| **Earnings per Common Share - Table 1 (Details) (USD $)** | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended |
|-----------------------------------------------------------|----------------|----------------|----------------|-----------------|
||
| Continuing operations                                     | $ 0.61         | $ 1.82         | $ 0.48         | $ 0.41          | $ 0.44 | $ 0.38 | $ 0.39 | $ 0.50 | $ 0.17 | $ 0.14 | $ 0.58 | $ 2.24 | $ 2.87 | $ 1.21 | $ 1.62 | $ 1.39 | $ 9.20 | $ 0.57 | $ 2.31 |
| Discontinued operations                                   | $ (0.01)       | $ 0.00         | $ 0.00         | $ 0.02          | $ (0.01) | $ 0.04 | $ 0.00 | $ (0.05) | $ 0.36 | $ 0.02 | $ 0.19 | $ 0.00 | $ (0.01) | $ 0.03 | $ 0.05 | $ 0.52 | $ 0.10 | $ 0.20 | $ 0.39 |
| Net Income                                                | $ 0.60         | $ 1.82         | $ 0.48         | $ 0.43          | $ 0.43 | $ 0.42 | $ 0.39 | $ 0.45 | $ 0.53 | $ 0.16 | $ 0.77 | $ 2.24 | $ 2.86 | $ 1.24 | $ 1.67 | $ 1.91 | $ 9.30 | $ 0.77 | $ 2.70 |
| Scenario, Previously Reported [Member]                    |           |           |           |            |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Continuing operations                                     |           | $ 1.85         | $ 0.49         | $ 0.42          | $ 0.44 | $ 0.39 | $ 0.40 | $ 0.52 | $ 0.17 | $ 0.14 | $ 0.60 | $ 2.28 |   |   | $ 1.65 | $ 1.42 | $ 9.31 | $ 0.58 | $ 2.34 |
| Discontinued operations                                   |           | $ 0.00         | $ 0.00         | $ 0.02          | $ 0.00 | $ 0.04 | $ (0.01) | $ (0.05) | $ 0.37 | $ 0.03 | $ 0.19 | $ 0.00 |   |   | $ 0.04 | $ 0.54 | $ 0.10 | $ 0.19 | $ 0.39 |
| Net Income                                                |           | $ 1.85         | $ 0.49         | $ 0.44          | $ 0.44 | $ 0.43 | $ 0.39 | $ 0.47 | $ 0.54 | $ 0.17 | $ 0.79 | $ 2.28 |   |   | $ 1.69 | $ 1.96 | $ 9.41 | $ 0.77 | $ 2.73 |

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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation.
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