Investments in Unconsolidated Entities (Narrative) (Details) $ in Thousands		3 Months Ended
		Feb. 29, 2020 USD ($) investment	Feb. 28, 2019 USD ($)	Nov. 30, 2019 USD ($)
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities		$ 1,942,541		$ 1,973,913
Revenues		4,505,337	$ 3,868,082
FivePoint Unconsolidated Entity
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities		$ 366,800		374,000
Unconsolidated entities ownership percentage		40.00%
Homebuilding
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities	[1]	$ 946,716		1,009,035
Underlying equity in unconsolidated partners' net assets		1,300,000
Debt of unconsolidated entities		1,100,000		1,100,000
Maximum recourse exposure		4,900		10,800
Revenues		$ 4,172,116	3,623,721
Homebuilding | Joint Ventures Previously Managed by FivePoint Communities
Schedule of Equity Method Investments [Line Items]
Number of investments in joint ventures contributed | investment		3
Multifamily
Schedule of Equity Method Investments [Line Items]
Non-recourse debt with completion guarantees		$ 979,500		867,300
Revenues		132,617	97,394
Financial letters of credit
Schedule of Equity Method Investments [Line Items]
Letters of credit outstanding		208,871		$ 184,075
General Contractor Services | Multifamily
Schedule of Equity Method Investments [Line Items]
Revenues		93,900	82,400
Cost of revenue		90,200	79,400
Unconsolidated Entities | Management Fee | Multifamily
Schedule of Equity Method Investments [Line Items]
Revenues		$ 13,800	$ 13,100

[1] Under certain provisions of Accounting Standards Codification ("ASC") Topic 810, Consolidations, ("ASC 810") the Company is required to separately disclose on its condensed consolidated balance sheets the assets owned by consolidated variable interest entities ("VIEs") and liabilities of consolidated VIEs as to which neither Lennar Corporation, or any of its subsidiaries, has any obligations. As of February 29, 2020, total assets include $1.2 billion related to consolidated VIEs of which $12.9 million is included in Homebuilding cash and cash equivalents, $0.1 million in Homebuilding receivables, net, $104.4 million in Homebuilding finished homes and construction in progress, $292.5 million in Homebuilding land and land under development, $406.1 million in Homebuilding consolidated inventory not owned, $2.7 million in Homebuilding investments in unconsolidated entities, $7.3 million in Homebuilding other assets, $259.9 million in Financial Services assets and $74.2 million in Multifamily assets. As of November 30, 2019, total assets include $980.2 million related to consolidated VIEs of which $15.5 million is included in Homebuilding cash and cash equivalents, $0.2 million in Homebuilding receivables, net, $97.5 million in Homebuilding finished homes and construction in progress, $283.2 million in Homebuilding land and land under development, $301.0 million in Homebuilding consolidated inventory not owned, $2.5 million in Homebuilding investments in unconsolidated entities, $10.0 million in Homebuilding other assets, $221.2 million in Financial Services assets and $49.1 million in Multifamily assets.