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Goodwill and Other Intangible Assets (Schedule Of Estimated Amortization Expense) (Details)
$ in Thousands
Sep. 30, 2016
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2016 $ 37,984
2017 37,762
2018 37,762
2019 37,750
2020 $ 37,748