Supplemental Financial Information (Condensed Consolidating Statement of Cash Flows) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2016	May 31, 2015	May 31, 2016	May 31, 2015
Cash flows from operating activities:
Net earnings (including net earnings attributable to noncontrolling interests)	$ 224,038	$ 184,584	$ 369,490	$ 301,501
Distributions of earnings from guarantor and non-guarantor subsidiaries			0	0
Other adjustments to reconcile net earnings (including net earnings attributable to noncontrolling interests) to net cash provided by (used in) operating activities			(544,872)	(1,296,034)
Net cash used in operating activities			(175,382)	(994,533)
Cash flows from investing activities:
Proceeds from the sale of operating properties and equipment			0	73,732
Investments in and contributions to unconsolidated entities, net of distributions of capital			(107,216)	(31,502)
Proceeds from sales of real estate owned			43,412	55,812
Receipts of principal payments on loans receivable and other			5,484	13,335
Originations of loans receivable			(16,864)	(2,750)
Purchases of commercial mortgage-backed securities bonds			(33,005)	0
Other			(41,438)	(118,713)
Distributions of capital from guarantor and non-guarantor subsidiaries			0	0
Intercompany			0	0
Net cash used in investing activities			(149,627)	(7,336)
Cash flows from financing activities:
Net borrowings under unsecured revolving credit facility			375,000	450,000
Net (repayments) borrowings under warehouse facilities			(230,206)	189,632
Proceeds from senior notes and debt issuance costs			495,228	744,115
Redemption of senior notes			(250,000)	(500,000)
Conversions and exchanges on convertible senior notes			(233,893)	0
Net proceeds (repayments) on other borrowings			(87,532)	(137,160)
Net payments related to noncontrolling interests			(73,028)	(77,570)
Excess tax benefits from share-based awards			7,039	113
Common stock:
Issuances			594	9,412
Repurchases			(971)	(972)
Dividends			(17,191)	(16,418)
Intercompany			0	0
Net cash (used in) provided by financing activities			(17,959)	640,212
Net decrease in cash and cash equivalents			(342,968)	(361,657)
Cash and cash equivalents at beginning of period			1,158,445	1,281,814
Cash and cash equivalents at end of period	815,477	920,157	815,477	920,157
Rialto
Cash flows from financing activities:
Principal payments on Rialto notes payable including structured notes			(2,999)	(20,940)
Common stock:
Cash and cash equivalents at beginning of period			150,219
Cash and cash equivalents at end of period	103,622		103,622
Reportable Legal Entities | Lennar Corporation
Cash flows from operating activities:
Net earnings (including net earnings attributable to noncontrolling interests)	218,469	186,750	362,549	297,979
Distributions of earnings from guarantor and non-guarantor subsidiaries			432,925	359,706
Other adjustments to reconcile net earnings (including net earnings attributable to noncontrolling interests) to net cash provided by (used in) operating activities			(412,335)	(315,966)
Net cash used in operating activities			383,139	341,719
Cash flows from investing activities:
Proceeds from the sale of operating properties and equipment				0
Investments in and contributions to unconsolidated entities, net of distributions of capital			0	0
Proceeds from sales of real estate owned			0	0
Receipts of principal payments on loans receivable and other			0	0
Originations of loans receivable			0
Purchases of commercial mortgage-backed securities bonds			0
Other			(6,704)	(23,345)
Distributions of capital from guarantor and non-guarantor subsidiaries			40,000	30,000
Intercompany			(1,008,886)	(1,286,061)
Net cash used in investing activities			(975,590)	(1,279,406)
Cash flows from financing activities:
Net borrowings under unsecured revolving credit facility			375,000	450,000
Net (repayments) borrowings under warehouse facilities			0	0
Proceeds from senior notes and debt issuance costs			495,974	744,409
Redemption of senior notes			(250,000)	(500,000)
Conversions and exchanges on convertible senior notes			(233,893)
Net proceeds (repayments) on other borrowings			0	20,988
Net payments related to noncontrolling interests			0	0
Excess tax benefits from share-based awards			7,039	113
Common stock:
Issuances			594	9,412
Repurchases			(971)	(972)
Dividends			(17,191)	(16,418)
Intercompany			0	0
Net cash (used in) provided by financing activities			376,552	707,532
Net decrease in cash and cash equivalents			(215,899)	(230,155)
Cash and cash equivalents at beginning of period			575,821	633,318
Cash and cash equivalents at end of period	359,922	403,163	359,922	403,163
Reportable Legal Entities | Lennar Corporation | Rialto
Cash flows from financing activities:
Principal payments on Rialto notes payable including structured notes			0	0
Reportable Legal Entities | Guarantor Subsidiaries
Cash flows from operating activities:
Net earnings (including net earnings attributable to noncontrolling interests)	247,893	213,706	413,755	358,298
Distributions of earnings from guarantor and non-guarantor subsidiaries			19,996	20,086
Other adjustments to reconcile net earnings (including net earnings attributable to noncontrolling interests) to net cash provided by (used in) operating activities			(789,132)	(985,129)
Net cash used in operating activities			(355,381)	(606,745)
Cash flows from investing activities:
Proceeds from the sale of operating properties and equipment				0
Investments in and contributions to unconsolidated entities, net of distributions of capital			(65,441)	(11,716)
Proceeds from sales of real estate owned			0	0
Receipts of principal payments on loans receivable and other			0	0
