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Commitments And Contingencies (Minimum Annual Rental Commitments) (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Oct. 01, 2016
Commitments and Contingencies Disclosure [Abstract]      
Total lease expense $ 7,924 $ 7,506 $ 7,053
2019 4,827    
2020 2,994    
2021 1,862    
2022 1,282    
2023 717    
Thereafter 2,008    
Total $ 13,690