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COMMITMENTS, CONTINGENT LIABILITIES AND RESTRICTIONS (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020 | Dec. 31, 2020
Commitments, Contingent Liabilities and Restrictions |  |  |  |  |
Contract amount of commitments and contingencies | $ 1,390,617 |  | $ 1,390,617 |  | $ 1,352,781
Expense recorded for litigation accrual | (100) | $ 2,950 | (100) | $ 2,950 | 3,000
Litigation settlement amount | 2,900 |  |  |  |
Adjustment to the Company's litigation accrual | 100 |  |  |  |
Minimum |  |  |  |  |
Commitments, Contingent Liabilities and Restrictions |  |  |  |  |
Range of reasonably possible losses for such matters in the aggregate, beyond the existing recorded liability | 0 |  | 0 |  |
Maximum |  |  |  |  |
Commitments, Contingent Liabilities and Restrictions |  |  |  |  |
Range of reasonably possible losses for such matters in the aggregate, beyond the existing recorded liability | 1,000 |  | 1,000 |  |
Commitments to extend credit |  |  |  |  |
Commitments, Contingent Liabilities and Restrictions |  |  |  |  |
Contract amount of commitments and contingencies | 1,357,244 |  | 1,357,244 |  | 1,313,568
Standby letters of credit |  |  |  |  |
Commitments, Contingent Liabilities and Restrictions |  |  |  |  |
Contract amount of commitments and contingencies | $ 33,373 |  | $ 33,373 |  | $ 39,213

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