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Stock-Based Compensation - Summary of Stock Option Activity (Details) - $ / shares
6 Months Ended
Jun. 30, 2022
Number of Shares  
Beginning balance (in shares) 2,961,195
Options granted (in shares) 2,953,059
Less:  
Options exercised (in shares) 566,583
Options forfeited (in shares) 1,316,107
Ending balance (in shares) 4,031,564
Exercisable at end of period (in shares) 1,427,681
Weighted Average Exercise Price  
Beginning balance (in dollars per share) $ 25.46
Granted (in dollars per share) 15.80
Less:  
Exercised (in dollars per share) 12.65
Forfeited (in dollars per share) 30.31
Ending balance (in dollars per share) 18.59
Exercisable, ending balance (in dollars per share) $ 22.60