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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
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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 + Details
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