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Note 23 - Current Allowances and Provisions - Liabilities (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Sales risks [member]    
Statement Line Items [Line Items]    
Values at the beginning of the year $ 6,814 $ 11,396
Translation differences (28) (103)
Increase due to business combinations 505  
Additional/ reversals provisions 11,880 2,638
Reclassifications
Used (13,304) (7,117)
Values at the end of the year 5,867 6,814
Miscellaneous other provisions [member]    
Statement Line Items [Line Items]    
Values at the beginning of the year 17,469 20,934
Translation differences (570) (2,205)
Increase due to business combinations 8,000  
Additional/ reversals provisions (3,219) 6,463
Reclassifications (5,641) 2,406
Used (4,889) (10,129)
Values at the end of the year 11,150 17,469
Provision for current liabilities [member]    
Statement Line Items [Line Items]    
Values at the beginning of the year 24,283 32,330
Translation differences (598) (2,308)
Increase due to business combinations 8,505  
Additional/ reversals provisions 8,661 9,101
Reclassifications (5,641) 2,406
Used (18,193) (17,246)
Values at the end of the year $ 17,017 $ 24,283