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Other accounts receivable
 12 Months Ended
Dec. 31, 2017
Other accounts receivable [Abstract]  
Other accounts receivable
8
Other accounts receivable
 
Other accounts receivable at December 31, 2017 and 2016, are summarized as follows:
 
  
2017
  
2016
 
Recoverable taxes
 
$
175,268
  
$
28,673
 
Services for port, maritime and other operations
  
97,328
   
168,105
 
Insurance claims
  
958
   
3,764
 
Employees
  
8,561
   
8,133
 
Others
  
37,078
   
32,903
 
  
$
319,193
  
$
241,578