Income Taxes	6 Months Ended
Jun. 30, 2015
Income Taxes [Abstract]
Income Taxes	9. Income Taxes During the first six months of 2015, income tax expense was $8.1 million, or 24.3% of pre-tax income, compared with $7.7 million, or 24.2% of pre-tax income, in the prior-year same period. The tax expense, as a percentage of pre-tax income, is lower than the U.S. federal statutory income tax rate of 35% primarily as a result of foreign statutory rate differences and the net impact of the amount of pre-tax losses in jurisdictions for which no tax benefit is recognized in proportion to the amount of pre-tax income in jurisdictions with no tax expense due to the utilization of fully valued tax attributes.

Income Taxes

6 Months Ended

Jun. 30, 2015

9. Income Taxes

During the first six months of 2015, income tax expense was $8.1 million, or 24.3% of pre-tax income, compared with $7.7 million, or 24.2% of pre-tax income, in the prior-year same period. The tax expense, as a percentage of pre-tax income, is lower than the U.S. federal statutory income tax rate of 35% primarily as a result of foreign statutory rate differences and the net impact of the amount of pre-tax losses in jurisdictions for which no tax benefit is recognized in proportion to the amount of pre-tax income in jurisdictions with no tax expense due to the utilization of fully valued tax attributes.