Operating and Reporting Segments - Unrealized Gain (Loss) on Investments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2026	May 31, 2025	May 31, 2026	May 31, 2025
Segment Reporting Information [Line Items]
Lennar Other losses from technology investments	$ (23,252)	$ (29,440)	$ (8,414)	$ (91,943)
Lennar Other
Segment Reporting Information [Line Items]
Lennar Other losses from technology investments	(23,252)	(29,440)	(8,414)	(91,943)
Lennar Other | Operating Segments
Segment Reporting Information [Line Items]
Lennar Other losses from technology investments	$ (23,252)	$ (29,440)	$ (8,414)	$ (91,943)