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SHARE-BASED PAYMENTS - ESOP Activity (Details) | 12 Months Ended
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Mar. 31, 2022 shares $ / shares | Mar. 31, 2021 shares $ / shares
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Granted (in dollars per share) | $ 37.24 | $ 21.48
Options outstanding, end of year (in dollars per share) | 25.07 |
Exercisable (in dollars per share) | $ 23.35 |
Stock option plan |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |
Options outstanding, beginning of year (in shares) | shares | 7,476,902 | 6,050,854
Granted (in shares) | shares | 712,477 | 2,697,713
Exercised (in shares) | shares | (1,268,660) | (687,165)
Forfeited (in shares) | shares | (134,275) | (579,700)
Expired (in shares) | shares | (3,000) | (4,800)
Options outstanding, end of year (in shares) | shares | 6,783,444 | 7,476,902
Exercisable (in shares) | shares | 3,395,732 | 2,934,364
Options outstanding, beginning of year (in dollars per share) | $ 23.39 | $ 24.25
Granted (in dollars per share) | 36.79 | 20.65
Exercised (in dollars per share) | 21.37 | 17.94
Forfeited (in dollars per share) | 28.57 | 26.28
Expired (in dollars per share) | 14.66 | 11.02
Options outstanding, end of year (in dollars per share) | 25.08 | 23.39
Exercisable (in dollars per share) | $ 23.35 | $ 21.66

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