Other Information Supplemental Cash Payment (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 24, 2017	Sep. 25, 2016	Sep. 27, 2015
Supplemental Cash Flow Elements [Abstract]
Interest Paid	$ 58,844	$ 65,410	$ 72,937
Debt Financing and Reorganization Costs Paid	373	422	733
Income Taxes Paid, Net	$ 1,214	$ 269	$ 485