Income Taxes - Income Tax Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Current
Canada	$ 0.0	$ 0.0	$ 0.0
Outside Canada	5.6	5.4	1.9
Income tax expense, Current	5.6	5.4	1.9
Deferred
Canada	0.0	0.0	0.0
Outside Canada	14.1	4.1	2.4
Income tax expense, Deferred	14.1	4.1	2.4
Income tax expense	$ 19.7	$ 9.5	$ 4.3