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v3.23.1

Share-based compensation plans (Inputs used in the measurement - Cash) (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 CAD ($) shares yr $ / shares | Dec. 31, 2021 shares $ / shares | Dec. 31, 2020 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 | 3,053,571 | 3,458,001 | 6,158,539
Average strike price, reporting date | $ 15.75 | $ 16.85 |
Performance Share Unit Plan [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number of options granted | shares | 238,610 |  |
Expected vesting | 92.00% |  |
Expected dividend | $ | $ 0 |  |
Expected life of option | yr | 3 |  |
Expected forfeitures | 9.00% |  |
Weighted average measurement date fair values | $ 31.17 |  |
Number of options, reporting date | shares | 1,255,255 |  |
Expected vesting, reporting date | 72.00% |  |
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 | 0.7 |  |
Expected forfeitures, reporting date | 2.00% |  |
Weighted average measurement date fair values | $ 30.69 |  |
Restricted Share Unit Plan [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number of options granted | shares | 159,140 |  |
Expected vesting | 0.00% |  |
Expected dividend | $ | $ 0 |  |
Expected life of option | yr | 3 |  |
Expected forfeitures | 9.00% |  |
Weighted average measurement date fair values | $ 31.17 |  |
Number of options, reporting date | shares | 815,098 |  |
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 | 0.8 |  |
Expected forfeitures, reporting date | 8.00% |  |
Weighted average measurement date fair values | $ 30.69 |  |
Phantom Stock Option Plan [member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number of options, reporting date | shares | 94,135 |  |
Expected vesting, reporting date | 0.00% |  |
Average strike price, reporting date | $ 12.55 | $ 13.88 |
Expected dividend, reporting date | $ | $ 0.12 |  |
Expected volatility, reporting date | 53.00% |  |
Risk free interest rate, reporting date | 3.80% |  |
Expected life of option, reporting date | yr | 3 |  |
Expected forfeitures, reporting date | 7.00% |  |
Weighted average measurement date fair values | $ 20.22 |  |
Phantom Restricted Share Unit Plan [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |
Number of options granted | shares | 10,142 |  |
Expected vesting | 0.00% |  |
Expected dividend | $ | $ 0.08 |  |
Expected life of option | yr | 3 |  |
Expected forfeitures | 7.00% |  |
Weighted average measurement date fair values | $ 31.17 |  |
Number of options, reporting date | shares | 21,148 |  |
Expected vesting, reporting date | 0.00% |  |
Average strike price, reporting date | $ 0 |  |
Expected dividend, reporting date | $ | $ 0.12 |  |
Expected volatility, reporting date | 0.00% |  |
Risk free interest rate, reporting date | 0.00% |  |
Expected life of option, reporting date | yr | 1.4 |  |
Expected forfeitures, reporting date | 8.00% |  |
Weighted average measurement date fair values | $ 30.69 |  |

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