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Property, Plant And Equipment Property, Plant And Equipment (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Oct. 02, 2021
Oct. 03, 2020
Sep. 28, 2019
Property, Plant and Equipment [Abstract]      
Impairment of Long-Lived Assets Held-for-use $ 356 $ 25,419 $ 4,464