v3.8.0.1

Investments in and Advances to Equity Accounted Investments - Additional Information (Detail) $ in Thousands |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
May 31, 2017 USD ($) shares | Aug. 31, 2014 USD ($) pool shares | Dec. 31, 2016 USD ($) shares | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Jan. 31, 2014 shares
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership percentage |  |  | 100.00% |  |  |
Equity income |  |  | $ 7,680 | $ 11,528 | $ 4,951 |
Purchase price of acquisition |  |  | $ 0 | $ 31,870 | $ 0 |
Tanker Investments Ltd [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Number of stock purchase warrants (in shares) | shares |  |  |  |  |  | 1
Ownership percentage |  |  | 11.30% | 10.20% |  |
Equity Method Investment, Quoted Market Value |  |  | $ 14,300 | $ 42,100 |  |
Teekay Tanker Operations Ltd [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  | 50.00% |  |  | 50.00% |
Stock Issued During Period, Shares, New Issues | shares |  | 4,220,945 |  |  |  |
Number of Commercially Managed Tanker Pools | pool |  | 4 |  |  |  |
Teekay Tanker Operations Ltd [Member] | Subsequent Event [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired | 50.00% |  |  |  |  |
Minimum [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership percentage |  |  | 11.30% |  |  |
Maximum [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Ownership percentage |  |  | 50.00% |  |  |
Common Stock [Member] | Tanker Investments Ltd [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Equity Accounted Investments, Number of shares owned | shares |  |  | 3,400,000 |  |  |
Teekay Tanker Operations Ltd [Member] | Entities Under Common Control [Member] | Subsequent Event [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Purchase price of acquisition | $ 39,000 |  |  |  |  |
Working Capital [Member] | Teekay Tanker Operations Ltd [Member] | Entities Under Common Control [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Purchase price of acquisition |  | $ 6,700 |  |  |  |
Working Capital [Member] | Teekay Tanker Operations Ltd [Member] | Entities Under Common Control [Member] | Subsequent Event [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Purchase price of acquisition | 13,100 |  |  |  |  |
Parent Company [Member] | Teekay Tanker Operations Ltd [Member] | Entities Under Common Control [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  | 50.00% |  |  |  |
Purchase price of acquisition |  | $ 23,700 |  |  |  |
Parent Company [Member] | Teekay Tanker Operations Ltd [Member] | Entities Under Common Control [Member] | Subsequent Event [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Purchase price of acquisition | 39,000 |  |  |  |  |
Parent Company [Member] | Working Capital [Member] | Teekay Tanker Operations Ltd [Member] | Entities Under Common Control [Member] | Subsequent Event [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Purchase price of acquisition | $ 13,100 |  |  |  |  |
Parent Company [Member] | Class B [Member] | Teekay Tanker Operations Ltd [Member] | Entities Under Common Control [Member] | Subsequent Event [Member] |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |
Stock Issued During Period, Shares, New Issues | shares | 13,800,000 |  |  |  |  |

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