Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Stock option activity (Details)

v3.21.1
Stock-Based Compensation - Stock option activity (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Number of Options    
Outstanding beginning balance 14,713  
Options granted 436  
Options exercised (180)  
Options forfeited (117)  
Outstanding Ending balance 14,852 14,713
Options expected to vest 4,945  
Options exercisable 5,952  
Weighted Average Exercise Price    
Outstanding beginning balance (in dollars per share) $ 4.47  
Options granted (in dollars per share) 20.10  
Options exercised (in dollars per share) 3.25  
Options forfeited (in dollars per share) 5.84  
Outstanding ending balance (in dollars per share) 4.94 $ 4.47
Options expected to vest (in dollars per share) 8.60  
Options exercisable (in dollars per share) $ 2.65  
Additional disclosures    
Weighted Average Remaining Contractual Life (Years) 7 years 7 months 9 days 7 years 9 months 14 days
Aggregate Intrinsic Value, outstanding (Beginning balance) $ 181,914  
Aggregate Intrinsic Value, outstanding (ending balance) 244,811 $ 181,914
Aggregate Intrinsic Value, expected to vest 63,365  
Aggregate Intrinsic Value, exercisable $ 111,718