Segment Reporting - Total Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Total Assets	$ 5,488,003	$ 5,363,272
Homebuilding assets
Segment Reporting Information [Line Items]
Total Assets	5,055,627	4,958,062
Financial services assets
Segment Reporting Information [Line Items]
Total Assets	432,376	405,210
Operating Segments | Homebuilding assets | West
Segment Reporting Information [Line Items]
Total Assets	2,083,054	2,275,144
Operating Segments | Homebuilding assets | Mountain
Segment Reporting Information [Line Items]
Total Assets	854,877	1,005,622
Operating Segments | Homebuilding assets | East
Segment Reporting Information [Line Items]
Total Assets	460,413	427,926
Operating Segments | Financial services assets | Mortgage operations
Segment Reporting Information [Line Items]
Total Assets	203,872	267,309
Operating Segments | Financial services assets | Other
Segment Reporting Information [Line Items]
Total Assets	228,504	137,901
Corporate | Homebuilding assets
Segment Reporting Information [Line Items]
Total Assets	$ 1,657,283	$ 1,249,370