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Business Segments Business Segments (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Segment Reporting Information [Line Items] |  |  |
Revenue | $ 4,504,670 | $ 4,033,502 | $ 4,131,393
Land and Housing | 3,305,781 | 3,014,573 | 3,087,551
General and administrative | 258,422 | 222,765 | 214,811
Selling | 234,373 | 208,942 | 191,580
Operating income (loss): | 706,094 | 587,222 | 637,451
Interest Expense |  |  | 2,250
Interest Income, net of Interest Expense | (27,514) | (20,022) | (2,250)
Other Income | 0 | (33) | (6)
Income before income taxes | 733,608 | 607,277 | 635,207
Depreciation and amortization: | 17,386 | 15,791 | 17,174
Northern Homebuilding [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | 1,900,013 | 1,523,943 | 1,714,236
Land and Housing | 1,480,326 | 1,228,949 | 1,379,936
General and administrative | 42,908 | 36,827 | 36,659
Selling | 95,680 | 81,847 | 80,142
Operating income (loss): | 281,099 | 176,320 | 217,499
Interest Income, net of Interest Expense | (228) | (186) | (469)
Depreciation and amortization: | 3,787 | 3,673 | 3,308
Southern Homebuilding [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | 2,488,451 | 2,415,730 | 2,330,962
Land and Housing | 1,825,455 | 1,785,624 | 1,707,615
General and administrative | 76,200 | 65,078 | 61,775
Selling | 136,198 | 124,860 | 109,698
Operating income (loss): | 450,598 | 440,168 | 451,874
Interest Income, net of Interest Expense | (2,554) | (1,703) | (1,447)
Depreciation and amortization: | 3,636 | 2,965 | 2,790
Financial Service |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue | 116,206 | 93,829 | 86,195
Land and Housing | 0 | 0 | 0
General and administrative | 52,826 | 45,115 | 41,813
Selling | 0 | 0 | 0
Operating income (loss): | 63,380 | 48,714 | 44,382
Interest Expense | 13,698 | 10,360 | 5,122
Depreciation and amortization: | 1,130 | 810 | 2,178
Operating Segments |  |  |
Segment Reporting Information [Line Items] |  |  |
General and administrative | 171,934 | 147,020 | 140,247
Selling | 231,878 | 206,707 | 189,840
Operating income (loss): | 795,077 | 665,202 | 713,755
Interest Income, net of Interest Expense | (10,916) | (8,471) | (3,206)
Depreciation and amortization: | 8,553 | 7,448 | 8,276
Corporate and Other [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
General and administrative | 86,488 | 75,745 | 74,564
Selling | 2,495 | 2,235 | 1,740
Less: Corporate selling, general and administrative expenses | (88,983) | (77,980) | (76,304)
Interest and Other Income | (38,430) | (28,493) | (956)
Depreciation and amortization: | $ 8,833 | $ 8,343 | $ 8,898

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