Income Taxes	6 Months Ended
Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company’s effective income tax rate was 33.1% and 34.8% for the six months ended June 30, 2016 and 2015, respectively. The effective income tax rate is based on estimated income for the year, the estimated composition of the income in different jurisdictions and discrete adjustments, if any, in the applicable quarterly periods, including retroactive changes in tax legislation, settlements of tax audits or assessments, the resolution or identification of tax position uncertainties and acquisitions of other companies. For the six months ended June 30, 2016, the effective income tax rate was lower than the federal statutory tax rate due to the composition of income from foreign jurisdictions that is taxed at lower rates compared to the statutory tax rates in the U.S. and the U.S. federal, state and foreign research and development credits, partially offset by the effects of accounting for stock-based compensation in accordance with the authoritative guidance for share-based payments and state income taxes. For the six months ended June 30, 2015, the effective income tax rate was lower than the federal statutory tax rate due to the domestic production activities deduction and the composition of income from foreign jurisdictions that is taxed at lower rates compared to the statutory tax rates in the U.S., partially offset by the effects of accounting for stock-based compensation in accordance with the authoritative guidance for share-based payments and state income taxes.

Income Taxes

6 Months Ended

Jun. 30, 2016

The Company’s effective income tax rate was 33.1% and 34.8% for the six months ended June 30, 2016 and 2015, respectively. The effective income tax rate is based on estimated income for the year, the estimated composition of the income in different jurisdictions and discrete adjustments, if any, in the applicable quarterly periods, including retroactive changes in tax legislation, settlements of tax audits or assessments, the resolution or identification of tax position uncertainties and acquisitions of other companies.

For the six months ended June 30, 2016, the effective income tax rate was lower than the federal statutory tax rate due to the composition of income from foreign jurisdictions that is taxed at lower rates compared to the statutory tax rates in the U.S. and the U.S. federal, state and foreign research and development credits, partially offset by the effects of accounting for stock-based compensation in accordance with the authoritative guidance for share-based payments and state income taxes. For the six months ended June 30, 2015, the effective income tax rate was lower than the federal statutory tax rate due

to the domestic production activities deduction and the composition of income from foreign jurisdictions that is taxed at lower

rates compared to the statutory tax rates in the U.S., partially offset by the effects of accounting for stock-based compensation

in accordance with the authoritative guidance for share-based payments and state income taxes.