v3.25.1
Stock-based Compensation - Narrative (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended
Jan. 01, 2025
shares
Nov. 16, 2023
USD ($)
grantee
$ / shares
shares
Jun. 30, 2021
Mar. 31, 2025
USD ($)
$ / shares
shares
Mar. 31, 2024
USD ($)
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Total stock-based compensation cost related to unvested awards not yet recognized | $       $ 41,000  
Expected weighted-average period compensation cost to be recognized       2 years 3 months 18 days  
Clinical development milestones, probable achievement (in shares)       1,500,000  
Total stock-based compensation expense | $       $ 6,024 $ 9,155
Stock option          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Weighted average grant date fair value (in dollars per share) | $ / shares       $ 0.41 $ 1.26
Performance-Based Stock Options          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Award expiration period       10 years  
Award performance period       3 years  
Service period from the milestone achievement date       1 year  
Performance-Based Stock Options | Achievement of applicable milestone          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Award vesting rights, percentage       50.00%  
Performance-Based Stock Options | Earlier of one year of service from achievement date and three-year performance period          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Award vesting rights, percentage       50.00%  
Performance Shares          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Award performance period       3 years  
Service period from the milestone achievement date       1 year  
Total stock-based compensation expense | $       $ 500 $ 100
Performance Shares | Achievement of applicable milestone          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Award vesting rights, percentage       50.00%  
Performance Shares | Earlier of one year of service from achievement date and three-year performance period          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Award vesting rights, percentage       50.00%  
2023 | Stock option          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Minimum exercise price of plan modifications (in dollars per share) | $ / shares   $ 2.37      
Original exercise price lower range (in dollars per share) | $ / shares   2.61      
Original exercise price upper range (in dollars per share) | $ / shares   $ 17.95      
Share-based payment arrangement, plan modification, number of grantees affected | grantee   200      
Shares repriced (in shares)   23,416,860      
Plan modification, exercise price (in dollars per share) | $ / shares   $ 1.87      
Incremental stock-based compensation expense of modifications | $   $ 8,900      
Minimum | Performance-Based Stock Options          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Performance period relative to total shareholder return       2 years  
Awards granted, percentage of target       0.00%  
Minimum | Performance Shares          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Performance period relative to total shareholder return       2 years  
Awards granted, percentage of target       0.00%  
Maximum | Performance-Based Stock Options          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Performance period relative to total shareholder return       3 years  
Awards granted, percentage of target       200.00%  
Maximum | Performance Shares          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Performance period relative to total shareholder return       3 years  
Awards granted, percentage of target       200.00%  
2021 Plan          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Number of additional shares authorized for issuance (in shares) 14,743,777        
Increase in proportion of common shares reserved for future issuance (as a percent) 5.00%        
Stock-based compensation (in shares)       0 0
Future issuance of common shares (in shares)       46,407,408  
2021 Plan | RSUs          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Vesting period     4 years    
2021 Plan | Stock option          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Vesting period     4 years    
2021 Plan | Performance Shares          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Vesting period     3 years    
2021 Plan | Maximum          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Award expiration period     10 years    
2021 ESPP          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Number of additional shares authorized for issuance (in shares) 0        
Purchase of common stock at discount (as a percent)     15.00%    
Employee purchase of shares, proportion of fair value (as a percent)     85.00%    
Future issuance of common shares (in shares)       5,046,445