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Summary of Significant Accounting Policies - Non-controlling Interests (Detail) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | May 11, 2020
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net (loss) income attributable to non-controlling interests | $ (11,174) | $ 173,915 | $ 161,591 |
Controlling Interest | 7,806 | (82,933) | (310,577) |
Net (loss) income | (3,368) | 90,982 | (148,986) |
Undistributed Earnings |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net (loss) income attributable to non-controlling interests | (49,771) | 138,271 | 83,894 |
Distributed Earnings |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net (loss) income attributable to non-controlling interests | 0 | 0 | 40,138 |
Non-public partially-owned subsidiaries |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net (loss) income attributable to non-controlling interests | 12,900 | 9,955 | 11,814 |
Preferred Partner |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net (loss) income attributable to non-controlling interests | 25,702 | 25,702 | 25,702 |
Teekay Tankers |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net (loss) income attributable to non-controlling interests | (174,787) | 105,455 | 47,887 |
Controlling Interest | (67,585) | (18,138) | (6,525) |
Net (loss) income | (242,372) | 87,317 | 41,362 |
Increase in Net Income Loss Attributable To Controlling Interest, Realized Gain Loss on Sale of Vessels Previously Deferred | (1,800) |  |  |
Increase in Net Income Loss Attributable To Noncontrolling Interest |  | 43,200 | 18,400 |
Decrease in Net Income Loss Attributable to Controlling Interest |  | 43,200 | 18,400 |
Decrease in Net Income Loss Attributable To Noncontrolling Interest, , Realized Gain Loss on Sale of Vessels Previously Deferred | (1,800) |  |  |
Teekay Tankers | Undistributed Earnings |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net (loss) income attributable to non-controlling interests | (174,787) | 105,455 | 47,887 |
Controlling Interest | (67,585) | (18,138) | (6,525) |
Other Entities and Eliminations |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net (loss) income attributable to non-controlling interests | (5) | (13) | 43 |
Seapeak |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net (loss) income attributable to non-controlling interests | 163,618 | 68,473 | 113,661 |
Controlling Interest | 91,930 | 28,839 | 50,943 |
Net (loss) income | 255,548 | 97,312 | 164,604 |
Increase in Net Income Loss Attributable To Controlling Interest, Realized Gain Loss on Sale of Vessels Previously Deferred |  | (7,500) |  |
Decrease in Net Income Loss Attributable to Noncontrolling Interest |  | (7,500) |  |
Seapeak | Undistributed Earnings |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net (loss) income attributable to non-controlling interests | 125,016 | 32,816 | 36,007 |
Controlling Interest | 91,930 | 28,839 | 30,575 |
Seapeak | Distributed Earnings |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net (loss) income attributable to non-controlling interests | 0 | 0 | 40,138 |
Controlling Interest | 0 | 0 | 20,368 |
Seapeak | Non-public partially-owned subsidiaries |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net (loss) income attributable to non-controlling interests | 12,900 | 9,955 | 11,814 |
Seapeak | Preferred Partner |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Net (loss) income attributable to non-controlling interests | $ 25,702 | $ 25,702 | $ 25,702 |
Seapeak |  |  |  |
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] |  |  |  |
Noncontrolling Interest, Ownership Percentage by Parent | 42.40% | 42.40% |  | 42.00%
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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