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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Impaired Loans, Excluding Purchased Impaired (Details) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2024 USD ($) customer | Sep. 30, 2023 USD ($) | Dec. 31, 2023 USD ($)
Impaired loans |  |  |  |  |
Average carrying balance of individually assessed loans | $ 30,800 | $ 4,500 | $ 31,100 | $ 6,600 |
Interest income on individually assessed loans | 0 | $ 0 | 0 | $ 0 |
Commercial Portfolio Segment |  |  |  |  |
Impaired loans |  |  |  |  |
Loans with allowance allocation, Carrying Balance | 11,776 |  | 11,776 |  | $ 3,484
Loans with allowance allocation, Contractual Balance | 11,876 |  | 11,876 |  | 3,484
Loans with allowance allocation, Specifically Allocated Allowance | 1,647 |  | 1,647 |  | 470
Loans without allowance allocation, Carrying Balance | 17,369 |  | 17,369 |  | 15,750
Loans without allowance allocation, Contractual Balance | 18,409 |  | 18,409 |  | 15,765
Loans without allowance allocation, Specifically Allocated Allowance | 0 |  | 0 |  | 0
CRE - owner occupied | Commercial Portfolio Segment |  |  |  |  |
Impaired loans |  |  |  |  |
Loans with allowance allocation, Carrying Balance | 1,606 |  | 1,606 |  | 0
Loans with allowance allocation, Contractual Balance | 1,606 |  | 1,606 |  | 0
Loans with allowance allocation, Specifically Allocated Allowance | 682 |  | 682 |  | 0
Loans without allowance allocation, Carrying Balance | 8,268 |  | 8,268 |  | 1,551
Loans without allowance allocation, Contractual Balance | 8,306 |  | 8,306 |  | 1,551
Loans without allowance allocation, Specifically Allocated Allowance | 0 |  | $ 0 |  | 0
CRE - non-owner occupied |  |  |  |  |
Impaired loans |  |  |  |  |
Number of customers associated with collateral office properties | customer |  |  | 2 |  |
CRE - non-owner occupied | Commercial Portfolio Segment |  |  |  |  |
Impaired loans |  |  |  |  |
Loans with allowance allocation, Carrying Balance | 10,170 |  | $ 10,170 |  | 3,484
Loans with allowance allocation, Contractual Balance | 10,270 |  | 10,270 |  | 3,484
Loans with allowance allocation, Specifically Allocated Allowance | 965 |  | 965 |  | 470
Loans without allowance allocation, Carrying Balance | 1,620 |  | 1,620 |  | 13,999
Loans without allowance allocation, Contractual Balance | 2,622 |  | 2,622 |  | 14,014
Loans without allowance allocation, Specifically Allocated Allowance | 0 |  | 0 |  | 0
Commercial & industrial and other business loans | Commercial Portfolio Segment |  |  |  |  |
Impaired loans |  |  |  |  |
Loans without allowance allocation, Carrying Balance | 7,481 |  | 7,481 |  | 200
Loans without allowance allocation, Contractual Balance | 7,481 |  | 7,481 |  | 200
Loans without allowance allocation, Specifically Allocated Allowance | 0 |  | 0 |  | $ 0
Minimum |  |  |  |  |
Impaired loans |  |  |  |  |
Threshold balance of loans individually evaluated for impairment | $ 500 |  | $ 500 |  |

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