Note C - Finance Receivables, Net - Changes in the Finance Receivables Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Oct. 31, 2022	Jul. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021
Balance		$ 237,823		$ 237,823	$ 177,267
Provision for credit losses	$ 88,828	$ 76,241	$ 56,491	165,068	106,341
Charge-offs, net of recovered collateral and deferred ancillary product revenue				(130,161)	(74,651)
Balance	$ 272,730		$ 208,957	$ 272,730	$ 208,957