Supplemental Income Statement and Cash Flow Disclosure - Other Income (Expense), Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Homebuilding Segment
Segment Reporting Information [Line Items]
Interest income	$ 1,502	$ 2,711	$ 7,797
Other income	4,463	1,522	1,273
Total	5,965	4,233	9,070
Financial Services Segment
Segment Reporting Information [Line Items]
Interest income	4,271	3,578	4,404
Dividend income	0	335	1,022
Gain (loss) on marketable equity securities, net	0	(8,285)	11,797
Total	$ 4,271	$ (4,372)	$ 17,223