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Note 3 - Selling, General and Administrative Expenses
 12 Months Ended
Dec. 31, 2019
Statement Line Items [Line Items]  
Disclosure of general and administrative expense [text block]
3
 Selling, general and administrative expenses
  
    Year ended December 31,  
(all amounts in thousands of U.S. dollars)   2019     2018     2017  
                   
Services and fees    
153,773
      
128,090
      
132,301
  
Labor cost    
481,854
      
470,928
      
443,338
  
Depreciation of property, plant and equipment    
18,524
      
16,968
      
17,979
  
Amortization of intangible assets    
41,967
      
206,672
      
188,550
  
Depreciation of right-of-use assets    
15,564
      
-
      
-
  
Commissions, freight and other selling expenses    
441,442
      
491,555
      
339,759
  
Provisions for contingencies    
28,565
      
23,498
      
17,664
  
Allowances for doubtful accounts    
(16,256
 )    
1,751
      
(5,421
 )
Taxes    
110,876
      
71,110
      
56,826
  
Other    
89,665
      
99,404
      
81,061
  
     
1,365,974
      
1,509,976
      
1,272,057
  
From discontinued operations    
-
      
-
      
(2,041
 )
     
1,365,974
      
1,509,976
      
1,270,016