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ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY - Aging Of The Recorded Investment In Past Due Loans (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | $ 4,475,048 | $ 4,045,634
Nonaccrual | 14,779 | 18,675
Total Past Due and Nonaccrual | 15,484 | 20,194
Total ending loans balance | 4,490,532 | 4,065,828
Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 686 | 1,474
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 19 | 45
Commercial and Industrial Loans [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Total ending loans balance | 1,793,799 | 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 | 566,602 | 703,737
Nonaccrual | 2,079 | 6,236
Total Past Due and Nonaccrual | 2,087 | 6,246
Total ending loans balance | 568,689 | 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 | 8 | 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 | 1,219,488 | 710,557
Nonaccrual | 5,611 | 6,282
Total Past Due and Nonaccrual | 5,622 | 6,286
Total ending loans balance | 1,225,110 | 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 | 11 | 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 | 1,778,941 | 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 | 359,082 | 286,534
Nonaccrual | 0 | 0
Total Past Due and Nonaccrual | 0 | 0
Total ending loans balance | 359,082 | 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 | 570,680 | 569,303
Nonaccrual | 5,178 | 4,056
Total Past Due and Nonaccrual | 5,178 | 4,056
Total ending loans balance | 575,858 | 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 | 553,894 | 570,687
Nonaccrual | 0 | 0
Total Past Due and Nonaccrual | 0 | 0
Total ending loans balance | 553,894 | 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 | 0 | 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 | 290,107 | 240,260
Nonaccrual | 0 | 0
Total Past Due and Nonaccrual | 0 | 0
Total ending loans balance | 290,107 | 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 | 352,071 | 379,631
Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 153,298 | 173,959
Nonaccrual | 430 | 430
Total Past Due and Nonaccrual | 430 | 430
Total ending loans balance | 153,728 | 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 | 198,343 | 205,228
Nonaccrual | 0 | 14
Total Past Due and Nonaccrual | 0 | 14
Total ending loans balance | 198,343 | 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 | 110,712 | 112,166
Nonaccrual | 0 | 0
Total Past Due and Nonaccrual | 0 | 0
Total ending loans balance | 110,712 | 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
Agri-business and Agricultural Loans [Member] | Other consumer loans |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 98,221 |
Nonaccrual | 0 |
Total Past Due and Nonaccrual | 210 |
Total ending loans balance | 98,431 |
Agri-business and Agricultural Loans [Member] | Other consumer loans | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 210 |
Agri-business and Agricultural 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 |
Consumer 14 family mortgage loans |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Total ending loans balance | 356,578 | 377,999
Consumer 14 family mortgage loans | Other Commercial Loans |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Total ending loans balance | 98,431 | 98,366
Consumer 14 family mortgage loans | Closed End First Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 168,367 | 174,902
Nonaccrual | 718 | 827
Total Past Due and Nonaccrual | 1,164 | 1,971
Total ending loans balance | 169,531 | 176,873
Consumer 14 family mortgage loans | Closed End First Mortgage Loans [Member] | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 427 | 1,099
Consumer 14 family mortgage loans | 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 | 45
Consumer 14 family mortgage loans | Open End and Junior Lien Loans |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 175,183 | 187,255
Nonaccrual | 711 | 761
Total Past Due and Nonaccrual | 741 | 949
Total ending loans balance | 175,924 | 188,204
Consumer 14 family mortgage loans | Open End and Junior Lien Loans | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due | 30 | 188
Consumer 14 family mortgage loans | 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 14 family mortgage loans | Residential Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due | 11,071 | 12,870
Nonaccrual | 52 | 52
Total Past Due and Nonaccrual | 52 | 52
Total ending loans balance | 11,123 | 12,922
Consumer 14 family mortgage loans | 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 14 family mortgage loans | 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 14 family mortgage loans | Other consumer loans |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Loans Not Past Due |  | 98,176
Nonaccrual |  | 17
Total Past Due and Nonaccrual |  | 190
Total ending loans balance |  | 98,366
Consumer 14 family mortgage loans | Other consumer loans | Financial Asset, 30 to 89 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due |  | 173
Consumer 14 family mortgage loans | Other consumer loans | Financial Asset, Equal to or Greater than 90 Days Past Due [Member] |  |
Financing Receivable, Recorded Investment, Aging [Abstract] |  |
Past Due |  | $ 0

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