Employee Benefit Plans (Schedule Of Cost Of The Postretirement Benefit Plan) (Details) - Postretirement Benefit Plan - USD ($) $ in Thousands	12 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Oct. 01, 2016
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 84	$ 118	$ 161
Interest cost	281	288	468
Amortization of prior service credit	(470)	0	0
Amortization of actuarial gain	(511)	(487)	(572)
Net periodic postretirement benefit cost (income)	$ (616)	$ (81)	$ 57