Income Taxes	3 Months Ended
Mar. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	8. Income Taxes During the three months ended March 31, 2016, the Company recognized an income tax expense of $2,814 on pre-tax income of $8,528, representing an effective income tax rate of 33.0%, compared to an income tax expense of $3,958 on pre-tax income of $9,918, representing an effective tax rate of 39.9% during the three months ended March 31, 2015. The effective tax rates for all periods presented also differ from the federal U.S. statutory rate primarily due to a benefit from permanent deductions related to credits for domestic production activities and the impact of state and foreign income taxes.

Income Taxes

3 Months Ended

Mar. 31, 2016

8. Income Taxes

During the three months ended March 31, 2016, the Company recognized an income tax expense of $2,814 on pre-tax income of $8,528, representing an effective income tax rate of 33.0%, compared to an income tax expense of $3,958 on pre-tax income of $9,918, representing an effective tax rate of 39.9% during the three months ended March 31, 2015.

The effective tax rates for all periods presented also differ from the federal U.S. statutory rate primarily due to a benefit from permanent deductions related to credits for domestic production activities and the impact of state and foreign income taxes.