Financial Instruments (Fair Value Measured On Recurring Basis) (Details) (USD $)	6 Months Ended		12 Months Ended
	May 31, 2012		Nov. 30, 2011
Financial Instruments [Line Items]
Aggregate principal balance of loans held-for-sale	$ 254,100,000		$ 292,200,000
Loans held-for-sale difference	13,900,000		11,600,000
Lennar Financial Services [Member] | Fair Value, Inputs, Level 2 [Member]
Financial Instruments [Line Items]
Loans Held-for-sale, Fair Value Disclosure	267,969,000	[1]	303,780,000	[1]
Lennar Financial Services [Member] | Mortgage Loan Commitments [Member] | Fair Value, Inputs, Level 2 [Member]
Financial Instruments [Line Items]
Mortgage Loan Commitments	11,377,000		4,192,000
Lennar Financial Services [Member] | Forward Contracts [Member] | Fair Value, Inputs, Level 2 [Member]
Financial Instruments [Line Items]
Other Liabilities, Fair Value Disclosure	(5,434,000)		(1,404,000)
Lennar Homebuilding [Member] | Fair Value, Inputs, Level 3 [Member]
Financial Instruments [Line Items]
Investments available-for-sale	$ 24,306,000		$ 42,892,000

[1] The aggregate fair value of loans held-for-sale of $268.0 million at May 31, 2012 exceeds their aggregate principal balance of $254.1 million by $13.9 million. The aggregate fair value of loans held-for-sale of $303.8 million at November 30, 2011 exceeds their aggregate principal balance of $292.2 million by $11.6 million.