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Intangible Assets (Schedule Of Annual Amortization Expense) (Details)
$ in Thousands
Dec. 31, 2015
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2016 $ 9,760
2017 9,255
2018 8,478
2019 6,958
2020 4,468
Total $ 38,919