Lennar Multifamily (Narrative) (Details) (Lennar Multifamily [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
Feb. 28, 2015	Feb. 28, 2014	Nov. 30, 2014
Segment Reporting Information [Line Items]
Non-recourse debt with completion guarantees	$ 244,026		$ 163,376
General Contractor Revenue	31,935us-gaap_GeneralContractorRevenue	6,151us-gaap_GeneralContractorRevenue
General Contractor Costs	31,329us-gaap_GeneralContractorCosts	6,015us-gaap_GeneralContractorCosts
Financial Letters of Credit [Member]
Segment Reporting Information [Line Items]
Letters of credit outstanding, amount	$ 22,171		$ 23,498

Unconsolidated entities non-recourse debt subject to completion guarantees.

No definition available.

Name:	len_NonRecourseDebtWithCompletionGuarantees
Namespace Prefix:	len_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The aggregate costs related to general contracting services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.2)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

Name:	us-gaap_GeneralContractorCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate revenue from general contracting services, which may include directly performed or subcontracted plumbing, electrical work, drywall and plaster installation, steel erection, painting, glass work, utility line construction, and other specialty trade services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(e))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

+ Details

Name:	us-gaap_GeneralContractorRevenue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- 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

- Details

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

- Details

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