Leases - Lease Cash Flow Classifications (Details) $ in Millions	3 Months Ended
	Mar. 30, 2019 USD ($)
Leases [Abstract]
Operating cash flows for operating leases	$ 11.7
Operating cash flows for finance leases	0.1
Financing cash flows for finance leases	0.7
Leased assets obtained in exchange for new operating lease liabilities	$ 4.7