Operating and Reporting Segments - Unrealized Gain (Loss) on Investments (Details) - Lennar Other - Operating Segments - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2025	Feb. 29, 2024
Segment Reporting Information [Line Items]
Lennar Other realized and unrealized losses from technology investments	$ (62,503)	$ (5,137)
Realized Investment Gains (Losses)	(28,400)
Blend Labs
Segment Reporting Information [Line Items]
Lennar Other realized and unrealized losses from technology investments	(3,737)	2,936
Hippo
Segment Reporting Information [Line Items]
Lennar Other realized and unrealized losses from technology investments	(12,890)	16,449
Opendoor
Segment Reporting Information [Line Items]
Lennar Other realized and unrealized losses from technology investments	(18,786)	1,315
SmartRent
Segment Reporting Information [Line Items]
Lennar Other realized and unrealized losses from technology investments	(4,483)	(1,963)
Sonder
Segment Reporting Information [Line Items]
Lennar Other realized and unrealized losses from technology investments	(19)	51
Sunnova
Segment Reporting Information [Line Items]
Lennar Other realized and unrealized losses from technology investments	$ (22,588)	$ (23,925)