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Investments, Carried at Cost (Tables) | 9 Months Ended
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Sep. 30, 2017
Investments Schedule [Abstract] |
Investments at Carried Cost | The following table sets forth the Company’s investments, carried at cost:
|  | September 30, 2017 |  |  | December 31, 2016 |
AdvisorEngine Inc. |  | $ | 25,000 |  |  | $ | 20,000 |
Tradeworx, Inc. |  |  | 6,909 |  |  |  | — |
Total |  | $ | 31,909 |  |  | $ | 20,000 |

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- Definition A tabular disclosure of (a) the aggregate carrying amount of all cost-method investments; (b) the aggregate carrying amount of cost-method investments that the investor did not evaluate for impairment for cost-method investments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=75025870&loc=d3e40691-111596 + Details
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