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Financial Instruments and Fair Value Disclosures - (Narrative) (Details) $ in Thousands	9 Months Ended
	Aug. 31, 2025 USD ($) community	Aug. 31, 2024 community
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Active communities | community	1,664	1,283
Write-down of investments in unconsolidated entities	$ 10,700
Lennar Financial Services | Level 3 | Fair Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans held for sale	$ 50,284

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Number of Active Communities

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Amount of other-than-temporary decline in value that has been recognized against investment accounted for under equity method of accounting.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Fair value portion of loans held-for-sale including, but not limited to, mortgage loans and finance receivables.

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