Quarterly report pursuant to Section 13 or 15(d)

Other Income (Expense), net (Details)

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Other Income (Expense), net (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Other expense, net        
Interest income $ 318 $ 0 $ 324 $ 413
Interest expense (1,649) (1,042) (5,250) (3,291)
Foreign currency gain (loss) 572 1,123 337 1,591
Other income 33 69 (355) 19
Total other income (expense), net $ (726) $ 150 $ (4,944) $ (1,268)