Pro Forma Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	May 01, 2010 Rate	Jan. 29, 2011	Jan. 30, 2010 Rate
Pro forma Information [Abstract]
Pro Forma Tax Rate	40.90%		38.70%
Non-cash Deferred Tax Benefit		$ 31.8