Annual report pursuant to Section 13 and 15(d)

Stock-based Compensation - Narrative (Details)

v3.22.0.1
Stock-based Compensation - Narrative (Details)
$ in Thousands
1 Months Ended 12 Months Ended
Sep. 20, 2021
USD ($)
Sep. 30, 2021
USD ($)
shares
Dec. 31, 2021
USD ($)
tranche
shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
shares
Dec. 31, 2018
shares
Dec. 31, 2016
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Stock-based compensation expense | $     $ 10,666 $ 6,184 $ 3,492    
Options granted (in shares)     2,443,785        
RSUs granted (in shares)     1,716,193        
2021 Equity Incentive Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Additional shares available for authorization (in shares)   14,913,309          
Annual increase (in shares)   8,085,000          
Percentage of outstanding common stock   5.00%          
2021 Equity Incentive Plan | Common Class A              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares available for issuance (in shares)   7,276,000          
Stock appreciation rights              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares issued (in shares)     0        
Restricted stock units              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares issued (in shares)           111,111 240,000
Stock-based compensation expense | $ $ 900 $ 900          
Weighted-average grant-date fair value of RSUs granted | $     $ 47,200        
RSUs granted (in shares)       0 0    
Unrecognized compensation expense | $     $ 45,400        
Unrecognized compensation expense, period for recognition     3 years 10 months 24 days        
Restricted stock units | Minimum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period     1 year        
Restricted stock units | Maximum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Vesting period     4 years        
Stock options              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Unrecognized compensation expense | $     $ 24,400        
Unrecognized compensation expense, period for recognition     3 years        
Employee Stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Options granted (in shares)     0        
Employee Stock | 2021 Employee Stock Purchase Plan              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares available for issuance (in shares)   1,617,000          
Annual increase (in shares)   1,617,000          
Percentage of outstanding common stock   1.00%          
Offering period     12 months        
Number of purchase periods | tranche     2        
Purchase period     6 months        
Purchase price of common stock, percentage of fair market value     85.00%