Supplemental Financial Information (Condensed Consolidating Statement of Cash Flows) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2019	May 31, 2018	May 31, 2019	May 31, 2018
Cash flows from operating activities:
Net earnings (including net earnings (loss) attributable to noncontrolling interests)	$ 418,869	$ 314,849	$ 658,293	$ 451,666
Distributions of earnings from guarantor and non-guarantor subsidiaries			0	0
Other adjustments to reconcile net earnings (including net loss attributable to noncontrolling interests) to net cash provided by operating activities			(1,088,183)	(432,152)
Net cash (used in) provided by operating activities			(429,890)	19,514
Cash flows from investing activities:
Investments in and contributions to unconsolidated entities, net of distributions of capital			(87,336)	9,970
Proceeds from sales of real estate owned			4,210	21,658
Proceeds from sale of investment in unconsolidated entity			17,790	175,179
Purchases of commercial mortgage-backed securities bonds			0	(31,068)
Proceeds from sale of investment in unconsolidated entity			17,790
Proceeds from sale of Financial Services' businesses			24,446	0
Acquisitions, net of cash and restricted cash acquired			0	(1,077,964)
Other			(50,696)	(49,089)
Distributions of capital from guarantor and non-guarantor subsidiaries				0
Intercompany			0	0
Net cash used in investing activities			(91,586)	(951,314)
Cash flows from financing activities:
Debt issuance costs			0	(12,101)
Redemption of senior notes			0	(575,000)
Net payments on other borrowings, other liabilities, Lennar Other senior notes and other notes payable			(97,395)	(348,045)
Net repayments related to noncontrolling interests			(14,380)	(26,530)
Common stock:
Issuances			634	3,184
Repurchases			(101,229)	(28,526)
Dividends			(25,877)	(22,780)
Intercompany			0	0
Net cash used in financing activities			(53,431)	(565,933)
Net decrease in cash and cash equivalents and restricted cash			(574,907)	(1,497,733)
Cash and cash equivalents and restricted cash at beginning of period			1,595,978	2,694,084
Cash and cash equivalents and restricted cash at end of period	1,021,071	1,196,351	1,021,071	1,196,351
Unsecured Revolving Credit Facility
Cash flows from financing activities:
Net borrowings under credit facilities			550,000	495,300
Warehouse Repurchase Facility
Cash flows from financing activities:
Net borrowings under credit facilities			(365,184)	7,710
Reportable Legal Entities | Lennar Corporation
Cash flows from operating activities:
Net earnings (including net earnings (loss) attributable to noncontrolling interests)	421,472	310,257	661,382	446,472
Distributions of earnings from guarantor and non-guarantor subsidiaries			775,772	543,922
Other adjustments to reconcile net earnings (including net loss attributable to noncontrolling interests) to net cash provided by operating activities			(819,869)	(712,549)
Net cash (used in) provided by operating activities			617,285	277,845
Cash flows from investing activities:
Investments in and contributions to unconsolidated entities, net of distributions of capital			0	0
Proceeds from sales of real estate owned			0	0
Proceeds from sale of investment in unconsolidated entity				0
Purchases of commercial mortgage-backed securities bonds				0
Proceeds from sale of investment in unconsolidated entity			0
Proceeds from sale of Financial Services' businesses			0
Acquisitions, net of cash and restricted cash acquired				(1,140,367)
Other			(170)	(21,568)
Distributions of capital from guarantor and non-guarantor subsidiaries				65,000
Intercompany			(1,263,527)	(1,034,631)
Net cash used in investing activities			(1,263,697)	(2,131,566)
Cash flows from financing activities:
Redemption of senior notes				(484,332)
Net payments on other borrowings, other liabilities, Lennar Other senior notes and other notes payable			0	0
Net repayments related to noncontrolling interests			0	0
Common stock:
Issuances			634	3,184
Repurchases			(101,229)	(28,526)
Dividends			(25,877)	(22,780)
