Basis of Presentation and Summary of Significant Accounting Policies (Details) $ in Millions	12 Months Ended
	Feb. 01, 2020 USD ($) ReportableSegment	Feb. 02, 2019 USD ($) ReportableSegment	Feb. 03, 2018 USD ($) ReportableSegment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of weeks in fiscal period	52 weeks	52 weeks	53 weeks
Cash and Cash Equivalents / Cash Management
Cash equivalents		$ 33.8
Checks drawn in excess of cash balances not yet presented for payment	$ 54.0	36.4
Accounts Receivable
Allowance for doubtful acccounts	3.0	3.0
Inventories
Inventory valuation and vendor allowances	131.7	113.3
Advertising Costs
Advertising expense net of cooperative advertising	$ 338.7	$ 322.2	$ 330.1
Operating Segment Information
Number of reportable segments | ReportableSegment	1	1	1