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Financial Instruments and Fair Value Disclosures - (Fair Value Measured On Recurring Basis) (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands | May 31, 2023 | Nov. 30, 2022
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Level 1 | Lennar Financial Services | Forward options |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Derivative asset | $ 7,261 | $ 9,473
Level 1 | Lennar Other |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Investments in equity securities | 227,548 | 212,981
Level 3 | Lennar Financial Services |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Mortgage servicing rights | 3,398 | 3,463
Level 3 | Lennar Other |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Investments available-for-sale | 36,906 | 35,482
Residential | Loans held-for-sale | Lennar Financial Services |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Aggregate principal balance | 1,159,857 | 1,734,480
Aggregate fair value of loans (below) in excess of principal balance | (7,331) | 16,233
Residential | Level 1 | Lennar Financial Services |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Loans held for sale | 1,152,526 | 1,750,712
Commercial | Loans held-for-sale | Lennar Financial Services |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Aggregate principal balance | 22,765 | 24,000
Aggregate fair value of loans (below) in excess of principal balance | (11) | 1,599
Commercial | Level 3 | Lennar Financial Services |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Loans held for sale | $ 22,754 | $ 25,599

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