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Operating and Reporting Segments (Narrative) (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Aug. 31, 2022 | Aug. 31, 2021 | Aug. 31, 2022 | Aug. 31, 2021 | Nov. 30, 2021
Doma Holdings, Inc |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Unconsolidated entities ownership percentage | 25.00% |  | 25.00% |  |
Lennar's carrying value of investments | $ 17,100,000 |  | $ 17,100,000 |  |
Financial Services | Loss origination liability |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Loan origination liabilities | $ 12,100,000 |  | $ 12,100,000 |  | $ 11,700,000
Financial Services | Warehouse Repurchase Facility |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Collateral percentage | 80.00% |  | 80.00% |  |
CMBS | Financial Services |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Impairment charges for CMBS securities | $ 0 | $ 0 | $ 0 | $ 0 |

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