Financial Instruments and Fair Value Disclosures - (Fair Value Measured On Recurring Basis) (Details) - USD ($) $ in Thousands	May 31, 2017	Nov. 30, 2016
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	$ 80,400	$ 127,800
Aggregate fair value of loans (below) in excess of principal balance	2,400	(900)
Rialto | Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Financial asset	82,803	126,947
Rialto | Fair Value, Measurements, Recurring | Credit default swaps | Level 2
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Financial asset	2,046	2,863
Rialto | Fair Value, Measurements, Recurring | Interest rate swaps and swap futures | Level 1
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Financial liability	906	6
Lennar Financial Services
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Investments available-for-sale	56,005	53,570
Lennar Financial Services | Mortgage loan commitments
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Financial asset	18,400	7,400
Lennar Financial Services | Forward contracts
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Financial asset		26,500
Financial liability	6,800
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	788,000	931,000
Aggregate fair value of loans (below) in excess of principal balance	32,400	8,400
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	56,005	53,570
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	820,443	939,405
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	27,370	23,930
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	18,372	7,437
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	$ (6,796)	$ 26,467