Supplemental Financial Information (Condensed Consolidating Statement of Cash Flows) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2016	Aug. 31, 2015
Cash flows from operating activities:
Net earnings (including net earnings attributable to noncontrolling interests)	$ 233,131	$ 225,037	$ 602,621	$ 526,538
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			(605,701)	(1,614,952)
Net cash used in operating activities			(3,080)	(1,088,414)
Cash flows from investing activities:
Proceeds from the sale of operating properties and equipment			17,450	73,732
Investments in and contributions to unconsolidated entities, net of distributions of capital			(110,227)	(36,562)
Proceeds from sales of real estate owned			66,638	88,565
Receipts of principal payments on loans receivable and other			57,733	14,225
Originations/purchases of loans receivable			(56,507)	(22,545)
Purchases of commercial mortgage-backed securities bonds			(33,005)	0
Other			(58,757)	(155,641)
Distributions of capital from guarantor and non-guarantor subsidiaries			0	0
Intercompany			0	0
Net cash used in investing activities			(116,675)	(15,681)
Cash flows from financing activities:
Redemption of senior notes			(250,000)	(500,000)
Conversions and exchanges on convertible senior notes			(233,893)	(168,854)
Net proceeds (payments) on other borrowings			(99,804)	(145,020)
Net payments related to noncontrolling interests			(97,912)	(104,355)
Excess tax benefits from share-based awards			7,039	113
Common stock:
Issuances			19,471	9,406
Repurchases			(19,871)	(23,133)
Dividends			(26,222)	(24,765)
Intercompany			0	0
Net cash (used in) provided by financing activities			(222,595)	627,575
Net decrease in cash and cash equivalents			(342,350)	(476,520)
Cash and cash equivalents at beginning of period			1,158,445	1,281,814
Cash and cash equivalents at end of period	816,095	805,294	816,095	805,294
Rialto
Cash flows from financing activities:
Principal payments on Rialto notes payable including structured notes			(4,121)	(28,247)
Common stock:
Cash and cash equivalents at beginning of period			150,219
Cash and cash equivalents at end of period	133,103		133,103
Senior Notes
Cash flows from financing activities:
Proceeds from senior notes and debt issuance costs			495,043	743,415
Unsecured Revolving Credit Facility
Cash flows from financing activities:
Net (repayments) borrowings under credit facilities			125,000	575,000
Warehouse Repurchase Facility
Cash flows from financing activities:
Net (repayments) borrowings under credit facilities			(137,325)	294,015
Reportable Legal Entities | Lennar Corporation
Cash flows from operating activities:
Net earnings (including net earnings attributable to noncontrolling interests)	235,842	223,312	598,391	521,291
Distributions of earnings from guarantor and non-guarantor subsidiaries			710,016	621,818
Other adjustments to reconcile net earnings (including net earnings attributable to noncontrolling interests) to net cash provided by (used in) operating activities			(712,476)	(594,735)
Net cash used in operating activities			595,931	548,374
Cash flows from investing activities:
Proceeds from the sale of operating properties and equipment			0	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/purchases of loans receivable			0
Purchases of commercial mortgage-backed securities bonds			0
Other			(8,836)	(26,189)
Distributions of capital from guarantor and non-guarantor subsidiaries			40,000	75,000
Intercompany			(956,734)	(1,470,225)
Net cash used in investing activities			(925,570)	(1,421,414)
Cash flows from financing activities:
Redemption of senior notes			(250,000)	(500,000)
Conversions and exchanges on convertible senior notes			(233,893)	(168,854)
Net proceeds (payments) on other borrowings			0	20,746
Net payments related to noncontrolling interests			0	0
Excess tax benefits from share-based awards			7,039	113
Common stock:
Issuances			19,471	9,406
Repurchases			(19,871)	(23,133)
Dividends			(26,222)	(24,765)
Intercompany			0	0
Net cash (used in) provided by financing activities			117,498	632,922
Net decrease in cash and cash equivalents			(212,141)	(240,118)
Cash and cash equivalents at beginning of period			575,821	633,318
Cash and cash equivalents at end of period	363,680	393,200	363,680	393,200
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 | Lennar Corporation | Senior Notes
Cash flows from financing activities:
Proceeds from senior notes and debt issuance costs			495,974	744,409
Reportable Legal Entities | Lennar Corporation | Unsecured Revolving Credit Facility
Cash flows from financing activities:
Net (repayments) borrowings under credit facilities			125,000	575,000
Reportable Legal Entities | Lennar Corporation | Warehouse Repurchase Facility
Cash flows from financing activities:
Net (repayments) borrowings under credit facilities			0	0
Reportable Legal Entities | Guarantor Subsidiaries
Cash flows from operating activities:
Net earnings (including net earnings attributable to noncontrolling interests)	270,501	256,668	684,256	614,966
Distributions of earnings from guarantor and non-guarantor subsidiaries			42,297	38,033
Other adjustments to reconcile net earnings (including net earnings attributable to noncontrolling interests) to net cash provided by (used in) operating activities			(707,332)	(1,090,481)
Net cash used in operating activities			19,221	(437,482)
Cash flows from investing activities:
Proceeds from the sale of operating properties and equipment			17,450	0
Investments in and contributions to unconsolidated entities, net of distributions of capital			(100,475)	(17,833)
