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Earnings Per Share (Tables) | 6 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted |
|  | Three Months Ended |  | Six Months Ended
|  | June 30, |  | June 30,
|  | 2018 |  | 2017 |  | 2018 |  | 2017
Weighted average shares outstanding - basic |  | 82,067,872 |  |  | 82,318,623 |  |  | 82,160,159 |  |  | 82,333,739 |
Dilutive effect of share-based awards |  | 101,680 |  |  | 109,352 |  |  | 102,126 |  |  | 102,431 |
Weighted average shares outstanding - diluted |  | 82,169,552 |  |  | 82,427,975 |  |  | 82,262,285 |  |  | 82,436,170 |

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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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