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Equity Financing Transactions - Additional Information (Detail) $ / shares in Units, $ in Thousands, shares in Millions |  |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Jul. 31, 2015 USD ($) Vessel | Aug. 01, 2014 USD ($) Pools | May. 02, 2013 USD ($) | Jul. 31, 2015 USD ($) shares | Aug. 31, 2014 USD ($) $ / shares shares | Dec. 31, 2015 USD ($) Vessel shares | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Increase in carrying amount of non-controlling interest |  |  |  |  |  | $ 535,784 | $ 412,792 | $ 301,559
Amount increases (decreases) to retained earnings |  |  |  |  |  | (152,729) | 68,428 | 36,703
TOTAL EQUITY Retained Earnings [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Amount increases (decreases) to retained earnings |  |  |  |  |  | (152,729) | $ 68,428 | $ 36,703
Teekay Tankers [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Increase in carrying amount of non-controlling interest |  |  |  |  |  | $ 168,100 |  |
Teekay Tankers [Member] | Ship-to-Ship Transfer Business (SPT) [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Number of vessels | Vessel | 6 |  |  |  |  |  |  |
Value of the assets acquired, including working capital | $ 45,958 |  |  | $ 45,958 |  |  |  |
Business acquisition, purchase price |  |  |  | 47,300 |  |  |  |
Value of the assets acquired, including working capital | $ 52,884 |  |  | $ 52,884 |  |  |  |
Teekay Tankers [Member] | Suezmax Tankers [Member] | Principal Maritime Tankers [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Number of vessels | Vessel |  |  |  |  |  | 12 |  |
Teekay Tankers [Member] | Class A [Member] | Suezmax Tankers [Member] | Principal Maritime Tankers [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Purchase of subsidiary common stock |  |  |  |  |  | $ 30,000 |  |
Teekay Tankers [Member] | Class B [Member] | Ship-to-Ship Transfer Business (SPT) [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Purchase of subsidiary common stock |  |  |  |  |  | $ 45,500 |  |
Number of common stock issued | shares |  |  |  | 6.5 |  | 6.5 |  |
Teekay Tankers [Member] | TOTAL EQUITY Retained Earnings [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Decrease in retained earnings |  |  |  |  |  | $ (168,100) |  |
Teekay Tankers [Member] | Teekay Tanker Operations Ltd [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Percentage of ownership acquired |  | 50.00% |  |  |  |  |  |
Commercially managed tanker pools | Pools |  | 3 |  |  |  |  |  |
Value of the assets acquired, including working capital |  | $ 23,500 |  |  |  |  |  |
Value of the assets acquired, including working capital |  |  |  |  | $ 16,900 |  |  |
Teekay Tankers [Member] | Teekay Tanker Operations Ltd [Member] | Reimbursed Working Capital [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Business acquisition, purchase price |  |  |  |  | $ 6,500 |  |  |
Teekay Tankers [Member] | Teekay Tanker Operations Ltd [Member] | Class B [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Number of common shares issued for acquisition | shares |  |  |  |  | 4.2 |  |  |
Value of common shares issued for acquisition |  |  |  |  | $ 17,000 |  |  |
Common share price per share, acquisition closing date | $ / shares |  |  |  |  | $ 4.03 |  |  |
Teekay Tankers [Member] | Teekay Tanker Operations Ltd [Member] | Initial [Member] | Class B [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Value of common shares issued for acquisition |  |  |  |  | $ 15,600 |  |  |
Common share price per share, acquisition closing date | $ / shares |  |  |  |  | $ 3.70 |  |  |
Teekay Parent [Member] | Class A [Member] | Suezmax Tankers [Member] | Principal Maritime Tankers [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Number of common stock issued | shares |  |  |  |  |  | 4.5 |  |
Teekay Offshore [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Increase in carrying amount of non-controlling interest |  |  |  |  |  | $ 168,100 |  |
Teekay Offshore [Member] | Voyageur Spirit [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Business acquisition, debt assumed |  |  | $ 230,000 |  |  |  |  |
Business acquisition, cash paid |  |  | $ 253,000 |  |  |  |  |
Interest of Company's general partner |  |  | 2.00% |  |  |  |  |
Business acquisition, value of common units |  |  | $ 44,300 |  |  |  |  |
Business acquisition, fair value of common units |  |  | 40,000 |  |  |  |  |
Teekay Offshore [Member] | Common Stock [Member] | Petrojarl Knarr FPSO [Member] | Fair Value Asset (Liability) [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Purchase of subsidiary common stock |  |  |  |  |  | $ 300,000 |  |
Number of common stock issued | shares |  |  |  |  |  | 14.4 |  |
Teekay Offshore [Member] | TOTAL EQUITY Retained Earnings [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Decrease in retained earnings |  |  |  |  |  | $ (168,100) |  |
Teekay Offshore [Member] | Initial [Member] | Voyageur Spirit [Member] |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |
Business acquisition, purchase price |  |  | $ 540,000 |  |  |  |  |

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