tankers | Suezmax, Aframax and LR2 Vessels |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Number of vessels | vessel |  |  |  |  | 9 |  |  |
May 2023 Sale Leaseback | Teekay Tankers |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Sale Leaseback Transaction, Net Proceeds | $ |  |  | $ 142,800,000 |  |  |  |  |
May 2023 Sale Leaseback | Teekay Tankers | Suezmax, Aframax and LR2 Vessels |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Number of vessels | vessel |  |  |  |  | 6 |  |  |
September 2023 Sale Leaseback | Teekay Tankers |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Sale Leaseback Transaction, Net Proceeds | $ |  | $ 57,200,000 |  |  |  |  |  |
September 2023 Sale Leaseback | Teekay Tankers | Suezmax, Aframax and LR2 Vessels |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Number of vessels | vessel |  |  |  |  | 4 |  |  |
January 2024 Sale Leaseback | Teekay Tankers | Subsequent Events |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Sale Leaseback Transaction, Expected Cost of Repurchase | $ | $ 137,000,000 |  |  |  |  |  |  |
sale leaseback transaction, expected amount of vessel repurchase |  |  |  |  |  | 8 | 8 |
Sale Leaseback Transaction, Vessels Unencumbered |  |  |  |  |  | 8 | 8 |
January 2024 Sale Leaseback | Teekay Tankers | Suezmax, Aframax and LR2 Vessels | Subsequent Events |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Number Of Vessels To Be Purchased | vessel | 8 |  |  |  |  |  |  |
January 2024 Sale Leaseback | Teekay Tankers | Suezmax Tanker | Subsequent Events |  |  |  |  |  |  |  |
Capital Leased Assets [Line Items] |  |  |  |  |  |  |  |
Number Of Vessels To Be Purchased | vessel | 8 |  |  |  |  |  |  |
Sale Leaseback Transaction, Expected Cost of Repurchase | $ | $ 137,000,000 |  |  |  |  |  |  |

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- Definition The minimum liquidity required by covenants of certain debt currently held by the company. Liquidity is defined as cash, cash equivalents and undrawn committed revolving credit lines with at least six months to maturity. + References No definition available. + Details
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