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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2017
Earnings Per Share [Abstract] |
Reconciliation Of Net Income Attributable To Ensco Shares | The following table is a reconciliation of (loss) 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, 2017 and 2016 (in millions):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
(Loss) income from continuing operations attributable to Ensco | $ | (25.2 | ) |  | $ | 86.0 |  |  | $ | (96.2 | ) |  | $ | 853.0 |
Income from continuing operations allocated to non-vested share awards(1) | (.1 | ) |  | (1.8 | ) |  | (.3 | ) |  | (15.1 | )
(Loss) income from continuing operations attributable to Ensco shares | $ | (25.3 | ) |  | $ | 84.2 |  |  | $ | (96.5 | ) |  | $ | 837.9 |
(1) | Losses are not allocated to non-vested share awards. Therefore, only dividends attributable to our non-vested share awards are included in the three-month and nine-month periods ended September 30, 2017.

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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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