v2.4.0.8
LOANS, Loan Summary (Details) (USD $)
 3 Months Ended
Mar. 31, 2014
Dec. 31, 2013
Mar. 31, 2013
Dec. 31, 2012
Loans receivable, net [Abstract]        
Typical contract term of consumer mortgages, minimum 15 years      
Typical contract term of consumer mortgages, maximum 30 years      
Typical contract term of home equity loans, maximum 30 years      
Gross loans, including deferred origination costs $ 4,096,358,000 $ 4,109,083,000    
Allowance for loan losses (44,197,000) (44,319,000) (42,913,000) (42,888,000)
Net loans 4,052,161,000 4,064,764,000    
Credit impaired acquired loans, outstanding balance 14,200,000 15,500,000    
Accretable discount related to credit impaired acquired loans [Roll forward]        
Beginning Balance 997,000      
Accretion recognized, year-to-date (203,000)      
Net reclassification to accretable from nonaccretable 90,000      
Ending Balance 884,000      
Consumer Mortgage [Member]
        
Loans receivable, net [Abstract]        
Gross loans, including deferred origination costs 1,579,322,000 1,582,058,000    
Business Lending [Member]
        
Loans receivable, net [Abstract]        
Gross loans, including deferred origination costs 1,246,070,000 1,260,364,000    
Consumer Indirect [Member]
        
Loans receivable, net [Abstract]        
Gross loans, including deferred origination costs 755,849,000 740,002,000    
Consumer Direct [Member]
        
Loans receivable, net [Abstract]        
Gross loans, including deferred origination costs 174,357,000 180,139,000    
Home Equity [Member]
        
Loans receivable, net [Abstract]        
Gross loans, including deferred origination costs $ 340,760,000 $ 346,520,000