Income Taxes	3 Months Ended
Mar. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Income tax expense was $1.7 million, or an effective income tax rate of 39.7%, for the three months ended March 31, 2018 compared to $2.0 million, or an effective income tax rate of 32.8%, for the three months ended March 31, 2017. The increase in the effective income tax rate in 2018 compared to 2017 is primarily due to a $0.9 million increase, or an effective income tax rate of 19.7%, to the provisional estimate recorded in the fourth quarter of 2017 relating to the one-time transition tax on the mandatory deemed repatriation of cumulative foreign earnings, imposed by the Tax Cuts and Jobs Act (the "Tax Act") that was enacted on December 22, 2017. The increase is partially offset by a decrease in the U.S. statutory tax rate from 35% to 21% and other discrete items. Excluding the discrete items included in tax expense in the first quarter of 2018, the Company's effective income tax rate was 25.9%. Income tax expense for the quarterly periods is based on an estimated annual effective tax rate which includes the U.S. federal, state and local, and non-U.S. statutory rates, permanent differences, and other items that may have an impact on income tax expense. The increase to the provisional estimate of the one-time transition tax on the mandatory deemed repatriation of cumulative foreign earnings during the first quarter of 2018 is the result of further analysis of earnings and profits related to the calculation of the transition tax. As we complete our analysis of the 2017 Tax Act, collect and prepare necessary data, and interpret any additional guidance issued by the U.S. Treasury Department, the IRS, and other standard-setting bodies, we may make adjustments to the provisional amounts. The Tax Act creates a new requirement that Global Intangible Low-Taxed Income (“GILTI”) earned by a controlled foreign corporation (“CFC”) must be included in the gross income of the U.S. shareholder. Because of the complexity of the new GILTI tax rules, we are continuing to evaluate these provisions of the Tax Act and whether taxes due on future U.S. inclusions related to GILTI should be recorded as a current-period expense when incurred, or factored into the company’s measurement of its deferred taxes. At March 31, 2018, because the Company is still evaluating the GILTI provisions, the Company has included tax expense related to GILTI for the current year in its estimated annual effective tax rate and has not provided additional GILTI on deferred items. An uncertain tax position taken or expected to be taken in a tax return is recognized in the financial statements when it is more likely than not (i.e., a likelihood of more than fifty percent) that the position would be sustained upon examination by tax authorities that have full knowledge of all relevant information. A recognized tax position is then measured at the largest amount of benefit that is greater than fifty percent likely of being realized upon ultimate settlement. Interest and penalties related to income taxes are accounted for as income tax expense. As of March 31, 2018, we had no uncertain tax positions reflected on our condensed consolidated balance sheet. The Company files income tax returns in U.S. federal, state and local jurisdictions, and various non-U.S. jurisdictions, and is subject to audit by tax authorities in those jurisdictions. Tax years 2014 through 2017 remain open to examination by these tax jurisdictions, and earlier years remain open to examination in certain of these jurisdictions which have longer statutes of limitations.

Income Taxes

Income tax expense was $1.7 million, or an effective income tax rate of 39.7%, for the three months ended March 31, 2018 compared to $2.0 million, or an effective income tax rate of 32.8%, for the three months ended March 31, 2017. The increase in the effective income tax rate in 2018 compared to 2017 is primarily due to a $0.9 million increase, or an effective income tax rate of 19.7%, to the provisional estimate recorded in the fourth quarter of 2017 relating to the one-time transition tax on the mandatory deemed repatriation of cumulative foreign earnings, imposed by the Tax Cuts and Jobs Act (the "Tax Act") that was enacted on December 22, 2017. The increase is partially offset by a decrease in the U.S. statutory tax rate from 35% to 21% and other discrete items. Excluding the discrete items included in tax expense in the first quarter of 2018, the Company's effective income tax rate was 25.9%. Income tax expense for the quarterly periods is based on an estimated annual effective tax rate which includes the U.S. federal, state and local, and non-U.S. statutory rates, permanent differences, and other items that may have an impact on income tax expense.

The increase to the provisional estimate of the one-time transition tax on the mandatory deemed repatriation of cumulative foreign earnings during the first quarter of 2018 is the result of further analysis of earnings and profits related to the calculation of the transition tax. As we complete our analysis of the 2017 Tax Act, collect and prepare necessary data, and interpret any additional guidance issued by the U.S. Treasury Department, the IRS, and other standard-setting bodies, we may make adjustments to the provisional amounts.

The Tax Act creates a new requirement that Global Intangible Low-Taxed Income (“GILTI”) earned by a controlled foreign corporation (“CFC”) must be included in the gross income of the U.S. shareholder. Because of the complexity of the new GILTI tax rules, we are continuing to evaluate these provisions of the Tax Act and whether taxes due on future U.S. inclusions related to GILTI should be recorded as a current-period expense when incurred, or factored into the company’s measurement of its deferred taxes. At March 31, 2018, because the Company is still evaluating the GILTI provisions, the Company has included tax expense related to GILTI for the current year in its estimated annual effective tax rate and has not provided additional GILTI on deferred items.

An uncertain tax position taken or expected to be taken in a tax return is recognized in the financial statements when it is more likely than not (i.e., a likelihood of more than fifty percent) that the position would be sustained upon examination by tax authorities that have full knowledge of all relevant information. A recognized tax position is then measured at the largest amount of benefit that is greater than fifty percent likely of being realized upon ultimate settlement. Interest and penalties related to income taxes are accounted for as income tax expense. As of March 31, 2018, we had no uncertain tax positions reflected on our condensed consolidated balance sheet. The Company files income tax returns in U.S. federal, state and local jurisdictions, and various non-U.S. jurisdictions, and is subject to audit by tax authorities in those jurisdictions. Tax years 2014 through 2017 remain open to examination by these tax jurisdictions, and earlier years remain open to examination in certain of these jurisdictions which have longer statutes of limitations.