Finance Receivables, Net - Loan Modifications (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2026	Jan. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 196,412	$ 194,008	$ 361,581	$ 365,694
% of Portfolio	13.40%	13.00%	24.60%	24.60%
Term extension
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 194,053	$ 191,054	$ 352,995	$ 357,025
% of Portfolio	13.20%	12.90%	24.00%	24.00%
Weighted average term increase from modification	1 year 4 months 13 days	1 year 7 months 2 days	1 year 9 months	1 year 11 months 26 days
Term extension | Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 147,604	$ 150,835	$ 257,999	$ 264,933
Term extension | 3-29 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	39,218	34,321	73,529	71,318
Term extension | 30 - 60 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	6,553	5,385	16,914	14,557
Term extension | 61 - 90 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	678	513	4,027	4,235
Term extension | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	0	0	526	1,981
Combination
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 2,359	$ 2,954	$ 8,586	$ 8,669
% of Portfolio	0.20%	0.10%	0.60%	0.60%
Weighted average term increase from modification	20 months 13 days	20 months 29 days	20 months 27 days	21 months 8 days
Weighted average interest rate	9.28%	8.76%	9.02%	8.43%
Combination | 3-29 Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 610	$ 850	$ 3,417	$ 3,454
Combination | 30 - 60 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	637	703	1,651	1,698
Combination | 61 - 90 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	623	795	844	1,073
Combination | 90+ Days Past Due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 489	$ 606	$ 2,674	$ 2,444