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Revenue Recognition - Performance Obligations - Additional Information (Details) |  | 12 Months Ended
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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

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