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Long-term Debt Long-term debt (Revolving Facility and Letters of Credit (Narrative) (Details) (USD $)
12 Months Ended 3 Months Ended
Jan. 31, 2015
Feb. 01, 2014
Feb. 02, 2013
Nov. 01, 2014
Aug. 02, 2014
Line of Credit Facility [Line Items]          
Borrowings from Revolving Facility $ 5,000,000us-gaap_ProceedsFromLongTermLinesOfCredit $ 290,000,000us-gaap_ProceedsFromLongTermLinesOfCredit $ 0us-gaap_ProceedsFromLongTermLinesOfCredit    
Repayments on Revolving Facility (5,000,000)us-gaap_RepaymentsOfLongTermLinesOfCredit (290,000,000)us-gaap_RepaymentsOfLongTermLinesOfCredit 0us-gaap_RepaymentsOfLongTermLinesOfCredit    
Revolving Credit Facility [Member]          
Line of Credit Facility [Line Items]          
Line of Credit Facility, Amount Outstanding 0us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
       
Revolving Credit Facility [Member] | Revolving Credit Expiring July 2016 [Member]          
Line of Credit Facility [Line Items]          
Line of Credit Facility, Maximum Borrowing Capacity 1,000,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= lb_RevolvingCreditExpiringJuly2016Member
       
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.30%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= lb_RevolvingCreditExpiringJuly2016Member
       
Debt Instrument, Basis Spread on Variable Rate 1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= lb_RevolvingCreditExpiringJuly2016Member
       
Line of Credit Financial Covenant, Fixed Charge Coverage Ratio 1.75lb_LineOfCreditFinancialCovenantFixedChargeCoverageRatio
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= lb_RevolvingCreditExpiringJuly2016Member
       
Line of Credit Financial Covenant, Ratio of Consolidated Debt to Consolidated EBITDA 4.00lb_LineOfCreditFinancialCovenantRatioOfConsolidatedDebtToConsolidatedEbitda
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= lb_RevolvingCreditExpiringJuly2016Member
       
Debt to EBITDA ratio required for unlimited investments and restricted payments 3.00lb_DebtToEbitdaRatioRequiredForUnlimitedInvestmentsAndRestrictedPayments
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= lb_RevolvingCreditExpiringJuly2016Member
       
Line of Credit Financial Covenant Ratio of Consolidated Debt to Consolidated EBITDA Maximum Current Rate 3.00lb_LineOfCreditFinancialCovenantRatioOfConsolidatedDebtToConsolidatedEbitdaMaximumCurrentRate
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= lb_RevolvingCreditExpiringJuly2016Member
       
Borrowings from Revolving Facility       290,000,000us-gaap_ProceedsFromLongTermLinesOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= lb_RevolvingCreditExpiringJuly2016Member
 
Repayments on Revolving Facility       (290,000,000)us-gaap_RepaymentsOfLongTermLinesOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= lb_RevolvingCreditExpiringJuly2016Member
(5,000,000)us-gaap_RepaymentsOfLongTermLinesOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= lb_RevolvingCreditExpiringJuly2016Member
Line of Credit Facility, Maximum Amount Outstanding During Period       140,000,000us-gaap_LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= lb_RevolvingCreditExpiringJuly2016Member
 
Revolving Credit Facility [Member] | Revolving Credit Expiring July 2019 [Member]          
Line of Credit Facility [Line Items]          
Debt Instrument, Basis Spread on Variable Rate 1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= lb_RevolvingCreditExpiringJuly2019Member
       
Borrowings from Revolving Facility         5,000,000us-gaap_ProceedsFromLongTermLinesOfCredit
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= lb_RevolvingCreditExpiringJuly2019Member
Line of Credit Facility, Maximum Amount Outstanding During Period         5,000,000us-gaap_LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= lb_RevolvingCreditExpiringJuly2019Member
Revolving Credit Facility [Member] | Amendment [Member]          
Line of Credit Facility [Line Items]          
Payments of Debt Restructuring Costs 5,000,000us-gaap_PaymentsOfDebtRestructuringCosts
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= lb_AmendmentMember
       
Letter of Credit [Member]          
Line of Credit Facility [Line Items]          
Line of Credit Facility, Amount Outstanding $ 19,000,000us-gaap_LineOfCredit
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LetterOfCreditMember
       
Letter of Credit [Member] | Revolving Credit Facility [Member] | Revolving Credit Expiring July 2016 [Member]          
Line of Credit Facility [Line Items]          
Line of Credit Facility, Commitment Fee Percentage 1.50%us-gaap_LineOfCreditFacilityCommitmentFeePercentage
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_DebtInstrumentAxis
= lb_RevolvingCreditExpiringJuly2016Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LetterOfCreditMember