Annual report pursuant to Section 13 and 15(d)

Stock-Based Payments - Stock Options (Details)

v3.22.0.1
Stock-Based Payments - Stock Options (Details) - USD ($)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Unrecognized compensation costs $ 12,800,000    
Granted and outstanding (in shares) 2,417,600    
Period in which compensation costs will be recognized 2 years 11 months 19 days    
Intrinsic value of options exercised $ 100,000 $ 800,000 $ 200,000
Cash received from option exercises $ 200,000 1,100,000 200,000
Performance-based stock options      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Additional stock-based compensation expense recorded related to achievement of certain performance-based milestones   400,000 $ 400,000
Unrecognized compensation costs   $ 0  
Granted and outstanding (in shares) 0    
Performance-based stock options | Advisor      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Unrecognized compensation costs $ 300,000    
Granted and outstanding (in shares) 75,000    
Period in which compensation costs will be recognized 4 years 8 months 12 days