Revenue Recognition - Additional Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Residual Interest, 2022-1 Securitization
Disaggregation Of Revenue [Line Items]
Percentage of servicing fees earned on outstanding principal balance of finance receivable	4.00%
Residual Interest, 2022-2 and 2023-1 Securitization
Disaggregation Of Revenue [Line Items]
Percentage of servicing fees earned on outstanding principal balance of finance receivable	3.25%
Other Liabilities
Disaggregation Of Revenue [Line Items]
Reserve for chargebacks	$ 10.9	$ 11.8
Other Assets
Disaggregation Of Revenue [Line Items]
Cumulative profit sharing payment recognized	$ 11.2	$ 22.3