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Securities Available For Sale (Summary Of Realized Gains And Losses And Other-Than-Temporary Impairment Losses On Securities) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Securities Available For Sale [Abstract]    
Proceeds from Sale of Securities Available for Sale $ 21,513 $ 8,941
Realized Gains 1,436 619
Net $ 1,436 $ 619