Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 56,269	$ 48,283	$ 42,876
Operating cash flows from finance leases	7,187	8,179	11,164
Financing cash flows from finance leases	35,845	31,365	30,371
Right-of-use assets obtained in exchange for lease obligations
Operating leases	73,083	71,252	37,513
Finance leases	$ 59,720	$ 41,699	$ 27,400