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Earnings Per Common Share | 9 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Earnings Per Common Share | Earnings Per Common ShareBasic earnings per common share (“EPS”) and diluted EPS are calculated by dividing net income attributable to Tutor Perini Corporation by the following: for basic EPS, the weighted-average number of common shares outstanding during the period; and for diluted EPS, the sum of the weighted-average number of both outstanding common shares and potentially dilutive securities, which for the Company can include restricted stock units and unexercised stock options. Potentially dilutive securities also included the Convertible Notes (as defined in Note 9) prior to their repayment on June 15, 2021; however, the notes had no impact on diluted EPS. The Company calculates the effect of the potentially dilutive restricted stock units and stock options using the treasury stock method.
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(in thousands, except per common share data) | 2021 | 2020 |  | 2021 | 2020
Net income attributable to Tutor Perini Corporation | $ | 15,394 |  | $ | 36,819 |  |  | $ | 62,593 |  | $ | 72,899 |
Weighted-average common shares outstanding, basic | 51,072 |  | 50,787 |  |  | 50,995 |  | 50,598 |
Effect of dilutive restricted stock units and stock options | 294 |  | 454 |  |  | 369 |  | 406 |
Weighted-average common shares outstanding, diluted | 51,366 |  | 51,241 |  |  | 51,364 |  | 51,004 |
Net income attributable to Tutor Perini Corporation per common share: |  |  |  |  |
Basic | $ | 0.30 |  | $ | 0.72 |  |  | $ | 1.23 |  | $ | 1.44 |
Diluted | $ | 0.30 |  | $ | 0.72 |  |  | $ | 1.22 |  | $ | 1.43 |
Anti-dilutive securities not included above | 2,131 |  | 1,514 |  |  | 1,861 |  | 1,977 |

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