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Earnings per Share (Tables) | 3 Months Ended
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Mar. 31, 2012
Earnings Per Share [Abstract] |
Reconciliation of information used in computing basic and diluted earnings per share | The following table sets forth a reconciliation of the information used in computing basic and diluted earnings per share:
|  | Three Months Ended March 31, |
|  | 2012 |  |  | 2011 |
Earnings from continuing operations |  | $ | 196,827 |  |  | $ | 174,791 |
Earnings (loss) from discontinued operations, net |  |  | (764 | ) |  |  | 20,114 |
Net earnings |  | $ | 196,063 |  |  | $ | 194,905 |
Basic earnings (loss) per common share: |  |  |  |  |  |  |  |
Earnings from continuing operations |  | $ | 1.07 |  |  | $ | 0.94 |
Earnings (loss) from discontinued operations, net |  | $ | - |  |  | $ | 0.11 |
Net earnings |  | $ | 1.07 |  |  | $ | 1.04 |
Weighted average shares outstanding |  |  | 183,737 |  |  |  | 186,659 |
Diluted earnings (loss) per common share: |  |  |  |  |  |  |  |
Earnings from continuing operations |  | $ | 1.05 |  |  | $ | 0.92 |
Earnings (loss) from discontinued operations, net |  | $ | - |  |  | $ | 0.11 |
Net earnings |  | $ | 1.05 |  |  | $ | 1.03 |
Weighted average shares outstanding |  |  | 186,706 |  |  |  | 190,090 |
Reconciliation of share amounts used in computing earnings per share | The following table is a reconciliation of the share amounts used in computing earnings per share:
| Three Months Ended March 31, |
| 2012 |  | 2011 |
Weighted average shares outstanding - Basic | 183,737 |  | 186,659 |
Dilutive effect of assumed exercise of employee stock options, SARs and performance shares | 2,969 |  | 3,431 |
Weighted average shares outstanding - Diluted | 186,706 |  | 190,090 |

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- Definition Tabular disclosure of the reconciliation of basic net earnings per share (or unit) to diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 260 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 260 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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