Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
State net operating loss carryforwards	$ 3,361	$ 5,739
Stock-based compensation expense	4,350	4,546
Warranty, litigation and other reserves	14,785	12,686
Accrued compensation	8,602	2,958
Asset impairment charges	468	1,416
Inventory, additional net costs capitalized for tax purposes	8,298	8,938
Other, net	1,526	3,441
Total deferred tax assets	41,390	39,724
Valuation allowance	(3,316)	(4,370)
Total deferred tax assets, net of valuation allowance	38,074	35,354
Deferred tax liabilities:
Property, equipment and other assets	10,871	11,654
Deferral of profit on home sales	4,668	7,144
Other, net	4,593	5,102
Total deferred tax liabilities	20,132	23,900
Net deferred tax asset	$ 17,942	$ 11,454