Leases - Components of Leases Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Jan. 01, 2023	Jan. 02, 2022
Finance lease cost:
Amortization of right-of-use assets	$ 19.9	$ 13.2	$ 10.8
Interest on lease liabilities	4.0	2.0	1.5
Short-term lease cost	3.3	2.1	1.5
Variable lease cost	1.9	1.4	0.9
Sublease income	(0.9)	(1.1)	(1.1)
Total lease cost	124.1	99.5	87.7
Cost of goods sold
Finance lease cost:
Operating lease cost	8.2	5.7	3.7
Selling, general and administrative expenses
Finance lease cost:
Operating lease cost	$ 87.7	$ 76.2	$ 70.4