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Income Taxes Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Deferred Tax Assets, Gross [Abstract] |  |
Warranty, insurance and other accruals | $ 8,114 | $ 8,218
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost | 2,109 | 4,096
Inventory | 4,254 | 4,441
Deferred Tax Asset, Operating Lease Liabilities | 4,613 | 0
State taxes | 213 | 185
Net operating loss carryforward | 754 | 3,240
Deferred charges | 426 | 0
Total deferred tax assets | 20,483 | 20,180
Deferred Tax Liabilities, Gross [Abstract] |  |
Federal effect of state deferred taxes | 476 | 1,079
Depreciation | 5,288 | 4,801
Deferred Tax Liability, Operating Lease Right-of-Use Assets | 4,613 | 0
Prepaid expenses | 475 | 285
Deferred Tax Liabilities, Other | 0 | 533
Total deferred tax liabilities | 10,852 | 6,698
Deferred Tax Assets, Net of Valuation Allowance | $ 9,631 | $ 13,482

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