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Schedule of Earnings Per Share (Detail) - shares | 12 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023
Earnings Per Share [Abstract] |  |  |
Weighted-Average Shares of Common Stock Outstanding | 33,378,050 | 34,811,560 | 36,798,354
Assumed Exercise of Outstanding Dilutive Options | 218,434 | 304,889 | 418,659
Less Shares Repurchased from Proceeds of Assumed Exercised Options | (82,734) | (157,457) | (290,590)
Restricted Stock Units | 132,645 | 138,879 | 126,519
Weighted-Average Common Stock and Dilutive Securities Outstanding | 33,646,395 | 35,097,871 | 37,052,942

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