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Equity-accounted Investments - Additional Information (Detail) |  |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |  |  |  |  |
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Jan. 08, 2019 | Jan. 31, 2018 USD ($) | Nov. 27, 2017 USD ($) $ / shares shares | May 31, 2017 shares | Nov. 30, 2018 USD ($) | Sep. 30, 2018 | Dec. 31, 2017 USD ($) vessel | Dec. 31, 2015 ft³ | Oct. 31, 2014 shares | Jun. 30, 2014 USD ($) vessel | Jan. 31, 2014 USD ($) shares | Dec. 31, 2018 USD ($) lease | Dec. 31, 2018 USD ($) lease vessel m³ ft³ | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Mar. 29, 2019 USD ($) | Dec. 11, 2017 USD ($) | Nov. 30, 2017 | Sep. 25, 2017 | Dec. 02, 2015 | Jun. 30, 2015 | Nov. 30, 2011 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  |  |  |  |  |  | 100.00% | 100.00% |  |  |  |  |  |  |  |  |
Proceeds from sale of equity-accounted investment |  |  |  |  |  |  |  |  |  |  |  |  | $ 81,823,000 | $ 0 | $ 0 |  |  |  |  |  |  |
Investments in subsidiaries |  |  |  |  |  |  | $ 1,335,123,000 |  |  |  |  | $ 1,288,444,000 | 1,288,444,000 | 1,335,123,000 |  |  |  |  |  |  |  |
Investment in equity private placement |  |  |  |  |  |  | 1,276,618,000 |  |  |  |  | $ 1,193,741,000 | 1,193,741,000 | 1,276,618,000 |  |  |  |  |  |  |  |
Equity income |  |  |  |  |  |  |  |  |  |  |  |  | $ 61,054,000 | (37,344,000) | 85,639,000 |  |  |  |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  |  |  |  |  |  | 52.00% | 52.00% |  |  |  |  |  |  |  |  |
Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  |  |  |  |  |  | 14.00% | 14.00% |  |  |  |  |  |  |  |  |
Teekay Offshore |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Difference between carrying amount and book value |  |  |  |  |  |  | 3,800,000 |  |  |  |  | $ 10,700,000 | $ 10,700,000 | 3,800,000 |  |  |  |  |  |  |  |
Investment in equity private placement |  |  |  |  |  |  | 143,300,000 |  |  |  |  | 134,400,000 | 134,400,000 | 143,300,000 |  |  |  |  |  |  |  |
Quoted market value of investment of existing contract |  |  |  |  |  |  | $ 133,500,000 |  |  |  |  | 68,500,000 | $ 68,500,000 | $ 133,500,000 |  |  |  |  |  |  |  |
Magnora |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  | 43.50% |  |  |  |  |  |  | 43.50% |  |  |  |  |  |  |  | 40.00%
Investment in equity private placement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 25,000,000
Magnora ASA [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of equity-accounted investment |  |  |  |  | $ 27,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain from sale |  |  |  |  |  |  |  |  |  |  |  | $ 15,300,000 |  |  |  |  |  |  |  |  |  |
Yamal LNG Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  |  |  |  |  |  | 50.00% | 50.00% |  |  |  | 50.00% |  |  |  |  |
Proceeds from equity method investment |  |  |  |  |  |  | $ 52,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tax indemnification |  |  |  |  |  |  | $ 600,000 |  |  |  |  | $ 600,000 | $ 600,000 | $ 600,000 |  |  |  |  |  |  |  |
Yamal LNG Joint Venture | Newbuildings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of vessels | vessel |  |  |  |  |  |  | 6 |  |  |  |  |  | 6 |  |  |  |  |  |  |  |  |
Teekay LNG |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of equity-accounted investment |  | $ 54,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain from sale |  |  |  |  |  |  |  |  |  |  |  |  | $ 5,600,000 |  |  |  |  |  |  |  |  |
Teekay LNG | Excalibur Joint Venture And Excelsior Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Difference between carrying amount and book value |  |  |  |  |  |  | $ 13,400,000 |  |  |  |  | 13,000,000 | 13,000,000 | 13,400,000 |  |  |  |  |  |  |  |
Tax indemnification |  |  |  |  |  |  | 200,000 |  |  |  |  | 0 | 0 | 200,000 |  |  |  |  |  |  |  |
Teekay LNG | Exmar LPG Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Difference between carrying amount and book value |  |  |  |  |  |  | 25,500,000 |  |  |  |  | 24,900,000 | 24,900,000 | 25,500,000 |  |  |  |  |  |  |  |
