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Investment Securities (Gross Realized Gains And Losses On Sales Of Available-For-Sale Securities) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Investment Holdings [Line Items]        
Gains $ 545 $ 226 $ 1,241 $ 542
Losses 383 207 383 407
Obligations Of States And Political Subdivisions        
Investment Holdings [Line Items]        
Gains 275 0 971 0
Losses 0 0 0 0
Residential Mortgage-Backed Securities And Collateralized Mortgage Obligations        
Investment Holdings [Line Items]        
Gains 270 226 270 542
Losses $ 383 $ 207 $ 383 $ 407