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Financial Instruments and Fair Value Disclosure (Fair Value Assets Measured On Nonrecurring Basis) (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2022
Homebuilding
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Inventory write-down	$ 5,100	$ 19,900
Fair Value, Measurements, Nonrecurring | Homebuilding | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Finished homes and construction in progress, carrying value	516,081	458,569	$ 347,300
Finished homes and construction in progress, fair value	467,946	396,795	295,663
Finished homes and construction in progress, total gains and losses	(48,135)	(61,774)	(51,637)
Land and land under development, carrying value	0	52,147	135,844
Land and land under development, fair value	0	49,539	126,135
Land and land under development, total gains (losses)	0	(2,608)	(9,709)
Deposits And Pre-acquisition Costs On Real Estate, Carrying Value	5,120	19,914	47,893
Deposits And Pre-acquisition Costs On Real Estate, Fair Value	0	0	0
Deposits And Pre-acquisition Costs On Real Estate, Net	(5,120)	(19,914)	(47,893)
Fair Value, Measurements, Nonrecurring | Homebuilding | Level 3 | Equity Method Investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, Fair Value Adjustment	0	(41,042)	(1,454)
Fair Value, Measurements, Nonrecurring | Homebuilding | Level 3 | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of equity investment	0	78,834	(1,454)
Fair Value, Measurements, Nonrecurring | Homebuilding | Level 3 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of equity investment	0	(37,792)	0
Fair Value, Measurements, Nonrecurring | Lennar Other | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
REO - held-for-sale upon acquisition/transfer, carrying value	139,980	0	0
REO - held-for-sale upon acquisition/transfer, fair value	49,970	0	0
REO - held-for-sale upon acquisition/transfer, total gains (losses)	(90,010)	0	0
REO - held-for-sale upon management periodic valuations, carrying value	24,753	0	0
REO - held-for-sale upon management periodic valuations, fair value	0	0	0
REO - held-for-sale upon management periodic valuations, total gains (losses)	$ (24,753)	$ 0	$ 0

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Fair value portion of investments accounted under the equity method.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
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-Name Accounting Standards Codification
-Section 50
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-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E

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-Topic 330
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