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Subsequent Events (Details) $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Feb. 29, 2024 USD ($) vessel | Jan. 31, 2024 USD ($) vessel | Dec. 31, 2023 USD ($) vessel shares | Dec. 31, 2022 USD ($) vessel shares | Dec. 31, 2021 USD ($) vessel shares | Mar. 31, 2024 vessel | Mar. 31, 2024 credit_facility
Subsequent Event [Line Items] |  |  |  |  |  |  |
Common stock, share authorized (in shares) | shares |  |  | 725,000,000 | 725,000,000 | 725,000,000 |  |
August 2022 Stock Repurchase Program |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Treasury Stock, Shares, Acquired | shares |  |  |  | 3,800,000 |  |  |
Teekay Tankers | January 2024 Sale Leaseback | Subsequent Events |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Sale Leaseback Transaction, Expected Cost of Repurchase | $ |  | $ 137.0 |  |  |  |  |
sale leaseback transaction, expected amount of vessel repurchase |  |  |  |  |  | 8 | 8
Sale Leaseback Transaction, Vessels Unencumbered |  |  |  |  |  | 8 | 8
LR2 and Aframax Tankers | Teekay Tankers |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Number Of Vessels Sold | vessel |  |  | 1 | 3 | 4 |  |
Proceeds from sale of vessels and equipment (note 18) | $ |  |  | $ 23.0 |  | $ 56.7 |  |
LR2 and Aframax Tankers | Teekay Tankers | Subsequent Events |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Number Of Vessels Sold | vessel | 1 |  |  |  |  |  |
Proceeds from sale of vessels and equipment (note 18) | $ | $ 23.5 |  |  |  |  |  |
Suezmax Tanker | Teekay Tankers |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Number Of Vessels Sold | vessel |  |  |  | 1 |  |  |
Suezmax Tanker | Teekay Tankers | January 2024 Sale Leaseback | Subsequent Events |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Number Of Vessels To Be Purchased | vessel |  | 8 |  |  |  |  |
Sale Leaseback Transaction, Expected Cost of Repurchase | $ |  | $ 137.0 |  |  |  |  |
Suezmax, Aframax and LR2 Vessels | Teekay Tankers |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Proceeds from sale of vessels and equipment (note 18) | $ |  |  |  | $ 68.4 |  |  |
Suezmax, Aframax and LR2 Vessels | Teekay Tankers | January 2024 Sale Leaseback | Subsequent Events |  |  |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |  |  |
Number Of Vessels To Be Purchased | vessel |  | 8 |  |  |  |  |

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