Income Taxes	9 Months Ended
Sep. 30, 2014
Income Taxes
Income Taxes	Note 3—Income Taxes At the end of each interim reporting period, we estimate the effective tax rate expected to be applicable for the full year. This estimate is used to determine the income tax provision or benefit on a year-to-date basis and may change in subsequent interim periods. Our effective tax rate for the three months ended September 30, 2014 was a benefit of 18.7% compared to a benefit of 38.2% during the three months ended September 30, 2013. Our effective tax rate for the nine months ended September 30, 2014 was a benefit of 28.8% compared to a benefit of 43.6% during the nine months ended September 30, 2013. A tax benefit for each period was provided to the extent of future reversals of taxable temporary differences which relate primarily to non-tax deductible intangibles. Our effective tax rate for 2014 differed from the U.S. federal statutory rate of 35% primarily related to our ability to recognize only a portion of the deferred tax assets on a more likely than not basis with respect to current year pre-tax operating losses. The effective tax rate for the nine months ended September 30, 2014 was also impacted by a discrete tax benefit in connection with the settlement of our 2010 IRS examination and because we did not provide a tax provision on the gain from the settlement of the contingent consideration related to the Synos acquisition. Our effective tax rate for 2013 differed from the U.S. federal statutory rate as a result of the jurisdictional mix of earnings in our foreign locations, an income tax benefit related to the generation of current year research and development tax credits, and legislation enacted in the first quarter of 2013 which extended the Federal Research & Development Credit for both the 2012 and 2013 tax years. We recently settled our 2010 IRS examination, resulting in the release of $2.3 million of liabilities relating to uncertain tax positions. We were also notified that the IRS will commence an examination of our 2011 tax year beginning in the quarter ending December 31, 2014.

Income Taxes

9 Months Ended

Sep. 30, 2014

Note 3—Income Taxes

At the end of each interim reporting period, we estimate the effective tax rate expected to be applicable for the full year. This estimate is used to determine the income tax provision or benefit on a year-to-date basis and may change in subsequent interim periods.

Our effective tax rate for the three months ended September 30, 2014 was a benefit of 18.7% compared to a benefit of 38.2% during the three months ended September 30, 2013. Our effective tax rate for the nine months ended September 30, 2014 was a benefit of 28.8% compared to a benefit of 43.6% during the nine months ended September 30, 2013. A tax benefit for each period was provided to the extent of future reversals of taxable temporary differences which relate primarily to non-tax deductible intangibles.

Our effective tax rate for 2014 differed from the U.S. federal statutory rate of 35% primarily related to our ability to recognize only a portion of the deferred tax assets on a more likely than not basis with respect to current year pre-tax operating losses. The effective tax rate for the nine months ended September 30, 2014 was also impacted by a discrete tax benefit in connection with the settlement of our 2010 IRS examination and because we did not provide a tax provision on the gain from the settlement of the contingent consideration related to the Synos acquisition.

Our effective tax rate for 2013 differed from the U.S. federal statutory rate as a result of the jurisdictional mix of earnings in our foreign locations, an income tax benefit related to the generation of current year research and development tax credits, and legislation enacted in the first quarter of 2013 which extended the Federal Research & Development Credit for both the 2012 and 2013 tax years.

We recently settled our 2010 IRS examination, resulting in the release of $2.3 million of liabilities relating to uncertain tax positions. We were also notified that the IRS will commence an examination of our 2011 tax year beginning in the quarter ending December 31, 2014.