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ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY - Credit Quality Indicators (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Recorded Investment |  |
Total ending loans balance | $ 4,649,156 | $ 4,065,828
Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 93,912 | 112,166
Other Consumer Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance |  | 98,366
Commercial and Industrial Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 1,784,926 | 1,426,826
Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 626,099 | 709,983
Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 1,158,827 | 716,843
Commercial Real Estate and Multi-family Residential Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 1,892,572 | 1,670,840
Commercial Real Estate and Multi-family Residential Loans | Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 361,664 | 286,534
Commercial Real Estate and Multi-family Residential Loans | Owner Occupied Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 647,574 | 573,359
Commercial Real Estate and Multi-family Residential Loans | Nonowner Occupied Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 579,050 | 570,687
Commercial Real Estate and Multi-family Residential Loans | Multifamily Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 304,284 | 240,260
Agri-business and Agricultural Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 429,662 | 379,631
Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 195,363 | 174,389
Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 234,299 | 205,242
Consumer 1-4 Family Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 344,699 | 377,999
Consumer 1-4 Family Mortgage Loans [Member] | Home equity mortgage open-ended revolving lines |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 11,962 | 12,922
Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 167,501 | 176,873
Consumer 1-4 Family Mortgage Loans [Member] | Open End And Junior Lien Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 165,236 | 188,204
Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 11,962 | 12,922
Consumer 1-4 Family Mortgage Loans [Member] | Other Consumer Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 103,385 |
Pass |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 3,997,245 | 3,490,863
Pass | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 93,912 | 112,166
Pass | Other Consumer Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance |  | 27,250
Pass | Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 535,071 | 631,728
Pass | Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 1,111,989 | 673,370
Pass | Commercial Real Estate and Multi-family Residential Loans | Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 361,664 | 286,534
Pass | Commercial Real Estate and Multi-family Residential Loans | Owner Occupied Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 608,845 | 535,496
Pass | Commercial Real Estate and Multi-family Residential Loans | Nonowner Occupied Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 547,790 | 569,315
Pass | Commercial Real Estate and Multi-family Residential Loans | Multifamily Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 282,031 | 240,260
Pass | Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 183,983 | 165,005
Pass | Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 185,875 | 191,489
Pass | Consumer 1-4 Family Mortgage Loans [Member] | Home equity mortgage open-ended revolving lines |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 |
Pass | Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 40,682 | 47,405
Pass | Consumer 1-4 Family Mortgage Loans [Member] | Open End And Junior Lien Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 8,424 | 10,845
Pass | Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance |  | 0
Pass | Consumer 1-4 Family Mortgage Loans [Member] | Other Consumer Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 36,979 |
Special Mention |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 251,891 | 96,608
Special Mention | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Special Mention | Other Consumer Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance |  | 0
Special Mention | Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 81,095 | 40,551
Special Mention | Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 26,523 | 18,782
Special Mention | Commercial Real Estate and Multi-family Residential Loans | Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Special Mention | Commercial Real Estate and Multi-family Residential Loans | Owner Occupied Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 31,355 | 14,804
Special Mention | Commercial Real Estate and Multi-family Residential Loans | Nonowner Occupied Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 31,260 | 781
Special Mention | Commercial Real Estate and Multi-family Residential Loans | Multifamily Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 22,253 | 0
Special Mention | Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 10,728 | 7,952
Special Mention | Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 48,424 | 13,738
Special Mention | Consumer 1-4 Family Mortgage Loans [Member] | Home equity mortgage open-ended revolving lines |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 |
Special Mention | Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Special Mention | Consumer 1-4 Family Mortgage Loans [Member] | Open End And Junior Lien Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Special Mention | Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance |  | 0
Special Mention | Consumer 1-4 Family Mortgage Loans [Member] | Other Consumer Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 253 |
Substandard |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 34,264 | 84,562
Substandard | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Substandard | Other Consumer Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance |  | 17
Substandard | Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 9,718 | 37,278
Substandard | Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 14,820 | 19,381
Substandard | Commercial Real Estate and Multi-family Residential Loans | Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Substandard | Commercial Real Estate and Multi-family Residential Loans | Owner Occupied Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 7,374 | 23,059
Substandard | Commercial Real Estate and Multi-family Residential Loans | Nonowner Occupied Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 591
Substandard | Commercial Real Estate and Multi-family Residential Loans | Multifamily Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Substandard | Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 652 | 1,432
Substandard | Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 15
Substandard | Consumer 1-4 Family Mortgage Loans [Member] | Home equity mortgage open-ended revolving lines |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 |
Substandard | Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 1,695 | 1,976
Substandard | Consumer 1-4 Family Mortgage Loans [Member] | Open End And Junior Lien Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 5 | 762
Substandard | Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance |  | 51
Substandard | Consumer 1-4 Family Mortgage Loans [Member] | Other Consumer Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 |
Doubtful |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Other Consumer Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance |  | 0
Doubtful | Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Commercial Real Estate and Multi-family Residential Loans | Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Commercial Real Estate and Multi-family Residential Loans | Owner Occupied Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Commercial Real Estate and Multi-family Residential Loans | Nonowner Occupied Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Commercial Real Estate and Multi-family Residential Loans | Multifamily Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Consumer 1-4 Family Mortgage Loans [Member] | Home equity mortgage open-ended revolving lines |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 |
Doubtful | Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Consumer 1-4 Family Mortgage Loans [Member] | Open End And Junior Lien Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance |  | 0
Doubtful | Consumer 1-4 Family Mortgage Loans [Member] | Other Consumer Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 |
Not Rated |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 365,756 | 393,795
Not Rated | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Not Rated | Other Consumer Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance |  | 71,099
Not Rated | Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 215 | 426
Not Rated | Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 5,495 | 5,310
Not Rated | Commercial Real Estate and Multi-family Residential Loans | Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Not Rated | Commercial Real Estate and Multi-family Residential Loans | Owner Occupied Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Not Rated | Commercial Real Estate and Multi-family Residential Loans | Nonowner Occupied Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Not Rated | Commercial Real Estate and Multi-family Residential Loans | Multifamily Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Not Rated | Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Not Rated | Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Not Rated | Consumer 1-4 Family Mortgage Loans [Member] | Home equity mortgage open-ended revolving lines |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 11,962 |
Not Rated | Consumer 1-4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 125,124 | 127,492
Not Rated | Consumer 1-4 Family Mortgage Loans [Member] | Open End And Junior Lien Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 156,807 | 176,597
Not Rated | Consumer 1-4 Family Mortgage Loans [Member] | Residential Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance |  | $ 12,871
Not Rated | Consumer 1-4 Family Mortgage Loans [Member] | Other Consumer Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | $ 66,153 |

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