XML 55 R42.htm IDEA: XBRL DOCUMENT v3.21.1
Share-Based Compensation (Tables)
3 Months Ended
Mar. 31, 2021
Share-based Payment Arrangement [Abstract]  
Weighted-Average Assumptions Utilized to Value Performance-Based Awards Based on Total Shareholder Return The following weighted average assumptions were utilized to value the TSR grants:
2021
Dividend yield1.56 %
Expected historical volatility71.1 %
Risk free interest rate0.17 %
Expected life (in years)3