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Income Taxes Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Deferred Tax Assets, Gross [Abstract] |  |
Warranty, insurance and other accruals | $ 14,460 | $ 13,155
Inventory | 9,528 | 11,049
State taxes | 211 | 175
Net operating loss carryforward | 42,556 | 69,946
Deferred charges | 649 | 1,711
Total deferred tax assets | 67,404 | 96,036
Deferred Tax Liabilities, Gross [Abstract] |  |
Federal effect of state deferred taxes | 5,519 | 0
Depreciation | 0 | 1,191
Prepaid expenses | 0 | 433
Total deferred tax liabilities | 5,519 | 1,624
Deferred Tax Assets, Net of Valuation Allowance | $ 61,885 | $ 94,412

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