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Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2013
Earnings Per Share [Abstract] |
Schedule of Weighted-Average Number of Shares Outstanding | The following is a calculation of the basic and diluted weighted-average shares outstanding for the three months ended March 31, 2013 and 2012:
|  | Three Months Ended March 31, |
|  | 2013 |  |  | 2012 |
|  | (In thousands) |
Basic weighted average common shares outstanding |  |  | 92,375 |  |  |  | 92,130 |
Dilution effect of stock awards at end of period |  |  | 276 |  |  |  | 101 |
Diluted weighted average common shares outstanding |  |  | 92,651 |  |  |  | 92,231 |
Anti-dilutive stock-based compensation awards |  |  | 778 |  |  |  | 376 |

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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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