Operating And Reporting Segments (Schedule of Segment Assets, Investments in Unconsolidated Entities, and Goodwill) (Details) - USD ($) $ in Thousands		Nov. 30, 2017		Nov. 30, 2016		Nov. 30, 2015
Segment Reporting Information [Line Items]
Assets		$ 18,745,034	[1]	$ 15,361,781	[1]	$ 14,419,509
Lennar Homebuilding
Segment Reporting Information [Line Items]
Assets	[1]	15,190,961		11,804,768
Investments in unconsolidated entities		900,769	[1]	811,723	[1]	741,551
Goodwill		136,566	[1]	0		0
Rialto
Segment Reporting Information [Line Items]
Assets	[1]	1,153,840		1,276,210
Investments in unconsolidated entities		265,418		245,741
Goodwill		5,396		5,396		5,396
Lennar Financial Services
Segment Reporting Information [Line Items]
Assets	[1]	1,689,508		1,754,672
Goodwill		59,838		39,838		38,854
Lennar Multifamily
Segment Reporting Information [Line Items]
Assets	[1]	710,725		526,131
Investments in unconsolidated entities		407,544		318,559
Operating Segments | Homebuilding East (1)
Segment Reporting Information [Line Items]
Assets		4,754,581		3,512,990		3,140,604
Investments in unconsolidated entities		68,670		62,900		40,573
Operating Segments | Homebuilding Central
Segment Reporting Information [Line Items]
Assets		2,037,905		1,993,403		1,902,581
Investments in unconsolidated entities		25,220		36,031		35,925
Operating Segments | Homebuilding West
Segment Reporting Information [Line Items]
Assets		5,165,218		4,318,924		4,157,616
Investments in unconsolidated entities		791,995		696,471		649,170
Operating Segments | Rialto
Segment Reporting Information [Line Items]
Assets		1,153,840		1,276,210		1,505,500
Investments in unconsolidated entities		265,418		245,741		224,869
Operating Segments | Lennar Financial Services
Segment Reporting Information [Line Items]
Assets		1,689,508		1,754,672		1,425,837
Operating Segments | Lennar Multifamily
Segment Reporting Information [Line Items]
Assets		710,725		526,131		415,352
Investments in unconsolidated entities		407,544		318,559		250,876
Homebuilding Other
Segment Reporting Information [Line Items]
Assets		960,541		907,523		858,000
Investments in unconsolidated entities		14,884		16,321		15,883
Corporate and unallocated
Segment Reporting Information [Line Items]
Assets		$ 2,272,716		$ 1,071,928		$ 1,014,019

[1] Under certain provisions of Accounting Standards Codification ("ASC") Topic 810, Consolidations, ("ASC 810") the Company is required to separately disclose on its consolidated balance sheets the assets of consolidated variable interest entities ("VIEs") that are owned by the consolidated VIEs and liabilities of consolidated VIEs as to which there is no recourse against the Company.As of November 30, 2017, total assets include $799.4 million related to consolidated VIEs of which $15.8 million is included in Lennar Homebuilding cash and cash equivalents, $0.2 million in Lennar Homebuilding receivables, net, $53.2 million in Lennar Homebuilding finished homes and construction in progress, $229.0 million in Lennar Homebuilding land and land under development, $393.3 million in Lennar Homebuilding consolidated inventory not owned, $4.6 million in Lennar Homebuilding investments in unconsolidated entities, $11.8 million in Lennar Homebuilding other assets, $48.8 million in Rialto assets and $42.7 million in Lennar Multifamily assets.As of November 30, 2016, total assets include $536.3 million related to consolidated VIEs of which $13.3 million is included in Lennar Homebuilding cash and cash equivalents, $0.2 million in Lennar Homebuilding receivables, net, $54.2 million in Lennar Homebuilding finished homes and construction in progress, $106.3 million in Lennar Homebuilding land and land under development, $121.0 million in Lennar Homebuilding consolidated inventory not owned, $4.6 million in Lennar Homebuilding investments in unconsolidated entities, $13.9 million in Lennar Homebuilding other assets, $213.8 million in Rialto assets and $8.8 million in Lennar Multifamily assets.