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Summary of Significant Accounting Policies - Non-controlling Interests (Detail) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Jan. 13, 2022 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net income (loss) attributable to non-controlling interests |  | $ 366,782 | $ 110,953 | $ (11,174)
Net income attributable to the shareholders of Teekay Corporation |  | 150,641 | 78,407 | 7,806
Net income (loss) |  | 517,423 | 189,360 | (3,368)
Disposal Group, Increase Decrease in Net Income Loss Attributable To Noncontrolling Interest, Realized Gain Loss on Sale of Vessels Previously Deferred |  | 0 |  |
Undistributed Earnings |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net income (loss) attributable to non-controlling interests |  | 366,782 | 109,153 | (49,776)
Non-public partially-owned subsidiaries |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net income (loss) attributable to non-controlling interests |  | 0 | 872 | 12,900
Preferred Partner |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net income (loss) attributable to non-controlling interests |  | 0 | 928 | 25,702
Teekay Tankers |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net income (loss) attributable to non-controlling interests |  | 366,909 | 172,857 | (174,787)
Net income attributable to the shareholders of Teekay Corporation |  | 146,762 | 56,229 | (67,585)
Net income (loss) |  | 513,671 | 229,086 | (242,372)
Increase Decrease in Net Income Loss Attributable To Noncontrolling Interest, , Realized Gain Loss on Sale of Vessels Previously Deferred |  |  | 10,600 | (1,800)
Increase Decrease in Net Income Loss Attributable to Controlling Interest, Realized Gain Loss on Sale of Vessels Previously Deferred |  | 0 | 10,600 | (1,800)
Teekay Tankers | Undistributed Earnings |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net income (loss) attributable to non-controlling interests |  | 366,909 | 172,857 | (174,787)
Net income attributable to the shareholders of Teekay Corporation |  | 146,762 | 56,229 | (67,585)
Other Entities and Eliminations |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net income (loss) attributable to non-controlling interests |  | (127) | 24 | (5)
Other Entities and Eliminations | Undistributed Earnings |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net income (loss) attributable to non-controlling interests |  | $ (127) | 24 | (5)
Seapeak |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net income (loss) attributable to non-controlling interests |  |  | (61,928) | 163,618
Net income attributable to the shareholders of Teekay Corporation |  |  | 100,364 | 91,930
Net income (loss) |  |  | 38,436 | 255,548
Disposal Group, Increase Decrease in Net Income Loss Attributable To Noncontrolling Interest, Realized Gain Loss on Sale of Vessels Previously Deferred | $ 84,800 |  |  |
Seapeak | Undistributed Earnings |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net income (loss) attributable to non-controlling interests |  |  | (63,728) | 125,016
Net income attributable to the shareholders of Teekay Corporation |  |  | 100,364 | 91,930
Seapeak | Non-public partially-owned subsidiaries |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net income (loss) attributable to non-controlling interests |  |  | 872 | 12,900
Seapeak | Preferred Partner |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net income (loss) attributable to non-controlling interests |  |  | $ 928 | $ 25,702
Preferred Unitholders | Seapeak |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners | 100.00% |  |  |

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