Cash provision availability, line of credit outstanding trigger.

No definition available.

Name:	le_CashProvisionAvailabilityLineOfCreditOutstandingTrigger
Namespace Prefix:	le_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Cash provision for line of credit.

+ References

No definition available.

+ Details

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

- Definition

Debt instrument basis spread on variable rate five.

+ References

No definition available.

+ Details

Name:	le_DebtInstrumentBasisSpreadOnVariableRateFive
Namespace Prefix:	le_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instrument basis spread on variable rate four.

+ References

No definition available.

+ Details

Name:	le_DebtInstrumentBasisSpreadOnVariableRateFour
Namespace Prefix:	le_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instrument basis spread on variable rate three

+ References

No definition available.

+ Details

Name:	le_DebtInstrumentBasisSpreadOnVariableRateThree
Namespace Prefix:	le_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instrument basis spread on variable rate two.

+ References

No definition available.

+ Details

Name:	le_DebtInstrumentBasisSpreadOnVariableRateTwo
Namespace Prefix:	le_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instrument federal funds rate.

+ References

No definition available.

+ Details

Name:	le_DebtInstrumentFederalFundsRate
Namespace Prefix:	le_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt instrument, reference rate, minimum.

+ References

No definition available.

+ Details

Name:	le_DebtInstrumentReferenceRateMinimum
Namespace Prefix:	le_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Letter of Credit Limit

+ References

No definition available.

+ Details

Name:	le_LetterOfCreditLimit
Namespace Prefix:	le_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of credit facility increase in maximum borrowing capacity.

+ References

No definition available.

+ Details

Name:	le_LineOfCreditFacilityIncreaseInMaximumBorrowingCapacity
Namespace Prefix:	le_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of Credit Facility, Covenant Terms, Minimum Fixed Charge Coverage Ratio

+ References

No definition available.

+ Details

Name:	le_LineofCreditFacilityCovenantTermsMinimumFixedChargeCoverageRatio
Namespace Prefix:	le_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Line of Credit Facility, Covenant Terms, Minimum Percentage of Loan Cap Amount

+ References

No definition available.

+ Details

Name:	le_LineofCreditFacilityCovenantTermsMinimumPercentageofLoanCapAmount
Namespace Prefix:	le_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line of Credit Facility, Covenant Terms, Minimum Remaining Borrowing Capacity

+ References

No definition available.

+ Details

Name:	le_LineofCreditFacilityCovenantTermsMinimumRemainingBorrowingCapacity
Namespace Prefix:	le_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage of Borrower's excess cash flows required to be paid in certain debt covenant triggers are met.

+ References

No definition available.

+ Details

Name:	le_LineofCreditFacilityMandatoryPrepaymentTermsPercentageofBorrowersExcessCashFlow
Namespace Prefix:	le_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of original issue discount.

+ References

No definition available.

+ Details

Name:	le_PercentageOfOriginalIssueDiscount
Namespace Prefix:	le_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Secured Debt, Amortization Rate

+ References

No definition available.

+ Details

Name:	le_SecuredDebtAmortizationRate
Namespace Prefix:	le_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

+ Details

Name:	us-gaap_DebtInstrumentMaturityDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before accumulated amortization, of debt issuance costs related to line of credit arrangements. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section S45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=68176171&loc=SL68176184-208336

+ Details

Name:	us-gaap_DebtIssuanceCostsLineOfCreditArrangementsGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

Name:	us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

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-Name Accounting Standards Codification
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_SecuredDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_DebtInstrumentAxis=le_ABLFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
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Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=le_CurrentTermLoanFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=le_FortressCreditCorpMember
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Period Type:

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- Details

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Period Type:

