Basis of Presentation (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended	12 Months Ended
Jul. 28, 2012	Jan. 28, 2012
Basis of Presentation [Abstract]
Company's fiscal period	53-week fiscal year	52-week fiscal year
Prior Period Reclassification Adjustment	$ 4.6

The amount of a reclassification adjustment made to prior period financial statement amounts.

No definition available.

Name:	us-gaap_PriorPeriodReclassificationAdjustment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration