Segment Disclosures - Revenues (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 2,178,277	$ 2,378,409
Home Building Segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	2,131,333	2,309,227
Home Building Segment | Mid Atlantic
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	941,148	1,141,708
Home Building Segment | North East
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	183,430	175,551
Home Building Segment | Mid East
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	402,397	461,405
Home Building Segment | South East
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	604,358	530,563
Mortgage Banking
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 46,944	$ 69,182