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SHARE-BASED PAYMENTS - Narrative (Details)
 12 Months Ended
Mar. 31, 2022
numberOfCategories
$ / shares
shares
Mar. 31, 2021
$ / shares
shares
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Number of categories | numberOfCategories 2  
Exercisable options (in years) 4 years  
Number of shares (in shares) | shares 9,936,443 11,205,103
Weighted average market share price for stock options (in dollars per share) | $ / shares $ 38.13 $ 30.19
Number of trading days (in days) 20 days  
Vesting period (in years) 3 years  
Shares vested and outstanding, granted under previous plans (in shares) | shares 922,665 943,250
Top of range    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Exercisable options (in years) 7 years  
Stock option plan    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Weighted average fair value of stock options (in dollars per share) | $ / shares $ 11.53 $ 5.22
Stock purchase plan    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Employer matching contribution, matching, percentage 50.00%  
Employer matching contribution, percent of employees' gross pay (in percent) 3.00%  
Performance share unit (PSU) plan | Top of range    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Share-based payment arrangement (in percent) 200.00%  
Performance share unit (PSU) plan | Bottom of range    
Disclosure of terms and conditions of share-based payment arrangement [line items]    
Share-based payment arrangement (in percent) 0.00%