Commitments and Contingencies (Details) $ in Millions		3 Months Ended
	Mar. 10, 2026 USD ($)	Mar. 31, 2026 USD ($) lot thirdPartyGuarantee	Dec. 31, 2025 USD ($)
Loss Contingencies [Line Items]
Letters of credit outstanding, amount		$ 140.4
Surety bonds, outstanding, amount		760.8
Estimated cost related to bonds		368.0
Estimated cost related to letters of credit		$ 115.9
Number of guarantees related to third parties | thirdPartyGuarantee		0
Estimated litigation liability	$ 25.0
Number of lots | lot		8,724
Option Contracts
Loss Contingencies [Line Items]
Letters of credit outstanding, amount		$ 9.1
Deposits		78.6
HomeAmerican
Loss Contingencies [Line Items]
Surety bonds, outstanding, amount		110.8
LOC Facility
Loss Contingencies [Line Items]
Maximum borrowing capacity		50.0
Letters of credit outstanding, amount		$ 6.3	$ 9.7