Segment Reporting - Total Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Total assets	$ 5,105,701	$ 5,631,085
Homebuilding assets
Segment Reporting Information [Line Items]
Total assets	4,564,524	5,097,192
Financial services assets
Segment Reporting Information [Line Items]
Total assets	541,177	533,893
Operating Segments | Homebuilding assets | West
Segment Reporting Information [Line Items]
Total assets	2,005,497	2,155,357
Operating Segments | Homebuilding assets | Mountain
Segment Reporting Information [Line Items]
Total assets	1,041,949	874,031
Operating Segments | Homebuilding assets | East
Segment Reporting Information [Line Items]
Total assets	539,484	459,078
Operating Segments | Financial services assets | Mortgage operations
Segment Reporting Information [Line Items]
Total assets	270,317	295,092
Operating Segments | Financial services assets | Other
Segment Reporting Information [Line Items]
Total assets	270,860	238,801
Corporate | Homebuilding assets
Segment Reporting Information [Line Items]
Total assets	$ 977,594	$ 1,608,726