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Fair Value Measurements (Details) (Fair Value, Measurements, Recurring [Member], Level 1 [Member], USD $)
In Millions, unless otherwise specified
May 04, 2013
Feb. 02, 2013
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
   
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Trading Securities, Fair Value Disclosure $ 21.9 $ 20.7