Financial Instruments and Fair Value Disclosures - (Fair Value Measured On Recurring Basis) (Details) - USD ($) $ in Thousands	Aug. 31, 2018	Nov. 30, 2017
Rialto \| Fair Value, Measurements, Recurring \| RMF loans held-for-sale
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Aggregate principal balance	$ 139,900	$ 235,400
Aggregate fair value of loans (below) in excess of principal balance	800	(1,000)
Rialto \| Fair Value, Measurements, Recurring \| Level 3
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Financial asset	140,718	234,403
Lennar Financial Services
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Investments available-for-sale	47,034	57,439
Lennar Financial Services \| Mortgage loan commitments
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Financial asset	19,300	9,900
Lennar Financial Services \| Forward contracts
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Financial asset		1,700
Financial liability	2,600
Lennar Financial Services \| Fair Value, Measurements, Recurring \| RMF loans held-for-sale
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Aggregate principal balance	917,100	908,800
Aggregate fair value of loans (below) in excess of principal balance	28,300	28,700
Lennar Financial Services \| Fair Value, Measurements, Recurring \| Level 1
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Investments available-for-sale	47,034	57,439
Lennar Financial Services \| Fair Value, Measurements, Recurring \| Level 2
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Financial asset	945,387	937,516
Lennar Financial Services \| Fair Value, Measurements, Recurring \| Level 3
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Mortgage servicing rights	35,074	31,163
Lennar Financial Services \| Fair Value, Measurements, Recurring \| Mortgage loan commitments \| Level 2
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Financial asset	19,282	9,873
Lennar Financial Services \| Fair Value, Measurements, Recurring \| Forward contracts \| Level 2
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Forward contracts	$ (2,645)	$ 1,681

Fair Value, Option, Principal Amount Outstanding, Loans and Long-Term Receivables

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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 320
-SubTopic 10
-Section 45
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-Subparagraph (b)
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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

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-SubTopic 20
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- Definition

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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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

No definition available.

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- Definition

This item represents the difference between the aggregate fair value and the aggregate unpaid principal balance of loans and long-term receivables (other than securities categorized as trading, available-for-sale or held-to-maturity) that have contractual principal amounts and for which the fair value option has been elected.

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- Definition

Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

+ References

No definition available.

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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.

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