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Deferred Revenue and Customer Advances
 9 Months Ended
Sep. 28, 2014
Deferred Revenue and Customer Advances

G. Deferred Revenue and Customer Advances

Deferred revenue and customer advances consist of the following and are included in short and long-term deferred revenue and customer advances on the balance sheet:

 

     September 28,
2014		      December 31,
2013		  
     (in thousands)  

Extended warranty

    $ 43,497       $ 34,909   

Equipment maintenance and training

      27,703         22,455   

Customer advances

      5,041         4,825   

Undelivered elements

      7,185         6,971   
  

 

 

     

 

 

  

Total deferred revenue and customer advances

    $ 83,426       $ 69,160