Note C - Finance Receivables, Net - Changes in the Finance Receivables Allowance for Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
Jul. 31, 2022	Jul. 31, 2021
Balance	$ 247,207	$ 184,418
Provision for credit losses	82,903	54,108
Charge-offs, net of recovered collateral	(64,292)	(36,652)
Balance	$ 265,818	$ 201,874

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Name:	us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant