Segment Information , Nature of Operations, and Certain Concentrations - Cost of Sales (Detail) - Home Building - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting, Other Significant Reconciling Item [Line Items]
Cost of sales	$ (7,953,401)	$ (7,850,549)	$ (7,051,198)
Mid Atlantic
Segment Reporting, Other Significant Reconciling Item [Line Items]
Cost of sales	(3,352,548)	(3,318,299)	(3,165,964)
North East
Segment Reporting, Other Significant Reconciling Item [Line Items]
Cost of sales	(895,669)	(862,223)	(704,654)
Mid East
Segment Reporting, Other Significant Reconciling Item [Line Items]
Cost of sales	(1,479,047)	(1,447,286)	(1,350,843)
South East
Segment Reporting, Other Significant Reconciling Item [Line Items]
Cost of sales	$ (2,160,303)	$ (2,206,202)	$ (1,823,002)

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.