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Employee benefits - Additional Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Jul. 01, 2005
IFRS Statement [Line Items]        
Labour And Social Welfare $ 1,695 $ 707 $ 1,489  
Wages and salaries 126,976 88,149 80,617  
Percentage Of Wages Contribution To Employee       6.00%
Post-employment benefit expense, defined contribution plans 20      
Deposits from banks 4,065      
Defined Contribution Plans [Member]        
IFRS Statement [Line Items]        
Other Foreign Subsidiaries Pension Expenses 617 497 434  
Wages and salaries $ 3,683 $ 3,330 $ 3,316