Due from joint ventures |  |  |  |  |  |  | 52,300,000 |  |  |  |  | 52,300,000 | 52,300,000 | 52,300,000 |  |  |  |  |  |  |  |
Tax indemnification |  |  |  |  |  |  | 1,600,000 |  |  |  |  | $ 1,300,000 | $ 1,300,000 | 1,600,000 |  |  |  |  |  |  |  |
Guarantee minimum liquidity as percentage |  |  |  |  |  |  |  |  |  |  |  | 50.00% | 50.00% |  |  |  |  |  |  |  | 50.00% |
Capital Leased Assets, Number of Units | lease |  |  |  |  |  |  |  |  |  |  |  | 4 | 4 |  |  |  |  |  |  |  |  |
Interest receivable |  |  |  |  |  |  | 200,000 |  |  |  |  | $ 0 | $ 0 | 200,000 |  |  |  |  |  |  |  |
Teekay LNG | Pan Union Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Difference between carrying amount and book value |  |  |  |  |  |  | 11,400,000 |  |  |  |  | 11,000,000 | $ 11,000,000 | 11,400,000 |  |  |  |  |  |  |  |
Teekay LNG | Pan Union Joint Venture | Newbuildings | Shipbuilding supervision and crew training services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of vessels | vessel |  |  |  |  |  |  |  |  |  | 4 |  |  | 1 |  |  |  |  |  |  |  |  |
Credit facility, maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  | 24,000,000 | $ 24,000,000 |  |  |  |  |  |  |  |  |
In-process revenue contracts |  |  |  |  |  |  | 8,200,000 |  |  | $ 36,900,000 |  | 0 | 0 | 8,200,000 |  |  |  |  |  |  |  |
Long-term receivable |  |  |  |  |  |  | 3,500,000 |  |  | 20,300,000 |  | 200,000 | 200,000 | 3,500,000 |  |  |  |  |  |  |  |
Teekay LNG | Bahrain LNG Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments in subsidiaries |  |  |  |  |  |  | 79,100,000 |  |  |  |  | 79,100,000 | 79,100,000 | 79,100,000 |  |  |  |  |  |  |  |
Investments in and advances to affiliates |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 | 100,000 |  |  |  |  |  |  |  |
Teekay LNG | Bahrain LNG Joint Venture | LNG receiving and regasification terminal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capacity of production facility, per day | ft³ |  |  |  |  |  |  |  | 800,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Onshore nitrogen production facility lease period (in years) |  |  |  |  |  |  |  | 20 years |  |  |  |  | 20 years |  |  |  |  |  |  |  |  |
Credit facility, maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  | 194,800,000 | $ 194,800,000 |  |  |  |  |  |  |  |  |
Teekay LNG | Bahrain LNG Joint Venture | LNG receiving and regasification terminal | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capacity of production facility, per day | ft³ |  |  |  |  |  |  |  |  |  |  |  |  | 800,000,000 |  |  |  |  |  |  |  |  |
Teekay LNG | Yamal LNG Joint Venture | Newbuildings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of vessels | vessel |  |  |  |  |  |  |  |  |  |  |  |  | 4 |  |  |  |  |  |  |  |  |
Credit facility, maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  | $ 1,098,000,000 | $ 1,098,000,000 |  |  |  |  |  |  |  |  |
Volume of vessels (in cubic meters) | m³ |  |  |  |  |  |  |  |  |  |  |  |  | 172,000 |  |  |  |  |  |  |  |  |
Teekay LNG | Teekay LNG - Marubeni Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  |  |  |  |  |  | 52.00% | 52.00% |  |  |  |  |  |  |  |  |
Tax indemnification |  |  |  |  |  |  | 500,000 |  |  |  |  | $ 400,000 | $ 400,000 | 500,000 |  |  |  |  |  |  |  |
Guarantee minimum liquidity as percentage |  |  |  |  |  |  |  |  |  |  |  | 52.00% | 52.00% |  |  |  |  |  |  |  |  |
Teekay LNG | Angola LNG Carriers | Newbuildings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  |  |  |  |  |  | 33.00% | 33.00% |  |  |  |  |  |  |  |  |
Number of vessels | vessel |  |  |  |  |  |  |  |  |  |  |  |  | 4 |  |  |  |  |  |  |  |  |
Volume of vessels (in cubic meters) | m³ |  |  |  |  |  |  |  |  |  |  |  |  | 160,400 |  |  |  |  |  |  |  |  |
Teekay LNG | Angola LNG Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  |  |  |  |  |  | 33.00% | 33.00% |  |  |  |  |  |  |  |  |
Tax indemnification |  |  |  |  |  |  | 700,000 |  |  |  |  | $ 600,000 | $ 600,000 | 700,000 |  |  |  |  |  |  |  |
Teekay LNG | RasGas3 Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  |  |  |  |  |  | 40.00% | 40.00% |  |  |  |  |  |  |  |  |
