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Investments And Restricted Investments Underlying Assets in Deferred Compensation Program (Details) (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2015
Feb. 01, 2014
Investment [Line Items]    
Underlying assets in non-qualified deferred compensation program $ 94,054us-gaap_DeferredCompensationPlanAssets $ 88,269us-gaap_DeferredCompensationPlanAssets
Level 1 [Member]    
Investment [Line Items]    
Underlying assets in non-qualified deferred compensation program 81,926us-gaap_DeferredCompensationPlanAssets
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member		 76,913us-gaap_DeferredCompensationPlanAssets
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel1Member
Level 2 [Member]    
Investment [Line Items]    
Underlying assets in non-qualified deferred compensation program $ 12,128us-gaap_DeferredCompensationPlanAssets
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member		 $ 11,356us-gaap_DeferredCompensationPlanAssets
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member