Income Taxes	9 Months Ended
Sep. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes We file federal and state income tax returns in the U.S. and income tax returns in foreign jurisdictions. With a few minor exceptions, we are no longer subject to income tax examinations by any of the taxing jurisdictions for years prior to 2013. We currently have one foreign income tax examination in process. As of September 30, 2017 and December 31, 2016, unrecognized tax benefits related to federal, state and foreign jurisdictions were $0.5 million and $0.6 million, respectively; all of which may impact our effective tax rate, if recognized. The domestic unrecognized tax benefits are netted against their related noncurrent deferred tax assets that are carried forward as net operating losses and tax credits. When appropriate, we accrue penalties and interest related to unrecognized tax benefits through income tax expense. Included in the unrecognized tax benefits is $0.2 million of interest and penalties as of September 30, 2017 and December 31, 2016. During the nine months ended September 30, 2017, we released $0.2 million of tax reserves associated with items falling outside the statue of limitations and the closure of certain tax years for examination purposes. We are not aware of any events that could occur within the next twelve months that would have an impact on the amount of unrecognized tax benefits that would require a reserve. At September 30, 2017, due to cumulative losses and other factors, we continue to carry valuation allowances against the deferred tax assets primarily in the United Kingdom and Luxembourg. Additionally, we continue to carry valuation allowances related to certain state deferred assets that we believe to be more likely than not to expire before they can be utilized. We evaluate the need for valuation allowances in each of our jurisdictions on a quarterly basis.

Income Taxes

We file federal and state income tax returns in the U.S. and income tax returns in foreign jurisdictions. With a few minor exceptions, we are no longer subject to income tax examinations by any of the taxing jurisdictions for years prior to 2013. We currently have one foreign income tax examination in process.

As of September 30, 2017 and December 31, 2016, unrecognized tax benefits related to federal, state and foreign jurisdictions were $0.5 million and $0.6 million, respectively; all of which may impact our effective tax rate, if recognized. The domestic unrecognized tax benefits are netted against their related noncurrent deferred tax assets that are carried forward as net operating losses and tax credits. When appropriate, we accrue penalties and interest related to unrecognized tax benefits through income tax expense. Included in the unrecognized tax benefits is $0.2 million of interest and penalties as of September 30, 2017 and December 31, 2016.

During the nine months ended September 30, 2017, we released $0.2 million of tax reserves associated with items falling outside the statue of limitations and the closure of certain tax years for examination purposes. We are not aware of any events that could occur within the next twelve months that would have an impact on the amount of unrecognized tax benefits that would require a reserve.

At September 30, 2017, due to cumulative losses and other factors, we continue to carry valuation allowances against the deferred tax assets primarily in the United Kingdom and Luxembourg. Additionally, we continue to carry valuation allowances related to certain state deferred assets that we believe to be more likely than not to expire before they can be utilized. We evaluate the need for valuation allowances in each of our jurisdictions on a quarterly basis.