Goodwill And Intangible Assets (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill impairment	$ 0	$ 38,200	$ 0
Amortization of acquired intangible assets	29,907	31,137	31,235
Future amortization expenses, 2015	25,300
Future amortization expenses, 2016	23,800
Future amortization expenses, 2017	20,500
Future amortization expenses, 2018	18,800
Future amortization expenses, 2019	$ 16,800