Teekay LNG | LIBOR | Exmar LPG Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument spread on variable rate |  |  |  |  |  |  |  |  |  |  |  |  | 0.50% |  |  |  |  |  |  |  |  |
Teekay LNG | LIBOR | Bahrain LNG Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument spread on variable rate |  |  |  |  |  |  |  |  |  |  |  |  | 1.25% |  |  |  |  |  |  |  |  |
Teekay LNG - Marubeni Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, principal amount |  |  |  |  |  |  |  |  |  |  |  | $ 306,500,000 | $ 306,500,000 |  |  |  |  |  |  |  |  |
Yamal LNG Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from equity method investment |  |  |  |  |  |  | $ 104,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Yamal LNG Joint Venture | Newbuildings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility, maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,600,000,000 |  |  |  |  |
Teekay and Teekay Tankers | Tanker Investments Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  |  |  |  |  | 20.00% |  |  |  |  |  |  |  |  |  |  |
Issuance of equity private placement |  |  |  |  |  |  |  |  |  |  | $ 250,000,000 |  |  |  |  |  |  |  |  |  |  |
Equity method investment |  |  |  |  |  |  |  |  |  |  | $ 50,000,000 |  |  |  |  |  |  |  |  |  |  |
Teekay Offshore |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity income |  |  |  |  |  |  |  |  |  |  |  |  | $ (6,907,000) | $ (2,461,000) |  |  |  |  |  |  |  |
Teekay Tankers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Teekay Tankers | High-Q Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  |  |  |  |  |  | 50.00% | 50.00% |  |  |  |  |  |  |  |  |
Teekay Tankers | Tanker Investments Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership acquired |  |  |  |  |  |  |  |  | 2.43% |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock | Teekay and Teekay Tankers | Tanker Investments Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of common stock (in shares) | shares |  |  |  |  |  |  |  |  |  |  | 5,000,000 |  |  |  |  |  |  |  |  |  |  |
Common Stock | Teekay Tankers | Tanker Investments Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of common stock (in shares) | shares |  |  |  |  |  |  |  |  | 900,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Fair Value Asset (Liability) | Teekay LNG | Pan Union Joint Venture | Newbuildings | Shipbuilding supervision and crew training services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
In-process revenue contracts |  |  |  |  |  |  |  |  |  | 33,300,000 |  |  |  |  |  |  |  |  |  |  |  |
Long-term receivable |  |  |  |  |  |  |  |  |  | $ 16,500,000 |  |  |  |  |  |  |  |  |  |  |  |
Equity-accounted joint ventures | Teekay LNG | Bahrain LNG Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30.00% |  |
Thirty Percent Ownership | Teekay LNG | Pan Union Joint Venture | Newbuildings | Shipbuilding supervision and crew training services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  |  |  |  |  |  | 30.00% | 30.00% |  |  |  |  |  |  |  |  |
Twenty Percent Ownership | Teekay LNG | Pan Union Joint Venture | Newbuildings | Shipbuilding supervision and crew training services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  |  |  |  |  |  | 20.00% | 20.00% |  |  |  |  |  |  |  |  |
Number of vessels | vessel |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |
Nogaholdings | Teekay LNG | Bahrain LNG Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30.00% |  |
Samsung | Teekay LNG | Bahrain LNG Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 16.00% |  |
GIC | Teekay LNG | Bahrain LNG Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 24.00% |  |
Teekay Offshore |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |  |  |
China LNG | Yamal LNG Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  |  |  |  |  |  | 50.00% | 50.00% |  |  |  |  |  |  |  |  |
NYK Energy Transport | Angola LNG Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  |  |  |  |  |  | 33.00% | 33.00% |  |  |  |  |  |  |  |  |
