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Earnings Per Share | 9 Months Ended
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Sep. 30, 2018
Earnings Per Share [Abstract] |
Earnings per Share | Earnings per Share The following table shows the information used in the calculation of our basic and diluted earnings per share calculation as of September 30, 2018 and December 31, 2017. See Note 12 "Stockholders' Equity" for details on our April 12, 2018 stock split and our common stock repurchase on August 13, 2018.
| For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
Weighted average common shares outstanding for basic calculation | 296,136,564 |  |  | 302,225,923 |  |  | 300,173,831 |  |  | 302,225,923 |
Add: Effect of stock options and restricted stock | 8,889 |  |  | — |  |  | 4,873 |  |  | — |
Weighted average common shares outstanding for diluted calculation | 296,145,453 |  |  | 302,225,923 |  |  | 300,178,704 |  |  | 302,225,923 |
Basic earnings per common share are calculated by dividing net income (loss) by the weighted average number of common shares outstanding. Diluted earnings per share are calculated by dividing net income (loss) by the sum of the weighted average number of common shares outstanding plus the additional common shares that would have been outstanding if potentially dilutive securities had been issued. The weighted average common shares outstanding for the diluted earnings per share calculation excludes consideration of stock options covering 946,610 and 544,292 shares in the three and nine months ended September 30, 2018, respectively, as these shares are anti-dilutive.

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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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