Intercompany			0	0
Net cash used in financing activities			423,528	408,437
Net decrease in cash and cash equivalents and restricted cash			(222,884)	(1,445,284)
Cash and cash equivalents and restricted cash at beginning of period			624,694	1,938,555
Cash and cash equivalents and restricted cash at end of period	401,810	493,271	401,810	493,271
Reportable Legal Entities | Lennar Corporation | Unsecured Revolving Credit Facility
Cash flows from financing activities:
Net borrowings under credit facilities			550,000	950,000
Reportable Legal Entities | Lennar Corporation | Warehouse Repurchase Facility
Cash flows from financing activities:
Net borrowings under credit facilities			0	0
Reportable Legal Entities | Guarantor Subsidiaries
Cash flows from operating activities:
Net earnings (including net earnings (loss) attributable to noncontrolling interests)	475,766	359,786	765,109	526,835
Distributions of earnings from guarantor and non-guarantor subsidiaries			33,476	38,918
Other adjustments to reconcile net earnings (including net loss attributable to noncontrolling interests) to net cash provided by operating activities			(1,222,713)	(107,511)
Net cash (used in) provided by operating activities			(424,128)	458,242
Cash flows from investing activities:
Investments in and contributions to unconsolidated entities, net of distributions of capital			(99,052)	24,013
Proceeds from sales of real estate owned			0	0
Proceeds from sale of investment in unconsolidated entity				175,179
Purchases of commercial mortgage-backed securities bonds				0
Proceeds from sale of investment in unconsolidated entity			0
Proceeds from sale of Financial Services' businesses			21,317
Acquisitions, net of cash and restricted cash acquired				23,035
Other			(30,185)	(5,933)
Distributions of capital from guarantor and non-guarantor subsidiaries				20,000
Intercompany			0	0
Net cash used in investing activities			(107,920)	236,294
Cash flows from financing activities:
Redemption of senior notes				(90,668)
Net payments on other borrowings, other liabilities, Lennar Other senior notes and other notes payable			(101,052)	(52,999)
Net repayments related to noncontrolling interests			0	0
Common stock:
Issuances			0	0
Repurchases			0	0
Dividends			(765,109)	(591,835)
Intercompany			1,057,135	624,070
Net cash used in financing activities			191,144	(625,331)
Net decrease in cash and cash equivalents and restricted cash			(340,904)	69,205
Cash and cash equivalents and restricted cash at beginning of period			721,603	366,946
Cash and cash equivalents and restricted cash at end of period	380,699	436,151	380,699	436,151
Reportable Legal Entities | Guarantor Subsidiaries | Unsecured Revolving Credit Facility
Cash flows from financing activities:
Net borrowings under credit facilities			0	(454,700)
Reportable Legal Entities | Guarantor Subsidiaries | Warehouse Repurchase Facility
Cash flows from financing activities:
Net borrowings under credit facilities			170	(54)
Reportable Legal Entities | Non-Guarantor Subsidiaries
Cash flows from operating activities:
Net earnings (including net earnings (loss) attributable to noncontrolling interests)	27,696	48,808	41,050	61,199
Distributions of earnings from guarantor and non-guarantor subsidiaries			0	0
Other adjustments to reconcile net earnings (including net loss attributable to noncontrolling interests) to net cash provided by operating activities			145,151	(194,932)
Net cash (used in) provided by operating activities			186,201	(133,733)
Cash flows from investing activities:
Investments in and contributions to unconsolidated entities, net of distributions of capital			11,716	(14,043)
Proceeds from sales of real estate owned			4,210	21,658
Proceeds from sale of investment in unconsolidated entity				0
Purchases of commercial mortgage-backed securities bonds				(31,068)
Proceeds from sale of investment in unconsolidated entity			17,790
Proceeds from sale of Financial Services' businesses			3,129
