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)

v3.20.2
Stock Based Compensation - Summary of Stock Option Activity (Detail) - $ / shares
6 Months Ended
Jun. 30, 2020
Number of shares  
Beginning balance (in shares) 5,318,759
Options granted (in shares) 816,428
Less:  
Options exercised (in shares) 691,299
Options canceled or expired (in shares) 57,659
Ending balance (in shares) 5,386,229
Exercisable at March 31, 2020 (in shares) 3,101,808
Weighted Average Exercise Price  
Weighted average exercise price, beginning balance (in dollars per share) $ 9.97
Weighted average exercise price, granted (in dollars per share) 28.09
Less:  
Weighted average exercise price, exercised (in dollars per share) 7.42
Weighted average exercise price, canceled or expired (in dollars per share) 14.72
Weighted average exercise price, ending balance (in dollars per share) 13.01
Weighted average exercise price, exercisable, ending balance (in dollars per share) $ 8.66