Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation - Summary of Stock Option Activity (Detail)

v3.21.2
Stock Based Compensation - Summary of Stock Option Activity (Detail) - $ / shares
9 Months Ended
Sep. 30, 2021
Number of shares  
Beginning balance (in shares) 3,785,941
Options granted (in shares) 887,332
Less:  
Options exercised (in shares) 931,954
Options canceled or expired (in shares) 226,411
Ending balance (in shares) 3,514,908
Exercisable at June 30, 2021 (in shares) 1,758,830
Weighted Average Exercise Price  
Weighted average exercise price, beginning balance (in dollars per share) $ 15.21
Weighted average exercise price, granted (in dollars per share) 48.19
Less:  
Weighted average exercise price, exercised (in dollars per share) 10.85
Weighted average exercise price, canceled or expired (in dollars per share) 31.73
Weighted average exercise price, ending balance (in dollars per share) 23.63
Weighted average exercise price, exercisable, ending balance (in dollars per share) $ 12.07