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Goodwill And Other Intangible Assets (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Dec. 31, 2015
Goodwill And Other Intangible Assets [Abstract]          
Goodwill $ 66,417   $ 66,417   $ 60,402
Amortization during the year $ 309 $ 233 $ 946 $ 714