v3.26.1
Share-based compensation - Changes in Stock Options (Details)
 3 Months Ended
Mar. 31, 2026
shares
$ / shares
Mar. 31, 2025
shares
$ / shares
Share-Based Payment Arrangements [Abstract]    
Number of options outstanding - beginning of period (in shares) | shares 1,019,930 827,642
Number of options granted (in shares) | shares 0 264,402
Number of options forfeited (in shares) | shares (45,713) (67,940)
Number of options exercised (in shares) | shares 0 (6,051)
Number of options expired (in shares) | shares (8,310) (146)
Number of options outstanding - end of period (in shares) | shares 965,907 1,017,907
Number of options exercisable (in shares) | shares 611,675 520,851
Weighted average exercise price, options outstanding - beginning of period (in canadian dollars per share) | $ / shares $ 33.78 $ 34.11
Weighted average exercise price, options granted (in canadian dollars per share) | $ / shares 0 44.76
Weighted average exercise price, options forfeited (in canadian dollars per share) | $ / shares 49.32 53.85
Weighted average exercise price, options exercised (in canadian dollars per share) | $ / shares 0 48.22
Weighted average exercise price, options expired (in canadian dollars per share) | $ / shares 51.74 86.38
Weighted average exercise price, options outstanding - end of period (in canadian dollars per share) | $ / shares 32.89 35.47
Weighted average exercise price, options exercisable (in canadian dollars per share) | $ / shares $ 25.77 $ 21.40