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Note 5 - Business Segment Reporting - Capital Expenditures by Operating Segments (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Capital expenditures $ 81,511 $ 112,387 $ 104,062
NLA [Member]      
Capital expenditures 6,426 10,800  
ESSA [Member]      
Capital expenditures 11,151 35,421  
MENA [Member]      
Capital expenditures 14,553 37,000  
APAC [Member]      
Capital expenditures 19,958 16,413  
Central [Member]      
Capital expenditures $ 29,423 $ 12,753