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LOANS AND ALLOWANCE FOR LOAN LOSSES - Loan Portfolio Summarized by Aging Categories of Performing Loans and Nonaccrual Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | $ 2,018,526 | $ 1,613,914
Past Due | 3,445 | 19,759
90+ (still accruing) Days Past Due | 521 | 2,232
Non-Accrual | 7,899 | 10,657
Financing Receivable, before Allowance for Credit Loss | 2,029,870 | 1,644,330
Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 2,004,560 | 1,594,695
Past Due | 2,585 | 14,773
90+ (still accruing) Days Past Due | 0 | 219
Non-Accrual | 7,899 | 10,657
Financing Receivable, before Allowance for Credit Loss | 2,015,044 | 1,620,125
Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 13,966 | 19,219
Past Due | 860 | 4,986
90+ (still accruing) Days Past Due | 521 | 2,013
Non-Accrual | 0 | 0
Financing Receivable, before Allowance for Credit Loss | 14,826 | 24,205
30 to 59 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 2,590 | 14,926
30 to 59 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 2,292 | 12,938
30 to 59 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 298 | 1,988
60 to 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 334 | 2,601
60 to 89 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 293 | 1,616
60 to 89 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 41 | 985
Commercial real estate | Owner occupied | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 157,456 | 158,723
Past Due | 1,270 | 144
90+ (still accruing) Days Past Due | 0 | 0
Non-Accrual | 3,313 | 5,842
Financing Receivable, before Allowance for Credit Loss | 162,039 | 164,709
Commercial real estate | Owner occupied | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 4,584 | 6,015
Past Due | 0 | 160
90+ (still accruing) Days Past Due | 0 | 31
Non-Accrual | 0 | 0
Financing Receivable, before Allowance for Credit Loss | 4,584 | 6,175
Commercial real estate | Owner occupied | 30 to 59 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 1,090 | 144
Commercial real estate | Owner occupied | 30 to 59 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Commercial real estate | Owner occupied | 60 to 89 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 180 | 0
Commercial real estate | Owner occupied | 60 to 89 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 129
Commercial real estate | Non-owner occupied | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 402,805 | 359,425
Past Due | 0 | 480
90+ (still accruing) Days Past Due | 0 | 0
Non-Accrual | 0 | 0
Financing Receivable, before Allowance for Credit Loss | 402,805 | 359,905
Commercial real estate | Non-owner occupied | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 333 | 564
Past Due | 0 | 581
90+ (still accruing) Days Past Due | 0 | 581
Non-Accrual | 0 | 0
Financing Receivable, before Allowance for Credit Loss | 333 | 1,145
Commercial real estate | Non-owner occupied | 30 to 59 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 480
Commercial real estate | Non-owner occupied | 30 to 59 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Commercial real estate | Non-owner occupied | 60 to 89 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Commercial real estate | Non-owner occupied | 60 to 89 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Commercial real estate | Multi-family | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 110,079 | 105,865
Past Due | 0 | 0
90+ (still accruing) Days Past Due | 0 | 0
Non-Accrual | 74 | 345
Financing Receivable, before Allowance for Credit Loss | 110,153 | 106,210
Commercial real estate | Multi-family | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current |  | 683
Past Due |  | 0
90+ (still accruing) Days Past Due |  | 0
Non-Accrual |  | 0
Financing Receivable, before Allowance for Credit Loss |  | 683
Commercial real estate | Multi-family | 30 to 59 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Commercial real estate | Multi-family | 30 to 59 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due |  | 0
Commercial real estate | Multi-family | 60 to 89 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Commercial real estate | Multi-family | 60 to 89 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due |  | 0
Commercial real estate | Non-owner occupied residential | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 110,292 | 116,370
Past Due | 0 | 976
90+ (still accruing) Days Past Due | 0 | 69
Non-Accrual | 275 | 235
Financing Receivable, before Allowance for Credit Loss | 110,567 | 117,581
Commercial real estate | Non-owner occupied residential | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 1,234 | 1,710
Past Due | 157 | 747
90+ (still accruing) Days Past Due | 157 | 531
Non-Accrual | 0 | 0
Financing Receivable, before Allowance for Credit Loss | 1,391 | 2,457
Commercial real estate | Non-owner occupied residential | 30 to 59 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 841
Commercial real estate | Non-owner occupied residential | 30 to 59 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 105
Commercial real estate | Non-owner occupied residential | 60 to 89 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 66
Commercial real estate | Non-owner occupied residential | 60 to 89 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 111
Acquisition and development | 1-4 family residential construction | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 9,627 | 15,587
Past Due | 0 | 278
90+ (still accruing) Days Past Due | 0 | 0
Non-Accrual | 0 | 0
Financing Receivable, before Allowance for Credit Loss | 9,627 | 15,865
