Employee Benefit Plans (Schedule Of Cost Of The Postretirement Benefit Plan) (Details) - Postretirement Benefit Plan - USD ($) $ in Thousands	12 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 30, 2023
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 6	$ 11	$ 16
Interest cost	88	144	166
Amortization of actuarial gain	(1,391)	(1,861)	(2,321)
Total Pension Expense (Income)	$ (1,297)	$ (1,706)	$ (2,139)
Interest cost	Other Nonoperating Income (Expense)
Amortization of actuarial gain	Other Nonoperating Income (Expense)