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Income Taxes - Narrative (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Income Tax Disclosure [Abstract]        
Federal statutory income tax rate     35.00%  
Effective income tax rate on pre-tax loss 0.00% 2.50% 0.00% 3.90%