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Investments, Carried at Cost (Tables) | 6 Months Ended
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Jun. 30, 2019
Investment [Line Items] |
Investments, Carried at Cost | The following table sets forth the Company’s investments, carried at cost:
|  | June 30, 2019 |  |  | December 31, 2018 |
AdvisorEngine – Preferred stock |  | $ | 25,000 |  |  | $ | 25,000 |
Thesys Group, Inc. (“Thesys”) |  |  | 3,080 |  |  |  | 3,080 |
Total |  | $ | 28,080 |  |  | $ | 28,080 |
Advisor Engine [Member] |
Investment [Line Items] |
Summary of Ranges and Weighted Averages of Significant Unobservable Inputs Used to Determine Enterprise Value |
|  | Range (Weighted Average) |
Market Approach |  |  |  |
Revenue multiple |  |  | 4.7x - 5.4x | (5.0x)
Income Approach |  |  |  |
Weighted average cost of capital (“WACC”) |  |  | 26.0 | %
Thesys Group, Inc [Member] |
Investment [Line Items] |
Summary of Ranges and Weighted Averages of Significant Unobservable Inputs Used to Determine Enterprise Value | The table below presents the ranges and weighted averages of significant unobservable inputs used in this assessment:
|  | Range (Weighted Average) |
Income Approach (1) |  |  |
Weighted average cost of capital (“WACC”) |  |  | 3.8% - 15.5% (14.1% | )
(1) | The inputs selected varied, based upon the Thesys business line being valued. An increase in the WACC would result in a lower enterprise value.

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