Segment Disclosures - Revenues (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 2,333,463	$ 2,178,277
Home Building Segment
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	2,286,177	2,131,333
Home Building Segment | Mid Atlantic
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	1,017,471	941,148
Home Building Segment | North East
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	255,669	183,430
Home Building Segment | Mid East
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	416,951	402,397
Home Building Segment | South East
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	596,086	604,358
Mortgage Banking
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenues	$ 47,286	$ 46,944