Annual report pursuant to Section 13 and 15(d)

Related-Party Transactions - Additional Information (Details)

v3.20.4
Related-Party Transactions - Additional Information (Details) - Maximum
Jun. 16, 2020
May 14, 2020
Merck | Sutro Biopharma    
Related Party Transaction [Line Items]    
Equity interest percentage   10.00%
Vaxcyte, Inc.    
Related Party Transaction [Line Items]    
Percentage common stock ownership interest 4.00%