Income Taxes	6 Months Ended
Jun. 30, 2013
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 majority-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 period ended June 30, 2013, compared to a tax expense of approximately 36.0% for the comparable three-month period in 2012. The Company recorded a tax expense of approximately 33.2% of income before income tax expense for the six-month period ended June 30, 2013, compared to a tax expense of approximately 36.0% for the comparable six-month period in 2012. The effective tax rate for the six months ended June 30, 2013, includes a discrete event for a retroactive application for a 2012 research and development credit. The American Taxpayer Relief Act of 2012 was passed by Congress and signed into law on January 1, 2013. The provisions under this law are to be applied retroactively to January 1, 2012. As a result of the law being signed on January 1, 2013, the financial impact of the retroactive provision was recorded as a discrete event in the first quarter of 2013. The Company recorded a reduction to tax expense in the first quarter of 2013 by $135,000. Excluding this discrete event, the effective tax rate for the six months ended June 30, 2013, was 35%.

Income Taxes

6 Months Ended

Jun. 30, 2013

(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 majority-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 period ended June 30, 2013, compared to a tax expense of approximately 36.0% for the comparable three-month period in 2012. The Company recorded a tax expense of approximately 33.2% of income before income tax expense for the six-month period ended June 30, 2013, compared to a tax expense of approximately 36.0% for the comparable six-month period in 2012. The effective tax rate for the six months ended June 30, 2013, includes a discrete event for a retroactive application for a 2012 research and development credit. The American Taxpayer Relief Act of 2012 was passed by Congress and signed into law on January 1, 2013. The provisions under this law are to be applied retroactively to January 1, 2012. As a result of the law being signed on January 1, 2013, the financial impact of the retroactive provision was recorded as a discrete event in the first quarter of 2013. The Company recorded a reduction to tax expense in the first quarter of 2013 by $135,000. Excluding this discrete event, the effective tax rate for the six months ended June 30, 2013, was 35%.