| **Benefit Plans (Significant Assumptions Used to Estimate Fair Value of Stock Options and SARS) (Details)**              | 12 Months Ended         |
|--------------------------------------------------------------------------------------------------------------------------|-------------------------|
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| **Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]** |                    |   |
| Weighted average expected life of the securities granted (in years)                                                      | 5 years 8 months 4 days | 5 years 7 months 11 days |
| Estimate of the underlying common stock's volatility                                                                     | 40.39%                  | 39.88% |
| Expected dividend yield                                                                                                  | 2.10%                   | 1.50% |
| Risk free interest rate                                                                                                  | 1.00%                   | 2.20% |

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| - Definition
The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.
+ References
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| - Definition
Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.D.2) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section D -Subsection 2
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| - Definition
The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.
+ References
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| - Definition
The risk-free interest rate assumption that is used in valuing an option on its own shares.
+ References
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