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Income Taxes (Details)
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3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
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Sep. 30, 2014
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Sep. 30, 2013
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Sep. 30, 2014
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Sep. 30, 2013
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| Income Tax Disclosure [Abstract] | ||||
| Effective income tax rate | 26.00% | 25.20% | 26.80% | 26.40% |