Leases - Component of Lease Cost and Consolidated Balance Sheet Amounts (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Mar. 31, 2023
Leases [Abstract]
Operating lease cost	$ 742	$ 498	$ 1,424	$ 989
Short-term lease cost	298	139	384	275
Variable lease cost	178	189	363	374
Total lease cost	1,218	$ 826	2,171	$ 1,638
Operating leases
Operating lease ROU assets	12,071		12,071		$ 11,666
Operating lease liabilities	$ 12,917		$ 12,917		$ 12,435
Weighted-average remaining lease term
Operating leases	12 years 2 months		12 years 2 months		12 years 10 months
Weighted-average discount rate
Operating leases	5.04%		5.04%		4.95%