Lennar Multifamily Segment (Condensed Financial Information by Equity Method Investments) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2017 USD ($) property	Aug. 31, 2016 USD ($) property	Aug. 31, 2017 USD ($) property	Aug. 31, 2016 USD ($) property	Nov. 30, 2016 USD ($)
Liabilities and equity:
Equity in earnings (loss) from unconsolidated entities			$ 12,838	$ 28,424
Lennar Multifamily
Assets:
Cash and cash equivalents	$ 51,725		51,725		$ 43,658
Operating properties and equipment	2,832,790		2,832,790		2,210,627
Other assets	35,848		35,848		33,703
Total assets	2,920,363		2,920,363		2,287,988
Liabilities and equity:
Accounts payable and other liabilities	220,881		220,881		196,617
Notes payable	821,500		821,500		577,085
Equity	1,877,982		1,877,982		1,514,286
Total liabilities and equity	2,920,363		2,920,363		2,287,988
Debt issuance cost	17,400		17,400		$ 12,300
Revenues	18,822	$ 13,796	44,414	31,759
Costs and expenses	28,904	24,611	75,727	50,341
Other income (expense), net	47,210	20,335	125,939	90,729
Net earnings (loss) of unconsolidated entities	37,128	9,520	94,626	72,147
Equity in earnings (loss) from unconsolidated entities	11,645	5,060	44,219	38,754
Gain on disposition of assets	$ 15,400	$ 8,000	$ 52,900	$ 43,800
Number of operating properties sold | property	2	1	5	3
General Contractor Revenue	$ 90,300	$ 71,600	$ 250,700	$ 156,500
General Contractor Costs	86,700	69,100	243,700	151,400
Equity Method Investee | Lennar Multifamily
Segment Reporting Information [Line Items]
Management Fees Revenue	$ 13,100	$ 10,000	$ 41,200	$ 27,400