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Stockholders' Equity - Schedule of Stock-based Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Class Of Stock [Line Items]    
Stock-based compensation $ 3,632 $ 4,643
Research and Development Expense    
Class Of Stock [Line Items]    
Stock-based compensation 1,300 954
General and Administrative Expense    
Class Of Stock [Line Items]    
Stock-based compensation $ 2,332 $ 3,689