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Homebuilding Senior Notes and Other Debts Payable (Letter of Credit Facilities) (Details) - USD ($) $ in Thousands	Aug. 31, 2025	Nov. 30, 2024
Performance letters of credit
Line of Credit Facility [Line Items]
Letters of credit	$ 1,889,234	$ 1,668,061
Financial letters of credit
Line of Credit Facility [Line Items]
Letters of credit	874,904	745,578
Surety bonds
Line of Credit Facility [Line Items]
Letters of credit	5,495,538	5,140,432
Anticipated future costs primarily for site improvements related to performance surety bonds
Line of Credit Facility [Line Items]
Letters of credit	$ 3,075,021	$ 2,766,088

X

- Definition

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

+ References

No definition available.

+ Details

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-6

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-6

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

+ Details

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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: