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LOANS AND ALLOWANCE FOR LOAN LOSSES (Loans Stated at Face Amount, Net of Unearned Income) (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans held for investment, net of deferred fees and costs | $ 12,768,841 | $ 12,610,936
Construction and Land Development |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans held for investment, net of deferred fees and costs | 1,318,252 | 1,250,924
Commercial Real Estate - Owner Occupied |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans held for investment, net of deferred fees and costs | 2,051,904 | 2,041,243
Commercial Real Estate - Non-Owner Occupied |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans held for investment, net of deferred fees and costs | 3,328,012 | 3,286,098
Multifamily Real Estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans held for investment, net of deferred fees and costs | 679,390 | 633,743
Commercial and Industrial |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans held for investment, net of deferred fees and costs | 2,177,932 | 2,114,033
Residential 1-4 Family - Commercial |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans held for investment, net of deferred fees and costs | 721,800 | 724,337
Residential 1-4 Family - Consumer |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans held for investment, net of deferred fees and costs | 854,550 | 890,503
Residential 1-4 Family - Revolving |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans held for investment, net of deferred fees and costs | 652,135 | 659,504
Auto |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans held for investment, net of deferred fees and costs | 358,039 | 350,419
Consumer |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans held for investment, net of deferred fees and costs | 352,572 | 372,853
Other Commercial |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans held for investment, net of deferred fees and costs | $ 274,255 | $ 287,279

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- Definition Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5074-111524 + Details
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