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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Schedule of Weighted Average Number of Shares Used To Compute Basic and Diluted EPS | The weighted average number of shares used to compute basic and diluted EPS were (in thousands):
|  | 2020 |  |  | 2019 |  |  | 2018 |
Basic weighted average number of shares outstanding |  |  | 100,848 |  |  |  | 92,419 |  |  |  | 80,014 |
Equity-based awards |  |  | 357 |  |  |  | 334 |  |  |  | - |
Convertible senior notes |  |  | - |  |  |  | - |  |  |  | - |
Diluted weighted average number of shares outstanding |  |  | 101,205 |  |  |  | 92,753 |  |  |  | 80,014 |
Net Income Available to Shareholders to Compute Basic and Diluted EPS | The net income available to shareholders to compute basic and diluted EPS were (in thousands):
|  | 2020 |  |  | 2019 |  |  | 2018 |
Net income attributable to Parsons Corporation |  |  | 98,541 |  |  |  | 120,534 |  |  |  | 222,337 |
Convertible senior notes if-converted method interest adjustment |  |  | - |  |  |  | - |  |  |  | - |
Diluted net income attributable to Parsons Corporation |  |  | 98,541 |  |  |  | 120,534 |  |  |  | 222,337 |

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