Income Taxes	9 Months Ended
Sep. 30, 2013
Income Taxes
Income Taxes	Note 11. Income Taxes Our tax provision for interim periods is determined using an estimate of our annual effective tax rate, adjusted for discrete items, if any, that are taken into account in the relevant period. Each quarter we update our estimate of the annual effective tax rate, and if our estimated tax rate changes, we make a cumulative adjustment. Our quarterly tax provision, and our quarterly estimate of our annual effective tax rate, is subject to significant volatility due to several factors, including variability in accurately predicting our pre-tax and taxable income and loss and the mix of jurisdictions to which they relate, income and losses from investments, changes in laws and relative changes of expenses or losses for which tax benefits are not recognized. Additionally, our effective tax rate can be more or less volatile based on the amount of pre-tax income. For example, the impact of discrete items and non-deductible expenses on our effective tax rate is greater when our pre-tax income is lower. Income tax benefit totaled approximately $27.2 million and $0.7 million for the nine months ended September 30, 2013 and 2012, respectively. Our effective income tax rate was 94.9% for the nine months ended September 30, 2013 compared to (0.4%) for the same period in 2012. The variation in our current year effective tax rate from a U.S. federal statutory rate for the current period was primarily due to the release of our valuation allowance associated with capital loss carryforwards in conjunction with the sale of certain of our capital investments, higher state effective tax rates due to geographic distribution of income, current year research and experimentation credits, and reinstatement of the research and experimentation tax credit for 2012, as provided by the American Taxpayer Relief Act enacted on January 2, 2013. For the same period in 2012, the variation from a U.S. federal statutory rate was primarily attributable to the release of our valuation allowance associated with the sale of certain of our capital investments. In addition, significant fluctuation in the effective tax rate from a U.S. federal statutory rate resulted from our pre-tax losses in the current year. The IRS has completed its audit of the Company’s federal income tax return for calendar year 2008. We may be subject to examination by the IRS for all years thereafter. The completion of the audit did not have a material effect on our income tax benefit or our estimated effective tax rate for calendar year 2013.

Note 11. Income Taxes

Our tax provision for interim periods is determined using an estimate of our annual effective tax rate, adjusted for discrete items, if any, that are taken into account in the relevant period. Each quarter we update our estimate of the annual effective tax rate, and if our estimated tax rate changes, we make a cumulative adjustment.

Our quarterly tax provision, and our quarterly estimate of our annual effective tax rate, is subject to significant volatility due to several factors, including variability in accurately predicting our pre-tax and taxable income and loss and the mix of jurisdictions to which they relate, income and losses from investments, changes in laws and relative changes of expenses or losses for which tax benefits are not recognized. Additionally, our effective tax rate can be more or less volatile based on the amount of pre-tax income. For example, the impact of discrete items and non-deductible expenses on our effective tax rate is greater when our pre-tax income is lower.

Income tax benefit totaled approximately $27.2 million and $0.7 million for the nine months ended September 30, 2013 and 2012, respectively. Our effective income tax rate was 94.9% for the nine months ended September 30, 2013 compared to (0.4%) for the same period in 2012. The variation in our current year effective tax rate from a U.S. federal statutory rate for the current period was primarily due to the release of our valuation allowance associated with capital loss carryforwards in conjunction with the sale of certain of our capital investments, higher state effective tax rates due to geographic distribution of income, current year research and experimentation credits, and reinstatement of the research and experimentation tax credit for 2012, as provided by the American Taxpayer Relief Act enacted on January 2, 2013. For the same period in 2012, the variation from a U.S. federal statutory rate was primarily attributable to the release of our valuation allowance associated with the sale of certain of our capital investments. In addition, significant fluctuation in the effective tax rate from a U.S. federal statutory rate resulted from our pre-tax losses in the current year.

The IRS has completed its audit of the Company’s federal income tax return for calendar year 2008. We may be subject to examination by the IRS for all years thereafter. The completion of the audit did not have a material effect on our income tax benefit or our estimated effective tax rate for calendar year 2013.