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ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY - Balance In The Allowance For Loan Losses And The Recorded Investment In Loans By Portfolio Management (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | ---
Ending allowance balance attributable to loans: |  |  |  |
Individually evaluated for impairment | $ 7,662 | $ 10,384 |  |
Collectively evaluated for impairment | 45,947 | 40,268 |  |
Total ending allowance balance | 53,609 | 50,652 | $ 49,562 | $ 48,453
Loans: |  |  |  |
Loans individually evaluated for impairment | 22,978 | 27,829 |  |
Loans collectively evaluated for impairment | 4,062,760 | 4,037,999 |  |
Total ending loans balance | 4,085,738 | 4,065,828 |  |
Commercial and Industrial Loans [Member] |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |
Individually evaluated for impairment | 6,676 | 9,324 |  |
Collectively evaluated for impairment | 18,063 | 16,465 |  |
Total ending allowance balance | 24,739 | 25,789 | 24,030 | 22,518
Loans: |  |  |  |
Loans individually evaluated for impairment | 15,726 | 19,580 |  |
Loans collectively evaluated for impairment | 1,412,920 | 1,407,246 |  |
Total ending loans balance | 1,428,646 | 1,426,826 |  |
Commercial Real Estate and Multi-family Residential Loans [Member] |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |
Individually evaluated for impairment | 502 | 538 |  |
Collectively evaluated for impairment | 18,156 | 15,258 |  |
Total ending allowance balance | 18,658 | 15,796 | 15,447 | 15,393
Loans: |  |  |  |
Loans individually evaluated for impairment | 4,127 | 4,998 |  |
Loans collectively evaluated for impairment | 1,754,085 | 1,665,842 |  |
Total ending loans balance | 1,758,212 | 1,670,840 |  |
Agri-business and Agricultural Loans [Member] |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |
Individually evaluated for impairment | 57 | 90 |  |
Collectively evaluated for impairment | 3,647 | 3,779 |  |
Total ending allowance balance | 3,704 | 3,869 | 4,146 | 4,305
Loans: |  |  |  |
Loans individually evaluated for impairment | 430 | 445 |  |
Loans collectively evaluated for impairment | 329,067 | 379,186 |  |
Total ending loans balance | 329,497 | 379,631 |  |
Other Commercial |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |
Individually evaluated for impairment | 0 | 0 |  |
Collectively evaluated for impairment | 521 | 447 |  |
Total ending allowance balance | 521 | 447 | 373 | 368
Loans: |  |  |  |
Loans individually evaluated for impairment | 0 | 0 |  |
Loans collectively evaluated for impairment | 104,163 | 112,166 |  |
Total ending loans balance | 104,163 | 112,166 |  |
Consumer 1-4 Family Mortgage Loans [Member] |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |
Individually evaluated for impairment | 427 | 426 |  |
Collectively evaluated for impairment | 2,048 | 1,660 |  |
Total ending allowance balance | 2,475 | 2,086 | 2,266 | 2,292
Loans: |  |  |  |
Loans individually evaluated for impairment | 2,695 | 2,789 |  |
Loans collectively evaluated for impairment | 365,666 | 375,210 |  |
Total ending loans balance | 368,361 | 377,999 |  |
Other Consumer |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |
Individually evaluated for impairment | 0 | 6 |  |
Collectively evaluated for impairment | 447 | 339 |  |
Total ending allowance balance | 447 | 345 | 291 | 283
Loans: |  |  |  |
Loans individually evaluated for impairment | 0 | 17 |  |
Loans collectively evaluated for impairment | 96,859 | 98,349 |  |
Total ending loans balance | 96,859 | 98,366 |  |
Unallocated |  |  |  |
Ending allowance balance attributable to loans: |  |  |  |
Individually evaluated for impairment | 0 | 0 |  |
Collectively evaluated for impairment | 3,065 | 2,320 |  |
Total ending allowance balance | 3,065 | 2,320 | $ 3,009 | $ 3,294
Loans: |  |  |  |
Loans individually evaluated for impairment | 0 | 0 |  |
Loans collectively evaluated for impairment | 0 | 0 |  |
Total ending loans balance | $ 0 | $ 0 |  |

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