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LOANS, ALLOWANCE FOR CREDIT LOSSES, AND CREDIT QUALITY - Provisions for credit losses (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Provision for credit losses on: |  |  |
Loans | $ 200 | $ 4,092 | $ 4,292
Unfunded commitments |  | 90 | 390
Total provision for credit losses | 200 | $ 4,182 | 4,682
Other liabilities |  |  |
Loans |  |  |
Reserve for unfunded commitments | $ 3,800 |  | $ 3,800

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