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Goodwill And Intangibles (Estimated Future Amortization Expense For Intangibles) (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]    
2018 $ 1,870  
2019 7,400  
2020 6,747  
2021 6,574  
2022 5,775  
Thereafter 17,478  
Net Carrying Amount $ 45,844 $ 51,223