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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Information 2(Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Servicing Assets      
Servicing fees $ 2,415 $ 2,065 $ 2,038
Mortgage Banking Derivatives      
Income/(expense) related to derivatives $ (275) $ 450 $ (1,675)
Buildings | Minimum      
Premises and equipment      
Useful lives 30 years    
Buildings | Maximum      
Premises and equipment      
Useful lives 39 years    
Related components | Minimum      
Premises and equipment      
Useful lives 5 years    
Related components | Maximum      
Premises and equipment      
Useful lives 15 years    
Furniture, fixtures and equipment | Minimum      
Premises and equipment      
Useful lives 3 years    
Furniture, fixtures and equipment | Maximum      
Premises and equipment      
Useful lives 10 years