- Details

Name:	us-gaap_VariableRateAxis=le_FederalFundsRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=le_OneMonthLondonInterbankOfferedRateLIBORMember
Namespace Prefix:
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Debt - Additional Information (Details)			12 Months Ended
Debt - Additional Information (Details)	Sep. 09, 2020 USD ($)	Aug. 12, 2020	Jan. 29, 2021 USD ($)	Mar. 19, 2020 USD ($)	Jan. 31, 2020 USD ($)	Jan. 30, 2020 USD ($)	Nov. 16, 2017 USD ($)
ABL Facility
Line Of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity			$ 275,000,000		$ 175,000,000		$ 175,000,000
Line of credit facility, increase in maximum borrowing capacity	$ 75,000,000			$ 25,000,000
Letter of credit limit			$ 70,000,000.0
Debt instrument, maturity date			Nov. 16, 2022
Line of credit	125,000,000		$ 25,000,000		0
Letter of credit outstanding amount			$ 27,131,000		$ 23,299,000	$ 23,300,000
ABL Facility \| Secured Debt
Line Of Credit Facility [Line Items]
Line of credit facility, covenant terms, minimum percentage of loan cap amount			10.00%
Line of credit facility, covenant terms, minimum excess credit availability			$ 15,000,000.0
Line of credit facility, covenant terms, minimum fixed charge coverage ratio			1.0
Trigger amount of borrowings to use cash provision			$ 125,000,000
ABL Facility \| Secured Debt \| Minimum
Line Of Credit Facility [Line Items]
Line of credit facility, unused commitment fee percentage		0.25%
ABL Facility \| Secured Debt \| Maximum
Line Of Credit Facility [Line Items]
Line of credit facility, unused commitment fee percentage		0.375%
Cash provision for credit facility			75,000,000
ABL Facility \| LIBOR \| Secured Debt
Line Of Credit Facility [Line Items]
Variable rate spread on outstanding loans less than $50 million		1.75%
Variable rate spread on outstanding loans equal to or greater than $50 million but less than $100 million		2.00%
Variable rate spread on outstanding loans equal to or greater than $100 million but less than $200 million		2.25%
Variable rate spread on outstanding loans greater than $200 million		3.50%
ABL Facility \| LIBOR \| Secured Debt \| Minimum
Line Of Credit Facility [Line Items]
Spread on variable rate		0.75%
ABL Facility \| Base Rate \| Secured Debt
Line Of Credit Facility [Line Items]
Variable rate spread on outstanding loans less than $50 million		1.00%
Variable rate spread on outstanding loans equal to or greater than $50 million but less than $100 million		1.25%
Variable rate spread on outstanding loans equal to or greater than $100 million but less than $200 million		1.50%
Variable rate spread on outstanding loans greater than $200 million		2.75%
Current Term Loan Facility
Line Of Credit Facility [Line Items]
Secured debt	275,000,000		$ 271,563,000
Debt origination fees	$ 5,000,000.0
Percentage of original issue discount	3.00%
Current Term Loan Facility \| Fortress Credit Corp
Line Of Credit Facility [Line Items]
Line of credit facility, amortization rate	1.25%
Current Term Loan Facility \| Secured Debt \| Minimum
Line Of Credit Facility [Line Items]
Federal funds rate	0.00%
Current Term Loan Facility \| Secured Debt \| Minimum \| Fortress Credit Corp
Line Of Credit Facility [Line Items]
Mandatory prepayment terms, amount equal to borrowers' excess cash flows, percentage	0.00%
Current Term Loan Facility \| Secured Debt \| Maximum \| Fortress Credit Corp
Line Of Credit Facility [Line Items]
Mandatory prepayment terms, amount equal to borrowers' excess cash flows, percentage	75.00%
Current Term Loan Facility \| Adjusted LIBOR \| Secured Debt
Line Of Credit Facility [Line Items]
Minimum LIBOR rate	1.00%
Spread on variable rate	9.75%
Current Term Loan Facility \| Alternate Base Rate \| Secured Debt
Line Of Credit Facility [Line Items]
Spread on variable rate	8.75%
Current Term Loan Facility \| Federal Funds Rate \| Secured Debt
Line Of Credit Facility [Line Items]
Spread on variable rate	0.50%
Current Term Loan Facility \| One Month LIBOR \| Secured Debt
Line Of Credit Facility [Line Items]
Spread on variable rate	1.00%