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OTHER ACCOUNTS RECEIVABLE AND PREPAID EXPENSES (Tables)
 12 Months Ended
Dec. 31, 2016
Prepaid Expense and Other Assets [Abstract]  
Schedule of other accounts receivable and prepaid expenses
   
December 31,
  
   
2015
    
2016
  
             
Government authorities
  
$
6,219
    
$
7,856
  
Advances to suppliers
    
3,593
      
668
  
Deferred charges and prepaid expenses
    
8,379
      
4,304
  
Financial institutions
    
3,411
      
3,493
  
Other
    
2,177
      
755
  
                 
   
$
23,779
    
$
17,076