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Income Taxes Income Tax Rates (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Income Tax Rate Disclosures [Abstract]    
Effective tax rate, forecasted 35.20%  
Effective Income Tax Rate, Continuing Operations, Forecasted Increase (Decrease) in Rate 0.60%  
Effective Income Tax Rate, Continuing Operations   35.80%
Effective tax rate, including loss jurisdictions 35.50%  
Unrecognized Tax Benefits that Would Impact Effective Tax Rate $ 93  
Effective Tax Rate, After Discreet Benefits 31.30%