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REVENUE FROM CONTRACTS WITH CUSTOMERS - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Disaggregation of Revenue [Line Items] |  |  |  |
Total non-interest income | $ 9,653 | $ 8,607 | $ 27,496 | $ 26,377
Within the scope of ASC 606 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total non-interest income | 7,917 | 7,448 | 23,227 | 22,259
Not within the scope of ASC 606 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total non-interest income | 1,736 | 1,159 | 4,269 | 4,118
Products and services transferred at a point in time | Within the scope of ASC 606 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total non-interest income | 4,199 | 4,045 | 12,095 | 11,842
Products and services transferred over time | Within the scope of ASC 606 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total non-interest income | 3,718 | 3,403 | 11,132 | 10,417
Non-interest Income | Within the scope of ASC 606 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total non-interest income | 7,917 | 7,448 | 23,227 | 22,259
Trust management fees | Within the scope of ASC 606 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total non-interest income | 3,476 | 3,135 | 10,464 | 9,724
Financial services fees | Within the scope of ASC 606 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total non-interest income | 653 | 387 | 1,528 | 1,158
Interchange fees | Within the scope of ASC 606 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total non-interest income | 1,977 | 1,971 | 5,842 | 5,909
Customer deposit fees | Within the scope of ASC 606 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total non-interest income | 1,521 | 1,669 | 4,610 | 4,688
Other customer service fees | Within the scope of ASC 606 |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total non-interest income | $ 290 | $ 286 | $ 783 | $ 780

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