Business Transactions - Additional Information (Details)					6 Months Ended
	Jun. 25, 2025 USD ($) Property	May 12, 2025 USD ($)	Feb. 10, 2025 USD ($) Property	Feb. 07, 2025 USD ($) Property $ / shares shares	Jun. 30, 2025 USD ($) $ / shares shares
Business Acquisition [Line Items]
Common stock par value per share | $ / shares					$ 0.01
Deferred tax liabilities					$ 56,913,000
Earnest Money Deposits					4,000,000
Development guarantee holdbacks					100,000,000
Land banking proceeds to acquire amount					$ 858,938,000
Rausch Land Assets
Business Acquisition [Line Items]
Number of homesites | Property			25,000
Deferred tax liabilities			$ 116,700,000
Earnest Money Deposits			7,600,000
Cash payment received from acquisition			858,900,000
Option deposits			90,300,000
Development guarantee holdbacks			$ 100,000,000
Landsea Homes | Agreement with New Home Company
Business Acquisition [Line Items]
Number of homesites | Property	4,186
Cash payment received from acquisition	$ 494,500,000
Land banking proceeds to acquire amount	494,500,000
Acquisition in land assets	522,800,000
Option contract to acquire business	$ 28,300,000
Landsea Homes | Maximum | Agreement with New Home Company
Business Acquisition [Line Items]
Land banking proceeds to acquire amount		$ 700,000,000
Rausch Coleman Companies, LLC
Business Acquisition [Line Items]
Number of homesites | Property			25,000
Percentage of interest acquired			100.00%
Cash payment received from acquisition			$ 859,000,000
Acquisition in land assets			$ 1,158,000,000
Class A Common Stock
Business Acquisition [Line Items]
Common stock par value per share | $ / shares					$ 0.01
Class B Common Stock
Business Acquisition [Line Items]
Common stock par value per share | $ / shares					$ 0.01
Lennar Corporation
Business Acquisition [Line Items]
Percentage of ownership interest after disposal				20.00%
Spin-Off
Business Acquisition [Line Items]
Stockholders equity for contributions				$ 5,200,000,000
Spin-Off | Lennar Corporation
Business Acquisition [Line Items]
Percentage of ownership interest sold				80.00%
Common stock issued, Spin-Off				$ 1,300,000
Retained shares | shares				33,200,053
Land assets				$ 5,500,000,000
Number of homesites | Property				87,000
Cash				$ 1,000,000,000
Cash deposits				584,800,000
Liabilities for seller notes				19,000,000
Liabilities for prepaid due diligence costs				77,900,000
Deferred tax asset				59,800,000
Stockholders equity for contributions				5,900,000,000
Spin-Off related costs				$ 77,900,000
Spin-Off | Lennar Corporation | Class A Common Stock
Business Acquisition [Line Items]
Distribution of common stock | shares				120,983,633	120,983,633
Common stock par value per share | $ / shares				$ 0.01
Common stock issued, Spin-Off				$ 300,000
Retained shares | shares				33,200,053	33,200,053
Spin-Off | Lennar Corporation | Class B Common Stock
Business Acquisition [Line Items]
Distribution of common stock | shares				11,819,811	11,819,811
Common stock par value per share | $ / shares				$ 0.01