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Investments (Tables)
 6 Months Ended
Jun. 30, 2018
Text block [abstract]  
Summary of Investments

Investments as of June 30, 2018, and December 31, 2017, consist of the following:

 

     Balance as per  
     June 30,
2018		      December 31,
2017		  
     (euros in thousands)  

Commercial paper

      17,715        15,527  

U.S. Treasury securities

      2,574        9,177  

Corporate fixed income bonds

      15,289        7,886  

Agency bond

      1,499        1,453  
  

 

 

     

 

 

  

Investments, current portion

      37,077        34,043  

Corporate fixed income bonds

      16,650        7,060  
  

 

 

     

 

 

  

Non-current investments

      16,650        7,060  
  

 

 

     

 

 

  

Total investments

      53,727        41,103