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Other Income (Expense), Net
 3 Months Ended
Mar. 31, 2015
Other Income and Expenses [Abstract]  
Other Income, Net
Other Income (Expense), Net
Other income (expense), net consists of the following:
 
 
THREE MONTHS ENDED
MARCH 31,
(in thousands)
2015
 
2014
Interest and amortization expense
$
(617
)
 
$
—

Sale of New Jersey state tax benefit
2,898

 
2,288

Investment and other income, net
121

 
23

 
$
2,402

 
$
2,311