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Note 4 - Labor Costs - Labor Costs (Included in Cost of Sales and in Selling, General and Administrative Expenses) - Number of Employees (Details)
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Statement Line Items [Line Items]      
Number of employees 23,200 22,967 21,605
ARGENTINA      
Statement Line Items [Line Items]      
Number of employees 5,405 5,427 5,221
MEXICO      
Statement Line Items [Line Items]      
Number of employees 5,370 5,595 5,139
UNITED STATES      
Statement Line Items [Line Items]      
Number of employees 2,255 2,382 1,953
ITALY      
Statement Line Items [Line Items]      
Number of employees 2,144 2,155 2,088
ROMANIA      
Statement Line Items [Line Items]      
Number of employees 1,815 1,852 1,870
BRAZIL      
Statement Line Items [Line Items]      
Number of employees 1,360 1,287 1,382
COLOMBIA      
Statement Line Items [Line Items]      
Number of employees 1,040 1,082 1,003
CANADA      
Statement Line Items [Line Items]      
Number of employees 772 1,030 919
INDONESIA      
Statement Line Items [Line Items]      
Number of employees 616 554 506
JAPAN      
Statement Line Items [Line Items]      
Number of employees 400 399 410
Other geographical areas [member]      
Statement Line Items [Line Items]      
Number of employees 2,023 1,204 1,114