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Other Income (Expense), Net
 9 Months Ended
Sep. 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 
 SEPTEMBER 30,
 
NINE MONTHS ENDED 
 SEPTEMBER 30,
(in thousands)
2017
 
2016
 
2017
 
2016
Interest and amortization expense
$
(597
)
 
$
(600
)
 
$
(1,799
)
 
$
(1,910
)
Foreign exchange loss
(163
)
 
(4
)
 
(565
)
 
(14
)
Investment income
619

 
144

 
1,293

 
434

 
$
(141
)
 
$
(460
)
 
$
(1,071
)
 
$
(1,490
)

The foreign exchange loss during the three and nine months ended September 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.