Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation - Weighted Average Assumptions (Details)

v3.21.1
Share-Based Compensation - Weighted Average Assumptions (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Share-based Payment Arrangement [Abstract]    
Annualized volatility 66.00% 43.00%
Risk-free interest rate 0.28% 1.20%
Expected life of options in years 4 years 3 years
Estimated forfeiture rate 8.90% 13.00%
Dividend rate $ 0.000 $ 0.000
Fair value per common share option (in usd per share) $ 6.72 $ 5.44