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Benefit Plans (Plan Asset Allocations) (Details)
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Dec. 31, 2013
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Dec. 31, 2012
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|---|---|---|
| Defined Benefit Plan Disclosure [Line Items] | ||
| Defined Benefit Plan, Actual Plan Asset Allocations | 100.00% | 100.00% |
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Cash and cash equivalents [Member]
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| Defined Benefit Plan Disclosure [Line Items] | ||
| Defined Benefit Plan, Actual Plan Asset Allocations | 14.40% | 15.20% |
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Equity Securities [Member]
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| Defined Benefit Plan Disclosure [Line Items] | ||
| Defined Benefit Plan, Actual Plan Asset Allocations | 34.20% | 22.00% |
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Fixed income securities [Member]
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| Defined Benefit Plan Disclosure [Line Items] | ||
| Defined Benefit Plan, Actual Plan Asset Allocations | 51.40% | 62.80% |