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Homebuilding Senior Notes and Other Debts Payable (Letter of Credit Facilities) (Details) - USD ($) $ in Thousands	Aug. 31, 2022	Nov. 30, 2021
Performance letters of credit
Line of Credit Facility [Line Items]
Letters of credit	$ 1,148,595	$ 924,584
Financial letters of credit
Line of Credit Facility [Line Items]
Letters of credit	547,210	425,843
Surety bonds
Line of Credit Facility [Line Items]
Letters of credit	3,894,416	3,553,047
Anticipated future costs primarily for site improvements related to performance surety bonds
Line of Credit Facility [Line Items]
Letters of credit	$ 2,023,081	$ 1,690,861

X

- 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

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

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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