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The grant-date intrinsic value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Gross number of share options (or share units) granted during the period.

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Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
	May 02, 2023	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Subsequent Event [Line Items]
Granted (in shares)		197,600	234,200	249,900
Restricted Stock Units (RSUs)
Subsequent Event [Line Items]
Granted (in shares)		151,000.0	170,800	179,700
Award vesting period		3 years
Stock Options \| Minimum
Subsequent Event [Line Items]
Award vesting period		3 years
Subsequent Event
Subsequent Event [Line Items]
Stock repurchase program, authorized amount	$ 25.0
Subsequent Event \| Performance Units
Subsequent Event [Line Items]
Granted (in shares)	75,182
Award vesting period	3 years
Subsequent Event \| Restricted Stock Units (RSUs)
Subsequent Event [Line Items]
Granted (in shares)	67,578
Vesting rights (as percent)	33.30%
Award vesting period	3 years
Subsequent Event \| Restricted Stock Units (RSUs) \| Minimum
Subsequent Event [Line Items]
Award vesting period	3 years
Subsequent Event \| Restricted Stock Units (RSUs) \| Maximum
Subsequent Event [Line Items]
Award vesting period	5 years
Subsequent Event \| Stock Options
Subsequent Event [Line Items]
Granted (in shares)	128,149
Vesting rights (as percent)	33.30%
Award vesting period	3 years
Award term	ten years
Award grant exercise price (in dollars per share)	$ 61.73