Income Taxes	9 Months Ended
Sep. 30, 2014
Income Taxes
Income Taxes	(10)Income Taxes The income tax expense included in the accompanying unaudited consolidated statements of income principally relates to the Company’s proportionate share of the pre-tax income of its wholly-owned subsidiaries. The determination of income tax expense for interim reporting purposes is based upon the estimated effective tax rate for the year, adjusted for the impact of any discrete items which are accounted for in the period in which they occur. The Company recorded a tax expense of approximately 35.0% of income before income tax expense for the three-month periods ended September 30, 2014, and 2013, respectively. The Company recorded a tax expense of approximately 35.0% of income before income tax expense for the nine-month period ended September 30, 2014, compared to a tax expense of approximately 33.9% for the comparable nine-month period in 2013. The increase in the effective tax rate was a result of a retroactive application for a 2012 research and development credit which was recorded as a discrete event in the first quarter of 2013. Excluding this discrete event, the effective tax rate for the nine months ended September 30, 2013, was also approximately 35.0%.

Income Taxes

9 Months Ended

Sep. 30, 2014

(10)Income Taxes

The income tax expense included in the accompanying unaudited consolidated statements of income principally relates to the Company’s proportionate share of the pre-tax income of its wholly-owned subsidiaries. The determination of income tax expense for interim reporting purposes is based upon the estimated effective tax rate for the year, adjusted for the impact of any discrete items which are accounted for in the period in which they occur.

The Company recorded a tax expense of approximately 35.0% of income before income tax expense for the three-month periods ended September 30, 2014, and 2013, respectively. The Company recorded a tax expense of approximately 35.0% of income before income tax expense for the nine-month period ended September 30, 2014, compared to a tax expense of approximately 33.9% for the comparable nine-month period in 2013. The increase in the effective tax rate was a result of a retroactive application for a 2012 research and development credit which was recorded as a discrete event in the first quarter of 2013. Excluding this discrete event, the effective tax rate for the nine months ended September 30, 2013, was also approximately 35.0%.