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DERIVATIVES AND HEDGING ACTIVITIES - Fair Value Hedges Narrative (Details) - Fair value hedges - Designated as Hedging Instrument - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
DERIVATIVES AND HEDGING ACTIVITIES |  |
Clearing house related to the fair value derivatives | $ 2,700 | $ 6,500
Interest Rate Swaps |  |
DERIVATIVES AND HEDGING ACTIVITIES |  |
Average fixed interest rate | 4.82% |
Mortgage loans - Amortized Cost | $ 692,200 | 729,500
Last-of-layer in the open hedge relationship | 500,000 | 500,000
Basis adjustment associated with the hedge | 2,600 | 6,600
Interest income from swap transaction | $ 1,600 | $ 561

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