Lennar Homebuilding Investments in Unconsolidated Entities (Total Debt Of Unconsolidated Entities) (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Feb. 28, 2018 USD ($) joint_venture	Nov. 30, 2017 USD ($) joint_venture
Schedule of Equity Method Investments [Line Items]
Number of unconsolidated entities debt repayment guarantee | joint_venture	3	3
Lennar Homebuilding
Schedule of Equity Method Investments [Line Items]
Non-recourse bank debt and other debt (partner’s share of several recourse)	$ 62,720	$ 64,197
Non-recourse land seller debt and other debt	1,997	1,997
Non-recourse debt with completion guarantees	251,235	255,903
Non-recourse debt without completion guarantees	355,844	351,800
Non-recourse debt to the Company	671,796	673,897
The Company’s maximum recourse exposure	70,096	69,181
Debt issue costs	5,296	5,747
Total debt	$ 736,596	$ 737,331
The Company’s maximum recourse exposure as a % of total JV debt	10.00%	9.00%