Investments in Unconsolidated Entities (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
		May 31, 2024	May 31, 2024	Nov. 30, 2023
Upward America Venture
Schedule of Equity Method Investments [Line Items]
Total equity commitments		$ 1,000,000	$ 1,000,000
Upward America Venture
Schedule of Equity Method Investments [Line Items]
Total equity commitments		78,000	78,000
Lennar's carrying value of investments		16,400	16,400	$ 14,800
Homebuilding
Schedule of Equity Method Investments [Line Items]
Non-recourse debt with completion guarantees		279,300	279,300	316,500
Lennar's carrying value of investments	[1]	1,263,905	1,263,905	1,143,909
Multifamily
Schedule of Equity Method Investments [Line Items]
Non-recourse debt with completion guarantees		834,200	834,200	1,400,000
Multifamily | Lennar Multifamily Fund
Schedule of Equity Method Investments [Line Items]
Total equity commitments		$ 1,000,000	$ 1,000,000
Fund ownership percentage		4.00%	4.00%
Lennar's carrying value of investments		$ 24,600	$ 24,600
Multifamily | LMV I
Schedule of Equity Method Investments [Line Items]
Total equity commitments		2,204,016	2,204,016
Lennar's carrying value of investments		162,904	162,904
Lennar Other | Rialto Funds and Investment Vehicles
Schedule of Equity Method Investments [Line Items]
Lennar's carrying value of investments		146,900	146,900	148,700
Gain on sales of investment		46,500	46,500
Lennar Other | Strategic Technology Investments
Schedule of Equity Method Investments [Line Items]
Lennar's carrying value of investments		$ 203,700	$ 203,700	$ 127,500

[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, nor any of its subsidiaries, has any obligations. As of May 31, 2024, total assets include $3.0 billion related to consolidated VIEs of which $73.0 million is included in Homebuilding cash and cash equivalents, $5.9 million in Homebuilding receivables, net, $6.2 million in Homebuilding finished homes and construction in progress, $601.1 million in Homebuilding land and land under development, $75.5 million in Homebuilding deposits and pre-acquisition costs on real estate, $2.2 billion in Homebuilding consolidated inventory not owned, $0.3 million in Homebuilding investments in unconsolidated entities, $22.5 million in Homebuilding other assets and $33.6 million in Multifamily assets. As of November 30, 2023, total assets include $1.9 billion related to consolidated VIEs of which $22.8 million is included in Homebuilding cash and cash equivalents, $1.8 million in Homebuilding receivables, net, $18.3 million in Homebuilding finished homes and construction in progress, $628.0 million in Homebuilding land and land under development, $55.0 million in Homebuilding deposits and pre-acquisition costs on real estate, $1.2 billion in Homebuilding consolidated inventory not owned, $0.3 million in Homebuilding investments in unconsolidated entities, $23.0 million in Homebuilding other assets and $32.6 million in Multifamily assets.