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Revenue Recognition - Performance Obligations - Additional Information (Details)
 12 Months Ended
Jul. 27, 2020
obligation
Dec. 31, 2021
Option
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]    
Reimbursement period of costs incurred for quarter ended   75 days
Number of additional customer options | Option   2
GSK    
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]    
Reimbursement period of costs incurred for quarter ended   75 days
GSK Collaboration Agreement    
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]    
Number of performance obligations | obligation 6  
Pol Theta Program    
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]    
Reimbursement period of costs incurred for quarter ended   90 days
WRN Program    
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]    
Reimbursement period of costs incurred for quarter ended   75 days
Determination period of costs incurred   75 days