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BUSINESS COMBINATIONS - Schedule of Expenses Related to the Acquisition (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Business Combination [Line Items]        
Occupancy of bank premises $ 3,509 $ 2,471 $ 6,633 $ 5,096
Furniture and equipment 931 575 1,539 1,020
Data processing 3,763 2,687 15,557 5,404
Marketing and customer relations 1,386 1,020 2,530 2,164
Loan collection and servicing 555 360 1,251 743
CNB Bank Shares, Inc.        
Business Combination [Line Items]        
Salaries (44) 0 3,959 0
Occupancy of bank premises 13 0 118 0
Furniture and equipment 9 0 72 0
Data processing 91 0 8,759 0
Marketing and customer relations 5 0 74 0
Loan collection and servicing 28 0 348 0
Professional fees and other noninterest expense 155 0 2,593 0
Total acquisition-related expenses $ 257 $ 0 $ 15,923 $ 0