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Fair Value of Financial Instruments - Schedule of Quantitative Information About Significant Unobservable Inputs (Details) - Level 3	Mar. 31, 2025	Dec. 31, 2024
Minimum | Remaining cumulative charge-offs
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	0	0
Minimum | Remaining cumulative prepayments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	0.0204	0.0153
Minimum | Average life (years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	0.37	0.44
Minimum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	0.1611	0.1729
Maximum | Remaining cumulative charge-offs
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	0.5924	0.3092
Maximum | Remaining cumulative prepayments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	0.2623	0.4263
Maximum | Average life (years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	1.77	2.05
Maximum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	0.1611	0.1729
Weighted Average | Remaining cumulative charge-offs
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	0.1575	0.1043
Weighted Average | Remaining cumulative prepayments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	0.1481	0.2116
Weighted Average | Average life (years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	1.56	1.45
Weighted Average | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Derivative asset, measurement input	0.1611	0.1729
Personal Loans | Minimum | Remaining cumulative charge-offs
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.0920	0.0892
Personal Loans | Minimum | Remaining cumulative prepayments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.0000	0.0000
Personal Loans | Minimum | Average life (years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.28	0.29
Personal Loans | Minimum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.0769	0.0792
Personal Loans | Maximum | Remaining cumulative charge-offs
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.5350	0.5472
Personal Loans | Maximum | Remaining cumulative prepayments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.3723	0.3455
Personal Loans | Maximum | Average life (years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	1.65	1.74
Personal Loans | Maximum | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.0769	0.0792
Personal Loans | Weighted Average | Remaining cumulative charge-offs
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.1183	0.1168
Personal Loans | Weighted Average | Remaining cumulative prepayments
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.2533	0.2470
Personal Loans | Weighted Average | Average life (years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	1.10	1.11
Personal Loans | Weighted Average | Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Unobservable inputs for unsecured personal loan portfolio	0.0769	0.0792

X

- Definition

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+ References

No definition available.

+ Details

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X

- Definition

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+ References

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
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-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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