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Stock Acquisition Rights, Stock Options and Warrants - Summary of Performance Stock Options (Details) - $ / shares				12 Months Ended
	Sep. 07, 2021	Aug. 23, 2021	Feb. 28, 2020	Mar. 31, 2022	Mar. 31, 2020
Options
Options granted (in shares)	65,768	100,000
Weighted Average Exercise Price
Granted (in dollars per share)	$ 60.92	$ 57.00
Performance-Based Stock Options
Options
Beginning options outstanding (in shares)				48,417
Options granted (in shares)			67,562	0	82,197
Options exercised (in shares)				(14,635)
Options forfeited/expired (in shares)				0
Ending options outstanding (in shares)				33,782
Weighted Average Exercise Price
Beginning outstanding (in dollars per share)				$ 46.85
Granted (in dollars per share)				0
Exercised (in dollars per share)				46.85
Forfeited/expired (in dollars per share)				0
Ending outstanding (in dollars per share)				$ 46.85

X

- Definition

For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

+ References

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Weighted average price of options that were either forfeited or expired.

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

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Number of options outstanding, including both vested and non-vested options.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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