Acquisitions and Disposition - Pro Forma Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020
Business Acquisition [Line Items]
Pro forma revenues	$ 1,195.4	$ 1,065.6	$ 3,690.6	$ 3,356.2
Pro forma net earnings (loss)	$ 34.8	$ 17.5	$ 86.0	$ (95.3)