Commitments and Contingencies - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) lot thirdPartyGuarantee	Dec. 31, 2022 USD ($)
Loss Contingencies [Line Items]
Surety bonds, outstanding, amount	$ 311.0
Letters of credit outstanding, amount	118.3
Estimated cost related to letters of credit	107.1
Estimated cost related to bonds	$ 62.4
Number of guarantees related to third parties | thirdPartyGuarantee	0
Estimated litigation liability	$ 0.3	$ 1.2
Number of lots | lot	4,416
Option Contracts
Loss Contingencies [Line Items]
Letters of credit outstanding, amount	$ 8.0
Deposits	25.7
HomeAmerican
Loss Contingencies [Line Items]
Surety bonds, outstanding, amount	$ 77.5