Description of Business (Details) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Feb. 01, 2020 USD ($) Store	Feb. 02, 2019 USD ($)	Feb. 01, 2020 USD ($) Store	Feb. 02, 2019 USD ($)	Aug. 03, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of stores	2,764		2,764
Net sales | $	$ 1,216.9	$ 1,271.4	$ 2,336.5	$ 2,418.8	$ 4,700.0
Number of Reportable Segments			3
Justice
Segment Reporting Information [Line Items]
Number of stores	820		820
Lane Bryant
Segment Reporting Information [Line Items]
Number of stores	688		688
Loft
Segment Reporting Information [Line Items]
Number of stores	666		666
Catherines
Segment Reporting Information [Line Items]
Number of stores	299		299
ANN
Segment Reporting Information [Line Items]
Number of stores	291		291