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Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2015
Sep. 30, 2014
Income Tax Disclosure      
Effective income tax rate 38.50% 39.20%  
Deferred tax asset valuation allowance | State      
Valuation Allowance      
Increase (decrease) in valuation allowance     $ 6.4