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Income Taxes | 3 Months Ended | 6 Months Ended
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Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Income Taxes [Abstract] |  |  |  |
Income Taxes |  |  | Note 11. Income Taxes Our effective income tax rates were 29.1% and 30.1% for the three and six months ended June 30, 2014, respectively, compared to 30.8% and 28.8% for the three and six months ended June 30, 2013, respectively. The decrease in our effective income tax rate for the three months ended June 30, 2014, as compared to the same period of the prior year, was related to the resolution of domestic and international tax audits, which resulted in a net reduction in our provision for uncertain tax positions, and higher relative earnings subject to international tax rates that are lower than domestic tax rates. These favorable factors were partly offset by the U.S. research and development (“R&D”) tax credit which was not available during the three months ended June 30, 2014 because the legislation expired as of January 1, 2014. The increase in our effective income tax rate for the six months ended June 30, 2014, as compared to the same period of the prior year, was related to the R&D tax credit which expired as of January 1, 2014. During the three months ended March 31, 2013, legislation in the U.S. retroactively allowed the R&D tax credit for all of 2012 and extended the R&D tax credit through the year ended December 31, 2013. Because this legislation was enacted during the three months ended March 31, 2013, the full benefit of the credit related to the prior years’ activities was recognized within that quarter. The net unfavorable impact resulting from the absence of the R&D credit during the six months ended June 30, 2014 was partly offset by the resolution of domestic and international tax audits, which resulted in a net reduction in our provision for uncertain tax positions, and higher relative earnings subject to international tax rates that are lower than domestic tax rates. |
Effective income tax rate | 29.10% | 30.80% | 30.10% | 28.80%

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 + Details
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