Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS (Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details)

v3.8.0.1
FAIR VALUE MEASUREMENTS (Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
ASSETS    
Securities available for sale $ 968,361 $ 946,764
Loans held for sale 30,896 36,487
Cash flow hedges 120 211
Fair value hedges 1,253 1,437
Best efforts forward delivery commitments 245 1,469
LIABILITIES    
Interest rate swap 3,051 1,005
Cash flow hedges 9,460 9,619
Fair value hedges 371 296
Interest Rate Lock Commitments    
ASSETS    
Interest rate lock commitments 685 610
Obligations of States and Political Subdivisions    
ASSETS    
Securities available for sale 292,199 275,890
Corporate and Other Bonds    
ASSETS    
Securities available for sale 115,422 121,780
Mortgage-Backed Securities    
ASSETS    
Securities available for sale 546,904 535,286
Other Securities    
ASSETS    
Securities available for sale 13,836 13,808
Quoted Prices in Active Markets for Identical Assets Level 1    
ASSETS    
Securities available for sale 0 0
Loans held for sale 0 0
Cash flow hedges 0 0
Fair value hedges 0 0
Best efforts forward delivery commitments 0 0
LIABILITIES    
Interest rate swap 0 0
Cash flow hedges 0 0
Fair value hedges 0 0
Quoted Prices in Active Markets for Identical Assets Level 1 | Interest Rate Lock Commitments    
ASSETS    
Interest rate lock commitments 0 0
Significant Other Observable Inputs Level 2    
ASSETS    
Securities available for sale 968,361 946,764
Loans held for sale 30,896 36,487
Cash flow hedges 120 211
Fair value hedges 1,253 1,437
Best efforts forward delivery commitments 0 0
LIABILITIES    
Interest rate swap 3,051 1,005
Cash flow hedges 9,460 9,619
Fair value hedges 371 296
Significant Other Observable Inputs Level 2 | Interest Rate Lock Commitments    
ASSETS    
Interest rate lock commitments 0 0
Significant Unobservable Inputs Level 3    
ASSETS    
Securities available for sale 0 0
Loans held for sale 0 0
Cash flow hedges 0 0
Fair value hedges 0 0
Best efforts forward delivery commitments 245 1,469
LIABILITIES    
Interest rate swap 0 0
Cash flow hedges 0 0
Fair value hedges 0 0
Significant Unobservable Inputs Level 3 | Interest Rate Lock Commitments    
ASSETS    
Interest rate lock commitments 685 610
Recurring    
ASSETS    
Loans held for sale 30,896 36,487
Interest rate swap 3,051 1,005
Cash flow hedges 120 211
Fair value hedges 1,253 1,437
Best efforts forward delivery commitments 245 1,469
LIABILITIES    
Interest rate swap 3,051 1,005
Cash flow hedges 9,460 9,619
Fair value hedges 371 296
Recurring | Interest Rate Lock Commitments    
ASSETS    
Interest rate lock commitments 685 610
Recurring | Obligations of States and Political Subdivisions    
ASSETS    
Securities available for sale 292,199 275,890
Recurring | Corporate and Other Bonds    
ASSETS    
Securities available for sale 115,422 121,780
Recurring | Mortgage-Backed Securities    
ASSETS    
Securities available for sale 546,904 535,286
Recurring | Other Securities    
ASSETS    
Securities available for sale 13,836 13,808
Recurring | Quoted Prices in Active Markets for Identical Assets Level 1    
ASSETS    
Loans held for sale 0 0
Interest rate swap 0 0
Cash flow hedges 0 0
Fair value hedges 0 0
Best efforts forward delivery commitments 0 0
LIABILITIES    
Interest rate swap 0 0
Cash flow hedges 0 0
Fair value hedges 0 0
Recurring | Quoted Prices in Active Markets for Identical Assets Level 1 | Interest Rate Lock Commitments    
ASSETS    
Interest rate lock commitments 0 0
Recurring | Quoted Prices in Active Markets for Identical Assets Level 1 | Obligations of States and Political Subdivisions    
ASSETS    
Securities available for sale 0 0
Recurring | Quoted Prices in Active Markets for Identical Assets Level 1 | Corporate and Other Bonds    
ASSETS    
Securities available for sale 0 0
Recurring | Quoted Prices in Active Markets for Identical Assets Level 1 | Mortgage-Backed Securities    
ASSETS    
Securities available for sale 0 0
Recurring | Quoted Prices in Active Markets for Identical Assets Level 1 | Other Securities    
ASSETS    
Securities available for sale 0 0
Recurring | Significant Other Observable Inputs Level 2    
ASSETS    
Loans held for sale 30,896 36,487
Interest rate swap 3,051 1,005
Cash flow hedges 120 211
Fair value hedges 1,253 1,437
Best efforts forward delivery commitments 0 0
LIABILITIES    
Interest rate swap 3,051 1,005
Cash flow hedges 9,460 9,619
Fair value hedges 371 296
Recurring | Significant Other Observable Inputs Level 2 | Interest Rate Lock Commitments    
ASSETS    
Interest rate lock commitments 0 0
Recurring | Significant Other Observable Inputs Level 2 | Obligations of States and Political Subdivisions    
ASSETS    
Securities available for sale 292,199 275,890
Recurring | Significant Other Observable Inputs Level 2 | Corporate and Other Bonds    
ASSETS    
Securities available for sale 115,422 121,780
Recurring | Significant Other Observable Inputs Level 2 | Mortgage-Backed Securities    
ASSETS    
Securities available for sale 546,904 535,286
Recurring | Significant Other Observable Inputs Level 2 | Other Securities    
ASSETS    
Securities available for sale 13,836 13,808
Recurring | Significant Unobservable Inputs Level 3    
ASSETS    
Loans held for sale 0 0
Interest rate swap 0 0
Cash flow hedges 0 0
Fair value hedges 0 0
Best efforts forward delivery commitments 245 1,469
LIABILITIES    
Interest rate swap 0 0
Cash flow hedges 0 0
Fair value hedges 0 0
Recurring | Significant Unobservable Inputs Level 3 | Interest Rate Lock Commitments    
ASSETS    
Interest rate lock commitments 685 610
Recurring | Significant Unobservable Inputs Level 3 | Obligations of States and Political Subdivisions    
ASSETS    
Securities available for sale 0 0
Recurring | Significant Unobservable Inputs Level 3 | Corporate and Other Bonds    
ASSETS    
Securities available for sale 0 0
Recurring | Significant Unobservable Inputs Level 3 | Mortgage-Backed Securities    
ASSETS    
Securities available for sale 0 0
Recurring | Significant Unobservable Inputs Level 3 | Other Securities    
ASSETS    
Securities available for sale $ 0 $ 0