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Net Income Per Share (Tables) | 9 Months Ended
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Sep. 30, 2015
Earnings Per Share [Abstract] |
Schedule of Weighted Average Shares Outstanding Basic and Diluted | The share effect is as follows:
| For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
| 2015 |  | 2014 |  | 2015 |  | 2014
Weighted average shares outstanding: |  |  |  |  |  |  |
Common shares | 20,414,667 |  |  | 21,402,969 |  |  | 20,413,238 |  |  | 21,978,263 |
Vested restricted stock units | 532,160 |  |  | 485,622 |  |  | 525,609 |  |  | 772,605 |
Basic number of weighted average shares outstanding | 20,946,827 |  |  | 21,888,591 |  |  | 20,938,847 |  |  | 22,750,868 |
Dilutive effect of stock options | — |  |  | — |  |  | — |  |  | 4,393 |
Dilutive effect of restricted stock and restricted stock units | 5,884 |  |  | 6,631 |  |  | 10,661 |  |  | 20,936 |
Dilutive number of weighted average shares outstanding | 20,952,711 |  |  | 21,895,222 |  |  | 20,949,508 |  |  | 22,776,197 |

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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://www.xbrl.org/2003/role/presentationRef -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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