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SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2021
Accounting Policies [Abstract]  
Summary of Annual Rate of Depreciation on Property and Equipment Depreciation is calculated using the straight-line method over the estimated useful lives of the assets at the following annual rates:
     
    
%
   
Computers and peripheral equipment
    33 - 50
Office furniture and equipment
    10 - 20
Building
    4
Leasehold improvements
    The shorter of term of the lease or the useful life of the asset
 
Weighted Average Assumptions Used to Estimate the Fair Value of Employee Stock Purchase Plans
The fair value of options granted and Employee Stock Purchase Plan in 2021, 2020 and 2019 is estimated at the date of grant using the following weighted average assumptions:
             
    
        Year ended December 31,        
Employee Stock Options
   
    2021    
  
    2020    
  
    2019    
       
Employee Stock Options
             
Expected volatility
    25.28%   23.63%   20.78%
Risk-free interest rate
    0.65%   0.32%   1.98%
Dividend yield
    0.0%   0.0%   0.0%
Expected term (years)
    4.22   4.15   4.11
       
Employee Stock Purchase Plan
             
              
Expected volatility
    22.44%   36.58%   18.59%
Risk-free interest rate
    0.24%   0.05%   0.8%
Dividend yield
    0.0%   0.0%   0.0%
Expected term (years)
    0.5   0.5   0.5