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Equity Financing Transactions of the Daughter Companies - Additional Information (Detail) $ / shares in Units, $ in Thousands | 3 Months Ended | 5 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2023 USD ($) shares | Dec. 31, 2022 USD ($) shares | Sep. 30, 2022 USD ($) $ / shares shares | Mar. 31, 2022 shares $ / shares | Dec. 31, 2021 USD ($) shares $ / shares | Mar. 31, 2021 USD ($) | Jun. 30, 2023 $ / shares | Dec. 31, 2023 USD ($) shares | Dec. 31, 2022 USD ($) shares | Dec. 31, 2021 USD ($) shares | Dec. 31, 2020 shares | May 31, 2019 USD ($)
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Shares, Outstanding | shares |  | 98,318,395 |  |  |  |  |  | 91,006,182 | 98,318,395 |  |  |
Purchase of Teekay Tankers common shares (note 12) |  |  |  |  |  |  |  |  |  |  |  |
Operating lease right-of-use assets (notes 1 and 8) |  | $ 42,894 |  |  |  |  |  | 76,314 | 42,894 |  |  |
Loss on bond repurchases |  |  |  |  |  |  |  | $ 0 | (12,694) | $ 0 |  |
Senior Notes (8.5%) due January 15, 2020 |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, principal amount |  |  |  |  |  |  |  |  |  |  |  | $ 250,000
Debt Instrument, Repurchase Amount |  | $ 249,000 |  |  |  |  |  |  | 249,000 |  |  |
Loss on bond repurchases |  |  |  |  |  |  |  |  | $ 9,200 |  |  |
Thousands of Shares of Common Stock Outstanding |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Shares, Outstanding | shares |  | 98,318,000 |  |  | 101,571,000 |  |  | 91,006,000 | 98,318,000 | 101,571,000 | 101,109,000 |
Teekay Tankers |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Purchase of Teekay Tankers common shares (note 12) | $ 4,800 | $ 10,000 |  |  | $ 4,700 | $ 5,300 |  |  |  | $ 10,000 |  |
Proceeds from Divestiture of Interest in Subsidiaries and Affiliates |  |  | $ 22,800 |  |  |  |  |  |  |  |  |
dilution gain from the acquisition and disposal of interest in subsidiaries and affiliates |  |  |  |  |  |  |  | $ 500 | $ 5,200 | $ 5,700 |  |
Sale of Investment, Average Share Price | $ / shares |  |  | $ 25.20 |  |  |  |  |  |  |  |  |
Average Share Price | $ / shares |  |  |  | $ 10.82 | $ 11.27 |  | $ 35.95 |  |  |  |  |
Teekay Tankers | Common Class A |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Sale of Investment, Number Of Shares | shares |  |  | 900,000 |  |  |  |  |  |  |  |  |
Purchaese of Investment, Number of Shares | shares | 132,479 |  |  | 500,000 | 400,000 |  |  |  |  |  |  |
Teekay Tankers |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent |  | 28.50% |  |  |  |  |  | 28.70% | 28.50% |  |  |
Seapeak |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent |  | 0.00% |  |  |  |  |  | 0.00% | 0.00% |  |  |

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