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v3.19.1

Fair Value Measurements - Additional Information (Detail) $ / shares in Units, $ in Millions |  | 1 Months Ended | 5 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 25, 2017 day $ / shares | Jul. 31, 2018 shares | Dec. 31, 2018 USD ($) $ / shares shares | Dec. 31, 2018 USD ($) $ / shares shares | Dec. 31, 2017 USD ($) $ / shares shares | Dec. 31, 2016 $ / shares | Jun. 29, 2016 $ / shares | Jan. 31, 2014 shares
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Fair value of interest rate swap agreements | $ |  |  | $ (3.2) | $ (3.2) | $ (5.7) |  |  |
Common stock, par value (in dollars per share) | $ / shares |  |  | $ 0.001 | $ 0.001 | $ 0.001 | $ 0.001 |  |
Teekay Offshore |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Exercise price of warrants (in dollars per share) | $ / shares | $ 0.01 |  |  |  |  |  |  |
Common stock, par value (in dollars per share) | $ / shares | $ 4.00 |  |  |  |  |  |  |
Trading period | day | 10 |  |  |  |  |  |  |
Warrant term (in years) | 7 years |  |  |  |  |  |  |
Tanker Investments Ltd. | Stock Purchase Warrants | Maximum |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Number of shares available through exercise of stock purchase warrant |  |  |  |  |  |  |  | 1,500,000
Stock Purchase Warrants | Teekay Corporation | Brookfield |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Number of shares available through exercise of stock purchase warrant |  |  |  |  | 14,500,000 |  |  |
Number of warrants to be issued (in shares) |  | 1,000,000 |  |  |  |  |  |
Series D Warrant | Teekay Offshore |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Stock purchase warrants | $ |  |  |  |  | $ 1.3 |  |  |
Series D Warrant | Teekay Offshore |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Number of shares available through exercise of stock purchase warrant |  |  | 1,755,000 | 1,755,000 |  |  |  |
Exercise price of warrants (in dollars per share) | $ / shares | $ 4.55 |  | $ 4.55 | $ 4.55 |  |  | $ 6.05 |
Stock purchase warrants | $ |  |  | $ 0.2 | $ 0.2 |  |  |  |
Warrant term (in years) |  |  |  | 7 years |  |  |  |
Volatility rate |  |  |  | 56.20% | 72.80% |  |  |
Brookfield Transaction Warrants [Member] | Teekay Offshore |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Volatility rate |  |  |  | 64.10% | 74.90% |  |  |
Brookfield Transaction | Stock Purchase Warrants | Teekay Offshore |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Number of shares available through exercise of stock purchase warrant |  |  | 15,500,000 | 15,500,000 |  |  |  |
Stock purchase warrants | $ |  |  | $ 11.8 | $ 11.8 | $ 29.4 |  |  |
General Partner | Brookfield |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Ownership interest |  |  | 51.00% |  |  |  |  |

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