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Financial Instruments and Fair Value Disclosure (Schedule Of Gains And Losses Of Financial Instruments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2021
Debt and Equity Securities, FV-NI [Line Items]
Changes in fair value included in other comprehensive income	$ 2,471	$ 1,464	$ (536)
Lennar Other
Debt and Equity Securities, FV-NI [Line Items]
Lennar Other unrealized gains (losses) from technology investments	(50,162)	(655,094)
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	(26,658)	(33,287)	(14,449)
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	1,016	43,695	(8,302)
Fair Value, Measurements, Recurring | Forward contracts | Financial Services
Debt and Equity Securities, FV-NI [Line Items]
Lennar Other unrealized gains (losses) from technology investments	(28,431)	(48,790)	11,513
Fair Value, Measurements, Recurring | Forward options | Financial Services
Debt and Equity Securities, FV-NI [Line Items]
Lennar Other unrealized gains (losses) from technology investments	(522)	(142)	0
Fair Value, Measurements, Recurring | Equity Securities | Lennar Other
Debt and Equity Securities, FV-NI [Line Items]
Lennar Other unrealized gains (losses) from technology investments	(50,162)	(655,094)	510,802
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	$ 2,471	$ 1,464	$ (536)

X

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Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-9

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 10A
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482790/220-10-45-10A

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 11
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482790/220-10-45-11

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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