Duration of a fiscal period, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but not limited to, weeks in a year or quarter.

No definition available.

Name:	us-gaap_FiscalPeriodDuration
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Summary of Significant Accounting Policies (Details)	12 Months Ended
Summary of Significant Accounting Policies (Details)	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Summary of Significant Accounting Policies
Length of fiscal year	364 days	364 days	371 days
Minimum
Summary of Significant Accounting Policies
Length of fiscal year	364 days
Maximum
Summary of Significant Accounting Policies
Length of fiscal year	371 days