Fair Value - Schedule of Sensitivity Analysis of Fair Value, Investment in Retained Notes and Residual Interests (Details) $ in Thousands	Sep. 30, 2025 USD ($)	Jul. 30, 2025
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 92,290
Retained Notes
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	80,204
Residual Interests
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	12,086
Discount rate
Retained Notes [Abstract]
Impact on fair value of a 50 bps adverse change	(401)
Impact on fair value of a 100 bps adverse change	(745)
Residual Interests [Abstract]
Impact on fair value of a 25 bps adverse change	(53)
Impact on fair value of a 50 bps adverse change	$ (105)
Discount rate | Residual Interests
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt securities, available-for-sale, measurement input	0.1500	0.1500
Prepayment speed
Residual Interests [Abstract]
Impact on fair value of a 1.5% absolute prepayment speed adverse change	$ (114)
Impact on fair value of a 1.6% absolute prepayment speed adverse change	$ (216)
Prepayment speed | Residual Interests
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt securities, available-for-sale, measurement input	0.0140	0.0140
Expected cumulative lifetime losses
Residual Interests [Abstract]
Impact on fair value of a 25 bps adverse change	$ (221)
Impact on fair value of a 50 bps adverse change	$ (436)
Weighted-average life (in years) | Retained Notes
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt securities, available-for-sale, measurement input	1.98