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Financial Instruments and Fair Value Disclosures - (Schedule Of Gains And Losses Of Financial Instruments) (Details) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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May 31, 2025 | May 31, 2024 | May 31, 2025 | May 31, 2024
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items] |  |  |  |
Changes in fair value included in other comprehensive income (loss), net of tax | $ (1,332) | $ 1,355 | $ (1,510) | $ 1,717
Fair Value, Measurements, Recurring | Lennar Financial Services | Forward contracts |  |  |  |
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items] |  |  |  |
Derivative, Gain (Loss) on Derivative, Net | 76,955 | (27,375) | 28,492 | 72,917
Fair Value, Measurements, Recurring | Lennar Financial Services | Forward options |  |  |  |
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items] |  |  |  |
Derivative, Gain (Loss) on Derivative, Net | (931) | (710) | 203 | (1,054)
Fair Value, Measurements, Recurring | Lennar Financial Services | Interest Rate Swap |  |  |  |
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items] |  |  |  |
Derivative, Gain (Loss) on Derivative, Net | 3,458 | (1,598) | 162 | (44)
Fair Value, Measurements, Recurring | Lennar Financial Services | Loans held-for-sale |  |  |  |
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items] |  |  |  |
Realized Investment Gains (Losses) | (32,753) | 17,187 | (2,350) | (28,865)
Fair Value, Measurements, Recurring | Lennar Financial Services | Mortgage loan commitments |  |  |  |
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items] |  |  |  |
Realized Investment Gains (Losses) | (22,583) | (1,447) | 10,921 | (32,102)
Fair Value, Measurements, Recurring | Lennar Other |  |  |  |
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items] |  |  |  |
Changes in fair value included in other comprehensive income (loss), net of tax | (1,332) | 1,355 | (1,510) | 1,717
Fair Value, Measurements, Recurring | Lennar Other | Equity Securities |  |  |  |
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Line Items] |  |  |  |
Lennar Other realized and unrealized losses from technology investments | $ (29,440) | $ (21,514) | $ (91,943) | $ (26,651)

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 102 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-102 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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- Definition Amount, after tax and before adjustment, of unrealized holding gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Excludes unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-9 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10A -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-10A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-11 + Details
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