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Inventories - Summary (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Inventories [abstract]        
Raw materials $ 56,420 $ 47,501    
Finished goods 77,041 65,278 $ 79,758 $ 61,888
Others 0 11    
Current inventories $ 133,461 $ 112,790 [1]    
[1] Prior periods have been recast to reflect the Company's change in accounting policy for the reclassification within shareholders equity of the initial application of IAS 29 as explained in Note 34.1.