Finance Receivables, Net - Summary of Finance Receivables that are Current and Past Due (Details) - USD ($) $ in Thousands	Oct. 31, 2025	Apr. 30, 2025	Oct. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 1,515,413	$ 1,509,155	$ 1,473,794
%	100.00%	100.00%	100.00%
Current
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 1,270,535	$ 1,208,330	$ 1,188,852
%	83.84%	80.06%	80.66%
3 - 29 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 197,294	$ 249,263	$ 233,486
%	13.02%	16.52%	15.84%
30 - 60 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 32,257	$ 34,407	$ 35,039
%	2.13%	2.28%	2.38%
61 - 90 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 8,802	$ 11,461	$ 10,083
%	0.58%	0.76%	0.68%
> 90 days past due
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal Balance	$ 6,525	$ 5,694	$ 6,334
%	0.43%	0.38%	0.43%