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Significant Accounting Policies - Additional Information (Detail) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) segment | Sep. 30, 2022 USD ($) | Dec. 31, 2022 USD ($)
Accounting Policies [Abstract] |  |  |  |  |
Number of reportable segments | segment |  |  | 1 |  |
Finance receivables originated through the bank partnership arrangements, percentage |  |  | 96.00% | 94.00% |
Finance receivables originated through the bank partnership arrangements | $ 10.8 |  | $ 10.8 |  | $ 11.2
Accrual period for financing receivables |  |  | 60 days |  |
Valuation allowance on being held for sale |  |  | $ 2.3 |  |
Allowance for credit losses | 2.6 |  | 2.6 |  |
Development and capitalized software costs | 2.2 | $ 3.1 | 6.7 | $ 9.9 |
Capitalized software costs, amortization expense | $ 2.9 | $ 3.3 | $ 9.2 | $ 9.4 |
Existing Equity Holders |  |  |  |  |
Schedule Of Reverse Recapitalization [Line Items] |  |  |  |  |
Ownership interest retained | 84.30% |  | 84.30% |  | 86.50%

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