Income Taxes	6 Months Ended
Jun. 30, 2015
Income Tax [Abstract]
Income Taxes Disclosure [Text Block]	17. Income Tax Income tax was an approximately $0.8 million benefit and $0.2 million expense for the three months ended June 30, 2015 and 2014, respectively. The increased tax benefit for the three months ended June 30, 2015 reflects the incremental benefit recorded for the six months ended June 30, 2015 associated with actual results for the six-month period, as described below. The effective income tax rate was 19.5% for the three months ended June 30, 2014. Discrete items included in the tax benefit for the three months ended June 30, 2015 included incentive stock option exercises partially offset by acquisition costs, the net of which was not material. Tax expense for the three months ended June 30, 2014 included a discrete item for the exercise of incentive stock options. Income tax was an approximately $1.1 million benefit and $0.5 million expense for the six months ended June 30, 2015 and 2014, respectively. The effective income tax rate was 53.1% for the six months ended June 30, 2015, compared with 23.9% for the same period in 2014. The tax benefit for the six months ended June 30, 2015 was based on the actual results for the six-month period rather than an effective tax rate estimated for the entire year. The Company determined that using a year-to-date approach resulted in a better estimate of income tax expense based on its revised 2015 forecast of pre-tax income, mix of income across several jurisdictions with different statutory tax rates as well as the impact of permanent differences on its revised forecast of pre-tax income. The difference between the Company’s effective tax rate year over year was primarily attributable the use of a year-to-date approach at June 30, 2015, the impact of increased research and development tax incentives and incentive stock option exercises on lower pre-tax earnings in 2015 as well as the mix of earnings between its domestic and foreign businesses, partially offset by nondeductible acquisition costs incurred versus 2014.

Income Taxes

6 Months Ended

Jun. 30, 2015

17. Income Tax

Income tax was an approximately $0.8 million benefit and $0.2 million expense for the three months ended June 30, 2015 and 2014, respectively. The increased tax benefit for the three months ended June 30, 2015 reflects the incremental benefit recorded for the six months ended June 30, 2015 associated with actual results for the six-month period, as described below. The effective income tax rate was 19.5% for the three months ended June 30, 2014. Discrete items included in the tax benefit for the three months ended June 30, 2015 included incentive stock option exercises partially offset by acquisition costs, the net of which was not material. Tax expense for the three months ended June 30, 2014 included a discrete item for the exercise of incentive stock options.

Income tax was an approximately $1.1 million benefit and $0.5 million expense for the six months ended June 30, 2015 and 2014, respectively. The effective income tax rate was 53.1% for the six months ended June 30, 2015, compared with 23.9% for the same period in 2014. The tax benefit for the six months ended June 30, 2015 was based on the actual results for the six-month period rather than an effective tax rate estimated for the entire year. The Company determined that using a year-to-date approach resulted in a better estimate of income tax expense based on its revised 2015 forecast of pre-tax income, mix of income across several jurisdictions with different statutory tax rates as well as the impact of permanent differences on its revised forecast of pre-tax income. The difference between the Company’s effective tax rate year over year was primarily attributable the use of a year-to-date approach at June 30, 2015, the impact of increased research and development tax incentives and incentive stock option exercises on lower pre-tax earnings in 2015 as well as the mix of earnings between its domestic and foreign businesses, partially offset by nondeductible acquisition costs incurred versus 2014.