v3.26.1
Share-based compensation - Summary of Stock Options Outstanding and Exercisable (Details)
12 Months Ended
Mar. 31, 2026
shares
$ / shares
Mar. 31, 2025
shares
$ / shares
Mar. 31, 2024
shares
$ / shares
Disclosure of range of exercise prices of outstanding share options [line items]      
Number of share options outstanding (in shares) | shares 10,204,326 10,322,548 11,083,212
Weighted average remaining contractual life of outstanding share options (years) 4 years 1 month 17 days 4 years 6 months 25 days  
Weighted average exercise price, options outstanding (in USD per share) $ 16.85 $ 22.12 $ 24.73
Number of share options exercisable (in shares) | shares 5,858,817 5,124,556  
Weighted average remaining contractual life of share options exercisable (years) 3 years 1 month 13 days 3 years 10 months 13 days  
Weighted average exercisable price, options expired (in USD per share) $ 19.91 $ 26.59  
Exercise price range one      
Disclosure of range of exercise prices of outstanding share options [line items]      
Number of share options outstanding (in shares) | shares 1,669,455 2,449,818  
Weighted average remaining contractual life of outstanding share options (years) 6 years 1 month 2 days 5 years 29 days  
Weighted average exercise price, options outstanding (in USD per share) $ 10.41 $ 11.93  
Number of share options exercisable (in shares) | shares 323,076 1,059,585  
Weighted average remaining contractual life of share options exercisable (years) 5 years 5 months 12 days 4 years 5 months 26 days  
Weighted average exercisable price, options expired (in USD per share) $ 10.41 $ 11.61  
Exercise price range one | Bottom of range      
Disclosure of range of exercise prices of outstanding share options [line items]      
Exercise price of outstanding share options (in USD per share) 2.17 2.17  
Exercise price range one | Top of range      
Disclosure of range of exercise prices of outstanding share options [line items]      
Exercise price of outstanding share options (in USD per share) $ 10.68 $ 12.82  
Exercise price range two      
Disclosure of range of exercise prices of outstanding share options [line items]      
Number of share options outstanding (in shares) | shares 1,564,319 2,176,643  
Weighted average remaining contractual life of outstanding share options (years) 6 years 1 month 6 days 5 years 9 months 25 days  
Weighted average exercise price, options outstanding (in USD per share) $ 11.11 $ 13.92  
Number of share options exercisable (in shares) | shares 376,807 624,814  
Weighted average remaining contractual life of share options exercisable (years) 5 years 9 months 21 days 5 years 6 months 25 days  
Weighted average exercisable price, options expired (in USD per share) $ 11.24 $ 13.83  
Exercise price range two | Bottom of range      
Disclosure of range of exercise prices of outstanding share options [line items]      
Exercise price of outstanding share options (in USD per share) 10.69 12.83  
Exercise price range two | Top of range      
Disclosure of range of exercise prices of outstanding share options [line items]      
Exercise price of outstanding share options (in USD per share) $ 12.61 $ 14.19  
Exercise price range three      
Disclosure of range of exercise prices of outstanding share options [line items]      
Number of share options outstanding (in shares) | shares 2,315,709 1,835,467  
Weighted average remaining contractual life of outstanding share options (years) 3 years 5 months 12 days 5 years 3 months 7 days  
Weighted average exercise price, options outstanding (in USD per share) $ 13.19 $ 16.45  
Number of share options exercisable (in shares) | shares 1,727,108 865,102  
Weighted average remaining contractual life of share options exercisable (years) 3 years 1 month 28 days 4 years 10 months 24 days  
Weighted average exercisable price, options expired (in USD per share) $ 13.18 $ 17.16  
Exercise price range three | Bottom of range      
Disclosure of range of exercise prices of outstanding share options [line items]      
Exercise price of outstanding share options (in USD per share) 12.62 14.20  
Exercise price range three | Top of range      
Disclosure of range of exercise prices of outstanding share options [line items]      
Exercise price of outstanding share options (in USD per share) $ 14.52 $ 20.93  
Exercise price range four      
Disclosure of range of exercise prices of outstanding share options [line items]      
Number of share options outstanding (in shares) | shares 2,483,234 1,976,335  
Weighted average remaining contractual life of outstanding share options (years) 4 years 2 months 23 days 2 years 10 months 9 days  
Weighted average exercise price, options outstanding (in USD per share) $ 15.87 $ 23.30  
Number of share options exercisable (in shares) | shares 1,562,201 1,435,603  
Weighted average remaining contractual life of share options exercisable (years) 3 years 9 months 3 days 2 years 5 months 1 day  
Weighted average exercisable price, options expired (in USD per share) $ 16.37 $ 23.83  
Exercise price range four | Bottom of range      
Disclosure of range of exercise prices of outstanding share options [line items]      
Exercise price of outstanding share options (in USD per share) 14.53 20.94  
Exercise price range four | Top of range      
Disclosure of range of exercise prices of outstanding share options [line items]      
Exercise price of outstanding share options (in USD per share) $ 20.74 $ 30.75  
Exercise price range five      
Disclosure of range of exercise prices of outstanding share options [line items]      
Number of share options outstanding (in shares) | shares 2,171,609 1,884,285  
Weighted average remaining contractual life of outstanding share options (years) 1 year 9 months 18 days 3 years 6 months 21 days  
Weighted average exercise price, options outstanding (in USD per share) $ 30.97 $ 49.14  
Number of share options exercisable (in shares) | shares 1,869,625 1,139,452  
Weighted average remaining contractual life of share options exercisable (years) 1 year 7 months 9 days 3 years 4 months 24 days  
Weighted average exercisable price, options expired (in USD per share) $ 32.48 $ 58.15  
Exercise price range five | Bottom of range      
Disclosure of range of exercise prices of outstanding share options [line items]      
Exercise price of outstanding share options (in USD per share) 20.75 30.76  
Exercise price range five | Top of range      
Disclosure of range of exercise prices of outstanding share options [line items]      
Exercise price of outstanding share options (in USD per share) $ 93.45 $ 93.45