Supplemental Financial Information (Condensed Consolidating Statement Of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Nov. 30, 2015	Aug. 31, 2015	May. 31, 2015	Feb. 28, 2015	Nov. 30, 2014	Aug. 31, 2014	May. 31, 2014	Feb. 28, 2014	Nov. 30, 2015	Nov. 30, 2014	Nov. 30, 2013
Revenues:
Total revenues	$ 2,945,567	$ 2,491,698	$ 2,392,604	$ 1,644,139	$ 2,583,938	$ 2,014,034	$ 1,818,745	$ 1,363,095	$ 9,474,008	$ 7,779,812	$ 5,935,095
Costs and Expenses [Abstract]
Corporate general and administrative									216,244	177,161	146,060
Total costs and expenses									8,387,992	6,857,774	5,249,259
Equity in earnings (loss) from unconsolidated entities									105,184	73,376	45,885
Earnings before income taxes	432,505	320,658	279,810	176,643	377,943	262,335	203,630	125,876	1,209,616	969,784	681,941
Benefit (provision) for income taxes									(390,416)	(341,091)	(177,015)
Equity in earnings from subsidiaries									0	0	0
Net earnings (including net earnings (loss) attributable to noncontrolling interests)									819,200	628,693	504,926
Less: Net earnings (loss) attributable to noncontrolling interests									16,306	(10,223)	25,252
Net earnings attributable to Lennar	$ 281,603	$ 223,312	$ 183,016	$ 114,963	$ 245,323	$ 177,757	$ 137,719	$ 78,117	802,894	638,916	479,674
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax									(65)	130	0
Reclassification adjustments for (gain) loss included in net earnings, net of tax									(26)	0	0
Comprehensive income (loss), net of tax, attributable to parent									802,803	639,046	479,674
Comprehensive income (loss), net of tax, attributable to noncontrolling interest									16,306	(10,223)	25,252
Lennar Corporation [Member]
Revenues:
Total revenues									0	0	0
Costs and Expenses [Abstract]
Corporate general and administrative									210,377	172,099	140,999
Total costs and expenses									210,377	172,099	140,999
Earnings before income taxes									(217,295)	(177,639)	(146,227)
Benefit (provision) for income taxes									71,099	61,818	54,353
Equity in earnings from subsidiaries									949,090	754,737	571,548
Net earnings (including net earnings (loss) attributable to noncontrolling interests)									802,894	638,916	479,674
Less: Net earnings (loss) attributable to noncontrolling interests									0	0	0
Net earnings attributable to Lennar									802,894	638,916	479,674
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax									0	0
Reclassification adjustments for (gain) loss included in net earnings, net of tax									0
Comprehensive income (loss), net of tax, attributable to parent									802,894	638,916	479,674
Comprehensive income (loss), net of tax, attributable to noncontrolling interest									0	0	0
Guarantor Subsidiaries [Member]
Revenues:
Total revenues									8,661,938	7,184,823	5,480,829
Costs and Expenses [Abstract]
Corporate general and administrative									806	0	0
Total costs and expenses									7,414,106	6,115,037	4,704,021
Earnings before income taxes									1,289,415	1,033,821	733,307
Benefit (provision) for income taxes									(412,301)	(357,277)	(204,940)
Equity in earnings from subsidiaries									51,956	39,691	44,980
Net earnings (including net earnings (loss) attributable to noncontrolling interests)									929,070	716,235	573,347
Less: Net earnings (loss) attributable to noncontrolling interests									0	0	0
Net earnings attributable to Lennar									929,070	716,235	573,347
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax									0	0
Reclassification adjustments for (gain) loss included in net earnings, net of tax									0
Comprehensive income (loss), net of tax, attributable to parent									929,070	716,235	573,347
Comprehensive income (loss), net of tax, attributable to noncontrolling interest									0	0	0
Non-Guarantor Subsidiaries [Member]
Revenues:
Total revenues									832,097	616,876	475,337
Costs and Expenses [Abstract]
