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Goodwill And Other Intangible Assets (Schedule Of Estimated Future Amortization Expense) (Details)
$ in Thousands
Dec. 31, 2015
USD ($)
Goodwill And Other Intangible Assets [Abstract]  
2016 $ 12,951
2017 10,661
2018 9,764
2019 9,695
2020 $ 9,170