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Employee Benefit Plans (Schedule Of Changes In The Accumulated Benefit Obligation Of Unfunded Plan) (Details) - Postretirement Benefit Plan - USD ($)
$ in Thousands
12 Months Ended
Oct. 03, 2020
Sep. 28, 2019
Sep. 29, 2018
Change in Accumulated Postretirement Benefit Obligation (APBO):      
Projected benefit obligation at prior year measurement date $ 8,810 $ 8,857  
Service cost 55 68 $ 84
Interest cost 211 315 281
Contributions by plan participants 629 644  
Benefits paid (668) (1,134)  
Actuarial (gains) losses 237 60  
Projected benefit obligation at measurement date 9,274 8,810 $ 8,857
Funded status (9,274) (8,810)  
Accrued postretirement benefit liability 9,274 8,810  
Prior service credit 0 259  
Actuarial gains 3,297 4,142  
Amount recognized in AOCIL, before taxes $ 3,297 $ 4,401