Operating and Reporting Segments (Disclosure Of Financial Information Relating To Company's Operations) (Details) $ in Thousands		3 Months Ended
		Feb. 28, 2017 USD ($) $ / homes	Feb. 29, 2016 USD ($) $ / homes	Feb. 10, 2017 USD ($)	Nov. 30, 2016 USD ($)
Segment Reporting Information [Line Items]
Assets	[1]	$ 16,230,113			$ 15,361,781
Revenues		2,337,428	$ 1,993,664
Operating earnings (loss):
Operating earnings		110,342	249,361
Corporate general and administrative expenses		60,699	47,668
Earnings before income taxes		49,643	201,693
Sales incentives		$ 123,500	$ 103,700
Sales incentives per home delivered (in dollars per home) | $ / homes		22,700	21,600
WCI Communities, Inc.
Segment Reporting Information [Line Items]
Goodwill				$ 163,298
Homebuilding East | WCI Communities, Inc.
Segment Reporting Information [Line Items]
Goodwill				$ 143,300
Rialto
Segment Reporting Information [Line Items]
Assets	[1]	$ 1,228,874			1,276,210
Goodwill		5,396			5,396
Revenues		82,006	$ 43,711
Lennar Financial Services
Segment Reporting Information [Line Items]
Assets	[1]	1,231,708			1,754,672
Goodwill		59,838			39,838
Revenues		148,043	123,956
Lennar Financial Services | WCI Communities, Inc.
Segment Reporting Information [Line Items]
Goodwill		20,000
Lennar Multifamily
Segment Reporting Information [Line Items]
Assets	[1]	610,161			526,131
Revenues		88,685	39,516
Lennar Homebuilding
Segment Reporting Information [Line Items]
Assets	[1]	13,159,370			11,804,768
Goodwill	[1]	143,298			0
Revenues		2,018,694	1,786,481
Operating earnings (loss):
Accrual for litigation		140,000	0
Operating Segments | Homebuilding East
Segment Reporting Information [Line Items]
Assets		4,791,376			3,512,990
Revenues		767,726	659,054
Operating earnings (loss):
Operating earnings		(55,709)	84,706
Accrual for litigation		140,000
Operating Segments | Homebuilding Central
Segment Reporting Information [Line Items]
Assets		2,070,652			1,993,403
Revenues		516,181	413,840
Operating earnings (loss):
Operating earnings		52,858	33,195
Operating Segments | Homebuilding West
Segment Reporting Information [Line Items]
Assets		4,606,982			4,318,924
Revenues		552,798	551,339
Operating earnings (loss):
Operating earnings		53,360	88,834
Operating Segments | Rialto
Segment Reporting Information [Line Items]
Assets		1,228,874			1,276,210
Revenues		82,006	43,711
Operating earnings (loss):
Operating earnings		(843)	1,610
Operating Segments | Lennar Financial Services
Segment Reporting Information [Line Items]
Assets		1,231,708			1,754,672
Revenues		148,043	123,956
Operating earnings (loss):
Operating earnings		20,664	14,931
Operating Segments | Lennar Multifamily
Segment Reporting Information [Line Items]
Assets		610,161			526,131
Revenues		88,685	39,516
Operating earnings (loss):
Operating earnings		19,183	12,182
Homebuilding Other
Segment Reporting Information [Line Items]
Assets		900,876			907,523
Revenues		181,989	162,248
Operating earnings (loss):
Operating earnings		20,829	$ 13,903
Corporate and unallocated
Segment Reporting Information [Line Items]
Assets		$ 789,484			$ 1,071,928

[1] Under certain provisions of Accounting Standards Codification ("ASC") Topic 810, Consolidations, ("ASC 810") the Company is required to separately disclose on its condensed consolidated balance sheets the assets owned by consolidated variable interest entities ("VIEs") and liabilities of consolidated VIEs as to which neither Lennar Corporation, or any of its subsidiaries, has any obligations. As of February 28, 2017, total assets include $651.1 million related to consolidated VIEs of which $9.5 million is included in Lennar Homebuilding cash and cash equivalents, $0.1 million in Lennar Homebuilding receivables, net, $72.4 million in Lennar Homebuilding finished homes and construction in progress, $177.5 million in Lennar Homebuilding land and land under development, $156.2 million in Lennar Homebuilding consolidated inventory not owned, $4.6 million in Lennar Homebuilding investments in unconsolidated entities, $16.4 million in Lennar Homebuilding other assets, $173.2 million in Rialto assets and $41.2 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.