Income Taxes (Schedule Of Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2021
CURRENT
Federal	$ 39,180	$ 8,748	$ 25,683
State	12,937	3,295	5,639
Foreign	998	417	1,018
Total current expense	53,115	12,460	32,340
DEFERRED
Federal	(20,195)	(21,316)	(10,741)
State	(3,869)	(4,049)	(1,896)
Foreign	(88)	(352)	(203)
Total deferred benefit	(24,152)	(25,717)	(12,840)
Total expense (benefit)	28,963	(13,257)	19,500
Other comprehensive income (loss)	(50)	21,944	(1,156)
Total comprehensive income tax expense	$ 28,913	$ 8,687	$ 18,344