Investments - Summary of Selected Financial Information for JCP Fund V (Details) - JCP Fund V [Member] - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Sep. 30, 2016
Schedule of Equity Method Investments [Line Items]
Total assets	$ 80,403		$ 82,689
Total liabilities	81		73
Total partners’ capital	80,322		$ 82,616
Net increase (decrease) in net assets resulting from operations	$ (2,294)	$ (7,886)