Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation - Weighted Average Assumptions (Details)

v3.21.2
Share-Based Compensation - Weighted Average Assumptions (Details) - USD ($)
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Share-based Payment Arrangement [Abstract]    
Annualized volatility 66.00% 43.00%
Risk-free interest rate 0.38% 0.70%
Expected life of options in years 4 years 3 years
Estimated forfeiture rate 8.90% 12.00%
Dividend rate $ 0.000 $ 0.000
Fair value per common share option (in usd per share) $ 6.64 $ 5.05