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Financial Instruments and Fair Value Disclosures - (Fair Value Measured On Recurring Basis) (Details) - USD ($) $ in Thousands | Aug. 31, 2021 | Nov. 30, 2020
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Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Investments available-for-sale | $ 41,695 | $ 53,497
Lennar Other |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Investments available-for-sale | 41,695 | 53,497
Financial Services |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Investments available-for-sale | 0 | 0
Fair Value, Measurements, Recurring | Level 1 | Lennar Other |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Investments in equity securities | 1,085,571 | 0
Fair Value, Measurements, Recurring | Level 3 | Lennar Other |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Investments available-for-sale | 41,695 | 53,497
Fair Value, Measurements, Recurring | Level 3 | Financial Services |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Mortgage servicing rights | 2,382 | 2,113
Residential | Fair Value, Measurements, Recurring | Loans held-for-sale | Financial Services |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Aggregate principal balance | 1,103,647 | 1,232,548
Aggregate fair value of loans (below) in excess of principal balance | 37,813 | 63,969
Residential | Fair Value, Measurements, Recurring | Level 2 | Financial Services |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Loans held for sale | 1,141,460 | 1,296,517
Commercial | Fair Value, Measurements, Recurring | Loans held-for-sale | Financial Services |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Aggregate principal balance | 116,010 | 194,362
Aggregate fair value of loans (below) in excess of principal balance | (2,881) | (774)
Commercial | Fair Value, Measurements, Recurring | Level 3 | Financial Services |  |
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items] |  |
Loans held for sale | $ 113,129 | $ 193,588

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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121553693&loc=d3e26610-111562 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563 + Details
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- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740 + Details
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- Definition Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122492-111745 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=116651436&loc=d3e122625-111746 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745 + Details
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