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Segment Information, Nature of Operations, and Certain Concentrations - Revenues (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting, Revenue Reconciling Item [Line Items]
Consolidated revenues	$ 10,526,434	$ 8,951,025	$ 7,536,923
Home Building
Segment Reporting, Revenue Reconciling Item [Line Items]
Consolidated revenues	10,326,770	8,701,693	7,328,889
Home Building | Mid Atlantic
Segment Reporting, Revenue Reconciling Item [Line Items]
Consolidated revenues	4,766,329	4,049,871	3,668,542
Home Building | North East
Segment Reporting, Revenue Reconciling Item [Line Items]
Consolidated revenues	892,543	767,828	538,772
Home Building | Mid East
Segment Reporting, Revenue Reconciling Item [Line Items]
Consolidated revenues	2,147,262	1,891,729	1,524,667
Home Building | South East
Segment Reporting, Revenue Reconciling Item [Line Items]
Consolidated revenues	2,520,636	1,992,265	1,596,908
Mortgage Banking
Segment Reporting, Revenue Reconciling Item [Line Items]
Consolidated revenues	$ 199,664	$ 249,332	$ 208,034

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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