Income Taxes (Tables)

6 Months Ended

Jun. 30, 2018

Summary of Tax Returns Periods Subject to Examination by Federal, State and International Tax Authorities

The Company’s tax returns are subject to examination by federal, state and international tax authorities for the following periods:

Jurisdiction	Fiscal years subject to examination
United States – federal and state	2014-2017
Sweden	2011-2017
Germany	2017
Netherlands	2012-2017