Lennar Homebuilding Investments in Unconsolidated Entities (Total Debt Of Unconsolidated Entities) (Details) - Lennar Homebuilding - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Aug. 31, 2016	Nov. 30, 2015
Schedule of Equity Method Investments [Line Items]
Non-recourse bank debt and other debt (partner’s share of several recourse)	$ 48,792	$ 50,411
Non-recourse land seller debt and other debt	323,995	324,000
Non-recourse debt with completion guarantees	137,152	146,760
Non-recourse debt without completion guarantees	306,929	260,734
Non-recourse debt to the Company	816,868	781,905
The Company’s maximum recourse exposure	48,628	10,981
Total debt	$ 865,496	$ 792,886
The Company’s maximum recourse exposure as a % of total JV debt	6.00%	1.00%