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Stock-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Summary of Stock-Based Compensation Expense Total stock-based compensation expense was recognized in the condensed consolidated statements of operations and comprehensive loss as follows (in thousands):

 

 

 

Three Months Ended September 30,

 

 

Nine Months Ended September 30,

 

 

 

2021

 

 

2020

 

 

2021

 

 

2020

 

Research and development

 

$

7,949

 

 

$

3,075

 

 

$

21,087

 

 

$

7,179

 

General and administrative

 

 

6,636

 

 

 

2,927

 

 

 

19,626

 

 

 

6,755

 

Total stock-based compensation

 

$

14,585

 

 

$

6,002

 

 

$

40,713

 

 

$

13,934