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Other Income (Expense), Net
 9 Months Ended
Sep. 30, 2015
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)
2015
 
2014
 
2015
 
2014
Interest and amortization expense
$
(629
)
 
$
—

 
$
(1,868
)
 
$
—

Sale of New Jersey state tax benefit
—

 
—

 
2,898

 
2,288

Investment and other income, net
106

 
27

 
344

 
79

 
$
(523
)
 
$
27

 
$
1,374

 
$
2,367