Income Taxes	3 Months Ended
Mar. 31, 2016
Income Taxes [Abstract]
Income Taxes	10. Income Taxes The Company files income tax returns in the U.S. federal jurisdiction and various state and foreign jurisdictions. The Internal Revenue Service (the "IRS") has completed examinations of the Company's U.S. income tax returns or the statute of limitations has passed on returns for the years through 2010. The Company's 2011, 2012 and 2013 U.S. income tax returns are currently under examination by the IRS. The IRS has sought to disallow certain research credits on the Company's 2011 and 2012 U.S. income tax returns. The Company is actively appealing the IRS's initial findings. The Company believes the research credits taken are appropriate and intends to vigorously defend its position. The amount of adjustment, if any, and the timing of such adjustment is not reasonably estimable at this time. Under the provisions of the ASC Subtopic 740-10-25, Income Taxes - Recognition, the Company had an unrecognized tax benefit of $1.1 million as of March 31, 2016. The Company's effective tax rate was 31.1% for the three months ended March 31, 2016 compared to 34.6% for the three months ended March 31, 2015. The decrease in the effective rate is primarily due to the research and development tax credit, which was not re-enacted by Congress for the three months ended March 31, 2015, but was adopted in December 2015 and therefore favorably impacted the current year quarter. The rate was also favorably impacted by the early adoption of ASU No. 2016-09. See Note 12, Recent Accounting Pronouncements, for additional information regarding the adoption of ASU No. 2016-09. As of March 31, 2016, the Company's net non-current deferred tax liability was $9.1 million. Deferred tax liabilities relate to goodwill, intangibles, fixed asset depreciation, and prepaid expenses. Net non-current deferred tax liabilities are recorded in "Other non-current liabilities" on the Condensed Consolidated Balance Sheet as of March 31, 2016 (unaudited) and December 31, 2015.

Income Taxes

3 Months Ended

Mar. 31, 2016

10. Income Taxes

The Company files income tax returns in the U.S. federal jurisdiction and various state and foreign jurisdictions. The Internal Revenue Service (the "IRS") has completed examinations of the Company's U.S. income tax returns or the statute of limitations has passed on returns for the years through 2010. The Company's 2011, 2012 and 2013 U.S. income tax returns are currently under examination by the IRS. The IRS has sought to disallow certain research credits on the Company's 2011 and 2012 U.S. income tax returns. The Company is actively appealing the IRS's initial findings. The Company believes the research credits taken are appropriate and intends to vigorously defend its position. The amount of adjustment, if any, and the timing of such adjustment is not reasonably estimable at this time.

Under the provisions of the ASC Subtopic 740-10-25, Income Taxes - Recognition, the Company had an unrecognized tax benefit of $1.1 million as of March 31, 2016.

The Company's effective tax rate was 31.1% for the three months ended March 31, 2016 compared to 34.6% for the three months ended March 31, 2015. The decrease in the effective rate is primarily due to the research and development tax credit, which was not re-enacted by Congress for the three months ended March 31, 2015, but was adopted in December 2015 and therefore favorably impacted the current year quarter. The rate was also favorably impacted by the early adoption of ASU No. 2016-09. See Note 12, Recent Accounting Pronouncements, for additional information regarding the adoption of ASU No. 2016-09. As of March 31, 2016, the Company's net non-current deferred tax liability was $9.1 million. Deferred tax liabilities relate to goodwill, intangibles, fixed asset depreciation, and prepaid expenses. Net non-current deferred tax liabilities are recorded in "Other non-current liabilities" on the Condensed Consolidated Balance Sheet as of March 31, 2016 (unaudited) and December 31, 2015.