| Income Tax Expense/Benefit, Deferred | | -0.92 | -2.52 | 0.17 | 1.94 |
| Income Tax Expense/Benefit | | -0.71 | 0.62 | -2.35 | 2.03 |
| | 24.73 | 27.48 | 32.90 | 25.62 |
| Attributable To Parent | | 24.73 | 27.48 | 32.90 | 25.62 |
| Available To Common Stockholders, Basic | | 24.36 | 27.18 | 32.54 | 25.33 |
| Basic Average Shares | | 61.14 | - | 57.53 | 55.54 |
| Diluted Average Shares | | 70.51 | - | 66.84 | 64.83 |
| Basic Earnings Per Share | | 0.40 | - | 0.57 | 0.46 |
| Diluted Earnings Per Share | | 0.39 | - | 0.54 | 0.44 |
| Undistributed Earnings/Loss Allocated To Participating Securities, Basic | | -0.37 | -0.30 | -0.35 | -0.29 |