Inventory and Capitalized Interest Other Inventory Items - Homes under construction not subject to a sale contract (Details) $ in Millions	Dec. 31, 2022 USD ($) homes	Dec. 31, 2021 USD ($) homes
Other Inventory, Gross [Abstract]
Number of Speculative Homes | homes	1,827	1,266
Speculative Homes Carrying Value | $	$ 431.7	$ 193.2