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Other Income (Expense), Net
 6 Months Ended
Jun. 30, 2017
Other Income and Expenses [Abstract]  
Other Income (Expense), Net
Other Income (Expense), Net
Other income (expense), net consists of the following:
 
 
THREE MONTHS ENDED 
 JUNE 30,
 
SIX MONTHS ENDED 
 JUNE 30,
(in thousands)
2017
 
2016
 
2017
 
2016
Interest and amortization expense
$
(604
)
 
$
(622
)
 
$
(1,201
)
 
$
(1,310
)
Foreign exchange loss
(391
)
 
(3
)
 
(402
)
 
(9
)
Investment income
377

 
143

 
673

 
289

 
$
(618
)
 
$
(482
)
 
$
(930
)
 
$
(1,030
)

The foreign exchange loss during the three and six month periods ended June 30, 2017 is primarily related to the remeasurement of the Company’s Euro-denominated monetary liability related to its build-to-suit lease obligation (Note 8), which is held by a subsidiary with a U.S. dollar functional currency.