Supplemental Financial Information (Condensed Consolidating Statement Of Cash Flows) (Details) - USD ($) $ in Thousands		3 Months Ended
		Feb. 29, 2016		Feb. 28, 2015
Condensed Financial Statements, Captions [Line Items]
Net earnings (including net earnings attributable to noncontrolling interests)		$ 145,452		$ 116,917
Distributions of earnings from subsidiaries		0		0
Adjustments to reconcile net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests) to net cash provided by (used in) operating activities		(361,339)		(847,181)
Net cash provided by (used in) operating activities		(215,887)		(730,264)
(Investments in and contributions to) and distributions of capital from unconsolidated entities, net		(34,615)		(17,282)
Proceeds from sales of real estate owned		20,256		28,055
Receipts of principal payments on loans receivable		2,725		3,519
Originations of loans receivable		(10,046)		0
Purchases of commercial mortgage-backed securities bond		(23,078)		0
Other		(19,103)		(81,486)
Distributions of capital from subsidiaries		0		0
Intercompany investing		0		0
Net cash provided by (used in) investing activities		(66,586)		(67,194)
Net borrowings under unsecured revolving credit facility		500,000		250,000
Net repayments under warehouse facilities		(395,233)		(29,681)
Net proceeds from senior notes		(684)		249,131
Repayment of convertible senior notes and debt		(162,852)
Proceeds from (repayments of) other debt		(52,383)		(61,418)
Net borrowings (payments) related to noncontrolling interests		(41,950)		(56,327)
Excess tax benefits from share-based awards		7,029		35
Issuances		0		8,227
Repurchases		(219)		(186)
Dividends		(8,552)		(8,208)
Intercompany financing		0		0
Net cash provided by (used in) financing activities		(155,513)		334,074
Net (decrease) increase in cash and cash equivalents		(437,986)		(463,384)
Cash and cash equivalents at beginning of period		1,158,445		1,281,814
Cash and cash equivalents at end of period		720,459		818,430
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Net earnings (including net earnings attributable to noncontrolling interests)		144,080		114,963
Distributions of earnings from subsidiaries		177,467		143,648
Adjustments to reconcile net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests) to net cash provided by (used in) operating activities		(254,499)		(195,594)
Net cash provided by (used in) operating activities		67,048		63,017
Proceeds from sales of real estate owned		0		0
Originations of loans receivable		0
Purchases of commercial mortgage-backed securities bond		0
Other		(3,400)		(114)
Distributions of capital from subsidiaries		20,000		10,000
Intercompany investing		(699,551)		(845,940)
Net cash provided by (used in) investing activities		(682,951)		(836,054)
Net borrowings under unsecured revolving credit facility		500,000		250,000
Net proceeds from senior notes				249,425
Repayment of convertible senior notes and debt		(162,852)
Excess tax benefits from share-based awards		7,029		35
Issuances				8,227
Repurchases		(219)		(186)
Dividends		(8,552)		(8,208)
Net cash provided by (used in) financing activities		335,406		499,293
Net (decrease) increase in cash and cash equivalents		(280,497)		(273,744)
Cash and cash equivalents at beginning of period		575,821		633,318
Cash and cash equivalents at end of period		295,324		359,574
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net earnings (including net earnings attributable to noncontrolling interests)		165,862		142,223
Distributions of earnings from subsidiaries		4,538		8,825
Adjustments to reconcile net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests) to net cash provided by (used in) operating activities		(660,587)		(678,406)
Net cash provided by (used in) operating activities		(490,187)		(527,358)
(Investments in and contributions to) and distributions of capital from unconsolidated entities, net		(32,149)		(10,668)
Proceeds from sales of real estate owned		0		0
Originations of loans receivable		0
Purchases of commercial mortgage-backed securities bond		0
Other		(14,297)		(52,518)
Distributions of capital from subsidiaries		20,000		10,000
Intercompany investing		0		0
Net cash provided by (used in) investing activities		(26,446)		(53,186)
Net proceeds from senior notes				0
Proceeds from (repayments of) other debt		(52,383)		(61,337)
Excess tax benefits from share-based awards		0		0
Repurchases		0		0
Dividends		(185,862)		(152,223)
Intercompany financing		646,727		763,183
Net cash provided by (used in) financing activities		408,482		549,623
Net (decrease) increase in cash and cash equivalents		(108,151)		(30,921)
