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Note 22 - Other Liabilities - Plan Assets (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disclosure of defined benefit plans [line items]    
Values at the beginning of the year $ 99,000  
At the end of the year 82,400 $ 99,000
Fair value of funded post-employment benefits [member]    
Disclosure of defined benefit plans [line items]    
Values at the beginning of the year (145,160) (132,438)
Translation differences (1,729) (4,137)
Return on plan assets (4,411) (5,018)
Remeasurements (10,396) (10,507)
Contributions paid to the plan (5,017) (3,589)
Benefits paid from the plan (9,266) (10,259)
Other 112 270
At the end of the year (157,335) (145,160)
Funded post-employment benefits [member]    
Disclosure of defined benefit plans [line items]    
Values at the beginning of the year 160,412 146,885
Translation differences (2,148) (4,542)
Benefits paid from the plan (9,266) (10,259)
Other (869)
At the end of the year $ 176,309 $ 160,412
Equity instruments 49.30% 49.00%
Debt instruments 46.80% 47.00%
Others 3.90% 4.00%