Leases (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019	Dec. 28, 2019
Lessee, Lease, Description [Line Items]
Finance Lease, Accumulated Amortization ROU	$ (10.3)		$ (10.3)
Lease Expense Disclosure [Abstract]
Operating Lease, Expense	11.8	$ 13.0
Finance Lease, Right-of-Use Asset, Amortization	0.2	0.2
Finance Lease, Interest Expense	0.0	0.1
Leases Supplemental Cash Flow Disclosure [Abstract]
Operating Lease, Payments	(11.7)	(12.6)
Finance Lease, Interest Payment on Liability	0.0	(0.1)
Finance Lease, Principal Payments	(0.3)	(0.3)
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	7.5	7.7
Lease Balance Sheet Disclosure [Abstract]
Operating Lease, Right-of-Use Asset	80.4		84.1
Operating Lease, Liability, Current	27.8		29.2
Operating Lease, Liability, Noncurrent	53.7		56.0
Operating Lease, Liability	81.5		85.2
Finance Lease, Gross PPE	17.5		17.9
Finance Lease, Right-of-Use Asset	7.2		7.6
Finance Lease, Liability, Current	1.3		1.3
Finance Lease, Liability, Noncurrent	2.0		2.3
Finance Lease, Liability	$ 3.3		$ 3.6
Operating Lease, Weighted Average Remaining Lease Term	4 years 3 months 18 days		4 years 6 months
Finance Lease, Weighted Average Remaining Lease Term	2 years 4 months 24 days		2 years 9 months 18 days
Operating Lease, Weighted Average Discount Rate, Percent	4.90%		5.20%
Finance Lease, Weighted Average Discount Rate, Percent	5.10%		5.10%
Lease Liability Maturity Schedule
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months	$ 24.5		$ 32.8
Lessee, Operating Lease, Liability, Payments, Due Year Two	24.0		22.6
Lessee, Operating Lease, Liability, Payments, Due Year Three	14.0		13.0
Lessee, Operating Lease, Liability, Payments, Due Year Four	8.6		7.5
Lessee, Operating Lease, Liability, Payments, Due Year Five	5.8		5.6
Lessee, Operating Lease, Liability, Payments, Due after Year Five	12.8		13.0
Lessee, Operating Lease, Liability, Payments, Due	89.7		94.5
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	8.2		9.3
Finance Lease, Liability, Payments, Due Next Twelve Months	1.1		1.4
Finance Lease, Liability, Payments, Due Year Two	1.4		1.4
Finance Lease, Liability, Payments, Due Year Three	1.0		1.0
Finance Lease, Liability, Payments, Due Year Four	0.0		0.0
Finance Lease, Liability, Payments, Due Year Five	0.0		0.0
Finance Lease, Liability, Payments, Due after Year Five	0.0		0.0
Finance Lease, Liability, Payment, Due	3.5		3.8
Finance Lease, Liability, Undiscounted Excess Amount	0.2		$ 0.2
Finance Lease, cost	$ 0.2	$ 0.3
Minimum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Renewal Term	1 year
Lessee, Finance Lease, Renewal Term	1 year
Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Renewal Term	5 years
Lessee, Finance Lease, Renewal Term	5 years