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Servicing Assets (Narratives) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Servicing Assets At Fair Value [Line Items]        
Servicing Asset at Fair Value, Amount $ 10,716 $ 9,821 $ 9,858 $ 7,455
Servicing and other loan fees 1,844 1,758 1,689  
Mortgage related servicing assets [Member]        
Servicing Assets At Fair Value [Line Items]        
Servicing and other loan fees $ 4,100 $ 3,900 $ 3,700