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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2013
Earnings Per Share |
Reconciliation of number of shares used in calculation of basic and diluted earning per share |
|  | Three Months Ended |
|  | March 31, |
|  | 2013 |  | 2012 |
Weighted average number of common shares outstanding |  | 90,421 |  | 90,306 |
Effect of non-participatory equity compensation |  | 36 |  | 32 |
Weighted average number of common shares outstanding, including effect of dilutive securities |  | 90,457 |  | 90,338 |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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