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Write-down and loss on sale of vessels - Net (Loss) Gain on Sale of Vessels, Equipment and Other Operating Assets (Detail) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 USD ($) vessel | Dec. 31, 2023 USD ($) vessel | Dec. 31, 2022 USD ($) vessel
Property, Plant and Equipment [Line Items] |  |  |
Operating Lease, Impairment Loss | $ 1,400 |  | $ 1,100
At cost, less accumulated depreciation of $570.9 million (2023 – $440.9 million) | 1,132,109 | $ 929,237 |
Teekay Parent [Member] | Other | FPSO |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Gain (Loss) on Disposition of Assets |  |  | (13,000)
At cost, less accumulated depreciation of $570.9 million (2023 – $440.9 million) |  |  | 0
Teekay Tankers |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Gain (Loss) on Disposition of Assets | (39,500) | $ (10,400) | (9,400)
Proceeds from sale of vessels and equipment (note 18) | $ 88,300 |  | $ 68,400
Teekay Tankers | Suezmax |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Number Of Vessels Sold | vessel | 1 |  |
Teekay Tankers | LR2 and Aframax Tankers |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Number Of Vessels Write Down | vessel |  |  | 1
Teekay Tankers | Suezmax Tanker |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Number Of Vessels Sold | vessel |  |  | 1
Teekay Tankers | Aframax/LR2 Tankers |  |  |
Property, Plant and Equipment [Line Items] |  |  |
Number Of Vessels Sold | vessel | 2 | 1 | 3
Proceeds from sale of vessels and equipment (note 18) |  | $ 23,000 |
reversal of asset impairment charges |  |  | $ 600

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- Definition Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + Details
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