Employee Benefit Plans (Schedule Of Changes In The Accumulated Benefit Obligation Of Unfunded Plan) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 29, 2012	Oct. 01, 2011
Defined Benefit Plan Disclosure [Line Items]
Amount recognized in accumulated other comprehensive loss, before taxes, Actuarial losses	$ (90,463)	$ (97,899)
Accumulated Postretirement Benefit Obligation (APBO) [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation at prior year measurement date	18,025	23,860
Service cost	330	491
Interest cost	785	1,103
Contributions by plan participants	1,510	1,453
Benefits paid	(2,634)	(2,460)
Actuarial losses (gains)	(656)	(6,521)
Retiree drug subsidy receipts	96	99
Projected benefit obligation at measurement date	17,456	18,025
Funded status	(17,456)	(18,025)
Accrued postretirement benefit liability	17,456	18,025
Amount recognized in accumulated other comprehensive loss, before taxes, Transition obligation	361	756
Amount recognized in accumulated other comprehensive loss, before taxes, Actuarial losses	(604)	52
Amount recognized in accumulated other comprehensive loss, before taxes	$ (243)	$ 808