Income taxes	3 Months Ended
Mar. 31, 2017
Income Tax Disclosure [Abstract]
Income taxes	14. Income taxes For the three months ended March 31, 2017, the Company’s income tax expense was $623, compared to $162 for the prior year period. The change in the income tax provision for the three months ended March 31, 2017 primarily related to a change in the geographical mix of income which increased taxable non-U.S. earnings before income taxes when compared to the prior year period. As of March 31, 2017 and December 31, 2016, the Company maintained a valuation allowance against its net deferred tax assets primarily attributable to operations in the United States, as the realization of such assets was not considered more likely than not. There were no changes to the Company’s unrecognized tax benefits during the three months ended March 31, 2017. The Company does not expect any significant changes to its unrecognized tax positions during the next twelve months. The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. No interest and penalties related to uncertain tax positions were recognized during the three months ended March 31, 2017.

Income taxes

3 Months Ended

Mar. 31, 2017

14. Income taxes

For the three months ended March 31, 2017, the Company’s income tax expense was $623, compared to $162 for the prior year period. The change in the income tax provision for the three months ended March 31, 2017 primarily related to a change in the geographical mix of income which increased taxable non-U.S. earnings before income taxes when compared to the prior year period.

As of March 31, 2017 and December 31, 2016, the Company maintained a valuation allowance against its net deferred tax assets primarily attributable to operations in the United States, as the realization of such assets was not considered more likely than not.

There were no changes to the Company’s unrecognized tax benefits during the three months ended March 31, 2017. The Company does not expect any significant changes to its unrecognized tax positions during the next twelve months.

The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. No interest and penalties related to uncertain tax positions were recognized during the three months ended March 31, 2017.