Cash and cash equivalents at beginning of period		336,048		252,914
Cash and cash equivalents at end of period		227,897		221,993
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net earnings (including net earnings attributable to noncontrolling interests)		17,515		12,204
Distributions of earnings from subsidiaries		0		0
Adjustments to reconcile net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests) to net cash provided by (used in) operating activities		371,742		(125,654)
Net cash provided by (used in) operating activities		389,257		(113,450)
(Investments in and contributions to) and distributions of capital from unconsolidated entities, net		(2,466)		(6,614)
Proceeds from sales of real estate owned		20,256		28,055
Receipts of principal payments on loans receivable				3,519
Originations of loans receivable		(10,046)
Purchases of commercial mortgage-backed securities bond		23,078
Other		(1,406)		(28,854)
Distributions of capital from subsidiaries		0		0
Intercompany investing		0		0
Net cash provided by (used in) investing activities		(16,740)		(3,894)
Net repayments under warehouse facilities		(395,233)		(29,681)
Net proceeds from senior notes		(684)		(294)
Proceeds from (repayments of) other debt				(81)
Net borrowings (payments) related to noncontrolling interests		(41,950)		(56,327)
Excess tax benefits from share-based awards		0		0
Repurchases		0		0
Dividends		(36,143)		(20,250)
Intercompany financing		52,824		82,757
Net cash provided by (used in) financing activities		(421,855)		(41,375)
Net (decrease) increase in cash and cash equivalents		(49,338)		(158,719)
Cash and cash equivalents at beginning of period		246,576		395,582
Cash and cash equivalents at end of period		197,238		236,863
Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net earnings (including net earnings attributable to noncontrolling interests)		(182,005)		(152,473)
Distributions of earnings from subsidiaries		(182,005)		(152,473)
Adjustments to reconcile net earnings (loss) (including net earnings (loss) attributable to noncontrolling interests) to net cash provided by (used in) operating activities		182,005		152,473
Net cash provided by (used in) operating activities		(182,005)		(152,473)
Proceeds from sales of real estate owned		0		0
Originations of loans receivable		0
Purchases of commercial mortgage-backed securities bond		0
Distributions of capital from subsidiaries		(40,000)		(20,000)
Intercompany investing		699,551		845,940
Net cash provided by (used in) investing activities		659,551		825,940
Net proceeds from senior notes				0
Excess tax benefits from share-based awards		0		0
Repurchases		0		0
Dividends		222,005		172,473
Intercompany financing		(699,551)		(845,940)
Net cash provided by (used in) financing activities		(477,546)		(673,467)
Rialto [Member]
Condensed Financial Statements, Captions [Line Items]
Originations of loans receivable		(315,285)
Principal repayments on Rialto notes payable		(669)		(17,499)
Cash and cash equivalents at beginning of period	[1]	150,219
Cash and cash equivalents at end of period		112,305	[1]	147,219
Rialto [Member] | Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Principal repayments on Rialto notes payable		$ (669)		$ (17,499)

[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 29, 2016, total assets include $582.1 million related to consolidated VIEs of which $11.0 million is included in Lennar Homebuilding cash and cash equivalents, $5.8 million in Lennar Homebuilding receivables, net, $5.5 million in Lennar Homebuilding finished homes and construction in progress, $162.8 million in Lennar Homebuilding land and land under development, $20.3 million in Lennar Homebuilding consolidated inventory not owned, $34.8 million in Lennar Homebuilding investments in unconsolidated entities, $22.3 million in Lennar Homebuilding other assets, $307.4 million in Rialto assets and $12.2 million in Lennar Multifamily assets.As of November 30, 2015, total assets include $652.3 million related to consolidated VIEs of which $9.6 million is included in Lennar Homebuilding cash and cash equivalents, $0.5 million in Lennar Homebuilding receivables, net, $3.9 million in Lennar Homebuilding finished homes and construction in progress, $154.2 million in Lennar Homebuilding land and land under development, $58.9 million in Lennar Homebuilding consolidated inventory not owned, $35.8 million in Lennar Homebuilding investments in unconsolidated entities, $22.7 million in Lennar Homebuilding other assets, $355.2 million in Rialto assets and $11.5 million in Lennar Multifamily assets.