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Earnings Per Share | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Earnings Per Share | 17. Earnings Per Share Basic earnings per share (“EPS”) has been computed by dividing net (loss) income available to SunCoke Energy, Inc. by the weighted average number of shares outstanding during the period. Except where the result would be anti-dilutive, diluted earnings per share has been computed to give effect to share-based compensation awards using the treasury stock method. The following table sets forth the reconciliation of the weighted-average number of common shares used to compute basic earnings per share to those used to compute diluted EPS:
| Years Ended December 31,
| 2020 |  | 2019 |  | 2018
| (Shares in millions)
Weighted-average number of common shares outstanding-basic | 83.0 |  |  | 76.8 |  |  | 64.7 |
Add: effect of dilutive share-based compensation awards | 0.2 |  |  | — |  |  | 0.8 |
Weighted-average number of shares-diluted | 83.2 |  |  | 76.8 |  |  | 65.5 |
The following table shows stock options, restricted stock units, and performance stock units that are excluded from the computation of diluted earnings per share as the shares would have been anti-dilutive:
| Years Ended December 31,
| 2020 |  | 2019 |  | 2018
| (Shares in millions)
Stock options | 3.2 |  |  | 3.0 |  |  | 2.7 |
Restricted stock units | 0.2 |  |  | 0.1 |  |  | — |
Performance stock units | 0.3 |  |  | 0.4 |  |  | 0.1 |
Total | 3.7 |  |  | 3.5 |  |  | 2.8 |

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