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Employee Benefit Plans - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 04, 2021
Mar. 29, 2020
Apr. 04, 2021
Mar. 29, 2020
Retirement Benefits [Abstract]        
Company contributions to pension and defined benefit plans, including discretionary amounts $ 0.9 $ 0.7 $ 3.7 $ 1.5