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Quarterly Results of Operations (Unaudited) - Company's Unaudited Quarterly Results of Operations (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended							4 Months Ended	12 Months Ended
	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Sep. 10, 2016	Jun. 18, 2016	Mar. 26, 2016	Dec. 31, 2016	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 578.6	$ 581.3	$ 598.8	$ 591.3	$ 603.7	$ 583.7	$ 577.6	$ 729.6	$ 2,350.0	$ 2,494.6	$ 2,691.6
Gross profit	222.1	230.7	226.9	234.7	237.3	226.6	228.8	267.2	914.4	959.9	1,051.7
Net earnings (loss) attributable to Wolverine World Wide, Inc.	$ (60.3)	$ 23.2	$ 20.7	$ 16.7	$ 48.2	$ 24.0	$ 17.4	$ (1.9)	$ 0.3	$ 87.7	$ 122.8
Net earnings (loss) per share:
Earnings per share - Basic	$ (0.65)	$ 0.24	$ 0.21	$ 0.17	$ 0.49	$ 0.25	$ 0.18	$ (0.02)	$ 0.00	$ 0.90	$ 1.22
Earnings per share - Diluted	$ (0.65)	$ 0.24	$ 0.21	$ 0.17	$ 0.49	$ 0.24	$ 0.18	$ (0.02)	$ 0.00	$ 0.89	$ 1.20

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