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Segment Disclosures - Income before Taxes (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Income before taxes | $ 533,568 | $ 471,176 | $ 1,004,260 | $ 904,986
Equity-based compensation expense |  |  | (35,242) | (47,436)
Home Building Segment |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Income before taxes | 488,536 | 434,711 | 930,214 | 840,461
Mortgage Banking |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Income before taxes | 45,032 | 36,465 | 74,046 | 64,525
Operating Segments |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Income before taxes | 467,802 | 446,433 | 892,085 | 848,836
Operating Segments | Home Building Segment | Mid Atlantic |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Income before taxes | 209,166 | 195,254 | 399,130 | 354,292
Operating Segments | Home Building Segment | North East |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Income before taxes | 54,372 | 44,932 | 101,229 | 76,992
Operating Segments | Home Building Segment | Mid East |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Income before taxes | 63,588 | 61,756 | 129,989 | 118,224
Operating Segments | Home Building Segment | South East |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Income before taxes | 94,442 | 106,648 | 185,847 | 232,058
Operating Segments | Mortgage Banking |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Income before taxes | 46,234 | 37,843 | 75,890 | 67,270
Corporate and Reconciling Items |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Income before taxes | 65,766 | 24,743 | 112,175 | 56,150
Segment Reconciling Items |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Contract land deposit reserve adjustment | 1,325 | 6,888 | 8,791 | 10,479
Equity-based compensation expense | (18,101) | (25,159) | (35,242) | (47,436)
Corporate capital allocation | 82,494 | 72,617 | 159,555 | 141,691
Unallocated corporate overhead | (33,816) | (46,360) | (85,520) | (92,325)
Consolidation adjustments and other | 6,363 | (9,998) | 4,092 | (5,999)
Corporate, Non-Segment |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Corporate Interest Expense | (6,670) | (6,589) | (13,265) | (13,543)
Interest income | $ 34,171 | $ 33,344 | $ 73,764 | $ 63,283

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