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Business Segments (Assets and Goodwill by Segment) (Details) - USD ($) $ in Millions	Jun. 27, 2020	Dec. 28, 2019	Jun. 29, 2019	Dec. 29, 2018
Segment Reporting Information [Line Items]
Total assets	$ 2,589.4	$ 2,480.0	$ 2,442.9
Goodwill	435.6	438.9	438.5	$ 424.4
Wolverine Michigan Group [Member]
Segment Reporting Information [Line Items]
Total assets	714.4	773.8	774.9
Goodwill	143.2	144.4	143.8
Wolverine Boston Group [Member]
Segment Reporting Information [Line Items]
Total assets	1,307.0	1,354.8	1,426.2
Goodwill	292.4	294.5	294.7
Other [Member]
Segment Reporting Information [Line Items]
Total assets	37.0	38.4	43.6
Corporate [Member]
Segment Reporting Information [Line Items]
Total assets	$ 531.0	$ 313.0	$ 198.2

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- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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