Stock Plans - Summary of Treasury Share Transactions Under the Company's Stock Repurchase Program (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Equity [Abstract]
Treasury shares at the beginning of period, Number of Shares	5,127,000	4,945,000
Treasury shares purchased, Number of Shares	241,000	182,000
Treasury shares at the end of period, Number of Shares	5,368,000	5,127,000
Treasury shares at the beginning of period, Amount	$ (74,405)	$ (72,343)
Treasury shares purchased, Amount	(2,389)	(2,062)
Treasury shares at the end of period, Amount	$ (76,794)	$ (74,405)