LOANS (Total Loans Outstanding) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	$ 3,471,668	$ 3,080,950
Less: Allowance for loan losses	(43,718)	(43,610)	$ (46,262)	$ (48,797)
Net deferred loan fees	(741)	(21)
Loans, net	3,427,209	3,037,319
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	3,062,526	2,700,734
Other consumer loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	61,308	49,113
Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	409,142	380,216
Commercial and Industrial Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: Allowance for loan losses	(20,272)	(21,564)	(22,785)	(21,005)
Commercial and Industrial Loans [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	1,268,490	1,179,512
Commercial and Industrial Loans [Member] | Working Capital Lines Of Credit Loans [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	624,404	581,025
Commercial and Industrial Loans [Member] | Non-working Capital Loans [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	644,086	598,487
Commercial Real Estate and Multi-family Residential Loans [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	1,300,923	1,130,053
Commercial Real Estate and Multi-family Residential Loans [Member] | Construction and Land Development Loans [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	245,182	230,719
Commercial Real Estate and Multi-family Residential Loans [Member] | Owner Occupied Loans [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	469,705	412,026
Commercial Real Estate and Multi-family Residential Loans [Member] | Nonowner Occupied Loans [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	458,404	407,883
Commercial Real Estate and Multi-family Residential Loans [Member] | Multifamily Loans [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	127,632	79,425
Agri-business and Agricultural Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Less: Allowance for loan losses	(3,532)	(2,445)	$ (1,790)	$ (1,682)
Agri-business and Agricultural Loans [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	394,843	306,094
Agri-business and Agricultural Loans [Member] | Loans Secured By Farmland [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	172,633	164,375
Agri-business and Agricultural Loans [Member] | Loans For Agricultural Production [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	222,210	141,719
Other Commercial Loans [Member] | Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	98,270	85,075
Total Consumer 1 To 4 Family Mortgage Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	347,834	331,103
Total Consumer 1 To 4 Family Mortgage Loans [Member] | Closed End First Mortgage Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	163,155	158,062
Total Consumer 1 To 4 Family Mortgage Loans [Member] | Open End And Junior Lien Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	169,664	163,700
Total Consumer 1 To 4 Family Mortgage Loans [Member] | Residential Construction and Land Development Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total Commercial And Consumer Loans	$ 15,015	$ 9,341