v3.25.1
Stock-Based Compensation - Narrative (Details)
$ in Thousands
 1 Months Ended 3 Months Ended
Mar. 31, 2025
USD ($)
shares
Jan. 31, 2023
shares
Jan. 31, 2022
shares
Aug. 31, 2021
shares
Jun. 30, 2021
performanceCondition
shares
Mar. 31, 2025
USD ($)
shares
Mar. 31, 2024
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Total stock-based compensation expense | $           $ 12,333 $ 14,048
2021 Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Annual increase in shares authorized, percent       5.00%      
Number of additional shares authorized   6,036,000          
The Plans | Series A common stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Options approved for grant (in shares) 29,677,000         29,677,000  
The Founders Grant              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Total stock-based compensation expense | $           $ 2,800 7,300
Stock options or restricted stock units (RSUs) | 2021 Incentive Award Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period       4 years      
Employee Stock Purchase Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Options approved for grant (in shares) 6,326,000         6,326,000  
Number of additional shares authorized     1,207,000 16,615,000      
Restricted stock units (RSUs)              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Units vested (in shares)           616,000  
Granted (in shares)           1,218,000  
Vested and not yet released (in shares)           21,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grant Date Fair Value | $ $ 5,700         $ 5,700  
Restricted stock units (RSUs) | 2021 Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period 3 years            
Total stock-based compensation expense | $           $ 4,100 5,000
Restricted stock units (RSUs) | 2021 Plan | Series A common stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Granted (in shares) 236,000            
Restricted stock units (RSUs) | The Plans              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Non-vested award, cost not yet recognized, period for recognition           1 year 6 months  
Cost not yet recognized, outstanding awards | $ $ 51,000         $ 51,000  
Restricted stock units (RSUs) | The Founders Grant              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period         5 years    
Granted (in shares)         1,885,000    
Grant date fair value | $           $ 66,900  
Vested and not yet released (in shares)           899,000  
Performance stock units (PSUs)              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award expiration period         10 years    
Number of performance conditions | performanceCondition         2    
Terms of award, stock price hurdle period         10 years    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grant Date Fair Value | $ $ 9,600         $ 9,600  
Performance stock units (PSUs) | Monte Carlo simulation              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Grant date fair value | $           $ 128,800  
Performance stock units (PSUs) | Series B common stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of shares receivable per share based payments award (in shares)         1    
Performance stock units (PSUs) | 2021 Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period 3 years            
Performance stock units (PSUs) | 2021 Plan | Series A common stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Granted (in shares) 236,000            
Performance stock units (PSUs) | The Plans              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Non-vested award, cost not yet recognized, period for recognition           1 year 4 months 24 days  
Cost not yet recognized, outstanding awards | $ $ 9,400         $ 9,400  
Performance stock units (PSUs) | The Founders Grant              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Granted (in shares)         4,398,000    
Equity Settled Bonuses              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Total stock-based compensation expense | $           4,500  
Charitable Donor Advised Funds              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Total stock-based compensation expense | $           $ 700 $ 700