Leases - Summary of Components of Operating Lease Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021
Leases [Abstract]
Operating lease costs	$ 2,800	$ 6,328
Short-term lease costs		8
Variable lease costs	649	774
Less: Sublease income	(962)	(561)
Total operating lease costs	$ 2,487	$ 6,549	$ 9,190