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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, 2024	Aug. 31, 2023	Aug. 31, 2024	Aug. 31, 2023
Segment Reporting Information [Line Items]
Lennar Other unrealized gains (losses) from technology investments	$ 39,123	$ (15,713)	$ 12,472	$ (14,170)
Blend Labs
Segment Reporting Information [Line Items]
Lennar Other unrealized gains (losses) from technology investments	2,270	386	5,921	(360)
Hippo
Segment Reporting Information [Line Items]
Lennar Other unrealized gains (losses) from technology investments	6,609	(17,166)	33,795	(14,933)
Opendoor
Segment Reporting Information [Line Items]
Lennar Other unrealized gains (losses) from technology investments	(564)	23,638	(16,156)	38,459
SmartRent
Segment Reporting Information [Line Items]
Lennar Other unrealized gains (losses) from technology investments	(5,634)	(1,707)	(12,206)	8,219
Sonder
Segment Reporting Information [Line Items]
Lennar Other unrealized gains (losses) from technology investments	71	(91)	82	(549)
Sunnova
Segment Reporting Information [Line Items]
Lennar Other unrealized gains (losses) from technology investments	$ 36,371	$ (20,773)	$ 1,036	$ (45,006)

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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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