Corporate general and administrative									0	0	0
Total costs and expenses									780,565	586,947	420,044
Earnings before income taxes									137,496	113,602	94,861
Benefit (provision) for income taxes									(49,214)	(45,632)	(26,428)
Equity in earnings from subsidiaries									0	0	0
Net earnings (including net earnings (loss) attributable to noncontrolling interests)									88,282	67,970	68,433
Less: Net earnings (loss) attributable to noncontrolling interests									16,306	(10,223)	25,252
Net earnings attributable to Lennar									71,976	78,193	43,181
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax									(65)	130
Reclassification adjustments for (gain) loss included in net earnings, net of tax									(26)
Comprehensive income (loss), net of tax, attributable to parent									71,885	78,323	43,181
Comprehensive income (loss), net of tax, attributable to noncontrolling interest									16,306	(10,223)	25,252
Eliminations [Member]
Revenues:
Total revenues									(20,027)	(21,887)	(21,071)
Costs and Expenses [Abstract]
Corporate general and administrative									5,061	5,062	5,061
Total costs and expenses									(17,056)	(16,309)	(15,805)
Earnings before income taxes									0	0	0
Benefit (provision) for income taxes									0	0	0
Equity in earnings from subsidiaries									(1,001,046)	(794,428)	(616,528)
Net earnings (including net earnings (loss) attributable to noncontrolling interests)									(1,001,046)	(794,428)	(616,528)
Less: Net earnings (loss) attributable to noncontrolling interests									0	0	0
Net earnings attributable to Lennar									(1,001,046)	(794,428)	(616,528)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax									0	0
Reclassification adjustments for (gain) loss included in net earnings, net of tax									0
Comprehensive income (loss), net of tax, attributable to parent									(1,001,046)	(794,428)	(616,528)
Comprehensive income (loss), net of tax, attributable to noncontrolling interest									0	0	0
Lennar Homebuilding [Member]
Revenues:
Real estate revenues									8,466,945	7,025,130	5,354,947
Costs and Expenses [Abstract]
Real estate cost of revenues									7,264,839	5,962,029	4,579,108
Equity in earnings (loss) from unconsolidated entities									63,373	(355)	23,803
Other income (expense), net									18,616	7,526	27,346
Other interest expense									(12,454)	(36,551)	(93,913)
Lennar Homebuilding [Member] | Lennar Corporation [Member]
Revenues:
Real estate revenues									0	0	0
Costs and Expenses [Abstract]
Real estate cost of revenues									0	0	0
Equity in earnings (loss) from unconsolidated entities									0	0	0
Other income (expense), net									(1,124)	254	542
Other interest expense									(5,794)	(5,794)	(5,770)
Lennar Homebuilding [Member] | Guarantor Subsidiaries [Member]
Revenues:
Real estate revenues									8,466,945	7,023,678	5,317,890
Costs and Expenses [Abstract]
Real estate cost of revenues									7,231,495	5,961,062	4,546,670
Equity in earnings (loss) from unconsolidated entities									49,134	(4,140)	22,966
Other income (expense), net									4,903	4,726	27,446
Other interest expense									(12,454)	(36,551)	(93,913)
Lennar Homebuilding [Member] | Non-Guarantor Subsidiaries [Member]
Revenues:
Real estate revenues									0	1,452	37,057
Costs and Expenses [Abstract]
Real estate cost of revenues									49,327	9,444	25,129
Equity in earnings (loss) from unconsolidated entities									14,239	3,785	837
Other income (expense), net									17,660	2,762	(138)
Other interest expense									0	0	0
Lennar Homebuilding [Member] | Eliminations [Member]
Revenues:
Real estate revenues									0	0	0
Costs and Expenses [Abstract]
Real estate cost of revenues									(15,983)	(8,477)	7,309
Equity in earnings (loss) from unconsolidated entities									0	0	0
Other income (expense), net									(2,823)	(216)	(504)
