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Capital Stock - Additional Information, Stock-based compensation (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Stock options granted (in shares) | 507,000 | 1,490,000 | 0
Weighted-average grant-date fair value of options granted (in dollars per share) | $ 2.55 | $ 1.16 | $ 0
Common stock conversion (in shares) | 1 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term | 5 years 6 months | 5 years 6 months |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested | $ 3,500 | $ 100 | $ 0
Non-Management Directors | Teekay Tankers |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares Granted, Value, Share-based Payment Arrangement, before Forfeiture | $ 300 | $ 300 | 300
Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Common stock, shares reserved for issuance upon exercise of options or equity awards granted or to be granted | 11,324,227 | 11,787,597 |
Stock options granted (in shares) | 506,579 | 1,489,648 |
Stock option, term (in years) | 10 years |  |
Vesting period (in years) | 3 years |  |
Compensation costs | $ 1,600 | $ 1,100 | 1,000
Intrinsic value of outstanding in-the-money stock options | $ 10,500 | $ 3,800 |
Weighted-average remaining life (in years) | 5 years 6 months | 5 years 10 months 24 days |
Weighted-average grant-date fair value of options granted (in dollars per share) | $ 2.55 | $ 1.16 |
Expected volatility used in computing fair value of options granted | 41.27% | 38.63% |
Dividend yield used in computing fair value of options granted | 0.00% | 0.00% |
Risk-free interest rate used in computing fair value of options granted | 3.83% | 3.01% |
Estimated forfeiture rate used in computing fair value of options granted | 0.00% | 6.00% |
Stock Options | Teekay Tankers |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Stock options granted (in shares) | 0 |  |
Stock Options | Nonvested |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Weighted average grant date fair value of non-vested options forfeited | $ 0 | $ 0 | $ 45
Restricted Stock Units |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting period (in years) | 3 years |  |
Common stock conversion (in shares) | 1 |  |
Number of shares or units granted equity based compensation awards | 329,735 | 787,586 | 355,944
Shares Granted, Value, Share-based Payment Arrangement, before Forfeiture | $ 1,900 | $ 2,300 | $ 1,400
Vested restricted stock (in shares) | 651,135 | 631,706 | 880,320
Market value of vested restricted stock | $ 2,000 | $ 2,200 | $ 4,700
Stock granted (in shares) | 149,217 | 218,671 | 222,590
Share based compensation expense | $ 2,700 | $ 2,900 | $ 2,300
Shares Issued, Shares, Share-Based Payment, Arrangement, Vested and Deferred | 184,498 |  |
Restricted Stock Units | Teekay Tankers |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Vesting period (in years) | 3 years |  |
Restricted Stock Awards |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Compensation costs | $ 300 | $ 300 | $ 600
Number of shares or units granted equity based compensation awards | 47,330 | 95,485 | 149,366

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