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Operating and Reporting Segments - Unrealized Gain (Loss) on Investments (Details) - Lennar Other - Operating Segments - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2023	Aug. 31, 2022	Aug. 31, 2023	Aug. 31, 2022
Segment Reporting Information [Line Items]
Lennar Other unrealized losses from technology investments	$ (15,713)	$ (85,839)	$ (14,170)	$ (558,974)
Blend Labs
Segment Reporting Information [Line Items]
Lennar Other unrealized losses from technology investments	386	(518)	(360)	(21,510)
Hippo
Segment Reporting Information [Line Items]
Lennar Other unrealized losses from technology investments	(17,166)	(32,933)	(14,933)	(195,336)
Opendoor
Segment Reporting Information [Line Items]
Lennar Other unrealized losses from technology investments	23,638	(54,391)	38,459	(218,751)
SmartRent
Segment Reporting Information [Line Items]
Lennar Other unrealized losses from technology investments	(1,707)	(23,118)	8,219	(71,431)
Sonder
Segment Reporting Information [Line Items]
Lennar Other unrealized losses from technology investments	(91)	(168)	(549)	(2,300)
Sunnova
Segment Reporting Information [Line Items]
Lennar Other unrealized losses from technology investments	$ (20,773)	$ 25,289	$ (45,006)	$ (49,646)

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- Definition

Amount of unrealized gain (loss) on investment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-28

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