Financial Instruments and Fair Value Disclosure (Schedule Of Gains And Losses Of Financial Instruments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2022
Debt and Equity Securities, FV-NI [Line Items]
Changes in fair value included in other comprehensive income	$ 2,650	$ 2,471	$ 1,464
Lennar Other
Debt and Equity Securities, FV-NI [Line Items]
Lennar Other unrealized gains (losses) from technology investments	25,180	(50,162)
Fair Value, Measurements, Recurring | Loans held-for-sale | Financial Services
Debt and Equity Securities, FV-NI [Line Items]
Lennar Other unrealized gains (losses) from technology investments	(52,482)	(26,658)	(33,287)
Fair Value, Measurements, Recurring | Mortgage loan commitments | Financial Services
Debt and Equity Securities, FV-NI [Line Items]
Lennar Other unrealized gains (losses) from technology investments	(44,106)	1,016	43,695
Fair Value, Measurements, Recurring | Forward contracts | Financial Services
Debt and Equity Securities, FV-NI [Line Items]
Lennar Other unrealized gains (losses) from technology investments	61,372	(28,431)	(48,790)
Fair Value, Measurements, Recurring | Forward options | Financial Services
Debt and Equity Securities, FV-NI [Line Items]
Lennar Other unrealized gains (losses) from technology investments	(133)	(522)	(142)
Fair Value, Measurements, Recurring | Equity Securities | Lennar Other
Debt and Equity Securities, FV-NI [Line Items]
Lennar Other unrealized gains (losses) from technology investments	25,180	(50,162)	(655,094)
Fair Value, Measurements, Recurring | Lennar Other investments available-for-sale | Lennar Other
Debt and Equity Securities, FV-NI [Line Items]
Changes in fair value included in other comprehensive income	$ 2,650	$ 2,471	$ 1,464