Income Taxes Effective Tax Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Federal statutory rate	35.00%	35.00%	35.00%
State taxes, net of federal benefit	(0.50%)	(8.10%)	15.10%
Foreign losses not benefited	0.00%	(0.30%)	(0.60%)
Changes in tax reserves	0.20%	(78.60%)	(53.90%)
Change in valuation allowance	30.30%	(78.70%)	(263.50%)
Permanent differences	(64.60%)	(1.80%)	24.60%
Foreign tax refund	6.50%	0.00%	0.00%
Other	(1.70%)	0.00%	0.30%
Effective income tax rate	5.20%	(132.50%)	(243.00%)