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ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY - Credit Quality Indicators (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Recorded Investment |  |
Total ending loans balance | $ 4,490,532 | $ 4,065,828
Commercial and Industrial Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
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 |  |
Total ending loans balance | 568,689 | 709,983
Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 1,225,110 | 716,843
Commercial Real Estate and Multi-family Residential Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
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 |  |
Total ending loans balance | 359,082 | 286,534
Commercial Real Estate and Multi-family Residential Loans [Member] | Owner Occupied Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 575,858 | 573,359
Commercial Real Estate and Multi-family Residential Loans [Member] | Nonowner Occupied Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 553,894 | 570,687
Commercial Real Estate and Multi-family Residential Loans [Member] | Multifamily Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 290,107 | 240,260
Agri-business and Agricultural Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 352,071 | 379,631
Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 153,728 | 174,389
Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 198,343 | 205,242
Agri-business and Agricultural Loans [Member] | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 110,712 | 112,166
Consumer 14 family mortgage loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 356,578 | 377,999
Consumer 14 family mortgage loans | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 98,431 | 98,366
Consumer 14 family mortgage loans | Closed End First Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 169,531 | 176,873
Consumer 14 family mortgage loans | Open End And Junior Lien Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 175,924 | 188,204
Consumer 14 family mortgage loans | Residential Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 11,123 | 12,922
Pass |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 3,898,239 | 3,490,863
Pass | Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 517,324 | 631,728
Pass | Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 1,176,307 | 673,370
Pass | Commercial Real Estate and Multi-family Residential Loans [Member] | Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 359,082 | 286,534
Pass | Commercial Real Estate and Multi-family Residential Loans [Member] | Owner Occupied Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 537,145 | 535,496
Pass | Commercial Real Estate and Multi-family Residential Loans [Member] | Nonowner Occupied Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 546,936 | 569,315
Pass | Commercial Real Estate and Multi-family Residential Loans [Member] | Multifamily Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 290,107 | 240,260
Pass | Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 140,131 | 165,005
Pass | Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 146,520 | 191,489
Pass | Agri-business and Agricultural Loans [Member] | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 110,712 | 112,166
Pass | Consumer 14 family mortgage loans | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 28,047 | 27,250
Pass | Consumer 14 family mortgage loans | Closed End First Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 37,353 | 47,405
Pass | Consumer 14 family mortgage loans | Open End And Junior Lien Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 8,575 | 10,845
Pass | Consumer 14 family mortgage loans | Residential Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 1 | 0
Special Mention |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 150,839 | 96,608
Special Mention | Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 31,787 | 40,551
Special Mention | Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 22,205 | 18,782
Special Mention | Commercial Real Estate and Multi-family Residential Loans [Member] | 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 [Member] | Owner Occupied Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 26,493 | 14,804
Special Mention | Commercial Real Estate and Multi-family Residential Loans [Member] | Nonowner Occupied Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 6,395 | 781
Special Mention | Commercial Real Estate and Multi-family Residential Loans [Member] | Multifamily Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Special Mention | Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 12,136 | 7,952
Special Mention | Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 51,823 | 13,738
Special Mention | Agri-business and Agricultural Loans [Member] | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Special Mention | Consumer 14 family mortgage loans | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Special Mention | Consumer 14 family mortgage loans | Closed End First Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Special Mention | Consumer 14 family mortgage loans | Open End And Junior Lien Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Special Mention | Consumer 14 family mortgage loans | Residential Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Substandard |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 57,371 | 84,562
Substandard | Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 19,254 | 37,278
Substandard | Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 21,258 | 19,381
Substandard | Commercial Real Estate and Multi-family Residential Loans [Member] | 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 [Member] | Owner Occupied Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 12,220 | 23,059
Substandard | Commercial Real Estate and Multi-family Residential Loans [Member] | Nonowner Occupied Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 563 | 591
Substandard | Commercial Real Estate and Multi-family Residential Loans [Member] | 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 | 1,461 | 1,432
Substandard | Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 15
Substandard | Agri-business and Agricultural Loans [Member] | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Substandard | Consumer 14 family mortgage loans | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 17
Substandard | Consumer 14 family mortgage loans | Closed End First Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 1,852 | 1,976
Substandard | Consumer 14 family mortgage loans | Open End And Junior Lien Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 711 | 762
Substandard | Consumer 14 family mortgage loans | Residential Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 52 | 51
Doubtful |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 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 [Member] | 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 [Member] | Owner Occupied Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Commercial Real Estate and Multi-family Residential Loans [Member] | Nonowner Occupied Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Commercial Real Estate and Multi-family Residential Loans [Member] | 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 | Agri-business and Agricultural Loans [Member] | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Consumer 14 family mortgage loans | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Consumer 14 family mortgage loans | Closed End First Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Consumer 14 family mortgage loans | Open End And Junior Lien Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Doubtful | Consumer 14 family mortgage loans | Residential Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Not Rated |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 384,083 | 393,795
Not Rated | Commercial and Industrial Loans [Member] | Working Capital Lines of Credit Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 324 | 426
Not Rated | Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 5,340 | 5,310
Not Rated | Commercial Real Estate and Multi-family Residential Loans [Member] | 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 [Member] | Owner Occupied Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Not Rated | Commercial Real Estate and Multi-family Residential Loans [Member] | Nonowner Occupied Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Not Rated | Commercial Real Estate and Multi-family Residential Loans [Member] | 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 | Agri-business and Agricultural Loans [Member] | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 0 | 0
Not Rated | Consumer 14 family mortgage loans | Other Commercial Loans |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 70,384 | 71,099
Not Rated | Consumer 14 family mortgage loans | Closed End First Mortgage Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 130,326 | 127,492
Not Rated | Consumer 14 family mortgage loans | Open End And Junior Lien Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | 166,638 | 176,597
Not Rated | Consumer 14 family mortgage loans | Residential Construction and Land Development Loans [Member] |  |
Financing Receivable, Recorded Investment |  |
Total ending loans balance | $ 11,071 | $ 12,871

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