FAIR VALUE MEASUREMENT - Schedule of Significant Unobservable Inputs (Details) - Level 3 - Valuation Technique, Discounted Cash Flow	Jun. 30, 2026	Dec. 31, 2025
Minimum \| Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt securities, available-for-sale, measurement input	0.080	0.050
Minimum \| Loss rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt securities, available-for-sale, measurement input	0.055	0.049
Minimum \| Prepayment rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt securities, available-for-sale, measurement input	0.000	0.000
Maximum \| Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt securities, available-for-sale, measurement input	0.172	0.150
Maximum \| Loss rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt securities, available-for-sale, measurement input	0.352	0.331
Maximum \| Prepayment rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt securities, available-for-sale, measurement input	0.440	0.400
Weighted Average \| Discount rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt securities, available-for-sale, measurement input	0.146	0.150
Weighted Average \| Loss rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt securities, available-for-sale, measurement input	0.162	0.170
Weighted Average \| Prepayment rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Debt securities, available-for-sale, measurement input	0.132	0.142