Originations of loans receivable			0
Purchases of commercial mortgage-backed securities bonds			0
Other			(30,269)	(42,038)
Distributions of capital from guarantor and non-guarantor subsidiaries			40,000	30,000
Intercompany			0	0
Net cash used in investing activities			(55,710)	(23,754)
Cash flows from financing activities:
Net borrowings under unsecured revolving credit facility			0	0
Net (repayments) borrowings under warehouse facilities			0	0
Proceeds from senior notes and debt issuance costs			0	0
Redemption of senior notes			0	0
Conversions and exchanges on convertible senior notes			0
Net proceeds (repayments) on other borrowings			(87,532)	(88,647)
Net payments related to noncontrolling interests				0
Excess tax benefits from share-based awards			0	0
Common stock:
Issuances			0	0
Repurchases			0	0
Dividends			(453,755)	(388,298)
Intercompany			879,733	1,089,924
Net cash (used in) provided by financing activities			338,446	612,979
Net decrease in cash and cash equivalents			(72,645)	(17,520)
Cash and cash equivalents at beginning of period			336,048	255,501
Cash and cash equivalents at end of period	263,403	237,981	263,403	237,981
Reportable Legal Entities | Guarantor Subsidiaries | Rialto
Cash flows from financing activities:
Principal payments on Rialto notes payable including structured notes			0	0
Reportable Legal Entities | Non-Guarantor Subsidiaries
Cash flows from operating activities:
Net earnings (including net earnings attributable to noncontrolling interests)	28,592	10,156	46,107	25,016
Distributions of earnings from guarantor and non-guarantor subsidiaries			0	0
Other adjustments to reconcile net earnings (including net earnings attributable to noncontrolling interests) to net cash provided by (used in) operating activities			203,674	(374,731)
Net cash used in operating activities			249,781	(349,715)
Cash flows from investing activities:
Proceeds from the sale of operating properties and equipment				73,732
Investments in and contributions to unconsolidated entities, net of distributions of capital			(41,775)	(19,786)
Proceeds from sales of real estate owned			43,412	55,812
Receipts of principal payments on loans receivable and other			5,484	13,335
Originations of loans receivable			(16,864)
Purchases of commercial mortgage-backed securities bonds			(33,005)
Other			(4,465)	(53,330)
Distributions of capital from guarantor and non-guarantor subsidiaries			0	0
Intercompany			0	0
Net cash used in investing activities			(47,213)	69,763
Cash flows from financing activities:
Net borrowings under unsecured revolving credit facility			0	0
Net (repayments) borrowings under warehouse facilities			(230,206)	189,632
Proceeds from senior notes and debt issuance costs			(746)	(294)
Redemption of senior notes			0	0
Conversions and exchanges on convertible senior notes			0
Net proceeds (repayments) on other borrowings				(69,501)
Net payments related to noncontrolling interests			(73,028)	(77,570)
Excess tax benefits from share-based awards			0	0
Common stock:
Issuances			0	0
Repurchases			0	0
Dividends			(79,166)	(51,494)
Intercompany			129,153	196,137
Net cash (used in) provided by financing activities			(256,992)	165,970
Net decrease in cash and cash equivalents			(54,424)	(113,982)
Cash and cash equivalents at beginning of period			246,576	392,995
Cash and cash equivalents at end of period	192,152	279,013	192,152	279,013
Reportable Legal Entities | Non-Guarantor Subsidiaries | Rialto
Cash flows from financing activities:
Principal payments on Rialto notes payable including structured notes			(2,999)	(20,940)
Consolidating Adjustments
Cash flows from operating activities:
Net earnings (including net earnings attributable to noncontrolling interests)	(270,916)	(226,028)	(452,921)	(379,792)
Distributions of earnings from guarantor and non-guarantor subsidiaries			(452,921)	(379,792)
Other adjustments to reconcile net earnings (including net earnings attributable to noncontrolling interests) to net cash provided by (used in) operating activities			452,921	379,792
Net cash used in operating activities			(452,921)	(379,792)
Cash flows from investing activities:
Proceeds from the sale of operating properties and equipment				0
Investments in and contributions to unconsolidated entities, net of distributions of capital			0	0
Proceeds from sales of real estate owned			0	0
Receipts of principal payments on loans receivable and other			0	0
Originations of loans receivable			0
Purchases of commercial mortgage-backed securities bonds			0
Other			0	0
Distributions of capital from guarantor and non-guarantor subsidiaries			(80,000)	(60,000)
Intercompany			1,008,886	1,286,061
Net cash used in investing activities			928,886	1,226,061
Cash flows from financing activities:
Net borrowings under unsecured revolving credit facility			0	0
Net (repayments) borrowings under warehouse facilities			0	0
Proceeds from senior notes and debt issuance costs			0	0
Redemption of senior notes			0	0
Conversions and exchanges on convertible senior notes			0
Net proceeds (repayments) on other borrowings			0	0
Net payments related to noncontrolling interests			0	0
Excess tax benefits from share-based awards			0	0
Common stock:
Issuances			0	0
Repurchases			0	0
Dividends			532,921	439,792
Intercompany			(1,008,886)	(1,286,061)
Net cash (used in) provided by financing activities			(475,965)	(846,269)
Net decrease in cash and cash equivalents			0	0
Cash and cash equivalents at beginning of period			0	0
Cash and cash equivalents at end of period	$ 0	$ 0	0	0
Consolidating Adjustments | Rialto
Cash flows from financing activities:
Principal payments on Rialto notes payable including structured notes			$ 0	$ 0