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Property, Plant and Equipment - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 04, 2021
Mar. 29, 2020
Apr. 04, 2021
Mar. 29, 2020
Property, Plant and Equipment [Abstract]        
Depreciation expense $ 18.9 $ 19.4 $ 37.4 $ 44.0