Lease Commitments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019	Dec. 29, 2019
Leases [Abstract]
Operating lease right-of-use assets	$ 120.4		$ 120.4		$ 127.1
Operating lease liability	131.1		131.1
Long-term operating lease liabilities	111.7		111.7		$ 119.3
Short term lease liability	19.4		19.4
Operating lease expense	$ 6.0	$ 5.8	$ 12.1	$ 11.6