Leases - Components of Lease Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2022
Finance Lease Costs [Abstract]
Finance Lease, Right-of-Use Asset, Amortization	$ 1,605	$ 1,479	$ 1,065
Finance Lease, Interest Expense	212	190	84
Finance lease cost	1,817	1,669	1,149
Operating Lease, Cost	46,956	48,901	53,092
Short-Term Lease, Cost	876	833	966
Variable Lease, Cost	13,324	11,157	10,986
Operating Lease, Impairment Loss	1,629	5,471	7,392
Sublease Income	(4,359)	(3,420)	(1,119)
Lease, Cost, Total	$ 60,243	$ 64,611	$ 72,466