Finance Receivables, Net - Summary of Finance Receivables that are Current and Past Due (Details) - USD ($) $ in Thousands	Jul. 31, 2026	Apr. 30, 2026	Jul. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 1,190,950	$ 1,413,059	$ 1,515,681
%	100.00%	100.00%	100.00%
Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 929,249	$ 1,090,757	$ 1,206,214
%	78.02%	77.19%	79.58%
3 - 29 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 207,564	$ 264,121	$ 247,549
%	17.43%	18.69%	16.33%
30 - 60 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 35,956	$ 39,541	$ 42,080
%	3.02%	2.80%	2.78%
61 - 90 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 9,710	$ 11,676	$ 12,007
%	0.82%	0.83%	0.79%
> 90 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 8,471	$ 6,964	$ 7,831
%	0.71%	0.49%	0.52%