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Earnings Per Share | 9 Months Ended
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Sep. 30, 2017
Earnings Per Share [Abstract] |
Earnings Per Share | Note 13. Earnings per Share Basic earnings per share is computed by dividing net income attributable to our stockholders by the weighted average number of shares of common stock and vested deferred stock units outstanding during the year. The computation of diluted earnings per share is similar to the computation of basic earnings per share, except that the denominator is increased for the assumed exercise of dilutive options and assumed issuance of unvested restricted stock units and unvested deferred stock units using the treasury stock method unless the effect is anti-dilutive. The treasury stock method assumes that proceeds, including cash received from the exercise of employee stock options, the total unrecognized compensation expense for unvested share-based compensation awards and, prior to the adoption of new accounting guidance related to share-based compensation on January 1, 2017, the tax benefits resulting from share-based compensation tax deductions in excess of the related expense recognized for financial reporting purposes, would be used to purchase our common stock at the average market price during the period. For further discussion regarding the impact of the new accounting guidance related to share-based compensation, see “Note 2. Accounting Policies.” Vested deferred stock units outstanding are included in shares outstanding for basic and diluted earnings per share because the associated shares of our common stock are issuable for no cash consideration, the number of shares of our common stock to be issued is fixed and issuance is not contingent. See Note 4 to the consolidated financial statements in our 2016 Annual Report for additional information regarding deferred stock units. ﻿ The following is a reconciliation of weighted average shares outstanding for basic and diluted earnin gs per share for the three and nine months ended September 30, 2017 and 2016 (in thousands):
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | For the Three Months Ended |  | For the Nine Months Ended |
﻿ |  | September 30, |  | September 30, |
﻿ |  | 2017 |  | 2016 |  | 2017 |  | 2016 |
﻿ |  |  |  |  |  |  |  |  |
﻿Shares outstanding for basic earnings per share |  | 87,537 |  | 89,894 |  | 87,884 |  | 89,881 |
﻿ |  |  |  |  |  |  |  |  |
﻿Shares outstanding for diluted earnings per share: |  |  |  |  |  |  |  |  |
﻿Shares outstanding for basic earnings per share |  | 87,537 |  | 89,894 |  | 87,884 |  | 89,881 |
﻿Dilutive effect of share-based payment awards |  | 1,719 |  | 1,244 |  | 1,851 |  | 1,079 |
﻿ |  | 89,256 |  | 91,138 |  | 89,735 |  | 90,960 |
﻿ ﻿ ﻿ Certain options to acquire shares and restricted stock units have been excluded from the calculation of shares outstanding for diluted earnings per share because they were anti-dilutive. The following table presents information concerning those anti-dilutive options and restricted stock units for the three and nine months ended September 30, 2017 and 2016 (in thousands):
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | For the Three Months Ended |  | For the Nine Months Ended |
﻿ |  | September 30, |  | September 30, |
﻿ |  | 2017 |  | 2016 |  | 2017 |  | 2016 |
﻿ |  |  |  |  |  |  |  |  |
﻿Weighted average number of shares underlying anti-dilutive options |  | 377 |  | - |  | 310 |  | 520 |
﻿ |  |  |  |  |  |  |  |  |
﻿Weighted average number of shares underlying anti-dilutive restricted stock units |  | - |  | - |  | - |  | - |
﻿

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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