Note C - Finance Receivables, Net - Changes in the Finance Receivables Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2022	Jan. 31, 2021
Balance			$ 184,418	$ 155,041
Provision for credit losses	$ 66,741	$ 47,639	181,796	127,585
Charge-offs, net of recovered collateral			(134,248)	(97,046)
Balance	$ 231,966	$ 185,580	$ 231,966	$ 185,580