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Income Taxes
9 Months Ended
Sep. 30, 2016
Income Tax Disclosure [Abstract]  
Income Taxes
12. Income Taxes

For interim reporting periods, the Company’s provision for income taxes is calculated using its annualized estimated effective tax rate for the year. This rate is based on our estimated full-year income and the related income tax expense for each jurisdiction in which we operate. Changes in the geographical mix, permanent differences or estimated level of annual pre-tax income can impact the Company’s actual effective rate. This rate is adjusted for the effects of discrete items occurring in the quarter. During the quarter, discrete items included the research and development tax credit of $0.7 million for tax years 2014 and 2015. This discrete item lowered the effective tax rate for the quarter approximately 1.5 percentage points.