Goodwill and Other Intangible Assets - Schedule of Carrying Amount and Accumulated Amortization of Identifiable Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 29, 2022	Jan. 30, 2021
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 445.1	$ 445.1
Accumulated Amortization	74.8	67.9
JOANN Trade Name
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	325.0	325.0
Accumulated Amortization	0.0	0.0
Joann.com Domain Name
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	10.0	10.0
Accumulated Amortization	$ 0.0	0.0
Creativebug Trade Name
Finite Lived Intangible Assets [Line Items]
Finite Lived Intangible Asset Useful Life	10 years
Gross Carrying Amount	$ 0.1	0.1
Accumulated Amortization	$ 0.0	0.0
Customer Relationships
Finite Lived Intangible Assets [Line Items]
Finite Lived Intangible Asset Useful Life	16 years
Gross Carrying Amount	$ 110.0	110.0
Accumulated Amortization	$ 74.8	$ 67.9