Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2021	Aug. 01, 2020	Jul. 31, 2021	Aug. 01, 2020
Income Statement [Abstract]
Net sales	$ 496.9	$ 708.0	$ 1,071.3	$ 1,207.4
Cost of sales	230.1	356.6	501.8	610.2
Selling, general and administrative expenses	247.0	283.6	496.9	525.7
Depreciation and amortization	20.1	19.7	40.5	39.5
Operating (loss) profit	(0.3)	48.1	32.1	32.0
Interest expense, net	14.8	18.3	28.0	41.0
Debt related loss (gain)	3.1	(146.8)	3.0	(149.9)
Gain on sale leaseback	(24.5)		(24.5)
Income before income taxes	6.3	176.6	25.6	140.9
Income tax provision	1.1	26.7	5.3	14.6
Net income	5.2	149.9	20.3	126.3
Other comprehensive income:
Cash flow hedges	0.2	0.2	0.4	0.4
Income tax provision on cash flow hedges			(0.1)	(0.1)
Other comprehensive income	0.2	0.2	0.3	0.3
Comprehensive income	$ 5.4	$ 150.1	$ 20.6	$ 126.6
Earnings per common share:
Basic	$ 0.12	$ 4.29	$ 0.50	$ 3.62
Diluted	$ 0.12	$ 4.17	$ 0.49	$ 3.56
Weighted-average common shares outstanding:
Basic	42,159,899	34,902,380	40,272,308	34,902,380
Diluted	43,661,417	35,908,553	41,685,944	35,496,262