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DEFERRED REVENUES (Tables)
 12 Months Ended
Dec. 31, 2020
Revenue from Contract with Customer [Abstract]  
Deferred Revenues
Deferred revenues consisted of the following:
 
                             
    
December 31,
  
    
2020
     
2019
  
Security subscriptions
  
$
 678.5
 
  
$
 613.1
 
Software updates and maintenance
  
 
 775.4
 
  
 
 757.4
 
Other
  
 
 28.0
 
  
 
 16.2
 
  
 
 
     
 
 
  
  
$
     1,481.9
 
  
$
     1,386.7