Income Taxes (Income Tax Benefits Realized from the Exercise of Nonqualified Stock Options, and Disqualifying Dispositions of Stock Sold Under our Employee Stock Purchase Plans) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2016	Oct. 02, 2015	Sep. 26, 2014
Income Tax Disclosure [Abstract]
Income tax benefits realized under stock plans	$ 1,500	$ 200	$ 3,400