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Earnings Per Common Share and Share Awards Schedule of Weighted Average Grant Date Fair Value of Stock Awards Plans (Details) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
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Earnings Per Share [Abstract] |  |  |
Weighted-average market price | $ 71.59 | $ 50.50 | $ 41.50
Weighted-average grant-date fair value | $ 27.55 | $ 18.84 | $ 15.55

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- Definition Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Weighted Average Grant Date Fair Value + References No definition available. + Details
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- Definition Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other Than Options, Weighted-Average Market Price + References No definition available. + Details
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- Details
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