Acquisition and development | 1-4 family residential construction | 30 to 59 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 278
Acquisition and development | 1-4 family residential construction | 60 to 89 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Acquisition and development | Commercial and land development | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 36,940 | 40,403
Past Due | 73 | 1,135
90+ (still accruing) Days Past Due | 0 | 0
Non-Accrual | 837 | 0
Financing Receivable, before Allowance for Credit Loss | 37,850 | 41,538
Acquisition and development | Commercial and land development | 30 to 59 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 73 | 1,135
Acquisition and development | Commercial and land development | 60 to 89 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Commercial and industrial | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 686,537 | 208,668
Past Due | 164 | 315
90+ (still accruing) Days Past Due | 0 | 0
Non-Accrual | 755 | 1,763
Financing Receivable, before Allowance for Credit Loss | 687,456 | 210,746
Commercial and industrial | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 2,857 | 3,792
Past Due | 17 | 16
90+ (still accruing) Days Past Due | 17 | 16
Non-Accrual | 0 | 0
Financing Receivable, before Allowance for Credit Loss | 2,874 | 3,808
Commercial and industrial | 30 to 59 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 107 | 315
Commercial and industrial | 30 to 59 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Commercial and industrial | 60 to 89 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 57 | 0
Commercial and industrial | 60 to 89 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Municipal | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 28,867 | 47,057
Past Due | 0 | 0
90+ (still accruing) Days Past Due | 0 | 0
Non-Accrual | 0 | 0
Financing Receivable, before Allowance for Credit Loss | 28,867 | 47,057
Municipal | 30 to 59 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Municipal | 60 to 89 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Residential mortgage | First lien | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 264,989 | 314,473
Past Due | 680 | 10,476
90+ (still accruing) Days Past Due | 0 | 150
Non-Accrual | 1,927 | 1,659
Financing Receivable, before Allowance for Credit Loss | 267,596 | 326,608
Residential mortgage | First lien | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 4,868 | 6,308
Past Due | 685 | 3,456
90+ (still accruing) Days Past Due | 347 | 854
Non-Accrual | 0 | 0
Financing Receivable, before Allowance for Credit Loss | 5,553 | 9,764
Residential mortgage | First lien | 30 to 59 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 646 | 9,092
Residential mortgage | First lien | 30 to 59 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 298 | 1,857
Residential mortgage | First lien | 60 to 89 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 34 | 1,234
Residential mortgage | First lien | 60 to 89 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 40 | 745
Residential mortgage | Home equity - term | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 11,067 | 13,993
Past Due | 12 | 4
90+ (still accruing) Days Past Due | 0 | 0
Non-Accrual | 11 | 13
Financing Receivable, before Allowance for Credit Loss | 11,090 | 14,010
Residential mortgage | Home equity - term | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 18 | 16
Past Due | 0 | 4
90+ (still accruing) Days Past Due | 0 | 0
Non-Accrual | 0 | 0
Financing Receivable, before Allowance for Credit Loss | 18 | 20
Residential mortgage | Home equity - term | 30 to 59 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 1 | 0
Residential mortgage | Home equity - term | 30 to 59 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 4
Residential mortgage | Home equity - term | 60 to 89 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 11 | 4
Residential mortgage | Home equity - term | 60 to 89 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Residential mortgage | Home equity - lines of credit | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 157,143 | 163,907
Past Due | 276 | 692
90+ (still accruing) Days Past Due | 0 | 0
Non-Accrual | 687 | 715
Financing Receivable, before Allowance for Credit Loss | 158,106 | 165,314
Residential mortgage | Home equity - lines of credit | 30 to 59 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 276 | 417
Residential mortgage | Home equity - lines of credit | 60 to 89 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 275
Installment and other loans | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 28,758 | 50,224
Past Due | 110 | 273
90+ (still accruing) Days Past Due | 0 | 0
Non-Accrual | 20 | 85
Financing Receivable, before Allowance for Credit Loss | 28,888 | 50,582
Installment and other loans | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 72 | 131
Past Due | 1 | 22
90+ (still accruing) Days Past Due | 0 | 0
Non-Accrual | 0 | 0
Financing Receivable, before Allowance for Credit Loss | 73 | 153
Installment and other loans | 30 to 59 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 99 | 236
Installment and other loans | 30 to 59 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 22
Installment and other loans | 60 to 89 Days Past Due | Financial Asset, Other than Financial Asset Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 11 | 37
Installment and other loans | 60 to 89 Days Past Due | Loans Acquired with Credit Deterioration |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | $ 1 | $ 0

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