Segment Reporting - Reconciliation of Revenue From Segments to Consolidated (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Revenues	$ 5,254,668	$ 3,901,211	$ 3,293,253
Homebuilding Segment
Segment Reporting Information [Line Items]
Revenues	5,102,456	3,765,379	3,205,248
Homebuilding Segment | West
Segment Reporting Information [Line Items]
Revenues	2,964,766	2,106,241	1,771,060
Homebuilding Segment | Mountain
Segment Reporting Information [Line Items]
Revenues	1,567,198	1,293,779	1,131,568
Homebuilding Segment | East
Segment Reporting Information [Line Items]
Revenues	570,492	365,359	302,620
Financial Services Segment
Segment Reporting Information [Line Items]
Revenues	152,212	135,832	88,005
Financial Services Segment | Mortgage operations
Segment Reporting Information [Line Items]
Revenues	107,535	101,675	55,222
Financial Services Segment | Other
Segment Reporting Information [Line Items]
Revenues	$ 44,677	$ 34,157	$ 32,783