Income Tax	9 Months Ended
Sep. 30, 2017
Income Tax Disclosure [Abstract]
Income Tax	13. Income Tax The effective income tax rates for the three and nine month periods ended September 30, 2017 was (0.8%) and (0.7%), respectively, and (1.4%) and (1.0%), respectively, for the prior year periods. Income tax expense recorded in each period was similar, with differences in pre-tax income causing the change in the effective tax rate. The difference between our effective tax rates and the U.S. federal statutory rate of 35% for the three and nine month periods ended September 30, 2017 and 2016 was primarily due to the recording of a valuation allowance against our net deferred tax assets. We are subject to income taxation in the United States, various states within the United States, Canada, Switzerland, Japan, Mexico, Brazil, Singapore, the United Kingdom, Hong Kong, Australia, China, France and Germany. With few exceptions, as of September 30, 2017, we are no longer subject to U.S. federal, state, local or foreign examinations by tax authorities for years before 2013. We record penalties and interest relating to uncertain tax positions in the income tax provision line item in the unaudited condensed consolidated statement of operations. No penalties or interest related to uncertain tax positions were recorded for the three and nine month periods ended September 30, 2017 and 2016. As of September 30, 2017 and December 31, 2016, we did not have a liability recorded for interest or potential penalties. We do not expect a change in the unrecognized tax benefits within the next 12 months.

13. Income Tax

The effective income tax rates for the three and nine month periods ended September 30, 2017 was (0.8%) and (0.7%), respectively, and (1.4%) and (1.0%), respectively, for the prior year periods. Income tax expense recorded in each period was similar, with differences in pre-tax income causing the change in the effective tax rate. The difference between our effective tax rates and the U.S. federal statutory rate of 35% for the three and nine month periods ended September 30, 2017 and 2016 was primarily due to the recording of a valuation allowance against our net deferred tax assets.

We are subject to income taxation in the United States, various states within the United States, Canada, Switzerland, Japan, Mexico, Brazil, Singapore, the United Kingdom, Hong Kong, Australia, China, France and Germany. With few exceptions, as of September 30, 2017, we are no longer subject to U.S. federal, state, local or foreign examinations by tax authorities for years before 2013.

We record penalties and interest relating to uncertain tax positions in the income tax provision line item in the unaudited condensed consolidated statement of operations. No penalties or interest related to uncertain tax positions were recorded for the three and nine month periods ended September 30, 2017 and 2016. As of September 30, 2017 and December 31, 2016, we did not have a liability recorded for interest or potential penalties.

We do not expect a change in the unrecognized tax benefits within the next 12 months.