Schedule of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Feb. 28, 2019	Feb. 28, 2018
Numerator:
Net earnings attributable to Lennar	$ 239,910	$ 136,215
Less: distributed earnings allocated to nonvested shares	99	115
Less: undistributed earnings allocated to nonvested shares	1,860	1,282
Numerator for basic earnings per share	237,951	134,818
Less: net amount attributable to noncontrolling interests in Rialto's Carried Interest Incentive Plan	323	210
Plus: interest on convertible senior notes	0	26
Plus: undistributed earnings allocated to convertible shares	0	1
Numerator for diluted earnings per share	$ 237,628	$ 134,635
Denominator:
Denominator for basic earnings per share-weighted average common shares outstanding (shares)	321,339	253,665
Effect of dilutive securities:
Share-based payments (shares)	10	55
Convertible senior notes (shares)	0	728
Denominator for diluted earnings per share-weighted average common shares outstanding (shares)	321,349	254,448
Basic earnings per share (in dollars per share)	$ 0.74	$ 0.53
Diluted earnings per share (in dollars per share)	$ 0.74	$ 0.53
Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Options to purchase outstanding and anti-dilutive shares	0	0