Investments in Unconsolidated Entities (Details of Multifamily Unconsolidated Entities) (Details) - USD ($) $ in Thousands	9 Months Ended
	Aug. 31, 2025	Aug. 31, 2024
Schedule of Equity Method Investments [Line Items]
Distributions of earnings from unconsolidated entities	$ 28,266	$ 34,108
Multifamily | LMV I
Schedule of Equity Method Investments [Line Items]
Lennar's carrying value of investments	107,907
Equity commitments	2,204,016
Equity commitments called	2,154,328
Lennar's equity commitments	504,016
Lennar's equity commitments called	500,381
Lennar's remaining commitments (1)	3,635
Distributions of earnings from unconsolidated entities	19,690
Multifamily | LMV II
Schedule of Equity Method Investments [Line Items]
Lennar's carrying value of investments	215,927
Equity commitments	1,257,700
Equity commitments called	1,229,585
Lennar's equity commitments	381,000
Lennar's equity commitments called	371,492
Lennar's remaining commitments (1)	9,508
Distributions of earnings from unconsolidated entities	$ 770