Schedule of Earnings Per Share (Detail) - shares	12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share [Abstract]
Weighted-Average Shares of Common Stock Outstanding	34,811,560	36,798,354	40,547,048
Assumed Exercise of Outstanding Dilutive Options	304,889	418,659	539,309
Less Shares Repurchased from Proceeds of Assumed Exercised Options	(157,457)	(290,590)	(343,917)
Restricted Stock Units	138,879	126,519	187,272
Weighted-Average Common Stock and Dilutive Securities Outstanding	35,097,871	37,052,942	40,929,712