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Earnings (Loss) Per Share (Tables) | 9 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Basic and diluted earnings (loss) per share and securities excluded from the calculation of diluted EPS | The following table shows the basic and diluted earnings (loss) per share:
| For the three months ended September 30,
| 2021 |  | 2020
| Net Income (Loss) |  | Shares (in millions) |  | Per Share |  | Net Income (Loss) |  | Shares (in millions) |  | Per Share
Net income (loss) | $ | (52.4) |  |  |  |  |  |  | $ | (58.2) |  |  |  |  |
Amount allocated to common stockholders | 100.0 | % |  |  |  |  |  | 100.0 | % |  |  |  |
Basic and diluted EPS(1) | $ | (52.4) |  |  | 90.1 |  |  | $ | (0.58) |  |  | $ | (58.2) |  |  | 89.5 |  |  | $ | (0.65) |
| For the nine months ended September 30,
| 2021 |  | 2020
| Net Income (Loss) |  | Shares (in millions) |  | Per Share |  | Net Income (Loss) |  | Shares (in millions) |  | Per Share
Net income (loss) | $ | (227.5) |  |  |  |  |  |  | $ | (87.8) |  |  |  |  |
Amount allocated to common stockholders | 100.0 | % |  |  |  |  |  | 100.0 | % |  |  |  |
Basic and diluted EPS(1) | $ | (227.5) |  |  | 90.1 |  |  | $ | (2.52) |  |  | $ | (87.8) |  |  | 89.4 |  |  | $ | (0.98) |
| Three months ended September 30, |  | Nine months ended September 30, |  |
Securities excluded from the calculation of diluted EPS (in millions)(1): | 2021 |  | 2020 |  | 2021 |  | 2020 |  |  |  |
Share-based compensation | 2.5 |  |  | 1.7 |  |  | 2.5 |  |  | 1.2 |  |  |  |  |
Convertible preferred shares | 6.3 |  |  | 6.6 |  |  | 6.3 |  |  | 6.6 |  |  |  |  |
Convertible senior notes | 4.8 |  |  | — |  |  | 4.8 |  |  | — |  |  |  |  |
(1) In periods when we report a net loss, all share-based compensation awards, convertible preferred shares and convertible senior notes are excluded from the calculation of diluted weighted average shares outstanding because of their anti-dilutive effect on earnings (loss) per share.

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