Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation - Payroll Reduction Program (Details)

v3.21.2
Stock-Based Compensation - Payroll Reduction Program (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares reserved for issuance 10,015,157     10,015,157    
Stock based compensation expense $ 5,884   $ 507 $ 29,361 $ 1,541  
Employee awards            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock based compensation expense $ 1,641   $ 507 6,636 $ 1,541  
Employee awards | Restricted stock units            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Reduced cash payroll costs           $ 4,000
Shares reserved for issuance   2,356,045       2,356,045
Shares issued           2,356,045
Stock based compensation expense   $ 6,500   $ 1,605