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Intangible assets and goodwill (Details) - USD ($)
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Acquisition and disposal of subsidiaries in Russia    
Average useful economic life of intangible assets 4 years 4 years
CGU Lightmap LLC    
Acquisition and disposal of subsidiaries in Russia    
Percentage of change in EV/EBITDA multiple 10.00%  
Increase in recoverable amount due to change in EV/EBITDA multiple $ 520  
Decrease in recoverable amount due to change in EV/EBITDA multiple $ (520)