Income Taxes	3 Months Ended
Mar. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes For the three-month period ended March 31, 2016, there were no material changes to the total amount of unrecognized tax benefits. We accrued interest expense of $52 thousand and $59 thousand during the three-month periods ended March 31, 2016 and March 31, 2015, respectively, excluding the reversal of accrued interest related to adjustments for the remeasurement of uncertain tax positions. Our total gross liability for unrecognized tax benefits at March 31, 2016, is $7.7 million. If recognized, $5.0 million of unrecognized tax benefits would impact our effective tax rate. Interest of $1.4 million has been reflected as a component of the total liability. We expect no other significant increases or decreases for uncertain tax positions during the next twelve months. We file U.S. federal income tax returns, as well as income tax returns in various states and several foreign jurisdictions. The years 2011 through 2015 are open for examination by the Internal Revenue Service (“IRS”), and various years are open for examination by state and foreign tax authorities. In December 2015, we were notified that the IRS will perform an audit of our amended 2011 federal income tax return. State and foreign jurisdictional statutes of limitations generally range from three to four years.

Income Taxes

3 Months Ended

Mar. 31, 2016

For the three-month period ended March 31, 2016, there were no material changes to the total amount of unrecognized tax benefits. We accrued interest expense of $52 thousand and $59 thousand during the three-month periods ended March 31, 2016 and March 31, 2015, respectively, excluding the reversal of accrued interest related to adjustments for the remeasurement of uncertain tax positions. Our total gross liability for unrecognized tax benefits at March 31, 2016, is $7.7 million. If recognized, $5.0 million of unrecognized tax benefits would impact our effective tax rate. Interest of $1.4 million has been reflected as a component of the total liability. We expect no other significant increases or decreases for uncertain tax positions during the next twelve months.

We file U.S. federal income tax returns, as well as income tax returns in various states and several foreign jurisdictions. The years 2011 through 2015 are open for examination by the Internal Revenue Service (“IRS”), and various years are open for examination by state and foreign tax authorities. In December 2015, we were notified that the IRS will perform an audit of our amended 2011 federal income tax return. State and foreign jurisdictional statutes of limitations generally range from three to four years.