Earnings per Share and Stock Plans - Summary of Option Transactions (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Shares
Exercised (in shares)	(62,060)	(32,158)	(105,132)
Stock Options
Shares
Outstanding, beginning balance (in shares)	975,171	679,785	657,814
Granted (in shares)	298,674	394,586	159,643
Exercised (in shares)	(62,060)	(32,158)	(105,132)
Cancelled (in shares)	(17,945)	(67,042)	(32,540)
Outstanding, Ending balance (in shares)	1,193,840	975,171	679,785	657,814
Exercisable (in shares)	600,072
Weighted- average Exercise Price per share
Outstanding, beginning balance (in dollars per share)	$ 34.54	$ 33.82	$ 27.45
Granted (in dollars per share)	36.19	34.91	54.06
Exercised (in dollars per share)	25.73	22.15	25.24
Cancelled (in dollars per share)	37.49	35.32	31.71
Outstanding, closing balance (in dollars per share)	35.37	$ 34.54	$ 33.82	$ 27.45
Exercisable (in dollars per share)	$ 33.47
Outstanding, weighted average remaining contractual life (in years)	6 years 11 months 4 days	7 years 1 month 17 days	7 years 29 days	7 years 3 months 14 days
Exercisable, weighted average remaining contractual life (in years)	5 years 5 months 4 days
Outstanding, aggregate intrinsic value	$ 12,392	$ 5,497	$ 15,294	$ 16,652
Exercisable, aggregate intrinsic value	$ 6,888

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.