Leases - Balance Sheet Location of Assets and Liabilities (Details) - USD ($) $ in Millions	Jul. 03, 2021	Dec. 31, 2020
Lessee, Lease, Description [Line Items]
Operating lease assets	$ 171.3	$ 154.7
Finance leases	31.0	29.8
Right-of-Use Asset	202.3	184.5
Operating lease liability, current	27.9	28.3
Finance lease liability, current	5.2	6.7
Operating lease liability, noncurrent	149.6	132.5
Finance lease liability, noncurrent	23.3	20.2
Present value of lease liabilities	206.0	187.7
Total operating lease liabilities	177.5	160.8
Total finance lease liabilities	$ 28.5	$ 26.9
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:OtherAssets	us-gaap:OtherAssets
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:OtherLiabilitiesCurrent	us-gaap:OtherLiabilitiesCurrent
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:DebtCurrent	us-gaap:DebtCurrent
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other non-current liabilities	Other non-current liabilities
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Long-term debt, less current portion	Long-term debt, less current portion
Unallocated
Lessee, Lease, Description [Line Items]
Operating lease assets	$ 40.9	$ 44.4
Finance leases	6.3	7.2
Total operating lease liabilities	45.6	49.8
Total finance lease liabilities	6.5	7.4
CSCA | Operating Segments
Lessee, Lease, Description [Line Items]
Operating lease assets	98.1	75.9
Finance leases	16.1	16.7
Total operating lease liabilities	98.2	75.8
Total finance lease liabilities	16.6	17.0
CSCI | Operating Segments
Lessee, Lease, Description [Line Items]
Operating lease assets	32.3	34.4
Finance leases	8.6	5.9
Total operating lease liabilities	33.7	35.2
Total finance lease liabilities	$ 5.4	$ 2.5