Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Stock-Based Compensation Expense (Detail)

v3.21.2
Stock Based Compensation - Stock-Based Compensation Expense (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Total stock-based compensation $ 4,513 $ 3,050 $ 8,579 $ 5,242
Research and Development        
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Total stock-based compensation 2,161 1,703 4,414 2,849
General and Administrative        
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]        
Total stock-based compensation $ 2,352 $ 1,347 $ 4,165 $ 2,393