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Short-Term Investments (Tables)
9 Months Ended
Sep. 30, 2015
Investments Debt And Equity Securities [Abstract]  
Summary of Available-for-Sale Securities

The following table summarizes the available-for-sale securities held at September 30, 2015 (in thousands):

 

 

Amortized Cost

 

 

Unrealized Gains

 

 

Unrealized Losses

 

 

Fair Value

 

Certificates of deposit

$

25,000

 

 

$

-

 

 

$

-

 

 

$

25,000

 

Commercial paper

 

24,952

 

 

 

1

 

 

 

(6

)

 

$

24,947

 

Total

$

49,952

 

 

$

1

 

 

$

(6

)

 

$

49,947