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Segment Information, Nature of Operations, and Certain Concentrations - Profit before Taxes (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | $ 2,253,194 | $ 1,590,403 | $ 1,078,033
Equity-based compensation expense (2) | (82,537) | (58,234) | (50,794)
Corporate interest expense | (39,524) | (53,117) | (40,872)
Home Building |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 2,131,044 | 1,418,799 | 937,960
Corporate interest expense | (38,140) | (51,530) | (39,458)
Mortgage Banking |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 122,150 | 171,604 | 140,073
Corporate interest expense | (1,384) | (1,587) | (1,414)
Profit before taxes: |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 2,197,382 | 1,618,362 | 1,005,479
Corporate interest expense | (304,433) | (254,511) | (240,749)
Profit before taxes: | Home Building | Mid Atlantic |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 994,027 | 734,941 | 437,849
Corporate interest expense | (143,322) | (124,385) | (124,486)
Profit before taxes: | Home Building | North East |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 157,333 | 105,432 | 50,677
Corporate interest expense | (30,658) | (25,463) | (22,859)
Profit before taxes: | Home Building | Mid East |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 343,236 | 271,756 | 168,605
Corporate interest expense | (51,384) | (43,695) | (40,261)
Profit before taxes: | Home Building | South East |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 577,030 | 329,982 | 205,029
Corporate interest expense | (77,685) | (59,381) | (51,729)
Profit before taxes: | Mortgage Banking |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 125,756 | 176,251 | 143,319
Corporate interest expense | (1,384) | (1,587) | (1,414)
Reconciling items: |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |
Profit before taxes | 55,812 | (27,959) | 72,554
Contract land deposit reserve adjustment | (27,300) | 22,163 | (24,633)
Equity-based compensation expense (2) | (82,537) | (58,234) | (50,794)
Corporate capital allocation charge | 302,904 | 252,787 | 239,233
Unallocated corporate overhead | (129,998) | (139,611) | (114,921)
Consolidation adjustments and other (4) | (1,719) | (56,511) | 54,561
Corporate interest income | 32,457 | 2,840 | 8,464
Corporate interest expense | $ (37,995) | $ (51,393) | $ (39,356)

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