Income Taxes	9 Months Ended
Sep. 30, 2013
Income Taxes
Income Taxes	12. Income Taxes Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The largest item affecting deferred taxes is the difference between book and tax amortization of goodwill and other intangibles amortization. The Company estimates that the annual effective tax rate for 2013 will be approximately 38%. The Company’s effective tax rate was 13.1% and 24.1% for the three months ended September 30, 2013 and 2012, respectively. The effective tax rate for the three months ended September 30, 2013 was lower than corresponding period in 2012 due to changes triggered by the TrynEx acquisition, including changes in apportionment of certain discrete period items among various taxing jurisdictions. The Company’s effective tax rate for the nine months ended September 30, 2013 and 2012 was 29.6% and 33.3%, respectively The effective rate for the nine months ended September 30, 2013 was lower than the corresponding period in 2012 due to tax benefits related to the inability to utilize a 2012 federal research and development credit until 2013 due to delayed legislation. In addition, the effective tax rate for the nine months ended September 30, 2012 incorporated state valuation allowance adjustments that did not recur in 2013.

Income Taxes

9 Months Ended

Sep. 30, 2013

12. Income Taxes

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The largest item affecting deferred taxes is the difference between book and tax amortization of goodwill and other intangibles amortization. The Company estimates that the annual effective tax rate for 2013 will be approximately 38%. The Company’s effective tax rate was 13.1% and 24.1% for the three months ended September 30, 2013 and 2012, respectively. The effective tax rate for the three months ended September 30, 2013 was lower than corresponding period in 2012 due to changes triggered by the TrynEx acquisition, including changes in apportionment of certain discrete period items among various taxing jurisdictions. The Company’s effective tax rate for the nine months ended September 30, 2013 and 2012 was 29.6% and 33.3%, respectively The effective rate for the nine months ended September 30, 2013 was lower than the corresponding period in 2012 due to tax benefits related to the inability to utilize a 2012 federal research and development credit until 2013 due to delayed legislation. In addition, the effective tax rate for the nine months ended September 30, 2012 incorporated state valuation allowance adjustments that did not recur in 2013.