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Geographic information (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2021
USD ($)
segment
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Segment Reporting Information [Line Items]      
Number of operating segments | segment 1    
Total assets $ 1,938,056 $ 2,208,278  
Fixed assets, net 52,585 33,831  
Revenue 538,593 380,766 $ 306,980
United States      
Segment Reporting Information [Line Items]      
Total assets 1,744,225 2,073,404  
Fixed assets, net 51,626 32,352  
Revenue 297,005 186,396  
Non-US      
Segment Reporting Information [Line Items]      
Total assets 193,831 134,874  
Fixed assets, net 959 1,479  
Revenue $ 241,588 $ 194,370