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v3.20.1

Equity Financing Transactions of the Daughter Companies - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands |  |  | 12 Months Ended | 19 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 25, 2019 | May 08, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | May 07, 2019 | Nov. 24, 2019 | Nov. 30, 2017 | Nov. 27, 2017 | Sep. 25, 2017 | May 31, 2017 | Dec. 31, 2016
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity, Reverse Stock Split | one-for-eight |  |  |  |  |  |  |  |  |  |  |
Common Stock, Shares, Outstanding |  |  | 100,784,422 | 100,435,210 |  |  |  |  |  |  |  |
Income from vessel operations |  |  | $ 204,042 | $ 164,319 | $ 6,700 |  |  |  |  |  |  |
Payments for Repurchase of Common Stock |  |  | $ 25,729 | $ 0 | 0 |  |  |  |  |  |  |
Increases (decreases) to retained earnings |  |  |  |  | $ 23,530 |  |  |  |  |  |  |
Tanker Investments Ltd. |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount purchased for shares |  |  |  |  |  |  |  |  | $ 151,300 |  |  |
Acquisition price (in dollars per share) |  |  |  |  |  |  |  |  | $ 1.70 |  |  |
Common Stock |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Shares, Outstanding |  |  | 100,784,000 | 100,435,000 | 89,127,000 |  |  |  |  |  |  | 86,150,000
Retained Earnings |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Increases (decreases) to retained earnings |  |  |  |  | $ 23,530 |  |  |  |  |  |  |
Teekay Parent |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Income from vessel operations |  |  | $ (19,875) | $ (23,460) | (33,467) |  |  |  |  |  |  |
Teekay Offshore |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Realized Gain (Loss) on Disposal |  |  | 8,900 |  |  |  |  |  |  |  |  |
Fair value of vessel charters with Teekay Offshore |  |  |  |  |  |  |  |  |  | $ 14,812 |  |
Teekay Offshore | Teekay Parent |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Due to affiliate |  |  |  |  | $ 200,000 |  |  |  |  |  |  |
Teekay Offshore | Series C-1 Preferred Units |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Preferred units dividend rate |  |  |  |  | 8.60% |  |  |  |  |  |  |
Teekay Offshore | Series D Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Preferred units dividend rate |  |  |  |  | 10.50% |  |  |  |  |  |  |
Teekay Offshore | Common Stock |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payment in kind distributions (in units) |  |  |  |  | 2,400,000 |  |  |  |  |  |  |
Teekay Offshore | Payment in Kind | Common Stock | Teekay Parent |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Payment in kind distributions (in units) |  |  |  |  | 1,700,000 |  |  |  |  |  |  |
Teekay LNG |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Realized Gain (Loss) on Disposal |  |  | $ 5,600 |  |  |  |  |  |  |  |  |
Teekay Tankers |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Stockholders' Equity, Reverse Stock Split | one-for-eight |  | one-for-eight |  |  |  |  |  |  |  |  |
Teekay Tankers | Tanker Investments Ltd. |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Amount purchased for shares |  |  |  |  |  |  |  |  | $ 151,300 |  |  |
Teekay Tankers | Common Class A |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Shares, Outstanding | 29,000,000 |  |  |  |  |  | 232,000,000 |  |  |  |  |
Teekay Tankers | Common Class B |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Shares, Outstanding | 4,600,000 |  |  |  |  |  | 37,000,000 |  |  |  |  |
TTOL [Member] | Teekay Tankers |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  |  |  | 50.00% |
Tanker Investments Ltd. | Teekay Parent | Tanker Investments Ltd. |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  | 8.20% |  |  |  |
Tanker Investments Ltd. | Teekay Tankers | Tanker Investments Ltd. |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  | 88.70% |  |  |  |
Teekay Offshore | Series D Preferred Stock |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Ownership percentage |  |  |  |  |  |  |  |  |  | 74.00% |  |
Teekay Offshore | General Partner |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest of Company's general partner |  | 49.00% |  |  | 2.00% | 49.00% |  |  |  |  |  |
Common Unit Repurchase Program 2018 [Member] | Teekay LNG |  |  |  |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  | $ 100,000 |  |  |  |  |  |  |  |
Stock Repurchased During Period, Shares |  |  | 1,900,000 | 300,000 |  |  |  |  |  |  |  |
Payments for Repurchase of Common Stock |  |  | $ 25,200 | $ 3,700 |  |  |  |  |  |  |  |

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