Income Taxes	9 Months Ended
Sep. 30, 2013
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income tax expense for each of the three months ended September 30, 2013 and 2012, was $6.5 million, or 38.1% of pre-tax income, and $4.5 million, or 42.7% of pre-tax income, respectively. Income tax expense for each of the nine months ended September 30, 2013 and 2012, was $14.5 million, or 32.8% of pre-tax income and $12.4 million, or 38.3% of pre-tax income, respectively. The effective tax rate in 2012 was higher due to the loss of certain tax credits, as discussed below. Also, in the third quarter of 2012, the Company had some return to provision adjustments that caused the effective rate for that quarter to be higher than normal. The Company’s estimated annual effective tax rate for the year 2013 is 33.4%. This differs from the U.S. federal statutory rate of 35% due to items such as state and local income taxes, Domestic Activities Deduction and various other federal and state income tax credits. Additionally, the income tax provision for the nine months ended September 30, 2013 reflects discrete benefits related to the Research and Development (“R&D”) Credit and the Indian Employment Credit that were recorded in the first quarter of 2013. These federal credits were retroactively reinstated on January 2, 2013, with the enactment of the American Taxpayer Relief Act of 2012. No R&D Credit or Indian Employment Credit benefits were recorded in the income tax provision for 2012. The Company also had a change in estimate related to the recoverability of certain 2012 tax credits that was recorded in the first quarter of 2013, causing our effective tax rate to be lower than expected. This change in estimate was the result of additional and better information. We file income tax returns in the U.S., state and foreign income tax returns jurisdictions. We are subject to U.S. examinations for tax years 2010 to present, and to non-U.S. income tax examinations for the tax years of 2007 through 2010. In addition, we are subject to state and local income tax examinations for the tax years 2009 to present. The Company continues to evaluate its need to file returns in various state jurisdictions and recorded $0.2 million in additional state income tax expense, net of federal benefit, during the second quarter ended June 30, 2013, related to our updated assessment of required state filings. Any interest or penalties would be recognized as a component of income tax expense.

Income Taxes

Income tax expense for each of the three months ended September 30, 2013 and 2012, was $6.5 million, or 38.1% of pre-tax income, and $4.5 million, or 42.7% of pre-tax income, respectively. Income tax expense for each of the nine months ended September 30, 2013 and 2012, was $14.5 million, or 32.8% of pre-tax income and $12.4 million, or 38.3% of pre-tax income, respectively. The effective tax rate in 2012 was higher due to the loss of certain tax credits, as discussed below. Also, in the third quarter of 2012, the Company had some return to provision adjustments that caused the effective rate for that quarter to be higher than normal. The Company’s estimated annual effective tax rate for the year 2013 is 33.4%. This differs from the U.S. federal statutory rate of 35% due to items such as state and local income taxes, Domestic Activities Deduction and various other federal and state income tax credits. Additionally, the income tax provision for the nine months ended September 30, 2013 reflects discrete benefits related to the Research and Development (“R&D”) Credit and the Indian Employment Credit that were recorded in the first quarter of 2013. These federal credits were retroactively reinstated on January 2, 2013, with the enactment of the American Taxpayer Relief Act of 2012. No R&D Credit or Indian Employment Credit benefits were recorded in the income tax provision for 2012. The Company also had a change in estimate related to the recoverability of certain 2012 tax credits that was recorded in the first quarter of 2013, causing our effective tax rate to be lower than expected. This change in estimate was the result of additional and better information.

We file income tax returns in the U.S., state and foreign income tax returns jurisdictions. We are subject to U.S. examinations for tax years 2010 to present, and to non-U.S. income tax examinations for the tax years of 2007 through 2010. In addition, we are subject to state and local income tax examinations for the tax years 2009 to present. The Company continues to evaluate its need to file returns in various state jurisdictions and recorded $0.2 million in additional state income tax expense, net of federal benefit, during the second quarter ended June 30, 2013, related to our updated assessment of required state filings. Any interest or penalties would be recognized as a component of income tax expense.