Basis of Presentation and Summary of Significant Accounting Policies (Details) $ in Millions	3 Months Ended			9 Months Ended		12 Months Ended
	Oct. 28, 2017 USD ($)	Apr. 29, 2017 USD ($)	Oct. 29, 2016 USD ($)	Oct. 28, 2017 USD ($)	Oct. 29, 2016 USD ($)	Jan. 28, 2017 USD ($)
Component of Operating Other Cost and Expense [Line Items]
Number of Stores	1,426			1,426
Number of States in which Entity Operates	47			47
Operating Cycle				52 or 53 weeks
Fiscal Period				P53W	P52W
Current Quarter Period	P13W		P13W
Current Quarter Year To Date Period				P39W	P39W
Distribution and Outbound Transportation Costs	$ 39.4		$ 38.2	$ 115.6	$ 111.3
Advertising Expense	$ 15.3		$ 15.6	$ 51.1	$ 52.3
Accounting Standards Update 2016-09 [Member]
Item Effected [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification		$ 3.1				$ 0.5