REVENUE FROM CONTRACTS WITH CUSTOMERS (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Line Items]
Noninterest income - out-of-scope of Topic 606	$ 8,159	$ 17,629	$ 11,485	$ 41,421
Total noninterest income	23,534	31,984	41,297	69,825
Trust management/administration fees
Disaggregation of Revenue [Line Items]
Revenue	6,435	5,853	12,879	12,120
Investment advisory and brokerage fees
Disaggregation of Revenue [Line Items]
Revenue	522	500	1,004	923
Other
Disaggregation of Revenue [Line Items]
Revenue	422	448	846	890
Nonsufficient fund fees
Disaggregation of Revenue [Line Items]
Revenue	2,018	1,836	3,971	3,658
Other
Disaggregation of Revenue [Line Items]
Revenue	1,333	1,285	2,685	2,579
Interchange revenues
Disaggregation of Revenue [Line Items]
Revenue	3,463	3,563	6,614	6,921
Merchant services revenue
Disaggregation of Revenue [Line Items]
Revenue	359	357	697	701
Other
Disaggregation of Revenue [Line Items]
Revenue	$ 823	$ 513	$ 1,116	$ 612

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