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Exit and Disposal Activities - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended	9 Months Ended	12 Months Ended
	Jan. 02, 2021	Sep. 26, 2020	Jun. 27, 2020	Sep. 26, 2020	Jan. 01, 2022	Dec. 28, 2019
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs		$ 0.0		$ 11.5
Provision		0.0	$ 11.4	11.4
Restructuring reserve		$ 10.8	$ 11.4	$ 10.8		$ 0.0
Forecast
Restructuring Cost and Reserve [Line Items]
Exit and disposal costs	$ 3.0				$ 7.1