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Equity (Tables)
 12 Months Ended
Dec. 31, 2020
Disclosure of classes of share capital [abstract]  
Schedule of Composition of Share Capital
Composition of share capital

   
December 31, 2020
    
December 31, 2019
    
December 31, 2018
  
         
Issued and
          
Issued and
    
   
Issued and
  
   
Authorized
    
Outstanding(1)
    
Authorized
    
outstanding(1)
     Authorized    
Outstanding
  

 
Number of shares
  
Ordinary shares
 Of NIS 10.00 par value each
    
17,000,000
      
12,652,094
(1)
    
17,000,000
      
11,479,094
(1)
    
17,000,000
      
10,675,508
(1)


(1)
Net of treasury shares as follows: 258,046 Ordinary shares as of December 31, 2019, 2018 and 2017, all of which have been purchased according to share buyback programs that were authorized the Company's Board of Directors.