Leases - Components of Lease Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2021	Jun. 28, 2020	Jun. 27, 2021	Jun. 28, 2020
Leases [Abstract]
Operating lease cost	$ 37.5	$ 33.6	$ 73.3	$ 66.3
Finance lease cost:
Amortization of right-of-use assets	2.9	3.6	6.2	7.3
Interest on lease liabilities	0.2	0.3	0.4	0.5
Total finance lease cost	$ 3.1	$ 3.9	$ 6.6	$ 7.8