Commitments and Contingencies - Surety Bonds and Letters of Credit and Backlog (Details) $ in Millions	Apr. 30, 2025 USD ($) home
Backlog Information
Number of homes to be delivered | home	6,063
Aggregate sales value of outstanding homes to be delivered	$ 6,840.0
Feb 2023 Revolving Credit Facility Extension Agreement
Loss Contingencies [Line Items]
Outstanding letter of credit	159.0
Other Letter Of Credit Facility
Loss Contingencies [Line Items]
Outstanding letter of credit	6.3
Surety Bond Construction Improvements
Loss Contingencies [Line Items]
Surety bonds outstanding amount	866.0
Surety Bond Other Obligations
Loss Contingencies [Line Items]
Additional outstanding surety bonds	402.6
Financial Guarantee
Loss Contingencies [Line Items]
Surety bonds outstanding amount	$ 61.9