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Related Party Transactions - Additional Information (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Jul. 31, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Apr. 30, 2019
Related Party Transaction [Line Items]          
Related Party Transaction, Expenses from Transactions with Related Party   $ 300 $ 400 $ 400  
Vesting of restricted common stock (in shares)   537,633 537,635 537,635  
Common Stock Shares Issued   48,511,735 3,123,424    
Common Stock Value   $ 49 $ 3    
Issuance of common stock from initial public offering, net of issuance costs of $25,098   281,584      
Research and development expense   68,202 35,371 $ 11,144  
Option And License Issue Fees   200      
Maximum          
Related Party Transaction [Line Items]          
Lease Rent Payment   100   $ 100  
Beam | Research and Development          
Related Party Transaction [Line Items]          
Research and development expense     300    
Beam | Collaboration And License Agreement          
Related Party Transaction [Line Items]          
Common Stock Shares Issued         276,075
Common Stock Value         $ 300
Out-of-pocket costs incurred $ 100        
Beam | Materials Exchange Agreement | Research and Development          
Related Party Transaction [Line Items]          
Research and development expense   200 200    
Officer [Member] | Option License Agreement And Patent License Agreement | Research and Development          
Related Party Transaction [Line Items]          
Annual license fee   $ 100 $ 100