Leases - Components of Lease Costs (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022
Leases [Abstract]
Operating lease costs	$ 4,995	$ 8,359	$ 5,587
Short term lease costs	1,537	1,624	1,538
Variable lease costs	3,959	3,494	1,892
Sublease income	(105)	(26)	0
Total lease costs, net	$ 10,387	$ 13,451	$ 9,017