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OTHER EQUITY AND RESERVES (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Statement1 [Line Items]      
Treasury shares $ (11,870) $ (387)  
Share compensation reserve 4,777 3,954 $ 4,520
Hedging reserve 5,457 458  
Translation reserve (9,783) (8,749)  
Merger reserve (12,649) (18,354)  
Other reserves $ (24,068) $ (23,078)