Restructuring and Related Charges (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 27, 2024	Mar. 29, 2024	Sep. 29, 2023	Sep. 27, 2024	Sep. 29, 2023	Dec. 01, 2021	Feb. 01, 2018
Restructuring Cost and Reserve
Restructuring charges, net	$ 0.1		$ (0.1)	$ 10.5	$ 0.9
Total Restructuring And Related Expense				10.5	1.7
StrataGraft
Restructuring Cost and Reserve
Other Nonrecurring Gain		$ 2.5
Gain (Loss) on Termination of Lease		5.1
Lease Termination Penalty		$ 2.6
Specialty Brands
Restructuring Cost and Reserve
Total Restructuring And Related Expense	0.1		0.0	10.5	0.0
Restructuring Fiscal 2018 Plan
Restructuring Cost and Reserve
Total Restructuring And Related Expense	0.0		(0.1)	0.0	1.7
Restructuring Fiscal 2018 Plan | Minimum
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost							$ 100.0
Restructuring Fiscal 2018 Plan | Maximum
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost							$ 125.0
Restructuring Fiscal 2021 Plan
Restructuring Cost and Reserve
Total Restructuring And Related Expense	$ 0.1		$ 0.0	$ 10.5	$ 0.0
Restructuring Fiscal 2021 Plan | Minimum
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost						$ 50.0
Restructuring Fiscal 2021 Plan | Maximum
Restructuring Cost and Reserve
Restructuring and Related Cost, Expected Cost						$ 100.0