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Share-based Compensation Plans (Tables)
3 Months Ended
Mar. 31, 2020
Share-based Payment Arrangement [Abstract]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award The weighted average assumptions used in the Monte Carlo simulation models are summarized in the following table:
March 31, 2020December 31, 2019
Closing share price$6.03$15.04
Expected dividend rate14.6 %5.9 %
Expected stock price volatility47.7 %22.6 %
Risk-free interest rate0.2 %1.6 %
Expected life (years)1.752.00
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award The fair value of each grant for the reported periods is estimated on the date of grant using the Monte Carlo simulation model using the weighted average assumptions noted in the following table:
 Three Months Ended March 31,
20202019
Closing share price$13.09$12.05
Expected dividend rate6.7 %7.3 %
Expected stock price volatility23.3 %22.9 %
Risk-free interest rate0.9 %2.5 %
Expected life (years)2.852.85