Schedule of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2016	Aug. 31, 2015
Numerator:
Net earnings attributable to Lennar	$ 235,842	$ 223,312	$ 598,391	$ 521,291
Less: distributed earnings allocated to nonvested shares	81	91	256	271
Less: undistributed earnings allocated to nonvested shares	2,232	2,313	5,798	5,431
Numerator for basic earnings per share	233,529	220,908	592,337	515,589
Less: net amount attributable to noncontrolling interests in Rialto's Carried Interest Incentive Plan	258	1,044	864	2,842
Plus: interest on 3.25% convertible senior notes due 2021	964	1,982	4,836	5,946
Plus: undistributed earnings allocated to convertible shares	2,232	2,313	5,797	5,430
Less: undistributed earnings reallocated to convertible shares	2,162	2,093	5,484	4,870
Numerator for diluted earnings per share	$ 234,305	$ 222,066	$ 596,622	$ 519,253
Denominator:
Denominator for basic earnings per share-weighted average common shares outstanding (shares)	223,549	206,439	215,814	204,120
Effect of dilutive securities:
Share-based payments (shares)	3	7	4	9
Convertible senior notes (shares)	8,266	24,102	14,399	26,506
Denominator for diluted earnings per share-weighted average common shares outstanding (shares)	231,818	230,548	230,217	230,635
Basic earnings per share (in dollars per share)	$ 1.04	$ 1.07	$ 2.74	$ 2.53
Diluted earnings per share (in dollars per share)	$ 1.01	$ 0.96	$ 2.59	$ 2.25
Senior Notes | 3.25% convertible senior notes due 2021
Debt Instrument [Line Items]
Interest rate	3.25%		3.25%