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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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Amount of expense for amortization of capitalized computer software costs.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Research and development expense during the period related to the costs of developing and achieving technological feasibility of a computer software product to be sold, leased, or otherwise marketed.

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