Segment Information (Details) $ in Millions		3 Months Ended				6 Months Ended		12 Months Ended
		Feb. 01, 2020 USD ($)		Feb. 02, 2019 USD ($)		Feb. 01, 2020 USD ($) segment	Feb. 02, 2019 USD ($)	Aug. 03, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment						3
Net sales		$ 1,216.9		$ 1,271.4		$ 2,336.5	$ 2,418.8	$ 4,700.0
Total operating loss	[1]	(140.3)		(63.9)		(125.8)	(62.6)
Unallocated restructuring and other related charges	[1]	0.5	[2]	(13.5)	[2]	(3.3)	(21.4)
Impairment of goodwill	[1]	63.4		0.0		63.4	0.0
Impairment of Intangible Assets (Excluding Goodwill)	[1]	46.9		0.0		46.9	0.0
Total depreciation and amortization expense						142.5	165.3
Depreciation and Amortization expense, Continuing Operations		64.4		71.4		131.6	142.0
Overhead expenses				45.6		18.3	89.4
Total restructuring and other related charges		(0.5)		13.5		3.3	21.4
Operating Segments | Premium Fashion
Segment Reporting Information [Line Items]
Net sales		624.1		638.9		1,209.1	1,234.9
Total operating loss	[1]	8.9		(5.1)		39.0	32.0
Total depreciation and amortization expense		30.5		34.5		62.2	68.6
Operating Segments | Plus Fashion
Segment Reporting Information [Line Items]
Net sales		318.6		305.8		598.4	591.2
Total operating loss	[1]	(9.7)		(34.0)		(15.6)	(60.3)
Total depreciation and amortization expense		16.7		18.9		34.1	37.4
Operating Segments | Kids Fashion
Segment Reporting Information [Line Items]
Net sales		274.2		326.7		529.0	592.7
Total operating loss	[1]	(29.7)		(11.3)		(35.6)	(12.9)
Total depreciation and amortization expense		17.2		18.0		35.3	36.0
Cash-related restructuring charges
Segment Reporting Information [Line Items]
Unallocated restructuring and other related charges		0.5		(13.5)		(3.3)	(21.4)
Total severance and benefit costs	[3],[4]	(0.9)		0.3		2.9	(0.2)
Total professional fees and other related charges	[4],[5]	0.4		13.2		0.4	21.6
Cash-related restructuring charges | Operating Segments | Premium Fashion
Segment Reporting Information [Line Items]
Total severance and benefit costs	[4]	0.0		0.2		(0.4)	0.2
Cash-related restructuring charges | Operating Segments | Plus Fashion
Segment Reporting Information [Line Items]
Total severance and benefit costs	[4]	(0.2)		0.1		(0.5)	0.1
Total professional fees and other related charges	[4]	0.0		0.0		0.0	(0.1)
Cash-related restructuring charges | Operating Segments | Kids Fashion
Segment Reporting Information [Line Items]
Total severance and benefit costs	[4]	0.0		0.1		(0.1)	0.0
Cash-related restructuring charges | Corporate, Non-Segment
Segment Reporting Information [Line Items]
Total severance and benefit costs	[4]	(0.7)		(0.1)		3.9	(0.5)
Total professional fees and other related charges	[4]	$ 0.4		$ 13.2		$ 0.4	$ 21.7

[1] For the three and six months ended February 1, 2020 and February 2, 2019, respectively, the maurices and Dressbarn businesses were classified as discontinued operations within the condensed consolidated financial statements. As a result, shared expenses of $18.3 million for the six months ended February 1, 2020, as well as $45.6 million and $89.4 million for the three and six months ended February 2, 2019, which were previously allocated to maurices and Dressbarn have been reallocated to the remaining operating units.

[2] Restructuring and other related charges are as follows: Three Months Ended Six Months Ended February 1, 2020 February 2, 2019 February 1, 2020 February 2, 2019 (millions) (millions)Cash related charges (i): Severance and benefit costs: Premium Fashion$— $0.2 $(0.4) $0.2 Plus Fashion(0.2) 0.1 (0.5) 0.1 Kids Fashion— 0.1 (0.1) — Corporate(0.7) (0.1) 3.9 (0.5)Total severance and benefit costs(0.9) 0.3 2.9 (0.2)Professional fees and other related charges: Plus Fashion— — — (0.1)Corporate0.4 13.2 0.4 21.7Total professional fees and other related charges0.4 13.2 0.4 21.6Total restructuring and other related charges$(0.5) $13.5$3.3 $21.4 (i) The charges incurred under the Company’s cost reduction initiatives are more fully described in Note 8.

[3] Severance and benefit costs reflect additional severance accruals associated with previously announced initiatives, as well as adjustments to true up estimates of previously accrued severance-related costs to reflect amounts actually paid.

[4] The charges incurred under the Company’s cost reduction initiatives are more fully described in Note 8.

[5] Other related charges in Fiscal 2019 consist of professional fees and other third-party costs incurred in connection with the Change for Growth program