Annual report pursuant to Section 13 and 15(d)

Stock-based Compensation - Stock Options (Details)

v3.21.1
Stock-based Compensation - Stock Options (Details) - shares
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 21, 2020
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Exchange ratio     1.239434862  
Number of shares authorized 18,162,573 15,281,513 26,898,554 7,064,779
Vesting period 4 years      
Grants in period 209      
Options to purchase common shares        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Expiration period 10 years      
Vesting percentage 25.00%      
Vesting period 3 years      
Performance Based Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Grants in period 0 0