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Goodwill And Intangible Assets (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended
Jan. 02, 2016
Jan. 03, 2015
Goodwill and Intangible Assets Disclosure [Abstract]    
Goodwill, accumulated impairment loss $ 38,200  
Amortization of acquired intangible assets 5,811 $ 6,660
Future amortization expenses, 2016 22,800  
Future amortization expenses, 2017 19,400  
Future amortization expenses, 2018 18,000  
Future amortization expenses, 2019 16,700  
Future amortization expenses, 2020 $ 15,300