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Summary of Significant Accounting Policies - Narrative (Detail) $ in Thousands | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 24, 2017 | Dec. 31, 2018 USD ($) vote component partner | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Sep. 25, 2017 | May 31, 2017
Vessels and equipment |  |  |  |  |  |
Interest costs capitalized to vessels and equipment |  | $ 14,800 | $ 36,300 | $ 36,900 |  |
Depreciation and amortization |  | 276,307 | 485,829 | 571,825 |  |
Asset retirement obligation |  |  |  |  |  |
Asset retirement obligation |  | 27,800 | 27,300 |  |  |
Other non-current assets (notes 2, 15) |  | 57,807 | 83,211 |  |  |
Employee pension plans |  |  |  |  |  |
Cost recognized for defined contribution pension plans |  | 7,900 | 11,800 | 13,500 |  |
Funded status deficiency |  | 700 | 1,500 |  |  |
Asset retirement obligation |  |  |  |  |  |
Asset retirement obligation |  |  |  |  |  |
Other non-current assets (notes 2, 15) |  | $ 7,500 | 7,400 |  |  |
Liquefied Natural Gas |  |  |  |  |  |
Vessels and equipment |  |  |  |  |  |
Property, plant and equipment, useful life |  | 35 years |  |  |  |
Oil Tanker |  |  |  |  |  |
Vessels and equipment |  |  |  |  |  |
Property, plant and equipment, useful life |  | 25 years |  |  |  |
Liquefied Petroleum Gas |  |  |  |  |  |
Vessels and equipment |  |  |  |  |  |
Property, plant and equipment, useful life |  | 30 years |  |  |  |
Excluding amortization of Drydocking expenditure |  |  |  |  |  |
Vessels and equipment |  |  |  |  |  |
Depreciation and amortization |  | $ 244,000 | $ 397,600 | $ 492,000 |  |
Maximum | FPSO |  |  |  |  |  |
Vessels and equipment |  |  |  |  |  |
Property, plant and equipment, useful life |  | 25 years |  |  |  |
Maximum | Dry-docking activity |  |  |  |  |  |
Vessels and equipment |  |  |  |  |  |
Property, plant and equipment, useful life |  | 5 years |  |  |  |
Minimum | Dry-docking activity |  |  |  |  |  |
Vessels and equipment |  |  |  |  |  |
Property, plant and equipment, useful life |  | 2 years 6 months |  |  |  |
Public Subsidiaries |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Noncontrolling interest |  | 50.00% |  |  |  |
Teekay Offshore |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Number of components in segment | component |  | 2 |  |  |  |
Teekay Offshore | General Partner |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Interest of Company's general partner |  |  | 2.00% | 2.00% |  |
Teekay Tankers |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Common stock number of votes per share | vote |  | 5 |  |  |  |
Joint venture ownership percentage |  |  |  |  |  | 50.00%
Teekay Tankers | Class B |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Common stock, maximum voting power |  | 49.00% |  |  |  |
Teekay Offshore and Teekay LNG | General Partner |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Number of partners | partner |  | 1 |  |  |  |
Teekay LNG | General Partner |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Interest of Company's general partner |  | 2.00% |  |  |  |
Teekay Offshore |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Noncontrolling interest |  |  |  |  | 50.00% |
Teekay Offshore | Common Units |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Noncontrolling interest |  | 13.80% | 13.80% |  |  |
Teekay Offshore | Series D Preferred Stock |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Joint venture ownership percentage |  |  | 74.00% |  |  |
Teekay Offshore | Preferred Unitholders |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Joint venture ownership percentage |  | 100.00% |  |  |  |
Teekay Tankers | Teekay Tankers |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Noncontrolling interest |  | 28.80% | 28.80% |  |  |
Teekay LNG |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Noncontrolling interest |  | 33.10% | 33.00% |  |  |
Teekay LNG | Preferred Unitholders |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Joint venture ownership percentage |  | 100.00% |  |  |  |
GP of Teekay LNG and Teekay Offshore |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Noncontrolling interest |  | 100.00% |  |  |  |
General Partner | Brookfield |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Percentage of ownership acquired |  |  |  |  | 49.00% |
General Partner | Teekay Offshore |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Percentage of ownership acquired |  |  |  |  | 2.00% |
General Partner | Teekay Offshore |  |  |  |  |  |
Basis of presentation and Non-Controlling Interests |  |  |  |  |  |
Interest of Company's general partner | 100.00% |  |  |  |  |

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