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Per Share Data (Tables) | 9 Months Ended
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Sep. 30, 2019
Earnings Per Share [Abstract] |
Schedule of earnings per share, basic and diluted | The following is a reconciliation of the basic and diluted loss per share computation:
| Three months ended September 30, |  | Nine months ended September 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Net (loss)/income for basic earnings per share | $ | (1,205,827 | ) |  | $ | 388,050,413 |  |  | $ | (2,738,542 | ) |  | $ | 369,416,894 |
Less: Change in fair value of warrants | 981,923 |  |  | (2,328,674 | ) |  | 4,774,711 |  |  | (5,271,503 | )
Net (loss)/income, adjusted for change in fair value of warrants for diluted earnings per share | $ | (2,187,750 | ) |  | $ | 390,379,087 |  |  | $ | (7,513,253 | ) |  | $ | 374,688,397 |
Weighted-average shares | 81,064,927 |  |  | 80,023,044 |  |  | 80,988,813 |  |  | 79,650,373 |
Effect of potential common shares | 1,116,931 |  |  | 2,906,432 |  |  | 1,159,520 |  |  | 3,093,854 |
Weighted-average shares: diluted | 82,181,858 |  |  | 82,929,476 |  |  | 82,148,333 |  |  | 82,744,227 |
(Loss)/income per share: basic | $ | (0.01 | ) |  | $ | 4.85 |  |  | $ | (0.03 | ) |  | $ | 4.64 |
(Loss)/income per share: diluted | $ | (0.03 | ) |  | $ | 4.71 |  |  | $ | (0.09 | ) |  | $ | 4.53 |
Schedule of antidilutive securities excluded from computation of earnings per share | The weighted average number of equity instruments excluded consisted of:
| Three months ended September 30, |  | Nine months ended September 30,
| 2019 |  | 2019
Stock Options | 332,861 |  |  | 353,801 |
Stock-Settled Stock Appreciation Rights | — |  |  | 2,227 |
Restricted Stock Units | 598,793 |  |  | 545,422 |

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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://fasb.org/us-gaap/role/ref/legacyRef -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 an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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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