Operating And Reporting Segments (Disclosure Of Valuation Adjustments And Write-Offs Relating To Company's Homebuilding Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended			6 Months Ended			3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended					3 Months Ended	6 Months Ended
	May 31, 2012	May 31, 2011	May 31, 2012	May 31, 2011	May 31, 2012 Homebuilding East [Member]	May 31, 2011 Homebuilding East [Member]		May 31, 2012 Homebuilding East [Member]	May 31, 2011 Homebuilding East [Member]		May 31, 2012 Homebuilding Central [Member]	May 31, 2011 Homebuilding Central [Member]	May 31, 2012 Homebuilding Central [Member]	May 31, 2011 Homebuilding Central [Member]	May 31, 2012 Homebuilding West [Member]	May 31, 2011 Homebuilding West [Member]	May 31, 2012 Homebuilding West [Member]	May 31, 2011 Homebuilding West [Member]	May 31, 2012 Homebuilding Southeast Florida [Member]	May 31, 2011 Homebuilding Southeast Florida [Member]	May 31, 2012 Homebuilding Southeast Florida [Member]	May 31, 2011 Homebuilding Southeast Florida [Member]	May 31, 2012 Homebuilding Houston [Member]	May 31, 2011 Homebuilding Houston [Member]	May 31, 2012 Homebuilding Houston [Member]	May 31, 2011 Homebuilding Houston [Member]	May 31, 2012 Homebuilding Other [Member]	May 31, 2011 Homebuilding Other [Member]	May 31, 2012 Homebuilding Other [Member]	May 31, 2011 Homebuilding Other [Member]	May 31, 2012 Lennar Homebuilding [Member]		May 31, 2012 Lennar Homebuilding [Member]		May 31, 2011 Lennar Homebuilding [Member]	Nov. 30, 2011 Lennar Homebuilding [Member]		May 31, 2011 Homebuilding East Joint Venture [Member]	May 31, 2011 Homebuilding East Joint Venture [Member]
Segment Reporting Information [Line Items]
Valuation adjustments related to finished homes	$ 2,404	$ 3,328	$ 4,429	$ 8,140	$ 568	$ 324		$ 785	$ 1,176		$ 55	$ 201	$ 208	$ 4,077	$ 1,441	$ 1,568	$ 1,971	$ 1,582	$ 308	$ 763	$ 636	$ 763	$ 28	$ 168	$ 89	$ 217	$ 4	$ 304	$ 740	$ 325
Valuation adjustments to land	348	228	348	281	15	72		15	92		0	156	0	179	1	0	1	0	332	0	332	0	0	0	0	10
Write-offs of option deposits	481	372	771	453	322	346		329	346		5	26	54	26	0	0	232	0					0	0	0	81	154	0	156	0
Company's share of valuation adjustments related to assets of unconsolidated entities	5,437	0	5,437	4,526							0	0	0	371	5,437	0	5,437	1,660									0	0	0	2,495	5,400		5,400		4,526
Valuation adjustments to investments of unconsolidated entities	7	150	18	8,412	7	150	[1]	18	8,412	[1]																							8,400					150	150
Write-offs of other receivables and other assets	1,000	0	1,000	4,806	1,000	0		1,000	0																		0	0	0	4,806
Total valuation adjustments and write-offs of option deposits and pre-acquisition costs, other receivables and other assets	9,677	4,078	12,003	26,618
Equity Method Investments						29,800			29,800																						566,576	[2]	566,576	[2]		545,760	[2]
Gains (Losses) on Extinguishment of Debt						38,600			38,600																								988		0
Valuation Adjustments To Inventory Of Consolidated Entities						$ 38,700			$ 38,700

[1] (1)For both the three and six months ended May 31, 2011, the Company recorded a $0.1 million valuation adjustment related to a $29.8 million investment of a Lennar Homebuilding unconsolidated entity, which was the result of a linked transaction. The linked transaction resulted in a pre-tax gain of $38.6 million related to a debt extinguishment due to the Company's purchase of the Lennar Homebuilding entity debt's at a discount and a $38.7 million valuation adjustment of the Lennar Homebuilding unconsolidated entity's inventory upon acquisition. The net pre-tax loss of $0.1 million was included in Lennar Homebuilding other income (expense), net

[2] 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 May 31, 2012, total assets include $2,136.9 million related to consolidated VIEs of which $17.1 million is included in Lennar Homebuilding cash and cash equivalents, $1.3 million in Lennar Homebuilding restricted cash, $6.9 million in Lennar Homebuilding receivables, net, $17.0 million in Lennar Homebuilding finished homes and construction in progress, $511.2 million in Lennar Homebuilding land and land under development, $65.5 million in Lennar Homebuilding consolidated inventory not owned, $43.8 million in Lennar Homebuilding investments in unconsolidated entities, $218.9 million in Lennar Homebuilding other assets, $92.3 million in Rialto Investments cash and cash equivalents, $138.7 million in Rialto Investments defeasance cash to retire notes payable, $464.1 million in Rialto Investments loans receivable, net, $91.0 million in Rialto Investments real estate owned, held-for-sale, $460.4 million in Rialto Investments real estate owned, held-and-used, net, $0.6 million in Rialto Investments in unconsolidated entities and $8.1 million in Rialto Investments other assets.As of November 30, 2011, total assets include $2,317.4 million related to consolidated VIEs of which $19.6 million is included in Lennar Homebuilding cash and cash equivalents, $5.3 million in Lennar Homebuilding receivables, net, $0.1 million in Lennar Homebuilding finished homes and construction in progress, $538.2 million in Lennar Homebuilding land and land under development, $71.6 million in Lennar Homebuilding consolidated inventory not owned, $43.4 million in Lennar Homebuilding investments in unconsolidated entities, $219.6 million in Lennar Homebuilding other assets, $80.0 million in Rialto Investments cash and cash equivalents, $219.4 million in Rialto Investments defeasance cash to retire notes payable, $565.6 million in Rialto Investments loans receivable, net, $115.4 million in Rialto Investments real estate owned, held-for-sale, $428.0 million in Rialto Investments real estate owned, held-and-used, net, $0.6 million in Rialto Investments in unconsolidated entities and $10.6 million in Rialto Investments other assets.