Lennar Homebuilding Investments In Unconsolidated Entities (Narrative) (Details) $ in Thousands		1 Months Ended	12 Months Ended
	May 02, 2016 investment	May 31, 2017 USD ($)	Nov. 30, 2017 USD ($) homes investment		Nov. 30, 2016 USD ($)		Nov. 30, 2015 USD ($) homes
Schedule of Equity Method Investments [Line Items]
Lennar Homebuilding equity in earnings (loss) from unconsolidated entities			$ 49,478		$ 55,205		$ 105,184
Payments to Acquire Equity Method Investments			$ 430,304		425,761		314,937
FivePoint Unconsolidated Entity
Schedule of Equity Method Investments [Line Items]
Ownership percentage			40.00%
Investments in unconsolidated entities			$ 359,200
Payments to Acquire Equity Method Investments		$ 100,000
Lennar Homebuilding
Schedule of Equity Method Investments [Line Items]
Lennar Homebuilding equity in earnings (loss) from unconsolidated entities			(61,708)		(49,275)		63,373
Investments in unconsolidated entities			900,769	[1]	811,723	[1]	741,551
Underlying equity in unconsolidated partners' net assets			1,300,000		1,200,000
Sale of homesites			226,200		130,400		177,600
Non-recourse land seller debt and other debt			1,997		323,995
Lennar Homebuilding | Unconsolidated Entities
Schedule of Equity Method Investments [Line Items]
Management fees and reimbursement of expenses			4,400		13,200		31,300
Lennar Homebuilding | Equity Method Investment One
Schedule of Equity Method Investments [Line Items]
Deferred Income (Loss) from Equity Method Investments			4,900
Sale of homesites			$ 11,900
Lennar Homebuilding | FivePoint Unconsolidated Entity
Schedule of Equity Method Investments [Line Items]
Lennar Homebuilding equity in earnings (loss) from unconsolidated entities					42,600
Lennar Homebuilding | Unconsolidated Entity
Schedule of Equity Method Investments [Line Items]
Lennar Homebuilding equity in earnings (loss) from unconsolidated entities					12,700		$ 82,800
Non-recourse land seller debt and other debt					$ 320,000
Lennar Homebuilding | Joint Ventures Previously Managed by FivePoint Communities
Schedule of Equity Method Investments [Line Items]
Equity Method Investment, Measurement Period	1 year
Strategic joint ventures contributed | investment	3		3
Lennar Homebuilding | Joint Venture
Schedule of Equity Method Investments [Line Items]
Ownership percentage							50.00%
Lennar Homebuilding | Joint Venture | Unconsolidated Entity
Schedule of Equity Method Investments [Line Items]
Number of homesites sold | homes							800
Gross profit on sale of homesites							$ 157,400
Sale of homesites							$ 472,000
Lennar Homebuilding | Third Party | Unconsolidated Entity
Schedule of Equity Method Investments [Line Items]
Number of homesites sold | homes							700
Lennar Homebuilding | Lennar | Unconsolidated Entity
Schedule of Equity Method Investments [Line Items]
Number of homesites sold | homes							300
Gross profit on sale of homesites							$ 49,300
Variable Interest Entity, Not Primary Beneficiary | Lennar Homebuilding | Equity Method Investment One
Schedule of Equity Method Investments [Line Items]
Number of properties sold | homes			475
Held-for-sale | Lennar Homebuilding
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities			$ 33,300

[1] Under certain provisions of Accounting Standards Codification ("ASC") Topic 810, Consolidations, ("ASC 810") the Company is required to separately disclose on its consolidated balance sheets the assets of consolidated variable interest entities ("VIEs") that are owned by the consolidated VIEs and liabilities of consolidated VIEs as to which there is no recourse against the Company.As of November 30, 2017, total assets include $799.4 million related to consolidated VIEs of which $15.8 million is included in Lennar Homebuilding cash and cash equivalents, $0.2 million in Lennar Homebuilding receivables, net, $53.2 million in Lennar Homebuilding finished homes and construction in progress, $229.0 million in Lennar Homebuilding land and land under development, $393.3 million in Lennar Homebuilding consolidated inventory not owned, $4.6 million in Lennar Homebuilding investments in unconsolidated entities, $11.8 million in Lennar Homebuilding other assets, $48.8 million in Rialto assets and $42.7 million in Lennar Multifamily assets.As of November 30, 2016, total assets include $536.3 million related to consolidated VIEs of which $13.3 million is included in Lennar Homebuilding cash and cash equivalents, $0.2 million in Lennar Homebuilding receivables, net, $54.2 million in Lennar Homebuilding finished homes and construction in progress, $106.3 million in Lennar Homebuilding land and land under development, $121.0 million in Lennar Homebuilding consolidated inventory not owned, $4.6 million in Lennar Homebuilding investments in unconsolidated entities, $13.9 million in Lennar Homebuilding other assets, $213.8 million in Rialto assets and $8.8 million in Lennar Multifamily assets.