Fair Value of Financial Instruments - Schedule of Quantitative Information About Significant Unobservable Inputs (Details) - Level 3 - Personal Loans	Jun. 30, 2026	Dec. 31, 2025
Minimum \| Remaining cumulative charge-offs
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.1013	0.1010
Minimum \| Remaining cumulative prepayments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.0374	0.0000
Minimum \| Average life (years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.39	0.28
Minimum \| Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.0630	0.0626
Maximum \| Remaining cumulative charge-offs
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.9290	0.5058
Maximum \| Remaining cumulative prepayments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.3808	0.3829
Maximum \| Average life (years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	1.30	1.64
Maximum \| Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.0630	0.0626
Weighted Average \| Remaining cumulative charge-offs
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.1222	0.1228
Weighted Average \| Remaining cumulative prepayments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.2367	0.2490
Weighted Average \| Average life (years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	1.04	1.06
Weighted Average \| Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.0630	0.0626