Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Stock Option Activity (Details)

v3.20.2
Stock-Based Compensation - Stock Option Activity (Details) - Options
$ / shares in Units, $ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2020
USD ($)
$ / shares
shares
Dec. 31, 2019
USD ($)
$ / shares
shares
Number of Shares    
Outstanding, beginning balance (in shares) | shares 3,058,349  
Options granted (in shares) | shares 958,100  
Options forfeited (in shares) | shares (4,866)  
Options exercised (in shares) | shares (280,440)  
Outstanding, ending balance (in shares) | shares 3,731,143 3,058,349
Options vested and exercisable (in shares) | shares 2,099,733  
Weighted Average Exercise Price per Share    
Outstanding, beginning balance (in dollars per shares) | $ / shares $ 3.26  
Options granted (in dollars per share) | $ / shares 44.76  
Options forfeited (in dollars per shares) | $ / shares 5.55  
Options exercised (in dollars per shares) | $ / shares 2.44  
Outstanding, end balance (in dollars per shares) | $ / shares 13.97 $ 3.26
Options vested and exercisable (in dollars per shares) | $ / shares $ 2.26  
Options    
Intrinsic value, Outstanding, beginning balance | $ $ 34,725  
Intrinsic value, granted | $ 8,144  
Intrinsic value, Outstanding, end balance | $ 145,895 $ 34,725
Intrinsic value, vested and exercisable | $ $ 106,553  
Weighted average remaining contractual life, Outstanding, Beginning 8 years 1 month 6 days 8 years
Weighted average remaining contractual life, granted 9 years 10 months 24 days  
Weighted average remaining contractual life, vested and exercisable 7 years 4 months 24 days