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Derivative Instruments and Hedging Activities - Additional Information (Detail) |  |  | 1 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
May 31, 2017 shares | Jun. 01, 2016 USD ($) vessel | Jan. 31, 2014 USD ($) tranche NOK / Derivative shares | Jun. 30, 2017 USD ($) tranche $ / shares | Dec. 31, 2016 USD ($) | Jan. 31, 2014 NOK / shares
Stock Purchase Warrants |  |  |  |  |  |
Stock purchase warrants |  |  |  | $ 5,526,000 | $ 11,754,000 |
Derivatives not designated as a cash flow hedge |  |  |  |  |  |
Stock Purchase Warrants |  |  |  |  |  |
Stock purchase warrants |  |  |  | 0 | 0 |
Interest Rate Swaps and Cross Currency Swaps Agreement |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Guaranteed benefit obligation, up to |  |  |  | 387,000,000.0 |  |
Fair value liability of interest rate swaps, cross currency swaps and foreign currency forward contracts having master agreements providing for net settlement |  |  |  | $ 242,600,000 |  |
Stock Purchase Warrants | Derivatives not designated as a cash flow hedge |  |  |  |  |  |
Stock Purchase Warrants |  |  |  |  |  |
Stock purchase warrants |  |  |  |  | 575,000 |
Time-charter Swap Agreement |  |  |  |  |  |
Time-charter Swap |  |  |  |  |  |
Percent of required need |  | 55.00% |  |  |  |
Daily payments received |  | $ 27,776 |  |  |  |
Brokerage fee percent |  | 1.25% |  |  |  |
Deduction from daily payments made, less than |  | $ 500 |  |  |  |
Term of contract |  | 11 years |  |  |  |
Counterparty option |  | 2 months |  | 2 months |  |
Interest Rate Swaps, Cross Currency Swaps Agreement and Foreign Currency Forward Contracts |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |
Fair value liability of interest rate swaps, cross currency swaps and foreign currency forward contracts having master agreements providing for net settlement |  |  |  | $ 307,200,000 |  |
Time-charter Swap |  |  |  |  |  |
Fair value asset of interest rate swaps, cross currency swaps and foreign currency forward contracts having master agreements providing for net settlement |  |  |  | 4,200,000 |  |
Restricted cash |  |  |  | 50,100,000 |  |
Interest Rate Swaps |  |  |  |  |  |
Time-charter Swap |  |  |  |  |  |
Amounts In AOCI to be recognized in next 12 months |  |  |  | 1,300,000 |  |
Interest Rate Swaps | Derivatives not designated as a cash flow hedge |  |  |  |  |  |
Stock Purchase Warrants |  |  |  |  |  |
Stock purchase warrants |  |  |  | 3,847,000 | 9,839,000 |
Recurring | Level 3 | Reported Value Measurement | Stock Purchase Warrants |  |  |  |  |  |
Stock Purchase Warrants |  |  |  |  |  |
Stock purchase warrants |  |  |  | 0 | 575,000 |
Recurring | Level 3 | Reported Value Measurement | Time-charter Swap Agreement |  |  |  |  |  |
Time-charter Swap |  |  |  |  |  |
Agreements |  |  |  | $ 0 | $ 208,000 |
Teekay Tankers | Time-charter Swap Agreement |  |  |  |  |  |
Time-charter Swap |  |  |  |  |  |
Number of vessel-equivalents | vessel |  | 2 |  |  |  |
Teekay Tankers | Tanker Investments Limited |  |  |  |  |  |
Stock Purchase Warrants |  |  |  |  |  |
Purchase of common stock (in shares) | shares | 27,000,000 |  | 5,000,000 |  |  |
Equity method investment, ownership interest |  |  | 20.00% |  |  |
Issuance of equity private placement |  |  | $ 250,000,000 |  |  |
Equity method investment |  |  | $ 50,000,000 |  |  |
Number of tranches vested | tranche |  |  | 4 | 2 |  |
Teekay Tankers | Tanker Investments Limited | Stock Purchase Warrants |  |  |  |  |  |
Stock Purchase Warrants |  |  |  |  |  |
Fixed price of stock purchase warrants (per share) | (per share) |  |  |  | $ 10 |  | NOK 61.67
Consecutive trading days |  |  | 10 days |  |  |
Teekay Tankers | Tanker Investments Limited | Stock Purchase Warrants | Derivatives not designated as a cash flow hedge |  |  |  |  |  |
Stock Purchase Warrants |  |  |  |  |  |
Stock purchase warrants |  |  | $ 6,800,000 |  |  |
Teekay Tankers | Tanker Investments Limited | Maximum | Stock Purchase Warrants |  |  |  |  |  |
Stock Purchase Warrants |  |  |  |  |  |
Number of shares available through exercise of stock purchase warrant, up to (in shares) | shares |  |  | 1,500,000.0 |  |  |
Teekay Tankers | Tanker Investments Limited | Minimum | Stock Purchase Warrants | Tranche One |  |  |  |  |  |
Stock Purchase Warrants |  |  |  |  |  |
Fair market value of the shares (NOK per share) | NOK / Derivative |  |  | 77.08 |  |  |
Teekay Tankers | Tanker Investments Limited | Minimum | Stock Purchase Warrants | Tranche Two |  |  |  |  |  |
Stock Purchase Warrants |  |  |  |  |  |
Fair market value of the shares (NOK per share) | NOK / Derivative |  |  | 92.50 |  |  |
Teekay Tankers | Tanker Investments Limited | Minimum | Stock Purchase Warrants | Tranche Three |  |  |  |  |  |
Stock Purchase Warrants |  |  |  |  |  |
Fair market value of the shares (NOK per share) | NOK / Derivative |  |  | 107.91 |  |  |
Teekay Tankers | Tanker Investments Limited | Minimum | Stock Purchase Warrants | Tranche Four |  |  |  |  |  |
Stock Purchase Warrants |  |  |  |  |  |
Fair market value of the shares (NOK per share) | NOK / Derivative |  |  | 123.33 |  |  |

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