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Earnings per Share (Tables) | 12 Months Ended
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Dec. 31, 2015
Earnings Per Share [Abstract] |
Summary of the Reconciliation of the Basic and Diluted Weighted Average Number of Shares Outstanding | The following table summarizes the reconciliation of the basic weighted average number of shares outstanding and the diluted weighted average number of shares outstanding.
| Years ended
| December 31, 2015 |  | December 31, 2014 |  | December 31, 2013
Basic and diluted weighted average number of shares outstanding | 61,716,065 |  |  | 38,940,252 |  |  | 37,248,710
The following items have been excluded from the diluted weighted average number of shares outstanding because they are anti-dilutive: |  |  |  |  |
Stock options | 11,204,026 |  |  | 15,031,388 |  |  | 12,737,893
Restricted share units | 428,566 |  |  | — |  |  | — |
Restricted shares | 48,238 |  |  | 148,314 |  |  | 589,990
Convertible preferred shares | — |  |  | 27,159,277 |  |  | 27,159,277 |
| 11,680,830 |  |  | 42,338,979 |  |  | 40,487,160
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share | The following table summarizes the reconciliation of the basic weighted average number of shares outstanding and the diluted weighted average number of shares outstanding.
| Years ended
| December 31, 2015 |  | December 31, 2014 |  | December 31, 2013
Basic and diluted weighted average number of shares outstanding | 61,716,065 |  |  | 38,940,252 |  |  | 37,248,710
The following items have been excluded from the diluted weighted average number of shares outstanding because they are anti-dilutive: |  |  |  |  |
Stock options | 11,204,026 |  |  | 15,031,388 |  |  | 12,737,893
Restricted share units | 428,566 |  |  | — |  |  | — |
Restricted shares | 48,238 |  |  | 148,314 |  |  | 589,990
Convertible preferred shares | — |  |  | 27,159,277 |  |  | 27,159,277 |
| 11,680,830 |  |  | 42,338,979 |  |  | 40,487,160

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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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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