Basis of Presentation and Summary of Significant Accounting Policies (Details) $ in Millions	3 Months Ended		12 Months Ended
	Apr. 29, 2017 USD ($) store	Apr. 30, 2016 USD ($)	Feb. 03, 2018	Jan. 28, 2017 USD ($)
Components of Operating Cost and Expense [Abstract]
Number of Stores | store	1,434
Number of States in which Entity Operates	47
Operating Cycle	52 or 53 weeks
Fiscal Period Duration	91 days	91 days	371 days	364 days
Distribution and Outbound Transportation Costs	$ 39.3	$ 37.7
Advertising Expense	19.9	$ 20.1
AccountingStandardsUpdate201609 [Member]
Item Effected [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 3.1			$ 0.5