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Related Party Agreements and Transactions - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Nov. 02, 2018	Jan. 31, 2020	Feb. 01, 2019	Apr. 04, 2014
Related Party Transaction [Line Items]
Indemnification receivable		$ 0.0	$ 0.0	$ 13.7
Sears Holdings Corporation | Other Expense, Net
Related Party Transaction [Line Items]
Indemnification Reserve Expense	$ 2.6

X

- Definition

Indemnification Receivable

+ References

No definition available.

+ Details

Name:	le_IndemnificationReceivable
Namespace Prefix:	le_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Indemnification Reserve Expense

+ References

No definition available.

+ Details

Name:	le_IndemnificationReserveExpense
Namespace Prefix:	le_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=le_FormerParentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_IncomeStatementLocationAxis=us-gaap_OtherExpenseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: