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Employee Benefit Plans (Schedule Of Changes In The Accumulated Benefit Obligation Of Unfunded Plan) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2023
Oct. 01, 2022
Oct. 02, 2021
Change in Accumulated Postretirement Benefit Obligation (APBO):      
Net actuarial gain (loss) during period $ (8,432) $ 15,521  
Postretirement Benefit Plan      
Change in Accumulated Postretirement Benefit Obligation (APBO):      
Projected benefit obligation at prior year measurement date 3,674 6,281  
Service cost 16 33 $ 52
Interest cost 166 90 124
Contributions by plan participants 453 559  
Benefits paid (903) (478)  
Actuarial (gains) losses (566) (2,811)  
Projected benefit obligation at measurement date 2,840 3,674 $ 6,281
Funded status (2,840) (3,674)  
Accrued postretirement benefit liability 2,840 3,674  
Net actuarial gain (loss) during period 5,252 7,579  
Amount recognized in AOCIL, before taxes $ 5,252 $ 7,579