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Financial Instruments and Fair Value Disclosures - (Reconciliation Of Beginning And Ending Balance For The Company's Level 3 Recurring Fair Value Measurements) (Details) - Lennar Financial Services - USD ($) $ in Thousands | 3 Months Ended
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Feb. 28, 2025 | Feb. 29, 2024
Mortgage servicing rights |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | $ 3,463 | $ 3,440
Purchases/loan originations | 26 | 61
Sales/loan originations sold, including those not settled | 0 | 0
Disposals/settlements | (97) | (26)
Changes in fair value | (95) | 0
Interest and principal paydowns | 0 | 0
Ending balance | 3,297 | 3,475
LMF Commercial loans held-for-sale |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |
Beginning balance | 50,316 | 13,459
Purchases/loan originations | 127,965 | 140,825
Sales/loan originations sold, including those not settled | (94,887) | (26,950)
Disposals/settlements | 0 | 0
Changes in fair value | (281) | (2,128)
Interest and principal paydowns | (319) | 191
Ending balance | $ 82,794 | $ 125,397

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