Related Party Transactions - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Nov. 28, 2025
Related Party Transaction [Line Items]
Management fee paid	$ 87,751,000
Lennar
Related Party Transaction [Line Items]
Percentage of shares owned by Lennar		20.00%
Lennar Corporation
Related Party Transaction [Line Items]
Cash payments	452,900,000
Payments for land purchases	2,000,000,000
Option deposits	171,700,000
Payments for land draws	1,300,000,000
Cash payments from related party upon exercise of homesite purchase options	3,100,000,000
Option deposit credits from related party upon exercise of homesite purchase options	127,500,000
Reimbursements of S4 exchange offer expenses	2,000,000
Homesites	6,900,000,000
Option deposit liabilities	$ 726,700,000
Total Revenues	84.00%
Percentage of total option fee revenue	88.00%
Lennar Corporation | Master Program Agreement
Related Party Transaction [Line Items]
Percentage of total option fee revenue	85.00%
KL
Related Party Transaction [Line Items]
Management fee paid	$ 87,800,000
Amounts receivable	$ 0