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Equity Incentive Plan - Summary of Stock-Based Compensation Expense related to Stock-Based Payment Awards Granted (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Stock-based compensation expense $ 11,198 $ 11,236 $ 32,466 $ 33,963
Research and Development Expense        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Stock-based compensation expense 4,921 4,521 13,906 14,130
General and Administrative Expense        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Stock-based compensation expense 2,932 2,836 8,717 8,414
Selling and Marketing Expense        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Stock-based compensation expense $ 3,345 $ 3,879 $ 9,843 $ 11,419