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Finance Receivables, Net - Additional Information (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
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Jul. 31, 2025 USD ($) loanPool class | Jul. 31, 2024 USD ($) | Apr. 30, 2025 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Number of loan classes | class | 1 |  |
Number of loan pools | loanPool | 2 |  |
Finance receivables, net of allowance for credit losses of $326,070 and $323,100 | $ 1,183,452 |  | $ 1,180,673
Amounts recovered from previously written-off accounts | $ 925 | $ 772 |
Financing receivable, allowance for credit loss to outstanding (in percent) | 23.35% |  | 23.25%
Provision for credit losses resulting benefit from increase (decrease) |  |  | $ 3,000
Increase in total dollars collected per active customer (in percent) | 4.10% |  |
Collections of average financing receivables (percent) | 0.10% |  |
Contract modifications, principal amount | $ 194,940 | $ 202,561 |
Financing receivables (in percent) | 12.90% | 13.80% |
Loans defaulted within 12 months of modification | $ 4,600 | $ 4,900 |
Average originating contract term (in months) (Month) | 44 months 27 days | 44 months 9 days |
Portfolio weighted average contract term, including modifications (in months) | 48 months 9 days | 48 months 3 days |
Term extension |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Contract modifications, principal amount | $ 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 |
Combination |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Contract modifications, principal amount | $ 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 |
Minimum |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Fixed interest rate (in percent) | 12.99% |  |
Payments over period (in months) | 18 months |  |
Maximum |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |
Fixed interest rate (in percent) | 23.00% |  |
Payments over period (in months) | 79 months |  |

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