Organization and Basis of Presentation (Fiscal Year) (Details)	12 Months Ended
	Jan. 27, 2013	Jan. 29, 2012	Jan. 30, 2011	Jan. 31, 2010
Fiscal Year [Line Items]
Number of weeks in reporting period	52	52	52	53
Minimum
Fiscal Year [Line Items]
Number of weeks in reporting period	52
Maximum
Fiscal Year [Line Items]
Number of weeks in reporting period	53