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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, 2021 | Nov. 30, 2020 | Nov. 30, 2019
Segment Reporting Information [Line Items] |  |  |
Changes in fair value included in revenue | $ 680,576 | $ 0 | $ 0
Other realized gain | 11,705 |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Solar Business |  |  |
Segment Reporting Information [Line Items] |  |  |
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax | 158,069 |  |
Opendoor |  |  |
Segment Reporting Information [Line Items] |  |  |
Changes in fair value included in revenue | 239,312 |  |
Hippo |  |  |
Segment Reporting Information [Line Items] |  |  |
Changes in fair value included in revenue | 207,634 |  |
SmartRent |  |  |
Segment Reporting Information [Line Items] |  |  |
Changes in fair value included in revenue | 79,483 |  |
Sunnova Energy International Inc. |  |  |
Segment Reporting Information [Line Items] |  |  |
Changes in fair value included in revenue | (8,883) |  |
Blend Labs |  |  |
Segment Reporting Information [Line Items] |  |  |
Changes in fair value included in revenue | $ (6,744) |  |

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- Definition Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109222160&loc=d3e957-107759 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3B -URI http://asc.fasb.org/extlink&oid=109222160&loc=SL51721525-107759 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5C -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721675-107760 + Details
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- Definition Amount of realized gain (loss) on investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.3(a)) -URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 + Details
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