Income Taxes Deferred Tax Assets and Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred Tax Assets, Gross [Abstract]
Warranty, insurance and other accruals	$ 12,003	$ 11,378
Inventory	16,657	22,612
State taxes	106	(64)
Net operating loss carryforward	91,659	102,475
Deferred charges	897	336
Total deferred tax assets	121,322	136,737
Deferred Tax Assets, Valuation Allowance	(9,291)	(135,749)
Net deferred tax asset	112,031	988
Deferred Tax Liabilities, Gross [Abstract]
Depreciation	774	804
Prepaid expenses	346	184
Total deferred tax liabilities	1,120	988
Deferred Tax Assets, Net of Valuation Allowance	$ 110,911	$ 0