Fair Value Measurements Fair Value Measurements (Details 3) (USD $) In Millions, unless otherwise specified	3 Months Ended
May 04, 2013	Apr. 28, 2012
Asset Impairment Charge [Abstract]
Period of time new stores would need to be opened to be considered for impairment	1 year
Charges related to asset impairments	$ 1.0	$ 0.1

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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+ Details