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Segment Information, Nature of Operations, and Certain Concentrations - Profit before Taxes (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | $ 1,928,373 | $ 2,253,194 | $ 1,590,403
Equity-based compensation expense (2) | (99,507) | (82,537) | (58,234)
Corporate interest expense | (27,740) | (39,524) | (53,117)
Home Building |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 1,795,580 | 2,131,044 | 1,418,799
Corporate interest expense | (26,875) | (38,140) | (51,530)
Mortgage Banking |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 132,793 | 122,150 | 171,604
Corporate interest expense | (865) | (1,384) | (1,587)
Profit before taxes: |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 1,751,051 | 2,197,382 | 1,618,362
Corporate interest expense | (289,796) | (304,433) | (254,511)
Profit before taxes: | Home Building | Mid Atlantic |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 745,323 | 994,027 | 734,941
Corporate interest expense | (135,679) | (143,322) | (124,385)
Profit before taxes: | Home Building | North East |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 169,012 | 157,333 | 105,432
Corporate interest expense | (33,310) | (30,658) | (25,463)
Profit before taxes: | Home Building | Mid East |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 257,865 | 343,236 | 271,756
Corporate interest expense | (39,021) | (51,384) | (43,695)
Profit before taxes: | Home Building | South East |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 440,538 | 577,030 | 329,982
Corporate interest expense | (80,921) | (77,685) | (59,381)
Profit before taxes: | Mortgage Banking |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 138,313 | 125,756 | 176,251
Corporate interest expense | (865) | (1,384) | (1,587)
Reconciling items: |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 177,322 | 55,812 | (27,959)
Contract land deposit reserve adjustment | 3,279 | (27,300) | 22,163
Equity-based compensation expense (2) | (99,507) | (82,537) | (58,234)
Corporate capital allocation charge | 288,805 | 302,904 | 252,787
Unallocated corporate overhead | (175,208) | (129,998) | (139,611)
Consolidation adjustments and other (4) | 44,619 | (1,719) | (56,511)
Corporate interest income | 142,083 | 32,457 | 2,840
Corporate interest expense | $ (26,749) | $ (37,995) | $ (51,393)

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