Leases (Details) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 27, 2019 USD ($)	Sep. 27, 2019 USD ($)
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 84.7	$ 84.7
Operating Lease, Liability, Current	18.8	18.8
Operating Lease, Liability, Noncurrent	72.1	72.1
Operating Lease, Liability	90.9	90.9
Operating Lease, Cost	5.4	15.6
Short-term Lease, Cost	1.0	3.2
Sublease Income	(0.2)	(0.6)
Lease, Cost	$ 6.2	$ 18.2
Operating Lease, Weighted Average Remaining Lease Term	7 years 6 months	7 years 6 months
Operating Lease, Weighted Average Discount Rate, Percent	3.80%	3.80%
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months	$ 5.7	$ 5.7
Lessee, Operating Lease, Liability, Payments, Due Year Two	21.6	21.6
Lessee, Operating Lease, Liability, Payments, Due Year Three	16.7	16.7
Lessee, Operating Lease, Liability, Payments, Due Year Four	12.6	12.6
Lessee, Operating Lease, Liability, Payments, Due Year Five	11.7	11.7
Capital Leases, Future Minimum Payments, Receivable Thereafter	36.7	36.7
Lessee, Operating Lease, Liability, Payments, Due	105.0	105.0
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	$ (14.1)	(14.1)
Operating Lease, Payments		17.1
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability		$ 7.7