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Operating and Reporting Segments - Unrealized Gain (Loss) on Investments (Details) - Lennar Other - USD ($) $ in Thousands | 12 Months Ended
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Nov. 30, 2024 | Nov. 30, 2023
Segment Reporting Information [Line Items] |  |
Lennar Other unrealized gains (losses) from technology investments | $ 25,180 | $ (50,162)
Blend Labs (BLND) |  |
Segment Reporting Information [Line Items] |  |
Lennar Other unrealized gains (losses) from technology investments | 9,474 | (130)
Hippo (HIPO) |  |
Segment Reporting Information [Line Items] |  |
Lennar Other unrealized gains (losses) from technology investments | 73,243 | (19,210)
Opendoor (OPEN) |  |
Segment Reporting Information [Line Items] |  |
Lennar Other unrealized gains (losses) from technology investments | (12,587) | 21,762
SmartRent (SMRT) |  |
Segment Reporting Information [Line Items] |  |
Lennar Other unrealized gains (losses) from technology investments | (11,609) | 5,914
Sonder (SOND) |  |
Segment Reporting Information [Line Items] |  |
Lennar Other unrealized gains (losses) from technology investments | 15 | (700)
Sunnova (NOVA) |  |
Segment Reporting Information [Line Items] |  |
Lennar Other unrealized gains (losses) from technology investments | $ (33,356) | $ (57,798)

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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 + Details
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