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Goodwill And Intangible Assets (Estimated Remaining Amortization Expense For Intangible Assets) (Details)
$ in Thousands
Oct. 01, 2017
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
2017 $ 3,257
2018 11,305
2019 11,085
2020 9,629
2021 8,092
After 2021 $ 47,067