Lennar Multifamily Segment (Condensed Financial Information by Equity Method Investments) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2018 USD ($) property	Aug. 31, 2017 USD ($) property	Aug. 31, 2018 USD ($) property	Aug. 31, 2017 USD ($) property	Nov. 30, 2017 USD ($)
Segment Reporting Information [Line Items]
Distributions of capital from unconsolidated entities			$ 227,754	$ 123,209
Liabilities and equity:
Equity in earnings (loss) from unconsolidated entities			(8,115)	12,838
Lennar Multifamily
Assets:
Cash and cash equivalents	$ 30,472		30,472		$ 37,073
Operating properties and equipment	3,623,800		3,623,800		2,952,070
Other assets	38,309		38,309		36,772
Total assets	3,692,581		3,692,581		3,025,915
Liabilities and equity:
Accounts payable and other liabilities	201,301		201,301		212,123
Notes payable	1,287,488		1,287,488		879,047
Equity	2,203,792		2,203,792		1,934,745
Total liabilities and equity	3,692,581		3,692,581		3,025,915
Debt issuance cost	17,400		17,400		17,600
Revenues	31,907	$ 18,822	82,980	44,414
Costs and expenses	47,235	28,904	122,512	75,727
Other income (expense), net	13,588	47,210	52,457	125,939
Net earnings (loss) of unconsolidated entities	(1,740)	37,128	12,925	94,626
Equity in earnings (loss) from unconsolidated entities	(1,730)	11,645	15,293	44,219
Gain on disposition of assets	$ 1,700	$ 15,400	$ 23,300	$ 52,900
Number of operating properties sold | property	1	2	4	5
Investment	$ 482,241		$ 482,241		407,544
Lennar Multifamily Venture II LP | Lennar Multifamily
Segment Reporting Information [Line Items]
Distributions of capital from unconsolidated entities			52,900
Equity commitments called during period			146,100
Equity commitment contributions during period			55,400
Liabilities and equity:
Investment	45,600		45,600
Lennar Multifamily Venture | Lennar Multifamily
Segment Reporting Information [Line Items]
Funds Contributed by the Company	424,100		424,100
Distributions of capital from unconsolidated entities			11,800
Equity commitments called during period			316,100
Equity commitment contributions during period			73,400
Liabilities and equity:
Equity Commitments Called	1,800,000		1,800,000
Investment	$ 378,200		$ 378,200		$ 323,800