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LOANS - Summary of Impaired Loans, Excluding Purchased Impaired (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Impaired loans |  |  |  |  |
Loans with allowance allocation | $ 25,534 |  | $ 25,534 |  | $ 27,437
Loans without allowance allocation | 6,529 |  | 6,529 |  | 8,138
Carrying balance | 32,063 |  | 32,063 |  | 35,575
Contractual balance | 34,228 |  | 34,228 |  | 38,362
Specifically allocated allowance | 2,800 |  | 2,800 |  | $ 3,874
Average carrying balance of individually evaluated impaired loans | $ 32,900 | $ 1,400 | 34,600 | $ 1,800 |
Interest income on individually evaluated impaired loans |  |  | $ 0 | $ 0 |

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