Leases (Supplemental Information) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021	Dec. 28, 2019
Leases [Abstract]
Operating Cash Flows from Operating Leases	$ 32.6	$ 29.7	$ 30.6
Operating Cash Flows from Finance Leases	1.1	0.3	0.3
Financing Cash Flows from Finance Leases	1.0	0.2	0.2
Leased Assets Obtained in Exchange for New Finance Lease Liabilities	73.8	0.0	0.0
Leased Assets Obtained in Exchange for New Operating Lease Liabilities	$ 65.4	$ 24.3	$ 13.6
Weighted Average Remaining Lease Term
Operating Leases	6 years	5 years 2 months 12 days	4 years 8 months 12 days
Finance Leases	17 years 9 months 18 days	7 years 3 months 18 days	8 years 3 months 18 days
Weighted Average Discount Rate
Operating Leases	7.90%	8.20%	8.80%
Finance Leases	5.20%	5.90%	5.90%