Business Segments Business Segments - Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Segment Reporting Information [Line Items]
Deposits on real estate under option or contract	$ 81,520	$ 69,483
Inventory	3,331,310	3,022,379
Investment in joint venture arrangements	81,514	65,334
Other assets	1,275,200	1,392,600
Total assets	4,769,544	4,549,796
Northern Homebuilding [Member]
Segment Reporting Information [Line Items]
Deposits on real estate under option or contract	17,148	12,209
Inventory	1,171,163	1,041,713
Investment in joint venture arrangements	0	0
Other assets	41,643	37,721
Total assets	1,229,954	1,091,643
Southern Homebuilding [Member]
Segment Reporting Information [Line Items]
Deposits on real estate under option or contract	64,372	57,274
Inventory	2,160,147	1,980,666
Investment in joint venture arrangements	81,514	65,334
Other assets	142,135	132,316
Total assets	2,448,168	2,235,590
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Deposits on real estate under option or contract	0	0
Inventory	0	0
Investment in joint venture arrangements	0	0
Other assets	763,995	852,005
Total assets	763,995	852,005
Financial Service
Segment Reporting Information [Line Items]
Deposits on real estate under option or contract	0	0
Inventory	0	0
Investment in joint venture arrangements	0	0
Other assets	327,427	370,558
Total assets	327,427	370,558
Operating Segments
Segment Reporting Information [Line Items]
Deposits on real estate under option or contract	81,520	69,483
Inventory	3,331,310	3,022,379
Investment in joint venture arrangements	81,514	65,334
Other assets	511,205	540,595
Total assets	$ 4,005,549	$ 3,697,791