Income Taxes Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred Tax Assets, Gross [Abstract]
Warranty, insurance and other accruals	$ 8,931	$ 8,114
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	1,537	2,109
Inventory	5,344	4,254
Deferred Tax Asset, Operating Lease Liabilities	13,145	4,613
State taxes	273	213
Net operating loss carryforward	65	754
Deferred charges	0	426
Total deferred tax assets	29,295	20,483
Deferred Tax Liabilities, Gross [Abstract]
Federal effect of state deferred taxes	230	476
Depreciation	7,794	5,288
Deferred Tax Liability, Operating Lease Right-of-Use Assets	13,099	4,613
Prepaid expenses	1,304	475
Deferred Tax Liabilities, Other	685	0
Total deferred tax liabilities	23,112	10,852
Deferred Tax Assets, Net of Valuation Allowance	$ 6,183	$ 9,631