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QUARTERLY FINANCIAL DATA (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract] |
Summarized (unaudited) quarterly financial information | The following summarized (unaudited) quarterly financial information presents the results of operations and other data for three-month periods ended March 31, June 30, September 30 and December 31, 2018 and 2017.
|  | First Quarter 2018 |  |  | Second Quarter 2018 |  |  | Third Quarter 2018 |  |  | Fourth Quarter 2018 |
Total Income (Loss) |  | $ | 174,518,482 |  |  | $ | 256,619,443 |  |  | $ | 51,601,604 |  |  | $ | (760,851,950 | )
Total Expenses |  |  | 3,620,608 |  |  |  | 3,391,637 |  |  |  | 3,117,304 |  |  |  | 3,032,675 |
Net Income (Loss) |  | $ | 170,897,874 |  |  | $ | 253,227,806 |  |  | $ | 48,484,300 |  |  | $ | (763,884,625 | )
Net Income (Loss) per Share |  | $ | 1.02 |  |  | $ | 1.92 |  |  | $ | 0.45 |  |  | $ | (5.88 | )
|  | First Quarter 2017 |  |  | Second Quarter 2017 |  |  | Third Quarter 2017 |  |  | Fourth Quarter 2017 |
Total Income (Loss) |  | $ | (247,892,752 | ) |  | $ | (253,296,939 | ) |  | $ | 270,615,213 |  |  | $ | 329,664,541 |
Total Expenses |  |  | 5,262,552 |  |  |  | 5,476,212 |  |  |  | 4,805,332 |  |  |  | 4,573,570 |
Net Income (Loss) |  | $ | (253,155,304 | ) |  | $ | (258,773,151 | ) |  | $ | 265,809,881 |  |  | $ | 325,090,971 |
Net Income (Loss) per Share |  | $ | (1.09 | ) |  | $ | (1.15 | ) |  | $ | 0.97 |  |  | $ | 1.64 |

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109225645&loc=d3e1280-108306 + Details
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