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Financial Instruments and Fair Value Disclosures - (Carrying Amounts And Estimated Fair Value Of Financial Instruments) (Details) - USD ($) $ in Thousands	Aug. 31, 2023	Nov. 30, 2022
Lennar Financial Services | Level 3 | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans receivable and loans held-for-investment	$ 51,330	$ 45,636
Investments held-to-maturity	140,967	143,251
Lennar Financial Services | Level 3 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans receivable and loans held-for-investment	51,330	45,647
Investments held-to-maturity	139,993	143,208
Lennar Financial Services | Level 1 | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes and other debts payable	1,154,163	2,135,093
Lennar Financial Services | Level 1 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes and other debts payable	1,154,797	2,135,797
Homebuilding | Level 1 | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes and other debts payable	3,320,119	4,047,294
Homebuilding | Level 1 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes and other debts payable	3,271,836	3,993,242
Lennar Multifamily [Member] | Level 1 | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	3,477	16,749
Lennar Multifamily [Member] | Level 1 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notes payable	$ 3,477	$ 16,749

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Fair value portion of notes payable.

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