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Income Taxes (Net Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands | Nov. 30, 2021 | Nov. 30, 2020
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Segment Reporting Information [Line Items] |  |
Net deferred tax assets |  | $ 187,382
Net deferred tax liabilities | $ (4,245) |
Homebuilding |  |
Segment Reporting Information [Line Items] |  |
Net deferred tax assets | 84,198 | 119,467
Financial Services |  |
Segment Reporting Information [Line Items] |  |
Net deferred tax assets |  | 1,024
Net deferred tax liabilities | (1,431) |
Multifamily |  |
Segment Reporting Information [Line Items] |  |
Net deferred tax assets | 64,247 | 38,155
Lennar Other |  |
Segment Reporting Information [Line Items] |  |
Net deferred tax assets |  | $ 28,736
Net deferred tax liabilities | $ (151,259) |

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