v3.25.2
Strategic License and Research and Collaboration Agreements - Additional Information (Details)
£ in Millions
1 Months Ended 3 Months Ended 6 Months Ended
Jan. 31, 2025
USD ($)
May 31, 2024
USD ($)
Mar. 31, 2024
USD ($)
Oct. 31, 2023
USD ($)
Feb. 28, 2022
USD ($)
Nov. 30, 2015
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2025
GBP (£)
Jun. 30, 2024
USD ($)
May 01, 2025
USD ($)
Dec. 31, 2024
USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]                          
Research and development expenses             $ 38,724,000 $ 48,628,000 $ 90,875,000   $ 94,385,000    
Fund received upon completion of certain development milestone $ 1,500,000                        
2015 TSRI License Agreement                          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]                          
Milestones achieved             0   0        
Milestone Payments       $ 300,000                  
Accrued Royalties             0   $ 0        
2015 TSRI License Agreement | Maximum                          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]                          
Development and regulatory milestone payments           $ 1,500,000              
Commercial milestone payments           $ 3,500,000              
Amgen Research and Collaboration Agreement                          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]                          
Collaboration agreement termination description                 The Amgen Collaboration Agreement automatically terminated upon its third anniversary in September 2024. The Amgen Collaboration Agreement automatically terminated upon its third anniversary in September 2024.      
Related party transaction obligation with related party             0   $ 0     $ 6,300,000 $ 6,300,000
Research and development expenses             0 0 $ 6,300,000   0    
Vanderbilt Research Agreement                          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]                          
Research agreement expiry date                 2023-09 2023-09      
First Vanderbilt Research Agreement                          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]                          
Research and collaboration agreement quarterly payments         $ 1,700,000                
Second Vanderbilt Research Agreement                          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]                          
Research agreement expiry date                 2025-03 2025-03      
Second Vanderbilt Research Agreement | Maximum                          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]                          
Research and collaboration agreement payments   $ 600,000                      
Parkinson's Research Ventures Funding Agreement                          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]                          
Research and development expenses             $ 1,100,000 $ 200,000 $ 1,200,000   $ 200,000    
Payments for execution of agreement     $ 1,100,000                    
Maximum repayment amount agreed to pay. | £                   £ 8.4      
Parkinson's Research Ventures Funding Agreement | Maximum                          
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]                          
Funds provided for preclinical research and development activities                 $ 2,600,000