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Earnings Per Share | 3 Months Ended
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Mar. 31, 2014
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share The following is a reconciliation of the average shares outstanding used to compute basic and diluted earnings per share.
| Three Months Ended March 31,
| 2014 |  | 2013
Basic weighted average common shares outstanding | 134,187,169 |  |  | 132,306,735 |
Effect of dilutive securities | 2,860,541 |  |  | 2,686,322 |
Diluted weighted average common shares outstanding | 137,047,710 |  |  | 134,993,057 |
For the three months ended March 31, 2014 and March 31, 2013, 1.2 million and 2.7 million, respectively, of common shares issuable upon the exercise of stock options were anti-dilutive and were excluded from the calculation of diluted earnings per share. No dividends were paid during each of the three months ended March 31, 2014 and March 31, 2013.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=32703322&loc=d3e4984-109258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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