Related Party Transactions - Additional Information (Detail) - Elm Street $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) lot numberOfRelatedParties	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Related Party Transaction [Line Items]
Related party forward lot purchase agreements purchase price	$ 189,000
Number of related parties for forward lot purchase agreement | numberOfRelatedParties	1
Market price of developed lots	$ 43,700	$ 60,200	$ 44,600
Expected number of lots from joint venture with Elm Street | lot	1,600