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Financial Instruments and Fair Value Disclosure (Fair Value Measured On Recurring Basis) (Details) - USD ($) $ in Thousands | Nov. 30, 2023 | Nov. 30, 2022
--- | --- | ---
Residential Portfolio Segment |  |
Financial Instruments [Line Items] |  |
Aggregate principal balance of loans held-for-sale | $ 2,083,776 | $ 1,734,480
Aggregate fair value of loans held-for-sale in excess of principal balance | (10,426) | 16,233
Commercial Portfolio Segment |  |
Financial Instruments [Line Items] |  |
Aggregate principal balance of loans held-for-sale | 13,650 | 24,000
Aggregate fair value of loans held-for-sale in excess of principal balance | (191) | 1,599
Lennar Other |  |
Financial Instruments [Line Items] |  |
Investments available-for-sale | 38,000 | 35,500
Fair Value, Measurements, Recurring | Financial Services | Level 1 | Forward options |  |
Financial Instruments [Line Items] |  |
Derivative asset | 5,937 | 9,473
Fair Value, Measurements, Recurring | Financial Services | Level 2 | Residential Portfolio Segment |  |
Financial Instruments [Line Items] |  |
Loans held-for-sale | 2,073,350 | 1,750,712
Fair Value, Measurements, Recurring | Financial Services | Level 3 |  |
Financial Instruments [Line Items] |  |
Mortgage servicing rights | 3,440 | 3,463
Fair Value, Measurements, Recurring | Financial Services | Level 3 | Commercial Portfolio Segment |  |
Financial Instruments [Line Items] |  |
Loans held-for-sale | 13,459 | 25,599
Fair Value, Measurements, Recurring | Lennar Other | Level 1 |  |
Financial Instruments [Line Items] |  |
Investments in equity securities | 176,198 | 212,981
Fair Value, Measurements, Recurring | Lennar Other | Level 3 |  |
Financial Instruments [Line Items] |  |
Investments available-for-sale | $ 37,953 | $ 35,482

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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. 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