Lennar Homebuilding Investments in Unconsolidated Entities (Statements Of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2017	Aug. 31, 2016
Schedule of Equity Method Investments [Line Items]
Equity in earnings (loss) from unconsolidated entities			$ 12,838	$ 28,424
Lennar Homebuilding
Schedule of Equity Method Investments [Line Items]
Revenues	$ 144,966	$ 43,889	323,689	352,251
Costs and expenses	151,643	110,649	421,554	409,219
Other income	12,578	0	18,695	0
Net earnings (loss) of unconsolidated entities	5,901	(66,760)	(79,170)	(56,968)
Equity in earnings (loss) from unconsolidated entities	$ (9,651)	$ (18,034)	$ (42,691)	$ (24,667)