Share-based compensation plans (Tables) |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Disclosure of terms and conditions of share-based payment arrangement [line items] | |
| Compensation expense under equity settled plans | 2025 2024 Employee share ownership plan $ 5,612 $ 4,881 Restricted share unit plan 9,656 6,775 Total $ 15,268 $ 11,656 |
| Expenses (recoveries) cash-settled plans | 2025 2024 Performance share unit plan $ 28,854 $ 13,249 Restricted share unit plan 20,920 13,125 Deferred share unit plan 19,201 9,221 Phantom stock option plan 1,017 743 Phantom restricted share unit plan 1,369 863 Total $ 71,361 $ 37,201 |
| Stock Option Plan [Member] | |
| Disclosure of terms and conditions of share-based payment arrangement [line items] | |
| Schedule of number of stock options and weighted average exercisable price | (Number of options) 2025 2024 Beginning of year 259,958 1,396,289 Granted - - Exercised [note 16] (145,895) (1,136,331) End of year 114,063 259,958 Exercisable 114,063 259,958 2025 2024 Beginning of year $15.05 $14.73 Granted - - Exercised 14.87 14.66 End of year $15.27 $15.05 Exercisable $15.27 $15.05 |
| Total options outstanding and exercisable | Options outstanding Options exercisable Option price per share Number Weighted average remaining life Weighted average exercisable price Number Weighted average exercisable price $ 15.27 114,063 1.2 $15.27 114,063 $15.27 114,063 114,063 |
| Performance Share Unit Plan [Member] | |
| Disclosure of terms and conditions of share-based payment arrangement [line items] | |
| Schedule of number of stock options and weighted average exercisable price | 2025 2024 Beginning of year 636,588 830,279 Granted 183,370 178,600 Settled (236,434) (368,636) Forfeited - (4,930) Dividends reinvested 1,133 1,275 End of year 584,657 636,588 |
| Restricted Share Unit Plan [Member] | |
| Disclosure of terms and conditions of share-based payment arrangement [line items] | |
| Schedule of number of stock options and weighted average exercisable price | 2025 2024 Beginning of year 734,000 814,683 Granted 327,867 322,267 Settled (293,551) (380,273) Forfeited (11,826) (24,148) Dividends reinvested 1,469 1,471 End of year 757,959 734,000 |
| Phantom Restricted Share Unit Plan [Member] | |
| Disclosure of terms and conditions of share-based payment arrangement [line items] | |
| Schedule of number of stock options and weighted average exercisable price | 2025 2024 Beginning of year 25,560 28,000 Granted 9,121 9,096 Settled (10,704) (11,587) Forfeited - - Dividends reinvested 46 51 End of year 24,023 25,560 |
| Phantom Stock Option Plan [Member] | |
| Disclosure of terms and conditions of share-based payment arrangement [line items] | |
| Schedule of number of stock options and weighted average exercisable price | 2025 2024 Beginning of year 35,361 45,551 Granted - - Exercised (22,861) (10,190) Forfeited - - End of year 12,500 35,361 |
| Equity Settled Plan [Member] | |
| Disclosure of terms and conditions of share-based payment arrangement [line items] | |
| Inputs measurement fair value of share-based plans | Grant date Mar 1/25 Number of options granted 205,934 Average strike price $63.70 Expected forfeitures 10% Weighted average grant date fair values $63.70 |
| Cash Settled Plan [Member] | |
| Disclosure of terms and conditions of share-based payment arrangement [line items] | |
| Inputs measurement fair value of share-based plans | Phantom PSU RSU RSU Number of units 183,370 122,320 9,121 Expected vesting 139% - - Expected life of option 3 years 3 years 3 years Expected forfeitures 9% 9% 7% Weighted average measurement date fair values $63.70 $63.70 $63.70 Phantom Phantom stock options PSU RSU RSU Number of units 12,500 584,657 396,819 24,023 Expected vesting - 80% - - Average strike price $11.61 - - - Expected dividend $0.24 - - - Expected volatility 44% - - - Risk-free interest rate 2.6% - - - Expected life of option 2.2 0.9 years 1.1 years 1.0 years Expected forfeitures 7% 3% 8% 7% Weighted average measurement date fair values $114.18 $125.68 $125.68 $125.68 |