XML 55 R36.htm IDEA: XBRL DOCUMENT v3.21.1
Share-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2021
Share-based Payment Arrangement [Abstract]  
Fair Valuation Assumptions for Stock Options
The weighted average assumptions used to determine the fair value of stock options granted for the three months ended March 31, 2021, is as follows:

Risk-free interest rates0.8 %
Expected volatility44.2 %
Expected dividend yield5.1 %
Expected life (in years)6
Exercise price$23.79