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LOANS AND ALLOWANCE FOR LOAN LOSSES (PCI Loan Portfolios by Segment and Delinquency Status) (Details) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | $ 12,048,627 | $ 9,537,156
Total Loans | 12,220,514 | 9,716,207
Construction and Land Development |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 1,246,412 | 1,177,204
Total Loans | 1,267,712 | 1,194,821
Commercial Real Estate - Owner Occupied |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 1,925,839 | 1,294,975
Total Loans | 1,966,776 | 1,337,345
Commercial Real Estate - Non-Owner Occupied |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 3,085,589 | 2,447,907
Total Loans | 3,104,823 | 2,467,410
Multifamily Real Estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 600,805 | 547,997
Total Loans | 602,115 | 548,231
Commercial & Industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 2,022,993 | 1,309,581
Total Loans | 2,032,799 | 1,317,135
Residential 1-4 Family - Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 781,757 | 687,957
Total Loans | 801,703 | 713,750
Residential 1-4 Family - Mortgage |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 813,950 | 556,907
Total Loans | 850,063 | 600,578
Auto |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 308,861 | 297,442
Total Loans | 311,858 | 301,943
HELOC |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 647,348 | 600,055
Total Loans | 660,621 | 613,383
Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 377,533 | 376,057
Total Loans | 383,653 | 379,694
Other Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 237,540 | 241,074
Total Loans | 238,391 | 241,917
Purchased Impaired |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 85,583 | 71,213
Total Loans | 101,301 | 90,221
Purchased Impaired | 30 To 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 3,553 | 4,264
Purchased Impaired | Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 12,165 | 14,744
Purchased Impaired | Construction and Land Development |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 10,720 | 7,122
Total Loans | 12,181 | 8,654
Purchased Impaired | Construction and Land Development | 30 To 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 165 | 108
Purchased Impaired | Construction and Land Development | Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 1,296 | 1,424
Purchased Impaired | Commercial Real Estate - Owner Occupied |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 27,909 | 20,705
Total Loans | 32,628 | 25,644
Purchased Impaired | Commercial Real Estate - Owner Occupied | 30 To 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 745 | 658
Purchased Impaired | Commercial Real Estate - Owner Occupied | Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 3,974 | 4,281
Purchased Impaired | Commercial Real Estate - Non-Owner Occupied |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 14,640 | 15,464
Total Loans | 15,755 | 17,335
Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | 30 To 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 116 | 61
Purchased Impaired | Commercial Real Estate - Non-Owner Occupied | Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 999 | 1,810
Purchased Impaired | Multifamily Real Estate |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 92 | 88
Total Loans | 92 | 88
Purchased Impaired | Multifamily Real Estate | 30 To 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Purchased Impaired | Multifamily Real Estate | Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Purchased Impaired | Commercial & Industrial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 2,604 | 1,017
Total Loans | 3,930 | 2,156
Purchased Impaired | Commercial & Industrial | 30 To 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 245 | 47
Purchased Impaired | Commercial & Industrial | Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 1,081 | 1,092
Purchased Impaired | Residential 1-4 Family - Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 11,423 | 9,312
Total Loans | 12,675 | 13,707
Purchased Impaired | Residential 1-4 Family - Commercial | 30 To 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 582 | 931
Purchased Impaired | Residential 1-4 Family - Commercial | Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 670 | 3,464
Purchased Impaired | Residential 1-4 Family - Mortgage |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 12,619 | 12,455
Total Loans | 17,821 | 16,766
Purchased Impaired | Residential 1-4 Family - Mortgage | 30 To 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 1,423 | 1,899
Purchased Impaired | Residential 1-4 Family - Mortgage | Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 3,779 | 2,412
Purchased Impaired | Auto |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 7 | 7
Total Loans | 7 | 7
Purchased Impaired | Auto | 30 To 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Purchased Impaired | Auto | Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 0
Purchased Impaired | HELOC |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 4,231 | 4,365
Total Loans | 4,869 | 5,115
Purchased Impaired | HELOC | 30 To 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 277 | 498
Purchased Impaired | HELOC | Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 361 | 252
Purchased Impaired | Consumer |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 684 | 18
Total Loans | 689 | 32
Purchased Impaired | Consumer | 30 To 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 5
Purchased Impaired | Consumer | Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 5 | 9
Purchased Impaired | Other Commercial |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Current | 654 | 660
Total Loans | 654 | 717
Purchased Impaired | Other Commercial | 30 To 89 Days Past Due |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | 0 | 57
Purchased Impaired | Other Commercial | Greater than 90 Days |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |
Past Due | $ 0 | $ 0

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