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Related Party Transactions - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jan. 19, 2022
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Dec. 13, 2021
Related Party Transaction [Line Items]              
Accounts payable, due to related party   $ 303   $ 303   $ 147  
Loss of change in fair value of the instrument       (156)      
PureTech              
Related Party Transaction [Line Items]              
Principal amount             $ 15,000
Repayment of debt $ 15,200            
PureTech | Management Services Expenses              
Related Party Transaction [Line Items]              
Research and development, including related party expenses   100 $ 100 300 $ 200    
Accounts payable, due to related party   100   100   100  
Notes payable           15,100  
Loss of change in fair value of the instrument       100      
PureTech | Royalty Expense              
Related Party Transaction [Line Items]              
Research and development, including related party expenses   $ 200 $ 100 300 $ 100    
SSD2              
Related Party Transaction [Line Items]              
Principal amount             $ 12,000
Loss of change in fair value of the instrument       $ 100      
Repayment of debt $ 12,100            
SSD2 | Management Services Expenses              
Related Party Transaction [Line Items]              
Notes payable           $ 12,100