Employee Benefit Plans (Schedule Of Changes In The Accumulated Benefit Obligation Of Unfunded Plan) (Details) - Postretirement Benefit Plan - USD ($) $ in Thousands	12 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Oct. 01, 2016
Change in Accumulated Postretirement Benefit Obligation (APBO):
Projected benefit obligation at prior year measurement date	$ 10,513	$ 12,825
Service cost	84	118	$ 161
Interest cost	281	288	468
Contributions by plan participants	629	1,699
Benefits paid	(1,402)	(2,448)
Actuarial (gains) losses	(1,248)	(769)
Plan amendment	0	(1,200)
Projected benefit obligation at measurement date	8,857	10,513	$ 12,825
Funded status	(8,857)	(10,513)
Accrued postretirement benefit liability	8,857	10,513
Prior service credit	729	1,200
Actuarial gains	4,915	4,178
Amount recognized in AOCIL, before taxes	$ 5,644	$ 5,378