Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Nov. 30, 2015	Aug. 31, 2015	May. 31, 2015	Feb. 28, 2015	Nov. 30, 2014	Aug. 31, 2014	May. 31, 2014	Feb. 28, 2014	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2011	May. 31, 2010
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net earnings attributable to Lennar	$ 281,603	$ 223,312	$ 183,016	$ 114,963	$ 245,323	$ 177,757	$ 137,719	$ 78,117	$ 802,894	$ 638,916	$ 479,674
Participating securities, distributed and undistributed earnings (loss), basic									361	414	458
Undistributed earnings (loss) allocated to participating securities, basic									8,371	7,379	6,356
Numerator for basic earnings per share									794,162	631,123	472,860
Dilutive Securities, Effect on Basic Earnings Per Share, Attributable to Noncontrolling Interest									4,120	0	0
Plus: interest on 3.25% convertible senior notes due 2021 and 2.00% convertible senior notes due 2020 (2)									7,928	7,928	11,302
Plus: undistributed earnings allocated to convertible shares									8,371	7,379	6,356
Less: undistributed earnings reallocated to convertible shares									7,528	6,632	5,506
Numerator for diluted earnings per share									$ 798,813	$ 639,798	$ 485,012
Denominator for basic earnings per share - weighted average common shares outstanding (in shares)									205,189,000	202,209,000	190,473,000
Shared based payments (in shares)									9,000	8,000	254,000
Convertible senior notes (in shares)									25,614,000	26,023,000	35,193,000
Denominator for diluted earnings (loss) per share - weighted average common shares outstanding (in shares)									230,812,000	228,240,000	225,920,000
Basic earnings (loss) per share (in usd per share)	$ 1.34	$ 1.07	$ 0.89	$ 0.56	$ 1.20	$ 0.87	$ 0.67	$ 0.38	$ 3.87	$ 3.12	$ 2.48
Diluted earnings (loss) per share (in usd per share)	$ 1.21	$ 0.96	$ 0.79	$ 0.50	$ 1.07	$ 0.78	$ 0.61	$ 0.35	$ 3.46	$ 2.80	$ 2.15
Stock Award Incentive Plan, Employee Distribution Percentage									40.00%
Options to purchase outstanding and anti-dilutive shares (in shares)									0	0	0
3.25% Convertible Senior Notes Due 2021 [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Interest rate	3.25%								3.25%			3.25%	3.25%
2.00% Convertible Senior Notes Due 2020 [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Interest rate														2.00%