Business Segments Business Segments - Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Deposits on real estate under option or contract	$ 49,595	$ 55,739
Inventory	2,690,933	2,772,863
Investment in joint venture arrangements	44,866	51,554
Other assets	1,217,974	834,767
Total assets	4,003,368	3,714,923
Northern Homebuilding [Member]
Segment Reporting Information [Line Items]
Deposits on real estate under option or contract	8,062	8,138
Inventory	1,046,578	1,100,472
Investment in joint venture arrangements	0	0
Other assets	34,366	38,265
Total assets	1,089,006	1,146,875
Southern Homebuilding [Member]
Segment Reporting Information [Line Items]
Deposits on real estate under option or contract	41,533	47,601
Inventory	1,644,355	1,672,391
Investment in joint venture arrangements	44,866	51,554
Other assets	109,798	103,182
Total assets	1,840,552	1,874,728
Corporate, Financial Services and Unallocated [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	1,073,810	693,320
Total assets	$ 1,073,810	$ 693,320