Annual report pursuant to Section 13 and 15(d)

LOANS AND ALLOWANCE FOR LOAN LOSSES (Loans Stated at Face Amount, Net of Unearned Income) (Details)

v3.10.0.1
LOANS AND ALLOWANCE FOR LOAN LOSSES (Loans Stated at Face Amount, Net of Unearned Income) (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Loans and Leases Receivable Disclosure [Abstract]    
Loans receivable, deferred fees and costs $ 5,100 $ 1,300
Loans and Leases Receivable Disclosure [Line Items]    
Loans held for investment, net of deferred fees 9,716,207 7,141,552
Construction and Land Development    
Loans and Leases Receivable Disclosure [Line Items]    
Loans held for investment, net of deferred fees 1,194,821 948,791
Commercial Real Estate - Owner Occupied    
Loans and Leases Receivable Disclosure [Line Items]    
Loans held for investment, net of deferred fees 1,337,345 943,933
Commercial Real Estate - Non-Owner Occupied    
Loans and Leases Receivable Disclosure [Line Items]    
Loans held for investment, net of deferred fees 2,467,410 1,713,659
Multifamily Real Estate    
Loans and Leases Receivable Disclosure [Line Items]    
Loans held for investment, net of deferred fees 548,231 357,079
Commercial and Industrial    
Loans and Leases Receivable Disclosure [Line Items]    
Loans held for investment, net of deferred fees 1,317,135 612,023
Residential 1-4 Family - Commercial    
Loans and Leases Receivable Disclosure [Line Items]    
Loans held for investment, net of deferred fees 713,750 612,395
Residential 1-4 Family - Mortgage    
Loans and Leases Receivable Disclosure [Line Items]    
Loans held for investment, net of deferred fees 600,578 485,690
Auto    
Loans and Leases Receivable Disclosure [Line Items]    
Loans held for investment, net of deferred fees 301,943 282,474
HELOC    
Loans and Leases Receivable Disclosure [Line Items]    
Loans held for investment, net of deferred fees 613,383 537,521
Consumer    
Loans and Leases Receivable Disclosure [Line Items]    
Loans held for investment, net of deferred fees 379,694 408,667
Other Commercial    
Loans and Leases Receivable Disclosure [Line Items]    
Loans held for investment, net of deferred fees $ 241,917 $ 239,320