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Other Income (Expense), Net
 3 Months Ended
Mar. 31, 2016
Other Income and Expenses [Abstract]  
Other Income (Expense), Net
Other Income (Expense), Net
Other income (expense), net consists of the following:
 
 
THREE MONTHS ENDED 
 MARCH 31,
(in thousands)
2016
 
2015
Interest and amortization expense
$
(688
)
 
$
(617
)
Sale of New Jersey state tax benefit
—

 
2,898

Investment and other income, net
140

 
121

 
$
(548
)
 
$
2,402