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ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY - Aging Of The Recorded Investment In Past Due Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | $ 4,575,317 | $ 4,045,634
Nonaccrual | 13,478 | 18,675
Total Past Due and Nonaccrual | 14,607 | 20,194
Total ending loans balance | 4,589,924 | 4,065,828
Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 1,110 | 1,474
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 19 | 45
Closed End First Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due |  | 174,902
Nonaccrual |  | 827
Total Past Due and Nonaccrual |  | 1,971
Total ending loans balance |  | 176,873
Closed End First Mortgage Loans [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due |  | 1,099
Closed End First Mortgage Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due |  | 45
Commercial and Industrial Loans [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Total ending loans balance | 1,837,747 | 1,426,826
Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 591,549 | 703,737
Nonaccrual | 1,050 | 6,236
Total Past Due and Nonaccrual | 1,091 | 6,246
Total ending loans balance | 592,640 | 709,983
Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 41 | 10
Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 1,239,596 | 710,557
Nonaccrual | 5,508 | 6,282
Total Past Due and Nonaccrual | 5,511 | 6,286
Total ending loans balance | 1,245,107 | 716,843
Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 3 | 4
Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Commercial Real Estate and Multi-family Residential Loans [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Total ending loans balance | 1,857,820 | 1,670,840
Commercial Real Estate and Multi-family Residential Loans [Member] | Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 392,078 | 286,534
Nonaccrual | 0 | 0
Total Past Due and Nonaccrual | 0 | 0
Total ending loans balance | 392,078 | 286,534
Commercial Real Estate and Multi-family Residential Loans [Member] | Construction and Land Development Loans [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Commercial Real Estate and Multi-family Residential Loans [Member] | Construction and Land Development Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Commercial Real Estate and Multi-family Residential Loans [Member] | Owner Occupied Loans [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 614,264 | 569,303
Nonaccrual | 5,143 | 4,056
Total Past Due and Nonaccrual | 5,143 | 4,056
Total ending loans balance | 619,407 | 573,359
Commercial Real Estate and Multi-family Residential Loans [Member] | Owner Occupied Loans [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Commercial Real Estate and Multi-family Residential Loans [Member] | Owner Occupied Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Commercial Real Estate and Multi-family Residential Loans [Member] | Nonowner Occupied Loans |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 567,009 | 570,687
Nonaccrual | 0 | 0
Total Past Due and Nonaccrual | 18 | 0
Total ending loans balance | 567,027 | 570,687
Commercial Real Estate and Multi-family Residential Loans [Member] | Nonowner Occupied Loans | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 18 | 0
Commercial Real Estate and Multi-family Residential Loans [Member] | Nonowner Occupied Loans | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Commercial Real Estate and Multi-family Residential Loans [Member] | Multifamily Loans |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 279,308 | 240,260
Nonaccrual | 0 | 0
Total Past Due and Nonaccrual | 0 | 0
Total ending loans balance | 279,308 | 240,260
Commercial Real Estate and Multi-family Residential Loans [Member] | Multifamily Loans | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Commercial Real Estate and Multi-family Residential Loans [Member] | Multifamily Loans | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Agri-business and Agricultural Loans [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Total ending loans balance | 338,164 | 379,631
Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 150,020 | 173,959
Nonaccrual | 428 | 430
Total Past Due and Nonaccrual | 428 | 430
Total ending loans balance | 150,448 | 174,389
Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 187,716 | 205,228
Nonaccrual | 0 | 14
Total Past Due and Nonaccrual | 0 | 14
Total ending loans balance | 187,716 | 205,242
Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Agri-business and Agricultural Loans [Member] | Other Commercial Loans |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 97,428 | 112,166
Nonaccrual | 0 | 0
Total Past Due and Nonaccrual | 0 | 0
Total ending loans balance | 97,428 | 112,166
Agri-business and Agricultural Loans [Member] | Other Commercial Loans | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Agri-business and Agricultural Loans [Member] | Other Commercial Loans | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Consumer 1-4 Family Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Total ending loans balance | 353,724 | 377,999
Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 168,835 |
Nonaccrual | 640 |
Total Past Due and Nonaccrual | 1,472 |
Total ending loans balance | 170,307 | 176,873
Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 813 |
Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 19 |
Consumer 1-4 Family Mortgage Loans [Member] | Open End and Junior Lien Loans |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 171,669 | 187,255
Nonaccrual | 684 | 761
Total Past Due and Nonaccrual | 783 | 949
Total ending loans balance | 172,452 | 188,204
Consumer 1-4 Family Mortgage Loans [Member] | Open End and Junior Lien Loans | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 99 | 188
Consumer 1-4 Family Mortgage Loans [Member] | Open End and Junior Lien Loans | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 10,940 | 12,870
Nonaccrual | 25 | 52
Total Past Due and Nonaccrual | 25 | 52
Total ending loans balance | 10,965 | 12,922
Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction and Land Development Loans [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction and Land Development Loans [Member] | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 0 | 0
Consumer 1-4 Family Mortgage Loans [Member] | Other consumer loans |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 104,905 | 98,176
Nonaccrual | 0 | 17
Total Past Due and Nonaccrual | 136 | 190
Total ending loans balance | 105,041 | 98,366
Consumer 1-4 Family Mortgage Loans [Member] | Other consumer loans | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 136 | 173
Consumer 1-4 Family Mortgage Loans [Member] | Other consumer loans | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | $ 0 | $ 0

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