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Revenue Recognition (Tables)
9 Months Ended
Sep. 26, 2020
Revenue from Contract with Customer [Abstract]  
Summary of Activity of Deferred Revenue and Customer Advances
The following is a summary of the activity of the Company’s deferred revenue and customer advances for the nine months ended September 26, 2020 and September 28, 2019 (in thousands):
 
    
September 26,
2020
    
September 28,
2019
 
Balance at the beginning of the period
   $ 213,695      $ 204,257  
Recognition of revenue included in balance at beginning of the period
     (177,667      (174,929
Revenue deferred during the period, net of revenue recognized
     213,895        206,093  
  
 
 
    
 
 
 
Balance at the end of the period
   $ 249,923      $ 235,421  
  
 
 
    
 
 
 
Schedule of Amount of Deferred Revenue and Customer Advances
The amount of deferred revenue and customer advances equals the transaction price allocated to unfulfilled performance obligations for the period presented. Such amounts are expected to be recognized in the future as follows (in thousands):
 
    
September 26, 2020
 
Deferred revenue and customer advances expected to be recognized in:
  
One year or less
   $ 211,348  
13-24 months
     22,452  
25 months and beyond
     16,123  
  
 
 
 
Total
   $ 249,923