Financial Instruments and Fair Value Disclosures - (Fair Value Assets Measured On Nonrecurring Basis) (Details) - Fair Value, Measurements, Nonrecurring - Level 3 - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2017	Feb. 29, 2016
Rialto
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Impaired loans receivable, carrying value	$ 31,550	$ 60,666
Impaired loans receivable, fair value	18,885	58,327
Impaired loans receivable, total gains (losses)	(12,665)	(2,339)
REO, net: Upon acquisition/transfer, carrying value	8,850	17,966
REO, net: Upon acquisition/transfer, fair value	8,394	20,683
REO, net: Upon acquisition/transfer, total gains (losses)	(456)	2,717
REO, net: Upon management periodic valuation, carrying value	52,425	19,519
REO, net: Upon management periodic valuation, fair value	40,096	16,649
REO, net: Upon management periodic valuation, total gains (losses)	(12,329)	(2,870)
Lennar Homebuilding
Fair Value, Assets and Liabilities Measured on a Recuring and Nonrecurring Basis [Line Items]
Land and land under development, carrying value	0	3,827
Land and land under development, fair value	0	3,425
Land and land under development, total gains (losses)	$ 0	$ (402)