Fair Value Measurements - Schedule of Fair Value Measurement Input and Valuation Techniques of Installment Financing Receivables (Detail)	Dec. 31, 2023	Dec. 31, 2022
Interest rate on finance receivables
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Installment financing receivables, fair value measurement	1.5615	1.5239
Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Installment financing receivables, fair value measurement	0.2634	0.2589
Servicing cost
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Installment financing receivables, fair value measurement	0.0296	0.0501
Remaining life
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Installment financing receivables, fair value measurement	0.6	0.59
Default rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Installment financing receivables, fair value measurement	0.2563	0.2027
Accrued interest
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Installment financing receivables, fair value measurement	0.0434	0.0393
Prepayment rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Installment financing receivables, fair value measurement	0.2090	0.2133