Revenue Recognition - Performance Obligations - Additional Information (Details) $ in Millions			6 Months Ended
	Jan. 31, 2022 USD ($)	Jul. 27, 2020 Obligation	Jun. 30, 2022 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 under the MAT2A program | Option			2
MAT2A Supply
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Revenue recognized | $	$ 2.4
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