Variable Interest Entities ("VIEs") - Total Risk of Loss Related to Contract Land Deposits (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure [Abstract]
Contract land deposits	$ 580,353	$ 553,140
Loss reserve on contract land deposits	(50,183)	(57,060)
Contract land deposits, net	530,170	496,080
Contingent obligations in the form of letters of credit		6,896
Total risk of loss	537,452	$ 502,976
Letters of credit related to lots	$ 7,282