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Collaboration and License Agreements - Additional Information (Details) - USD ($)
1 Months Ended 3 Months Ended
Nov. 30, 2021
Dec. 31, 2019
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
China License Agreement | San Reno          
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]          
Consideration received as preferred shares $ 40,000,000.0        
Consideration received as warrants $ 1,200,000        
Revenue recognized     $ 2,700,000    
China License Agreement | San Reno | Maximum          
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]          
Progress-dependent milestone receivable     25,000,000.0    
AbbVie Agreement          
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]          
Common stock shares issued   2,000,000.0      
Proceeds from issuance of common stock   $ 6,700,000      
Milestone payment     0   $ 0
AbbVie Agreement | Maximum          
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]          
Contingent development, regulatory and commercial milestone payments     135,000,000.0    
Merck          
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]          
Revenue recognized       $ 10,000,000.0  
Merck | Maximum | Product Candidate          
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]          
Milestone amount eligible to receive for products or product candidates     287,000,000.0    
Merck | Maximum | Product          
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]          
Milestone amount eligible to receive for products or product candidates     135,000,000.0    
Lilly Agreement          
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]          
Revenue recognized         $ 400,000
Lilly Agreement | Maximum          
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]          
Milestone amount eligible to receive for products or product candidates     $ 464,900,000