Investments - Summary of Selected Financial Information for JCP Funds (Details) - JCP Funds [Member] - USD ($) $ in Thousands |
3 Months Ended | |||
|---|---|---|---|---|
Mar. 31, 2016 |
Dec. 31, 2015 |
Mar. 31, 2015 |
Dec. 31, 2014 |
|
| Schedule of Equity Method Investments [Line Items] | ||||
| Total assets | $ 64,725 | $ 76,555 | ||
| Total liabilities | 74 | 99 | ||
| Total partners' capital | 64,651 | 76,456 | ||
| Net increase (decrease) in net assets resulting from operations | $ (11,806) | $ (7,886) | $ 1,478 | $ (65,700) |