Consolidated Statements of Assets and Liabilities (Parenthetical) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Investments owned, amortized cost	$ 353,225,888	$ 352,351,819
Net assets, per unit	$ 7.769	$ 8.024
Net assets, units outstanding	46,464,609	46,143,564
Class A Units [Member]
Net assets, units outstanding	17,909,938	17,861,312
Class C Units [Member]
Net assets, units outstanding	7,982,935	8,067,787
Class W Units [Member]
Net assets, units outstanding	24,555	24,555
Class Y Units [Member]
Net assets, units outstanding	1,616,852	1,297,897
Class I Units [Member]
Net assets, units outstanding	10,506,478	10,468,162
Class Z Units [Member]
Net assets, units outstanding	8,423,851	8,423,851