Acquisitions, net of cash and restricted cash acquired				39,368
Other			(20,341)	(21,588)
Distributions of capital from guarantor and non-guarantor subsidiaries				0
Intercompany			0	0
Net cash used in investing activities			16,504	(5,673)
Cash flows from financing activities:
Redemption of senior notes				0
Net payments on other borrowings, other liabilities, Lennar Other senior notes and other notes payable			3,657	(295,046)
Net repayments related to noncontrolling interests			(14,380)	(26,530)
Common stock:
Issuances			0	0
Repurchases			0	0
Dividends			(44,139)	(76,005)
Intercompany			206,392	410,561
Net cash used in financing activities			(213,824)	17,752
Net decrease in cash and cash equivalents and restricted cash			(11,119)	(121,654)
Cash and cash equivalents and restricted cash at beginning of period			249,681	388,583
Cash and cash equivalents and restricted cash at end of period	238,562	266,929	238,562	266,929
Reportable Legal Entities | Non-Guarantor Subsidiaries | Unsecured Revolving Credit Facility
Cash flows from financing activities:
Net borrowings under credit facilities			0	0
Reportable Legal Entities | Non-Guarantor Subsidiaries | Warehouse Repurchase Facility
Cash flows from financing activities:
Net borrowings under credit facilities			(365,354)	7,764
Consolidating Adjustments
Cash flows from operating activities:
Net earnings (including net earnings (loss) attributable to noncontrolling interests)	(506,065)	(404,002)	(809,248)	(582,840)
Distributions of earnings from guarantor and non-guarantor subsidiaries			(809,248)	(582,840)
Other adjustments to reconcile net earnings (including net loss attributable to noncontrolling interests) to net cash provided by operating activities			809,248	582,840
Net cash (used in) provided by operating activities			(809,248)	(582,840)
Cash flows from investing activities:
Investments in and contributions to unconsolidated entities, net of distributions of capital			0	0
Proceeds from sales of real estate owned			0	0
Proceeds from sale of investment in unconsolidated entity				0
Purchases of commercial mortgage-backed securities bonds				0
Proceeds from sale of investment in unconsolidated entity			0
Proceeds from sale of Financial Services' businesses			0
Acquisitions, net of cash and restricted cash acquired				0
Other			0	0
Distributions of capital from guarantor and non-guarantor subsidiaries				(85,000)
Intercompany			1,263,527	1,034,631
Net cash used in investing activities			1,263,527	949,631
Cash flows from financing activities:
Redemption of senior notes				0
Net payments on other borrowings, other liabilities, Lennar Other senior notes and other notes payable			0	0
Net repayments related to noncontrolling interests			0	0
Common stock:
Issuances			0	0
Repurchases			0	0
Dividends			809,248	667,840
Intercompany			(1,263,527)	(1,034,631)
Net cash used in financing activities			(454,279)	(366,791)
Net decrease in cash and cash equivalents and restricted cash			0	0
Cash and cash equivalents and restricted cash at beginning of period			0	0
Cash and cash equivalents and restricted cash at end of period	$ 0	$ 0	0	0
Consolidating Adjustments | Unsecured Revolving Credit Facility
Cash flows from financing activities:
Net borrowings under credit facilities			0	0
Consolidating Adjustments | Warehouse Repurchase Facility
Cash flows from financing activities:
Net borrowings under credit facilities			$ 0	0
Senior Notes
Cash flows from financing activities:
Debt issuance costs				(12,101)
Senior Notes | Reportable Legal Entities | Lennar Corporation
Cash flows from financing activities:
Debt issuance costs				(9,109)
Senior Notes | Reportable Legal Entities | Guarantor Subsidiaries
Cash flows from financing activities:
Debt issuance costs				0
Senior Notes | Reportable Legal Entities | Non-Guarantor Subsidiaries
Cash flows from financing activities:
Debt issuance costs				(2,992)
Senior Notes | Consolidating Adjustments
Cash flows from financing activities:
Debt issuance costs				$ 0