Employee Benefit Plans (Schedule Of Changes In The Accumulated Benefit Obligation Of Unfunded Plan) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 30, 2023
Change in Accumulated Postretirement Benefit Obligation (APBO):
Net actuarial gain (loss) during period	$ 20,190	$ (1,546)
Postretirement Benefit Plan
Change in Accumulated Postretirement Benefit Obligation (APBO):
Projected benefit obligation at prior year measurement date	2,253	2,840
Service cost	6	11	$ 16
Interest cost	88	144	166
Contributions by plan participants	328	382
Benefits paid	(828)	(798)
Actuarial (gains) losses	(36)	(326)
Projected benefit obligation at measurement date	1,811	2,253	$ 2,840
Funded status	(1,811)	(2,253)
Accrued postretirement benefit liability	1,811	2,253
Net actuarial gain (loss) during period	2,362	3,717
Amount recognized in AOCIL, before taxes	$ 2,362	$ 3,717