Summary of Significant Accounting Policies (Store Pre-Opening Costs) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Accounting Policies [Abstract]
Pre-opening costs	$ 4.6us-gaap_PreOpeningCosts	$ 4.3us-gaap_PreOpeningCosts	$ 3.5us-gaap_PreOpeningCosts

Expenditures associated with opening new locations which are noncapital in nature and expensed as incurred.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.3)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

Name:	us-gaap_PreOpeningCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration