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Earnings Per Share | 12 Months Ended
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Dec. 31, 2013
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:
|  | 2013 |  | 2012 |  | 2011
Basic weighted average common shares outstanding |  | 132,894,179 |  |  | 131,447,895 |  |  | 130,481,436 |
Effect of dilutive securities - stock awards |  | 2,436,014 |  |  | 1,869,155 |  |  | 2,895,673 |
Diluted weighted average common shares outstanding |  | 135,330,193 |  |  | 133,317,050 |  |  | 133,377,109 |
For the years ended December 31, 2013, 2012, and 2011, 2.3 million, 3.4 million, and 2.8 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.

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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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