Significant Accounting Policies (Details)	1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 31, 2020 numberOfPositions	Aug. 01, 2020 USD ($)	Aug. 03, 2019 USD ($)	Aug. 01, 2020 USD ($) segment	Aug. 03, 2019 USD ($)
Number of Reportable Segments | segment				3
Impairment of Long-Lived Assets Held-for-use				$ 92,800,000
Deferred Tax Assets, Net		$ 182,900,000		$ 182,900,000
Effective Income Tax Rate Reconciliation, Percent				32.50%	27.90%
Severance Costs		7,300,000	$ 2,400,000	$ 9,000,000.0	$ 3,600,000
Business Combination, Integration Related Costs		1,200,000	7,200,000	1,200,000	8,500,000
Supplemental Unemployment Benefits, Severance Benefits		8,400,000	$ 4,600,000	8,400,000	4,600,000
Increase (Decrease) in Inventory Adjustments				64,000,000.0
COVID Pandemic [Member]
Restructuring and Related Cost, Number of Positions Eliminated | numberOfPositions	1,000
Restructuring and Related Cost, Number of Vacant Positions Not Filled | numberOfPositions	220
Government Grant Received		3,500,000		7,900,000
Incremental costs related to COVID-19 safety precautions		$ 6,400,000		$ 8,100,000
ABG-Camuto, LLC | Designer Brands Inc.
Noncontrolling Interest in joint ventures		40.00%		40.00%
U.S. Retail
Impairment of Long-Lived Assets Held-for-use		$ 6,700,000		$ 73,100,000
Brand Portfolio
Goodwill, impairment loss				19,989,000	$ 0
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)				6,500,000
Canada Retail
Impairment of Long-Lived Assets Held-for-use				$ 19,700,000