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

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

 

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

Deferred revenue – current portion

      16,972        15,935  

Deferred revenue

      105,718        112,551  
  

 

 

     

 

 

  
     122,690        128,486  
  

 

 

     

 

 

  

 

*

See Note 3 for details regarding the restatement as a result of a change in accounting policy.