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Summary of Significant Accounting Policies - Gift Card Reconciliation (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 29, 2021 | Jan. 31, 2020
Gift Card Reconciliation [Abstract] |  |
Gift card liability at beginning of period | $ 22,592 | $ 18,191
Gift cards sold | 52,315 | 65,662
Gift cards redeemed | (47,061) | (60,043)
Gift card breakage | (1,048) | (1,218)
Balance as of end of period | $ 26,798 | $ 22,592

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- Definition Contract with customer liabilities accrued for unredeeemed gift cards. + References No definition available. + Details
Name: | le_ContractWithCustomerLiabilitiesAccruedForUnredeeemedGiftCards
Namespace Prefix: | le_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Contract with customer liabilities gift cards breakage. + References No definition available. + Details
Name: | le_ContractWithCustomerLiabilitiesGiftCardsBreakage
Namespace Prefix: | le_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Contract with customer liabilities gift cards redeemed. + References No definition available. + Details
Name: | le_ContractWithCustomerLiabilitiesGiftCardsRedeemed
Namespace Prefix: | le_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Contract with customer liabilities gift cards sold. + References No definition available. + Details
Name: | le_ContractWithCustomerLiabilitiesGiftCardsSold
Namespace Prefix: | le_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Gift Card Reconciliation [Abstract] + References No definition available. + Details
Name: | le_GiftCardReconciliationAbstract
Namespace Prefix: | le_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration