New Accounting Standards Additional Information (Details) - USD ($) $ in Millions	Mar. 30, 2019	Dec. 29, 2018	Mar. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease right-of-use assets, net	$ 157.2	$ 0.0	$ 0.0
Operating Lease, Liability	$ 175.9
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease right-of-use assets, net		157.3
Operating Lease, Liability		$ 178.1