Exmar NV | Teekay LNG | Exmar LPG Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  | 50.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Mitsui & Co. Ltd | Angola LNG Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  |  |  |  |  |  | 34.00% | 34.00% |  |  |  |  |  |  |  |  |
Pan Asia | Thirty Percent Ownership | Teekay LNG | Pan Union Joint Venture | Shipbuilding supervision and crew training services |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of vessels | vessel |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |
Common Stock | Teekay Offshore |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 14.00% |  |  |
Noncontrolling interest |  |  |  |  |  |  | 13.80% |  |  |  |  | 13.80% | 13.80% | 13.80% |  |  |  |  |  |  |  |
Tanker Investments Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership acquired |  |  | 19.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount purchased for shares |  |  | $ 151,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition price (in dollars per share) | $ / shares |  |  | $ 1.70 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tanker Investments Ltd. | Teekay Tankers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Existing time-charter contracts |  |  | $ 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt assumed |  |  | 337,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total vessels and equipment |  |  | $ 467,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 88.70% |  |  |  |
Percentage of ownership acquired |  |  | 11.30% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount purchased for shares |  |  | $ 151,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition price (in dollars per share) | $ / shares |  |  | $ 1.7 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transaction costs |  |  | $ 6,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total acquisition cost |  |  | 177,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net working capital assumed |  |  | $ 47,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares acquiring (in shares) | shares |  |  |  | 27,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other than temporary impairment |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 46,200,000 |  |  |  |  |  |  |  |
Tanker Investments Ltd. | Class A | Teekay Tankers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares to be issued/exchanged (in shares) | shares |  |  | 88,977,544 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share exchange (in shares) | shares |  |  |  | 3.3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tanker Investments Ltd. | Class A | Teekay Corporation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares to be issued/exchanged (in shares) | shares |  |  | 8,250,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Time charters | Lease Agreements | Teekay LNG | Bahrain LNG Joint Venture | LNG receiving and regasification terminal |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Onshore nitrogen production facility lease period (in years) |  |  |  |  |  | 21 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events | Teekay Offshore |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quoted market value of investment of existing contract |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 67,900,000 |  |  |  |  |  |
Subsequent Events | Twenty Percent Ownership | Teekay LNG | Pan Union Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, ownership interest | 20.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events | Pan Africa | Teekay LNG | Pan Union Joint Venture |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Charter contract period (in years) | 20 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent Events | Common Stock | Teekay Offshore |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13.80% |  |  |  |  |  |
Interest Rate Swap Agreements | Unrealized Gain Loss [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity income |  |  |  |  |  |  |  |  |  |  |  |  | $ 17,600,000 | $ 7,700,000 | $ 8,700,000 |  |  |  |  |  |  |

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