Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation (Tables)

v3.20.2
Share-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2020
Share-based Payment Arrangement [Abstract]  
Schedule of Valuation Assumptions
The ranges for the assumptions used in the Monte Carlo model for the PRSUs granted during 2020, 2019 and 2017 are presented as follows:
2020 2019 2017
Expected volatility 101.32  % 49.9  % 59.63% to 62.18%
Dividend yield 0.0  % 0.0  % 0.0  %
Risk-free interest rate 0.51  % 1.66  % 1.44% to 1.51%