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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2018
Earnings Per Share [Abstract] |
Schedule of Reconciliation of Shares Outstanding for Basic and Diluted Earnings Per Share | The following is a reconciliation of shares outstanding for basic and diluted earnings per share for the years ended December 31, 2018, 2017 and 2016 (in thousands):
﻿ |  | For the Years Ended December 31,
﻿ |  | 2018 |  | 2017 |  | 2016
﻿ |  |  |  |  |  |  |  |  |
Shares outstanding for basic earnings per share: |  | 86,864 |  |  | 87,769 |  |  | 89,732 |
﻿ |  |  |  |  |  |
Shares outstanding for diluted earnings per share: |  |  |  |  |  |
Shares outstanding for basic earnings per share |  | 86,864 |  |  | 87,769 |  |  | 89,732 |
Dilutive effect of share-based payment awards |  | 1,606 |  |  | 1,798 |  |  | 1,152 |
﻿ |  | 88,470 |  |  | 89,567 |  |  | 90,884 |
Schedule of Number of Anti-Dilutive Stock Options | The following table presents information concerning those anti-dilutive options for the years ended December 31, 2018, 2017 and 2016 (in thousands):
﻿ |  | For the Years Ended December 31,
﻿ |  | 2018 |  | 2017 |  | 2016
﻿ |  |  |  |  |  |  |
Weighted average number of shares underlying anti-dilutive options |  | 287 |  |  | 327 |  |  | 88 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + 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 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + 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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