Income Taxes	9 Months Ended
Sep. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We accrued interest expense of $58 thousand and $52 thousand during the three-month periods ended September 30, 2016, and September 30, 2015, respectively, and $185 thousand and $176 thousand during the nine-month periods ended September 30, 2016, and September 30, 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 September 30, 2016, is $6.2 million. If recognized, $4.0 million of unrecognized tax benefits would impact our effective tax rate. Interest of $1.0 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 and 2013 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. The IRS is currently performing 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

9 Months Ended

Sep. 30, 2016

We accrued interest expense of $58 thousand and $52 thousand during the three-month periods ended September 30, 2016, and September 30, 2015, respectively, and $185 thousand and $176 thousand during the nine-month periods ended September 30, 2016, and September 30, 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 September 30, 2016, is $6.2 million. If recognized, $4.0 million of unrecognized tax benefits would impact our effective tax rate. Interest of $1.0 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 and 2013 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. The IRS is currently performing an audit of our amended 2011 federal income tax return. State and foreign jurisdictional statutes of limitations generally range from three to four years.