Operating and Reporting Segments - Unrealized Gain (Loss) on Investments (Details) - Lennar Other - Operating Segments - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2025	May 31, 2024	May 31, 2025	May 31, 2024
Segment Reporting Information [Line Items]
Lennar Other realized and unrealized losses from technology investments	$ (29,440)	$ (21,514)	$ (91,943)	$ (26,651)
Realized Investment Gains (Losses)	(28,400)
Blend Labs
Segment Reporting Information [Line Items]
Lennar Other realized and unrealized losses from technology investments	0	715	(3,737)	3,651
Hippo
Segment Reporting Information [Line Items]
Lennar Other realized and unrealized losses from technology investments	(15,462)	10,737	(28,352)	27,186
Opendoor
Segment Reporting Information [Line Items]
Lennar Other realized and unrealized losses from technology investments	(12,921)	(16,907)	(31,707)	(15,592)
SmartRent
Segment Reporting Information [Line Items]
Lennar Other realized and unrealized losses from technology investments	0	(4,609)	(4,483)	(6,572)
Sonder
Segment Reporting Information [Line Items]
Lennar Other realized and unrealized losses from technology investments	0	(40)	(19)	11
Sunnova
Segment Reporting Information [Line Items]
Lennar Other realized and unrealized losses from technology investments	$ (1,057)	$ (11,410)	$ (23,645)	$ (35,335)