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Segment Information, Nature of Operations, and Certain Concentrations - Interest Expense (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |
Consolidated interest expense | $ 27,740 | $ 39,524 | $ 53,117
Home Building |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |
Consolidated interest expense | 26,875 | 38,140 | 51,530
Mortgage Banking |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |
Consolidated interest expense | 865 | 1,384 | 1,587
Profit before taxes: |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |
Consolidated interest expense | 289,796 | 304,433 | 254,511
Profit before taxes: | Home Building | Mid Atlantic |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |
Consolidated interest expense | 135,679 | 143,322 | 124,385
Profit before taxes: | Home Building | North East |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |
Consolidated interest expense | 33,310 | 30,658 | 25,463
Profit before taxes: | Home Building | Mid East |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |
Consolidated interest expense | 39,021 | 51,384 | 43,695
Profit before taxes: | Home Building | South East |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |
Consolidated interest expense | 80,921 | 77,685 | 59,381
Profit before taxes: | Mortgage Banking |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |
Consolidated interest expense | 865 | 1,384 | 1,587
Reconciling items: |  |  |
Segment Reporting, Other Significant Reconciling Item [Line Items] |  |  |
Consolidated interest expense | 26,749 | 37,995 | 51,393
Corporate capital allocation charge | $ (288,805) | $ (302,904) | $ (252,787)

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