Description Of Business And Significant Accounting Policies (Schedule Of Cash And Cash Equivalents) (Details) - USD ($) $ in Thousands	Oct. 01, 2016	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Accounting Policies [Abstract]
Cash	$ 175,396	$ 179,339
Cash Equivalents, at Carrying Value	257,568	177,767
Cash and cash equivalents	$ 432,964	$ 357,106	$ 346,591	$ 341,865