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STOCK-BASED COMPENSATION - Performance Units - Additional Information (Details) - Omnibus Plan [Member] - Performance Shares [member] - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Granted performance units | 165,487 | 216,876 | 166,669
Performance units program description | Performance units granted during the years ended December 31, 2024 and 2023 vest on the third anniversary of the effective date of the award based on actual achievement of two performance metrics weighted equally: relative total shareholder return (“Relative TSR”), compared to companies that comprise the KBW Nasdaq Regional Banking Index, and the achievement of a tangible book value per share (“TBVPS”) goal, which is measured based upon the growth in the tangible book value during the performance cycle, adjusted for certain allowable non-recurring transactions. The participant may earn 50% of their target opportunity for threshold level performance and up to 150% of their target opportunity for maximum level performance, based on the individual achievement of each performance goal during a three-year performance cycle. Amounts between threshold, target and maximum performance will vest in a proportional amount. Performance units granted prior to March 16, 2023 vest subject only to achievement of a TBVPS goal and the participant may earn only up to 100% of their target opportunity. |  |
Stock-based compensation expense | $ 2.5 | $ 2.1 | $ 1.7
Unrecognized compensation cost related to unvested performance units | $ 3.6 |  |
Period for cost recognition not yet recognized | 1 year 9 months 18 days |  |
Minimum [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Target opportunity, percentage | 50.00% |  |
Maximum [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Target opportunity, percentage | 150.00% |  |
Executives [Member] |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |
Performance units program description | These awards, which are granted to executives, do not contain non-forfeitable rights to dividend equivalent amounts and can only be settled in shares of the Corporation’s common stock. |  |

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