Income Taxes	9 Months Ended
Sep. 30, 2013
Income Tax Disclosure [Abstract]
Income Taxes	Note 8—Income Taxes Our effective tax rate for the nine months ended September 30, 2013 is equal to our expected annual tax rate of 23%. This is lower than the U.S. statutory rate of 34%, primarily due to income in foreign jurisdictions taxed at lower rates. In the first half of 2013, our expected annual tax rate was estimated to be 17%. The increase in the expected annual tax rate results from a shift in income mix away from low-tax jurisdictions. Our effective tax rate for the three months ended September 30, 2013 was 29%. The effective rate for the quarter is higher than the estimated annual rate because it includes an adjustment for the first half of the year to account for the increase in the estimated rate from 17% to 23%. Our effective tax rate for the nine months ended September 30, 2012 was equal to our expected annual tax rate of 22%. The expected annual rate was lower than the U.S. statutory rate primarily due to income in foreign jurisdictions taxed at lower rates. In the first half of 2012, our estimated annual tax rate was 21%. The increase in the expected annual tax rate resulted from a shift in income mix away from low-tax jurisdictions Our effective tax rate for the three months ended September 30, 2012 was 24%. The effective rate for the quarter was higher than the estimated annual rate because it included an adjustment for the first half of the year to account for the increase in the estimated rate from 21% to 22%. At December 31, 2012, we had $11,620 of U.S. net operating loss (“ NOL”) carryforwards, of which $9,093 represents U.S. tax deductions for employee stock option gains, the tax benefit of which will be credited to additional paid in capital when the NOL carryforwards are utilized. The U.S. loss carryforwards expire in varying amounts beginning in 2022 and continuing through 2032. If certain substantial changes in the company’s ownership were deemed to have occurred, there would be an annual limitation on the amount of the U.S. NOL carryforwards that could be utilized. At December 31, 2012, we had foreign NOL carryforwards of $5,279 and other foreign deductible carryforwards of $3,491. The foreign NOL carryforwards have no expiration dates and the other deductible carryforwards expire from 2016 to 2019. At December 31, 2012, we had a valuation allowance of $2,284 for certain foreign deferred tax assets.

Income Taxes

9 Months Ended

Sep. 30, 2013

Note 8—Income Taxes

Our effective tax rate for the nine months ended September 30, 2013 is equal to our expected annual tax rate of 23%. This is lower than the U.S. statutory rate of 34%, primarily due to income in foreign jurisdictions taxed at lower rates. In the first half of 2013, our expected annual tax rate was estimated to be 17%. The increase in the expected annual tax rate results from a shift in income mix away from low-tax jurisdictions.

Our effective tax rate for the three months ended September 30, 2013 was 29%. The effective rate for the quarter is higher than the estimated annual rate because it includes an adjustment for the first half of the year to account for the increase in the estimated rate from 17% to 23%.

Our effective tax rate for the nine months ended September 30, 2012 was equal to our expected annual tax rate of 22%. The expected annual rate was lower than the U.S. statutory rate primarily due to income in foreign jurisdictions taxed at lower rates. In the first half of 2012, our estimated annual tax rate was 21%. The increase in the expected annual tax rate resulted from a shift in income mix away from low-tax jurisdictions

Our effective tax rate for the three months ended September 30, 2012 was 24%. The effective rate for the quarter was higher than the estimated annual rate because it included an adjustment for the first half of the year to account for the increase in the estimated rate from 21% to 22%.

At December 31, 2012, we had $11,620 of U.S. net operating loss (“ NOL”) carryforwards, of which $9,093 represents U.S. tax deductions for employee stock option gains, the tax benefit of which will be credited to additional paid in capital when the NOL carryforwards are utilized. The U.S. loss carryforwards expire in varying amounts beginning in 2022 and continuing through 2032. If certain substantial changes in the company’s ownership were deemed to have occurred, there would be an annual limitation on the amount of the U.S. NOL carryforwards that could be utilized.

At December 31, 2012, we had foreign NOL carryforwards of $5,279 and other foreign deductible carryforwards of $3,491. The foreign NOL carryforwards have no expiration dates and the other deductible carryforwards expire from 2016 to 2019. At December 31, 2012, we had a valuation allowance of $2,284 for certain foreign deferred tax assets.