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Earnings Per Share | 6 Months Ended
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Jun. 30, 2018
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings per Share Basic earnings per share is based upon the weighted average common shares outstanding during each year. Diluted earnings per share is based on the basic weighted earnings per share with additional weighted common shares for common stock equivalents. During the three and six months ended June 30, 2018 and June 30, 2017, we had outstanding restricted shares of common stock to certain of our employees under the Company's 2011 Restricted Stock Award Plan (the "Plan"). A reconciliation of the numerator (net income) and denominator (weighted average number of shares outstanding of the basic and diluted earnings per share ("EPS")) for the three and six months ended June 30, 2018 and June 30, 2017 is as follows (in thousands, except per share data):
| Three months ended June 30, 2018
| Net Income (numerator) |  | Shares (denominator) |  | Per Share Amount
Basic EPS | $ | 17,803 |  |  | 82,330 |  |  | $ | 0.22 |
Effect of restricted stock | — |  |  | 38 |  |  |
Diluted EPS | $ | 17,803 |  |  | 82,368 |  |  | $ | 0.22 |
| Three months ended June 30, 2017
| Net Income (numerator) |  | Shares (denominator) |  | Per Share Amount
Basic EPS | $ | 14,616 |  |  | 83,294 |  |  | $ | 0.18 |
Effect of restricted stock | — |  |  | 44 |  |  |
Diluted EPS | $ | 14,616 |  |  | 83,338 |  |  | $ | 0.18 |
| Six months ended June 30, 2018
| Net Income (numerator) |  | Shares (denominator) |  | Per Share Amount
Basic EPS | $ | 31,182 |  |  | 82,817 |  |  | $ | 0.38 |
Effect of restricted stock | — |  |  | 38 |  |  |
Diluted EPS | $ | 31,182 |  |  | 82,855 |  |  | $ | 0.38 |
| Six months ended June 30, 2017
| Net Income (numerator) |  | Shares (denominator) |  | Per Share Amount
Basic EPS | $ | 28,653 |  |  | 83,293 |  |  | $ | 0.34 |
Effect of restricted stock | — |  |  | 44 |  |  |
Diluted EPS | $ | 28,653 |  |  | 83,337 |  |  | $ | 0.34 |

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