Leases (Details 2) - USD ($) $ in Millions	12 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2023
Leases [Abstract]
Operating cash flows from operating leases	$ 64.4	$ 49.2	$ 44.3
Operating cash flows from finance leases	0.6	0.5	0.1
Financing cash flows from finance leases	3.4	3.3	1.7
Right-of-use assets obtained in exchange for operating lease liabilities	10.2	98.4	37.9
Right-of-use assets obtained in exchange for finance lease liabilities	$ 4.7	$ 10.9	$ 1.5