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Goodwill - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 9 Months Ended
Sep. 27, 2020
Mar. 29, 2020
Sep. 29, 2019
Jun. 28, 2020
Sep. 27, 2020
Sep. 29, 2019
Goodwill and Intangible Assets Disclosure [Abstract]            
Goodwill impairment charge $ 0.0 $ 147.7 $ 0.0 $ 147.7 $ 147.7 $ 0.0