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Share-based compensation plans (Inputs used in the measurement - Cash) (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 CAD ($) yr shares $ / shares | Dec. 31, 2023 shares $ / shares | Dec. 31, 2022 shares
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number of options granted | shares | 0 | 0 |
Average strike price | $ 0 | $ 0 |
Number of options, reporting date | shares | 259,958 | 1,396,289 | 3,053,571
Average strike price, reporting date | $ 15.05 | $ 14.73 |
Performance Share Unit Plan [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number of options granted | shares | 178,600 |  |
Expected vesting | 78.00% |  |
Expected life of option | yr | 3 |  |
Expected forfeitures | 9.00% |  |
Weighted average measurement date fair values | $ 55.00 |  |
Number of options, reporting date | shares | 636,588 |  |
Expected vesting, reporting date | 65.00% |  |
Average strike price, reporting date | $ 0 |  |
Expected dividend, reporting date | $ | $ 0 |  |
Expected volatility, reporting date | 0.00% |  |
Risk free interest rate, reporting date | 0.00% |  |
Expected life of option, reporting date | yr | 0.9 |  |
Expected forfeitures, reporting date | 4.00% |  |
Weighted average measurement date fair values | $ 73.91 |  |
Restricted Share Unit Plan [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number of options granted | shares | 119,010 |  |
Expected vesting | 0.00% |  |
Expected life of option | yr | 3 |  |
Expected forfeitures | 9.00% |  |
Weighted average measurement date fair values | $ 55.00 |  |
Number of options, reporting date | shares | 423,453 |  |
Expected vesting, reporting date | 0.00% |  |
Average strike price, reporting date | $ 0 |  |
Expected dividend, reporting date | $ | $ 0 |  |
Expected volatility, reporting date | 0.00% |  |
Risk free interest rate, reporting date | 0.00% |  |
Expected life of option, reporting date | yr | 1.0 |  |
Expected forfeitures, reporting date | 8.00% |  |
Weighted average measurement date fair values | $ 73.91 |  |
Phantom Stock Option Plan [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number of options, reporting date | shares | 35,361 |  |
Expected vesting, reporting date | 0.00% |  |
Average strike price, reporting date | $ 12.48 | $ 12.29 |
Expected dividend, reporting date | $ | $ 0.16 |  |
Expected volatility, reporting date | 43.00% |  |
Risk free interest rate, reporting date | 2.90% |  |
Expected life of option, reporting date | yr | 2.9 |  |
Expected forfeitures, reporting date | 7.00% |  |
Weighted average measurement date fair values | $ 61.98 |  |
Phantom Restricted Share Unit Plan [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number of options granted | shares | 9,096 |  |
Expected vesting | 0.00% |  |
Expected life of option | yr | 3 |  |
Expected forfeitures | 7.00% |  |
Weighted average measurement date fair values | $ 55.00 |  |
Number of options, reporting date | shares | 25,560 |  |
Expected vesting, reporting date | 0.00% |  |
Average strike price, reporting date | $ 0 |  |
Expected dividend, reporting date | $ | $ 0.16 |  |
Expected volatility, reporting date | 0.00% |  |
Risk free interest rate, reporting date | 0.00% |  |
Expected life of option, reporting date | yr | 1.0 |  |
Expected forfeitures, reporting date | 7.00% |  |
Weighted average measurement date fair values | $ 73.91 |  |

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