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Earnings per Share (Tables) | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Basic and Diluted Net Income Per Share of Common Stock | The following table presents the calculation of basic and diluted net income per share of common stock for the years ended December 31, 2020, 2019 and 2018:
| Year Ended December 31,
(in thousands, except for share and per share amounts) | 2020 |  | 2019 |  | 2018
Numerator: |  |  |  |  |
Net income | $ | 23,337 |  |  | $ | 115,553 |  |  | $ | 25,208 |
Denominator: |  |  |  |  |
Weighted average shares outstanding, basic | 54,427,683 |  |  | 53,137,562 |  |  | 50,859,947 |
Effect of dilutive securities | 763,119 |  |  | 1,709,498 |  |  | 2,185,310 |
Weighted average shares outstanding, diluted | 55,190,802 |  |  | 54,847,060 |  |  | 53,045,257 |
Net income per share, basic and diluted: |  |  |  |  |
Basic | $ | 0.43 |  |  | $ | 2.17 |  |  | $ | 0.50 |
Diluted | $ | 0.42 |  |  | $ | 2.11 |  |  | $ | 0.48 |
Antidilutive securities excluded from calculations of diluted net income per share | 3,407,409 |  |  | 1,932,024 |  |  | 903,265 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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