Quarterly report pursuant to Section 13 or 15(d)

Stock Award Plans and Stock-Based Compensation - Additional Information (Details)

v3.21.2
Stock Award Plans and Stock-Based Compensation - Additional Information (Details)
6 Months Ended
Jun. 30, 2021
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price limit (percent) 100.00%
Exercise price limit for individuals owning over ten percent (percent) 110.00%
Aggregate number of shares available for future grant under stock option plan 11,027,062
2011 Plan  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number of shares authorized (in shares) 5,317,853
Stock option grants during period (in shares) 11,520,865
Non plan stock options granted (in shares) 1
2018 Plan  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
2018 Plan aggregate number of options authorized (in shares) 17,230,073
Options  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options granted under the option plans vest over periods 4 years
Option life under the plan 10 years