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Financial Instruments and Fair Value Disclosures - (Reconciliation Of Beginning And Ending Balance For The Company's Level 3 Recurring Fair Value Measurements) (Details) - Lennar Financial Services - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Aug. 31, 2025	Aug. 31, 2024	Aug. 31, 2025	Aug. 31, 2024
Mortgage servicing rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 3,467	$ 3,652	$ 3,463	$ 3,440
Purchases/loan originations	45	174	322	406
Sales/loan originations sold, including those not settled	0	0	0	0
Disposals/settlements	(104)	(122)	(257)	(193)
Changes in fair value	(118)	(338)	(238)	(287)
Interest and principal paydowns	0	0	0	0
Ending balance	3,290	3,366	3,290	3,366
LMF Commercial loans held-for-sale
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	72,203	66,715	50,316	13,459
Purchases/loan originations	177,837	236,665	486,677	449,000
Sales/loan originations sold, including those not settled	(172,643)	(145,325)	(458,466)	(301,610)
Disposals/settlements	0	(9,500)	0	(9,500)
Changes in fair value	483	2,312	(264)	(673)
Interest and principal paydowns	(93)	0	(476)	191
Ending balance	$ 77,787	$ 150,867	$ 77,787	$ 150,867

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