Finance Receivables, Net - Summary of Finance Receivables that are Current and Past Due (Details) - USD ($) $ in Thousands	Jul. 31, 2025	Apr. 30, 2025	Jul. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 1,515,681	$ 1,509,155	$ 1,465,259
%	100.00%	100.00%	100.00%
Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 1,206,214	$ 1,208,330	$ 1,155,006
%	79.58%	80.06%	78.82%
3 - 29 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 247,549	$ 249,263	$ 259,145
%	16.33%	16.52%	17.69%
30 - 60 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 42,080	$ 34,407	$ 38,035
%	2.78%	2.28%	2.60%
61 - 90 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 12,007	$ 11,461	$ 7,463
%	0.79%	0.76%	0.51%
> 90 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 7,831	$ 5,694	$ 5,610
%	0.52%	0.38%	0.38%