Share-Based Compensation (Summary Of Performance Share Units Grant-Date Fair Values And Their Related Assumptions) (Details) |
6 Months Ended |
---|---|
Jun. 30, 2022
$ / shares
| |
Performance Share Units [Member] | |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | |
Grant-date fair value | $ 44.05 |
Risk-free interest rate | 1.81% |
Volatility factor | 70.10% |
Contractual term (years) | 2 years 10 months 20 days |
Including Performance Factor Shares Granted [Member] | |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | |
Grant-date fair value | $ 68.68 |