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Per Common Share Information
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6 Months Ended |
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Jun. 30, 2012
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| Per Common Share Information | Per Common Share Information Diluted earnings per common share is calculated using net income divided by diluted weighted-average shares. Diluted weighted-average shares include weighted-average shares outstanding plus the dilutive effect of share-based compensation, calculated using the treasury stock method, of 10.1 million shares and 12.1 million shares for the quarters ended June 30, 2012 and 2011, respectively, and 11.1 million shares and 12.4 million shares for the six months ended June 30, 2012 and 2011, respectively. Stock options that would have been antidilutive and therefore were not included in the calculation of diluted weighted-average shares totaled 4.7 million shares for the quarter and six months ended June 30, 2012 and none for the quarter and six months ended June 30, 2011. |