Proceeds from sales of real estate owned			0	0
Receipts of principal payments on loans receivable and other			0	0
Originations/purchases of loans receivable			0
Purchases of commercial mortgage-backed securities bonds			0
Other			(41,120)	(47,141)
Distributions of capital from guarantor and non-guarantor subsidiaries			40,000	75,050
Intercompany			0	0
Net cash used in investing activities			(84,145)	10,076
Cash flows from financing activities:
Redemption of senior notes			0	0
Conversions and exchanges on convertible senior notes			0	0
Net proceeds (payments) on other borrowings			(99,804)	(96,265)
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			(724,256)	(689,966)
Intercompany			782,877	1,169,960
Net cash (used in) provided by financing activities			(41,042)	383,729
Net decrease in cash and cash equivalents			(105,966)	(43,677)
Cash and cash equivalents at beginning of period			336,048	252,914
Cash and cash equivalents at end of period	230,082	209,237	230,082	209,237
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 | Guarantor Subsidiaries | Senior Notes
Cash flows from financing activities:
Proceeds from senior notes and debt issuance costs			0	0
Reportable Legal Entities | Guarantor Subsidiaries | Unsecured Revolving Credit Facility
Cash flows from financing activities:
Net (repayments) borrowings under credit facilities			0	0
Reportable Legal Entities | Guarantor Subsidiaries | Warehouse Repurchase Facility
Cash flows from financing activities:
Net (repayments) borrowings under credit facilities			141	0
Reportable Legal Entities | Non-Guarantor Subsidiaries
Cash flows from operating activities:
Net earnings (including net earnings attributable to noncontrolling interests)	26,180	25,116	72,287	50,132
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			61,794	(589,587)
Net cash used in operating activities			134,081	(539,455)
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			(9,752)	(18,729)
Proceeds from sales of real estate owned			66,638	88,565
Receipts of principal payments on loans receivable and other			57,733	14,225
Originations/purchases of loans receivable			(56,507)
Purchases of commercial mortgage-backed securities bonds			(33,005)
Other			(8,801)	(82,311)
Distributions of capital from guarantor and non-guarantor subsidiaries			0	0
Intercompany			0	0
Net cash used in investing activities			16,306	75,482
Cash flows from financing activities:
Redemption of senior notes			0	0
Conversions and exchanges on convertible senior notes			0	0
Net proceeds (payments) on other borrowings				(69,501)
Net payments related to noncontrolling interests			(97,912)	(104,355)
Excess tax benefits from share-based awards			0	0
Common stock:
Issuances			0	0
Repurchases			0	0
Dividends			(108,057)	(119,935)
Intercompany			173,857	300,265
Net cash (used in) provided by financing activities			(174,630)	271,248
Net decrease in cash and cash equivalents			(24,243)	(192,725)
Cash and cash equivalents at beginning of period			246,576	395,582
Cash and cash equivalents at end of period	222,333	202,857	222,333	202,857
Reportable Legal Entities | Non-Guarantor Subsidiaries | Rialto
Cash flows from financing activities:
Principal payments on Rialto notes payable including structured notes			(4,121)	(28,247)
Reportable Legal Entities | Non-Guarantor Subsidiaries | Senior Notes
Cash flows from financing activities:
Proceeds from senior notes and debt issuance costs			(931)	(994)
Reportable Legal Entities | Non-Guarantor Subsidiaries | Unsecured Revolving Credit Facility
Cash flows from financing activities:
Net (repayments) borrowings under credit facilities			0	0
Reportable Legal Entities | Non-Guarantor Subsidiaries | Warehouse Repurchase Facility
Cash flows from financing activities:
Net (repayments) borrowings under credit facilities			(137,466)	294,015
Consolidating Adjustments
Cash flows from operating activities:
Net earnings (including net earnings attributable to noncontrolling interests)	(299,392)	(280,059)	(752,313)	(659,851)
Distributions of earnings from guarantor and non-guarantor subsidiaries			(752,313)	(659,851)
Other adjustments to reconcile net earnings (including net earnings attributable to noncontrolling interests) to net cash provided by (used in) operating activities			752,313	659,851
Net cash used in operating activities			(752,313)	(659,851)
Cash flows from investing activities:
Proceeds from the sale of operating properties and equipment			0	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/purchases 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)	(150,050)
Intercompany			956,734	1,470,225
Net cash used in investing activities			876,734	1,320,175
Cash flows from financing activities:
Redemption of senior notes			0	0
Conversions and exchanges on convertible senior notes			0	0
Net proceeds (payments) 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			832,313	809,901
Intercompany			(956,734)	(1,470,225)
Net cash (used in) provided by financing activities			(124,421)	(660,324)
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
Consolidating Adjustments | Senior Notes
Cash flows from financing activities:
Proceeds from senior notes and debt issuance costs			0	0
Consolidating Adjustments | Unsecured Revolving Credit Facility
Cash flows from financing activities:
Net (repayments) borrowings under credit facilities			0	0
Consolidating Adjustments | Warehouse Repurchase Facility
Cash flows from financing activities:
Net (repayments) borrowings under credit facilities			$ 0	$ 0