Operating and Reporting Segments - Unrealized Gain (Loss) on Investments (Details) - Lennar Other - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2022	Nov. 30, 2021
Segment Reporting Information [Line Items]
Lennar Other unrealized gain (loss) from technology investments	$ (655,094)	$ 510,802
Disposal Group, Held-for-sale, Not Discontinued Operations | Solar Business
Segment Reporting Information [Line Items]
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax	(61,225)	(8,883)
Opendoor
Segment Reporting Information [Line Items]
Lennar Other unrealized gain (loss) from technology investments	(25,630)	(6,744)
Hippo
Segment Reporting Information [Line Items]
Lennar Other unrealized gain (loss) from technology investments	(222,447)	207,634
SmartRent
Segment Reporting Information [Line Items]
Lennar Other unrealized gain (loss) from technology investments	(265,276)	239,312
Sunnova Energy International Inc.
Segment Reporting Information [Line Items]
Lennar Other unrealized gain (loss) from technology investments	(78,177)	79,483
Blend Labs
Segment Reporting Information [Line Items]
Lennar Other unrealized gain (loss) from technology investments	$ (2,339)	$ 0