Business Segments (Assets and Goodwill by Segment) (Details) - USD ($) $ in Millions	Jul. 03, 2021	Jan. 02, 2021	Jun. 27, 2020	Dec. 28, 2019
Segment Reporting Information [Line Items]
Total assets	$ 2,303.6	$ 2,137.4	$ 2,589.4
Goodwill	443.6	442.4	435.6	$ 438.9
Wolverine Michigan Group [Member]
Segment Reporting Information [Line Items]
Total assets	702.4	626.9	714.4
Goodwill	145.7	145.4	143.2
Wolverine Boston Group [Member]
Segment Reporting Information [Line Items]
Total assets	1,157.9	1,077.8	1,307.0
Goodwill	297.9	297.0	292.4
Other [Member]
Segment Reporting Information [Line Items]
Total assets	43.4	31.4	37.0
Corporate [Member]
Segment Reporting Information [Line Items]
Total assets	$ 399.9	$ 401.3	$ 531.0