Consolidated Statements of Assets and Liabilities (Parenthetical) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Investment cost	$ 1,669,779,921	$ 1,821,602,910
Net of deferred issuance costs	$ 5,056,427	$ 6,878,110
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	57,767,264	57,767,264
Common stock, shares outstanding	57,767,264	57,767,264
Non-Controlled, Non-Affiliated Investments
Investment cost	$ 1,474,146,428	$ 1,637,897,868
Non-Controlled, Affiliated Investments
Investment cost	37,132,993	37,457,524
Controlled Investments
Investment cost	$ 158,500,500	$ 146,247,518