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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, 2022	Aug. 31, 2021	Aug. 31, 2022	Aug. 31, 2021
Segment Reporting Information [Line Items]
Lennar Other unrealized gains (losses) from technology investments	$ (85,839)	$ 493,671	$ (558,974)	$ 690,791
Blend Labs
Segment Reporting Information [Line Items]
Lennar Other unrealized gains (losses) from technology investments	(518)	6,852	(21,510)	6,852
Hippo
Segment Reporting Information [Line Items]
Lennar Other unrealized gains (losses) from technology investments	(32,933)	324,855	(195,336)	324,855
Opendoor
Segment Reporting Information [Line Items]
Lennar Other unrealized gains (losses) from technology investments	(54,391)	37,301	(218,751)	272,756
SmartRent
Segment Reporting Information [Line Items]
Lennar Other unrealized gains (losses) from technology investments	(23,118)	100,793	(71,431)	100,793
Sonder
Segment Reporting Information [Line Items]
Lennar Other unrealized gains (losses) from technology investments	(168)	0	(2,300)	0
Sunnova
Segment Reporting Information [Line Items]
Lennar Other unrealized gains (losses) from technology investments	$ 25,289	$ 23,870	$ (49,646)	$ (14,465)

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- Definition

Amount of unrealized gain (loss) on investment.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

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