Income Taxes - Reconciliation to Federal Statutory Rate (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2023
Income Tax Disclosure [Abstract]
Federal income taxes at statutory rate	$ 36,588	$ 78,538	$ 93,976
State income taxes, net of federal income tax benefit	11,612	19,008	16,847
Impact of foreign rate differences	923	(1,672)	1,052
Net change in valuation allowance	(693)	954	443
Equity-based compensation	(2,086)	(3,024)	(1,942)
Other permanent items	3,219	3,704	2,670
GILTI	132	39	1,452
Goodwill impairment	8,915	0	0
Other	216	540	14
Total provision for income taxes	$ 58,826	$ 98,087	$ 114,512