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, 2019	Aug. 31, 2018	Aug. 31, 2019	Aug. 31, 2018
Numerator:
Net earnings attributable to Lennar	$ 513,366	$ 453,211	$ 1,174,748	$ 899,683
Less: distributed earnings allocated to nonvested shares	119	105	312	319
Less: undistributed earnings allocated to nonvested shares	4,401	3,633	9,271	7,674
Numerator for basic earnings per share	508,846	449,473	1,165,165	891,690
Less: net amount attributable to noncontrolling interests in Rialto's Carried Interest Incentive Plan	1,498	347	4,655	796
Plus: interest on convertible senior notes	0	0	0	80
Plus: undistributed earnings allocated to convertible shares	0	0	0	6
Numerator for diluted earnings per share	$ 507,348	$ 449,126	$ 1,160,510	$ 890,980
Denominator:
Denominator for basic earnings per share-weighted average common shares outstanding (shares)	318,103	327,214	319,924	302,046
Effect of dilutive securities:
Share-based payments (shares)	1	23	3	57
Convertible senior notes (shares)	0	0	0	732
Denominator for diluted earnings per share-weighted average common shares outstanding (shares)	318,104	327,237	319,927	302,835
Basic earnings per share (in dollars per share)	$ 1.60	$ 1.37	$ 3.64	$ 2.95
Diluted earnings per share (in dollars per share)	$ 1.59	$ 1.37	$ 3.63	$ 2.94
Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options to purchase outstanding and anti-dilutive shares	0	0	0	0