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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2016
Earnings Per Share [Abstract] |
Computation Of Diluted Average Common Shares | The computation of diluted average common shares is as follows:
| Three Months Ended |  | Nine Months Ended
| September 30, |  | September 30,
(in thousands) | 2016 |  | 2015 |  | 2016 |  | 2015
Denominator |  |  |  |  |  |  |
Basic average common shares outstanding | 322,318 |  |  | 318,090 |  |  | 321,445 |  |  | 317,390 |
Dilutive potential common shares: |  |  |  |  |  |  |
Shares contingently issuable under employee stock plans | 228 |  |  | — |  |  | 146 |  |  | — |
Shares restricted under employee stock plans | 1,372 |  |  | 3,375 |  |  | 1,606 |  |  | 3,328 |
Diluted Average Common Shares | 323,918 |  |  | 321,465 |  |  | 323,197 |  |  | 320,718 |

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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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