Distributions - Declared on GAAP Basis (Detail) - USD ($)	11 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2019
Distribution Made to Limited Liability Company (LLC) Member [Line Items]
Amount	$ 3,518,302	$ 5,845,584
% of Cash Distributions Declared	100.00%	100.00%
Investment Company, Expense Offset Arrangement	$ 389,774	$ 1,372,020
Net Investment Income
Distribution Made to Limited Liability Company (LLC) Member [Line Items]
Amount	$ 3,389,372	$ 4,981,264
% of Cash Distributions Declared	96.30%	85.20%
Investment Company, Expense Offset Arrangement	$ 389,774	$ 1,372,020
Distributions in excess of net investment income
Distribution Made to Limited Liability Company (LLC) Member [Line Items]
Amount	$ 128,930	$ 864,320
% of Cash Distributions Declared	3.70%	14.80%
Class FA
Distribution Made to Limited Liability Company (LLC) Member [Line Items]
Amount	$ 3,364,900	$ 4,268,395
Class A
Distribution Made to Limited Liability Company (LLC) Member [Line Items]
Amount	21,184	549,420
Class T
Distribution Made to Limited Liability Company (LLC) Member [Line Items]
Amount	9,032	76,739
Class D
Distribution Made to Limited Liability Company (LLC) Member [Line Items]
Amount	39,313	222,967
Class I
Distribution Made to Limited Liability Company (LLC) Member [Line Items]
Amount	$ 83,873	$ 728,063