REVENUE FROM CONTRACTS WITH CUSTOMERS (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Noninterest income - out-of-scope of Topic 606	$ 7,201	$ 8,159	$ 13,214	$ 11,485
Total noninterest income	23,768	23,534	45,890	41,297
Trust management/administration fees
Disaggregation of Revenue [Line Items]
Revenue	7,672	6,435	14,842	12,879
Investment advisory and brokerage fees
Disaggregation of Revenue [Line Items]
Revenue	619	522	1,272	1,004
Other
Disaggregation of Revenue [Line Items]
Revenue	477	422	902	846
Nonsufficient fund fees
Disaggregation of Revenue [Line Items]
Revenue	2,162	2,018	4,250	3,971
Other
Disaggregation of Revenue [Line Items]
Revenue	1,287	1,333	2,554	2,685
Interchange revenues
Disaggregation of Revenue [Line Items]
Revenue	3,553	3,463	7,081	6,614
Merchant services revenue
Disaggregation of Revenue [Line Items]
Revenue	345	359	679	697
Other
Disaggregation of Revenue [Line Items]
Revenue	$ 452	$ 823	$ 1,096	$ 1,116

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