Income Taxes	9 Months Ended
Sep. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We accrued interest expense of $26 thousand and $39 thousand during the three-month periods ended September 30, 2018 and September 30, 2017, respectively, and $79 thousand and $142 thousand during the nine-month periods ended September 30, 2018 and September 30, 2017, 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, 2018, is $2.4 million. If recognized, $1.9 million of unrecognized tax benefits would impact our effective tax rate. Interest of $0.3 million has been reflected as a component of the total liability. We expect no significant increases or decreases for uncertain tax positions during the next twelve months. The Tax Cuts and Jobs Act of 2017 (the “Tax Act”) was enacted on December 22, 2017, and lowered the federal corporate income tax rate to 21% from 35% effective January 1, 2018. The Company recognized the provisional tax impact related to the revaluation of deferred income tax assets and liabilities in accordance with SEC Staff Accounting Bulletin No. 118 and included the amount in its consolidated financial statements for the year ended December 31, 2017. The ultimate impact may differ from the provisional amount due to, among other things, additional analysis, change in interpretations and assumptions the Company has made, and additional regulatory guidance that may be issued. During the three and nine months ended September 30, 2018, we did not make any adjustments to the provisional amounts recorded as of December 31, 2017. The accounting is expected to be completed during fourth quarter 2018. We file U.S. federal income tax returns, as well as income tax returns in various states and several foreign jurisdictions. The years 2015 through 2017 are open for examination by the Internal Revenue Service (“IRS”), and various years are open for examination by state and foreign tax authorities. State and foreign jurisdictional statutes of limitations generally range from three to four years.

Income Taxes

We accrued interest expense of $26 thousand and $39 thousand during the three-month periods ended September 30, 2018 and September 30, 2017, respectively, and $79 thousand and $142 thousand during the nine-month periods ended September 30, 2018 and September 30, 2017, 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, 2018, is $2.4 million. If recognized, $1.9 million of unrecognized tax benefits would impact our effective tax rate. Interest of $0.3 million has been reflected as a component of the total liability. We expect no significant increases or decreases for uncertain tax positions during the next twelve months.

The Tax Cuts and Jobs Act of 2017 (the “Tax Act”) was enacted on December 22, 2017, and lowered the federal corporate income tax rate to 21% from 35% effective January 1, 2018. The Company recognized the provisional tax impact related to the revaluation of deferred income tax assets and liabilities in accordance with SEC Staff Accounting Bulletin No. 118 and included the amount in its consolidated financial statements for the year ended December 31, 2017. The ultimate impact may differ from the provisional amount due to, among other things, additional analysis, change in interpretations and assumptions the Company has made, and additional regulatory guidance that may be issued. During the three and nine months ended September 30, 2018, we did not make any adjustments to the provisional amounts recorded as of December 31, 2017. The accounting is expected to be completed during fourth quarter 2018.

We file U.S. federal income tax returns, as well as income tax returns in various states and several foreign jurisdictions. The years 2015 through 2017 are open for examination by the Internal Revenue Service (“IRS”), and various years are open for examination by state and foreign tax authorities. State and foreign jurisdictional statutes of limitations generally range from three to four years.