Significant Accounting Policies (Details)	1 Months Ended	3 Months Ended	9 Months Ended
	Jul. 31, 2020 numberOfPositions	Oct. 31, 2020 USD ($)	Oct. 31, 2020 USD ($) segment	Nov. 02, 2019 USD ($)	Aug. 07, 2020 USD ($)	Feb. 01, 2020 USD ($)
Number of Reportable Segments | segment			3
Impairment of Long-Lived Assets Held-for-use			$ 122,900,000
Deferred Tax Assets, Net		$ 209,000,000.0	$ 209,000,000.0
Effective Income Tax Rate Reconciliation, Percent			33.40%	24.60%
Severance Costs			$ 10,000,000.0	$ 3,800,000
Business Combination, Integration Related Costs			1,000,000.0	9,800,000
Supplemental Unemployment Benefits, Severance Benefits		3,800,000	3,800,000	3,000,000.0
Increase (Decrease) in Inventory Adjustments			18,000,000.0
Long-term Debt, Fair Value		250,300,000	250,300,000
Long-term debt, gross		346,875,000	346,875,000	235,000,000		$ 190,000,000
Employee-related Liabilities		7,800,000	7,800,000
Debt [Member]
Long-term debt, gross		246,875,000	246,875,000	0	$ 250,000,000.0	$ 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	200
Government Grant Received		$ 1,400,000	9,300,000
Incremental costs related to COVID-19 safety precautions			$ 8,500,000
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		$ 30,100,000	$ 103,200,000
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