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Earnings (Loss) Per Share | 6 Months Ended
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Jun. 30, 2017
Earnings Per Share [Abstract] |
Earnings (Loss) Per Share | Earnings (Loss) Per Share Basic earnings (loss) per share has been computed based upon the weighted average number of common shares outstanding. Diluted earnings (loss) per share has been computed based upon the weighted average number of common shares outstanding plus the effect of all potentially dilutive common stock equivalents, except when the effect would be anti-dilutive. The following table sets forth the computation of basic and diluted loss per share (in millions, except per share data).
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
Basic and diluted loss per share: |  |  |  |  |  |  |
Numerator: |  |  |  |  |  |  |
Net loss, basic and diluted | $ | (27.6 | ) |  | $ | (8.0 | ) |  | $ | (66.8 | ) |  | $ | (9.5 | )
Denominator: |  |  |  |  |  |  |
Basic weighted average common shares | 28.3 |  |  | 28.3 |  |  | 28.3 |  |  | 28.3 |
Stock options, RSUs and PSUs | — |  |  | — |  |  | — |  |  | — |
Weighted average shares used to calculate diluted loss per share | 28.3 |  |  | 28.3 |  |  | 28.3 |  |  | 28.3 |
Loss per share: |  |  |  |  |  |  |
Basic | $ | (0.98 | ) |  | $ | (0.28 | ) |  | $ | (2.36 | ) |  | $ | (0.34 | )
Diluted | $ | (0.98 | ) |  | $ | (0.28 | ) |  | $ | (2.36 | ) |  | $ | (0.34 | )
Antidilutive stock options, RSUs and PSUs | 0.9 |  |  | 0.2 |  |  | 0.8 |  |  | 0.2 |

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