Finance Receivables, Net - Loan Modifications (Details) - USD ($) $ in Thousands	3 Months Ended
Jul. 31, 2025	Jul. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 194,940	$ 202,561
Financing receivables (in percent)	12.90%	13.80%
Term extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 192,122	$ 199,667
Financing receivables (in percent)	12.70%	13.60%
Weighted average term increase from modification	1 month 12 days	1 month 18 days
Term extension \| Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 143,015	$ 143,949
Term extension \| 3-29 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	42,693	48,961
Term extension \| 30 - 60 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	5,745	6,234
Term extension \| 61 - 90 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	669	523
Term extension \| 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	0	0
Combination
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 2,818	$ 2,894
Financing receivables (in percent)	0.20%	0.20%
Weighted average term increase from modification	10 months 6 days	12 months 15 days
Payments Received	$ 2,818	$ 2,894
Combination \| Payment Received in Last 30 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Payments Received	772	871
Combination \| Payment Received in Last 31-60 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Payments Received	753	589
Combination \| Payment Received in Last 61-90 Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Payments Received	605	844
Combination \| Payment Received in Last 90+ Days
Accounts, Notes, Loans and Financing Receivable [Line Items]
Payments Received	$ 688	$ 590
Combination \| Minimum
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest rate decrease from modification	8.14%	7.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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