Segment Reporting - Total Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Total Assets	$ 5,059,114	$ 4,963,528
Homebuilding:
Segment Reporting Information [Line Items]
Total Assets	4,717,564	4,543,134
Financial Services:
Segment Reporting Information [Line Items]
Total Assets	341,550	420,394
Operating Segments | Homebuilding: | West
Segment Reporting Information [Line Items]
Total Assets	2,548,681	2,472,378
Operating Segments | Homebuilding: | Mountain
Segment Reporting Information [Line Items]
Total Assets	1,141,395	1,072,717
Operating Segments | Homebuilding: | East
Segment Reporting Information [Line Items]
Total Assets	479,790	450,675
Operating Segments | Financial Services: | Mortgage operations
Segment Reporting Information [Line Items]
Total Assets	228,712	313,373
Operating Segments | Financial Services: | Other
Segment Reporting Information [Line Items]
Total Assets	112,838	107,021
Corporate | Homebuilding:
Segment Reporting Information [Line Items]
Total Assets	$ 547,698	$ 547,364