Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Mar. 28, 2020	Dec. 28, 2019
Finance leases:
Property and equipment - gross	$ 9.0	$ 9.2
Accumulated depreciation and amortization	(1.8)	(1.5)
Property and equipment - net	7.2	7.7
Other accrued liabilities	2.8	2.8
Other long-term liabilities	9.1	10.0
Total finance lease liabilities	11.9	12.8
Operating leases:
Operating lease right-of-use assets	51.3	55.6
Other accrued liabilities	17.9	19.5
Operating lease liabilities	34.7	37.5
Total operating lease liabilities	$ 52.6	$ 57.0