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REVENUE FROM CONTRACTS WITH CUSTOMERS - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Total non-interest income	$ 8,586	$ 9,184
Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	7,380	7,232
Not within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	1,206	1,952
Products and services transferred at a point in time | Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	3,926	3,950
Products and services transferred over time | Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	3,454	3,282
Non-interest Income | Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	7,380	7,232
Trust management fees | Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	3,243	3,091
Financial services fees | Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	427	464
Interchange fees | Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	1,970	2,010
Customer deposit fees | Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	1,502	1,429
Other customer service fees | Within the scope of ASC 606
Disaggregation of Revenue [Line Items]
Total non-interest income	$ 238	$ 238

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The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.

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