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Stock compensation and other employee benefit plans - Additional Information (Details) - USD ($)
$ in Millions
1 Months Ended 12 Months Ended
Apr. 30, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period   4 years    
Employee and company contributions, amount   $ 0.6 $ 0.3 $ 0.0
Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Employee contributions percentage   100.00%    
Employee contributions percentage First   3.00%    
Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Employee contributions percentage Second   50.00%    
Employee contributions percentage final   2.00%    
2021 Stock Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of common stock outstanding 4.00%      
Number of common shares reserved for issuance 12,645,239      
2021 Employee Stock Purchase Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of accumulated payroll deductions   85.00%    
Common stock issued   0    
Restricted Stock Units (RSUs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period   4 years    
Restricted Stock Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period   4 years