Investments In Unconsolidated Entities (Narrative) (Details) $ in Thousands		3 Months Ended	12 Months Ended
		Feb. 28, 2022 USD ($)	Nov. 30, 2022 USD ($) property	Nov. 30, 2021 USD ($)
Upward America Venture
Schedule of Equity Method Investments [Line Items]
Equity Method Investment , Total Equity Commitments			$ 125,000
Number of Homes Delivered | property			2,418
Investments in unconsolidated entities			$ 37,700	$ 13,300
Homebuilding
Schedule of Equity Method Investments [Line Items]
Debt			1,400,000	1,200,000
Maximum recourse exposure			9,100	5,300
Unconsolidated entities non-recourse debt with completion guarantees			333,600	241,000
Investments in unconsolidated entities	[1]		1,173,164	972,084
Homebuilding | FivePoint Unconsolidated Entity
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities			382,900	381,600
Multifamily
Schedule of Equity Method Investments [Line Items]
Unconsolidated entities non-recourse debt with completion guarantees			1,000,000	855,200
Multifamily | Lennar Multifamily Fund
Schedule of Equity Method Investments [Line Items]
Equity Method Investment , Total Equity Commitments			1,000,000
Investments in unconsolidated entities			$ 26,000
Fund Investment, Ownership Percentage			4.00%
Lennar Other | Rialto Funds and Investment Vehicles
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities			$ 185,100	200,600
Lennar Other | Strategic Technology Investments
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated entities			131,500	$ 145,600
Upward America Venture
Schedule of Equity Method Investments [Line Items]
Equity Method Investment , Total Equity Commitments			$ 1,600,000
Equity Method Investment, Equity Commitments Raised During Period		$ 350,000

[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, 2022, total assets include $1.4 billion related to consolidated VIEs of which $56.9 million is included in Homebuilding cash and cash equivalents, $0.3 million in Homebuilding receivables, net, $29.4 million in Homebuilding finished homes and construction in progress, $736.5 million in Homebuilding land and land under development, $533.8 million in Homebuilding consolidated inventory not owned, $1.0 million in Homebuilding investments in unconsolidated entities, $23.0 million in Homebuilding other assets, $33.2 million in Multifamily assets and $9.0 million in Lennar Other assets. As of November 30, 2021, total assets include $1.1 billion related to consolidated VIEs of which $60.9 million is included in Homebuilding cash and cash equivalents, $4.4 million in Homebuilding receivables, net, $14.3 million in Homebuilding finished homes and construction in progress, $697.1 million in Homebuilding land and land under development, $239.2 million in Homebuilding consolidated inventory not owned, $1.1 million in Homebuilding investments in unconsolidated entities, $17.4 million in Homebuilding other assets and $80.6 million in Multifamily assets.