Other interest expense									5,794	5,794	5,770
Lennar Financial Services [Member]
Revenues:
Lennar Financial Services									620,527	454,381	427,342
Costs and Expenses [Abstract]
Lennar Financial Services									492,732	374,243	341,556
Lennar Financial Services [Member] | Lennar Corporation [Member]
Revenues:
Lennar Financial Services									0	0	0
Costs and Expenses [Abstract]
Lennar Financial Services									0	0	0
Lennar Financial Services [Member] | Guarantor Subsidiaries [Member]
Revenues:
Lennar Financial Services									194,993	161,145	162,939
Costs and Expenses [Abstract]
Lennar Financial Services									181,805	153,975	157,351
Lennar Financial Services [Member] | Non-Guarantor Subsidiaries [Member]
Revenues:
Lennar Financial Services									445,535	315,123	285,474
Costs and Expenses [Abstract]
Lennar Financial Services									316,003	233,162	212,380
Lennar Financial Services [Member] | Eliminations [Member]
Revenues:
Lennar Financial Services									(20,001)	(21,887)	(21,071)
Costs and Expenses [Abstract]
Lennar Financial Services									(5,076)	(12,894)	(28,175)
Rialto [Member]
Revenues:
Rialto									221,923	230,521	138,060
Costs and Expenses [Abstract]
Rialto costs and expenses									222,875	249,114	151,072
Equity in earnings (loss) from unconsolidated entities									22,293	59,277	22,353
Other income (expense), net									12,254	3,395	16,787
Less: Net earnings (loss) attributable to noncontrolling interests									4,765	(22,494)	6,238
Rialto [Member] | Lennar Corporation [Member]
Revenues:
Rialto									0	0	0
Costs and Expenses [Abstract]
Rialto costs and expenses									0	0	0
Equity in earnings (loss) from unconsolidated entities									0	0	0
Other income (expense), net									0	0	0
Rialto [Member] | Guarantor Subsidiaries [Member]
Revenues:
Rialto									0	0	0
Costs and Expenses [Abstract]
Rialto costs and expenses									0	0	0
Equity in earnings (loss) from unconsolidated entities									0	0	0
Other income (expense), net									0	0	0
Rialto [Member] | Non-Guarantor Subsidiaries [Member]
Revenues:
Rialto									221,923	230,521	138,060
Costs and Expenses [Abstract]
Rialto costs and expenses									223,933	249,114	151,072
Equity in earnings (loss) from unconsolidated entities									22,293	59,277	22,353
Other income (expense), net									12,254	3,395	16,787
Rialto [Member] | Eliminations [Member]
Revenues:
Rialto									0	0	0
Costs and Expenses [Abstract]
Rialto costs and expenses									(1,058)	0	0
Equity in earnings (loss) from unconsolidated entities									0	0	0
Other income (expense), net									0	0	0
Lennar Multifamily [Member]
Revenues:
Real estate revenues									164,613	69,780	14,746
Costs and Expenses [Abstract]
Real estate cost of revenues									191,302	95,227	31,463
Equity in earnings (loss) from unconsolidated entities									19,518	14,454	(271)
Lennar Multifamily [Member] | Lennar Corporation [Member]
Revenues:
Real estate revenues									0	0	0
Costs and Expenses [Abstract]
Real estate cost of revenues									0	0	0
Equity in earnings (loss) from unconsolidated entities									0	0	0
Lennar Multifamily [Member] | Guarantor Subsidiaries [Member]
Revenues:
Real estate revenues									0	0	0
Costs and Expenses [Abstract]
Real estate cost of revenues									0	0	0
Equity in earnings (loss) from unconsolidated entities									0	0	0
Lennar Multifamily [Member] | Non-Guarantor Subsidiaries [Member]
Revenues:
Real estate revenues									164,639	69,780	14,746
Costs and Expenses [Abstract]
Real estate cost of revenues									191,302	95,227	31,463
Equity in earnings (loss) from unconsolidated entities									19,518	14,454	(271)
Lennar Multifamily [Member] | Eliminations [Member]
Revenues:
Real estate revenues									(26)	0	0
Costs and Expenses [Abstract]
Real estate cost of revenues									0	0	0
Equity in earnings (loss) from unconsolidated entities									$ 0	$ 0	$ 0