Leases - Narrative (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 28, 2019 USD ($)	Jun. 28, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Operating lease cost	$ 20.2	$ 38.0
Cash paid for operating leases		$ 32.1
Lease term	7 years 4 months 24 days	7 years 4 months 24 days
Weighted average discount rate	3.40%	3.40%
Fixed payments of leases not yet commenced		$ 1.0
ROU assets obtained in exchange for operating lease obligations	$ 39.4	$ 43.9
Minimum
Lessee, Lease, Description [Line Items]
Lease term of leases not yet commenced	3 years	3 years
Maximum
Lessee, Lease, Description [Line Items]
Option to extend lease, period	15 years	15 years
Option to terminate lease, period		1 year
Lease term of leases not yet commenced	5 years	5 years
Acquisitions, ASP
Lessee, Lease, Description [Line Items]
ROU assets obtained in exchange for operating lease obligations	$ 29.8	$ 29.8