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FAIR VALUE - Fair Value of Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Total gains (losses): |  |  |  |
Proceeds from principal repayments and maturities of available-for-sale debt securities |  |  | $ 580,359 | $ 293,931
Other Debt Obligations [Member] |  |  |  |
Total gains (losses): |  |  |  |
Proceeds from principal repayments and maturities of available-for-sale debt securities |  |  | 500 |
Available-for-Sale Securities [Member] | Fair Value Inputs Level 3 [Member] |  |  |  |
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] |  |  |  |
Beginning balance | $ 6,633 | $ 6,275 | 6,815 | 6,200
Total gains (losses): |  |  |  |
Included in other comprehensive income (unrealized) | 245 | 175 | 291 | 414
Included in earnings (unrealized) | 3 | (60) | 8 | 9
Purchases | 0 | 1,000 | 0 | 1,000
Principal repayments and amortization | (1,024) | (291) | (1,257) | (524)
Ending balance | $ 5,857 | $ 7,099 | $ 5,857 | $ 7,099

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