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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2020
Earnings Per Share [Abstract] |
Schedule of Basic and Diluted Net Income Per Share | Reconciliation of the shares used in the basic and diluted earnings per share computations for the three and nine months ended September 30, 2020 and 2019 are as follows (in thousands):
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2020 |  | 2019 |  | 2020 |  | 2019
Basic weighted average shares outstanding |  | 48,652 |  |  | 48,395 |  |  | 48,582 |  |  | 48,329 |
Add effects of share-based compensation instruments (1) |  | — |  |  | 425 |  |  | — |  |  | — |
Diluted weighted average shares outstanding |  | 48,652 |  |  | 48,820 |  |  | 48,582 |  |  | 48,329 |
(1)Excluded from the computation of diluted earnings per share were stock options, SARs and restricted share units totaling 4.1 million and 1.4 million for the three months ended September 30, 2020 and 2019, respectively, and 4.2 million and 3.2 million for the nine months ended September 30, 2020 and 2019, respectively, because to include them would have been anti-dilutive under the treasury stock method.

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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://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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