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Goodwill And Other Intangible Assets (Schedule Of Estimated Future Amortization Expense) (Details)
$ in Thousands
Sep. 30, 2017
USD ($)
Goodwill And Other Intangible Assets [Abstract]  
2017 (remaining three months) $ 2,624
2018 10,252
2019 10,091
2020 9,319
2021 $ 6,389