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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2015
Earnings Per Share [Abstract] |
Reconciliation Of Net Income Attributable To Ensco Shares | The following table is a reconciliation of income from continuing operations attributable to Ensco shares used in our basic and diluted EPS computations for the three-month and nine-month periods ended September 30, 2015 and 2014 (in millions):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2015 |  | 2014 |  | 2015 |  | 2014
Income from continuing operations attributable to Ensco | $ | 315.4 |  |  | $ | 420.3 |  |  | $ | 910.7 |  |  | $ | 360.7 |
Income from continuing operations allocated to non-vested share awards | (4.8 | ) |  | (4.8 | ) |  | (12.2 | ) |  | (5.9 | )
Income from continuing operations attributable to Ensco shares | $ | 310.6 |  |  | $ | 415.5 |  |  | $ | 898.5 |  |  | $ | 354.8 |
Reconciliation Of Weighted-Average Shares Used In Earnings Per Share Computations | The following table is a reconciliation of the weighted-average shares used in our basic and diluted EPS computations for the three-month and nine-month periods ended September 30, 2015 and 2014 (in millions):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2015 |  | 2014 |  | 2015 |  | 2014
Weighted-average shares - basic | 232.4 |  |  | 231.8 |  |  | 232.2 |  |  | 231.5 |
Potentially dilutive shares | .1 |  |  | .2 |  |  | — |  |  | .2 |
Weighted-average shares - diluted | 232.5 |  |  | 232.0 |  |  | 232.2 |  |  | 231.7 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + 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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- 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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