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Net Income Per Share | 9 Months Ended
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Sep. 30, 2017
Earnings Per Share [Abstract] |
Net Income Per Share | Net Income per Share The following is a reconciliation between basic and diluted weighted average shares outstanding:
(In thousands) | Three Months Ended September 30, |  | Nine Months Ended September 30,
2017 |  | 2016 |  | 2017 |  | 2016
Basic weighted average common shares outstanding | 63,683 |  |  | 71,507 |  |  | 65,960 |  |  | 72,269 |
Effect of dilution: |  |  |  |  |  |  |
Stock options | 4 |  |  | 1 |  |  | 1 |  |  | 17 |
Restricted stock units | 760 |  |  | 632 |  |  | 690 |  |  | 616 |
Diluted weighted average common shares outstanding | 64,447 |  |  | 72,140 |  |  | 66,651 |  |  | 72,902 |
For the three and nine months ended September 30, 2017, there were approximately 170,000 restricted stock units that would have been anti-dilutive to the diluted weighted average common shares outstanding. For the three and nine months ended September 30, 2016, there were no stock options or restricted stock units that would have been anti-dilutive to the diluted weighted average common shares outstanding. Approximately 960,000 and 137,000 restricted stock units with performance conditions have been excluded from diluted weighted average common shares outstanding for the three and nine months ended September 30, 2017 and September 30, 2016, respectively, since performance conditions on these awards were not met in each of the respective periods. Stock Repurchase Program On March 4, 2016, the Company’s Board of Directors authorized a program to repurchase up to $500 million of its outstanding shares of Class A common stock (the “Stock Repurchase Program”). On June 6, 2017, the Board of Directors approved an increase of $500 million in the amount authorized for a total of $1.0 billion authorized under the Stock Repurchase Program. The Stock Repurchase Program has no pre-established closing date and may be suspended or discontinued at any time. For the nine months ended September 30, 2017, the Company repurchased 6.1 million shares of its Class A common stock at an average purchase price of approximately $56.37 per share. As of September 30, 2017, the Company had $430.4 million available for repurchase under the Stock Repurchase Program.

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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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