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Loans and financing - Summary of Changes in Loans and Financing (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of detailed information about borrowings [abstract]      
At January 1 $ 6,359 $ 11,030  
Loans from acquisition of subsidiaries 8,038 164  
Repayment Of Loans To Third Party At The Acquisition Date (11,002) (2,999)  
Interest charged 94 208  
Interest paid (104) (186) $ (267)
Basis adjustment on the fair value hedge 333 582  
Exchange rate effect (439) (2,440)  
At December 31 $ 3,279 $ 6,359 $ 11,030