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Income Taxes (Details) (USD $)
In Millions, unless otherwise specified
May 01, 2015
May 02, 2014
Apr. 04, 2014
Income Tax Examination [Line Items]      
Unrecognized tax benefits $ 9.0us-gaap_UnrecognizedTaxBenefits   $ 8.7us-gaap_UnrecognizedTaxBenefits
Unrecognized tax benefits, if recognized, would impact effective tax rate 5.8us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate    
Amount of interest and penalties recognized 5.7us-gaap_IncomeTaxExaminationPenaltiesAndInterestAccrued    
Amount of interest and penalties recognized, net of federal benefit 3.7le_IncomeTaxExaminationPenaltiesandInterestAccruedNetofTaxBenefit    
Other liabilities      
Income Tax Examination [Line Items]      
Tax reserve for uncertain tax position 13.7us-gaap_LiabilityForUncertainTaxPositionsNoncurrent
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherNoncurrentLiabilitiesMember
   
Sears Holdings Corporation | Deferred tax liabilities      
Income Tax Examination [Line Items]      
Deferred tax assets 30.4us-gaap_DeferredTaxAssetsGross
/ us-gaap_BalanceSheetLocationAxis
= le_DeferredTaxLiabilitiesMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= le_FormerParentMember
   
Sears Holdings Corporation | Other assets      
Income Tax Examination [Line Items]      
Indemnification receivable, uncertain tax positions $ 14.5le_IndemnificationAssetUncertainTaxPositions
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherNoncurrentAssetsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= le_FormerParentMember
$ 13.7le_IndemnificationAssetUncertainTaxPositions
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherNoncurrentAssetsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= le_FormerParentMember
$ 13.7le_IndemnificationAssetUncertainTaxPositions
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherNoncurrentAssetsMember
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= le_FormerParentMember