Business Segments (Sales and Long-lived Assets) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jan. 03, 2021	Sep. 27, 2020	Jun. 28, 2020	Mar. 29, 2020	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 31, 2019	Jan. 03, 2021	Dec. 29, 2019	Dec. 30, 2018
Net sales:
Net Sales	$ 809.3	$ 749.0	$ 743.3	$ 784.6	$ 834.2	$ 802.2	$ 782.0	$ 745.2	$ 3,086.2	$ 3,163.6	$ 2,901.8
Long-lived assets:
Long-lived assets	3,326.2				3,249.3				3,326.2	3,249.3	2,682.3
United States
Net sales:
Net Sales									2,078.7	2,179.6	2,044.9
Long-lived assets:
Long-lived assets	1,707.0				1,839.4				1,707.0	1,839.4	1,402.3
Canada
Net sales:
Net Sales									333.7	301.0	294.8
Long-lived assets:
Long-lived assets	372.9				355.0				372.9	355.0	264.6
United Kingdom
Net sales:
Net Sales									237.5	251.7	178.8
Long-lived assets:
Long-lived assets	539.5				492.2				539.5	492.2	414.9
The Netherlands
Net sales:
Net Sales									105.5	134.2	105.3
The Netherlands
Long-lived assets:
Long-lived assets	505.1				367.1				505.1	367.1	353.8
All other countries
Net sales:
Net Sales									330.8	297.1	278.0
Long-lived assets:
Long-lived assets	$ 201.7				$ 195.6				$ 201.7	$ 195.6	$ 246.7