Selected Quarterly Data (Unaudited) (Details) - Schedule of selected quarterly data - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
		Feb. 28, 2023	Nov. 30, 2022	Aug. 31, 2022	May 31, 2022	Feb. 28, 2022	Nov. 30, 2021	Aug. 31, 2021	May 31, 2021	Feb. 28, 2021	Nov. 30, 2020	Aug. 31, 2020	May 31, 2020
Qtr 4 [Member]
Selected Quarterly Data (Unaudited) (Details) - Schedule of selected quarterly data [Line Items]
Total investment income		$ 32,315				$ 18,980				$ 16,214
Net investment income		9,650				5,796				4,289
Net realized and unrealized gain (loss)		9,934				2,725				5,096
Realized losses on extinguishment of debt*	[1]	(382)				(2,434)				(129)
Net increase in net assets resulting from operations		$ 19,202				$ 8,404				$ 9,257
Net investment income per common share (in Dollars per share)		$ 0.81				$ 0.48				$ 0.38
Net realized and unrealized gain (loss) per common share (in Dollars per share)		0.81				0.23				0.46
Dividends declared per common share (in Dollars per share)		0.68				0.53				0.42
Net asset value per common share (in Dollars per share)		$ 29.18				$ 29.33				$ 27.25
Qtr 3 [Member]
Selected Quarterly Data (Unaudited) (Details) - Schedule of selected quarterly data [Line Items]
Total investment income			$ 26,257				$ 16,502				$ 14,283
Net investment income			9,877				5,197				4,471
Net realized and unrealized gain (loss)			(3,863)				3,908				1,895
Realized losses on extinguishment of debt*	[1]						(118)
Net increase in net assets resulting from operations			$ 6,014				$ 8,340				$ 6,366
Net investment income per common share (in Dollars per share)			$ 0.83				$ 0.45				$ 0.4
Net realized and unrealized gain (loss) per common share (in Dollars per share)			(0.32)				0.34				0.17
Dividends declared per common share (in Dollars per share)			0.54				0.52				0.41
Net asset value per common share (in Dollars per share)			$ 28.25				$ 29.17				$ 26.84
Qtr 2 [Member]
Selected Quarterly Data (Unaudited) (Details) - Schedule of selected quarterly data [Line Items]
Total investment income				$ 21,853				$ 18,442				$ 13,856
Net investment income				7,698				6,393				5,335
Net realized and unrealized gain (loss)				(5,545)				3,101				16,476
Realized losses on extinguishment of debt*	[1]			(1,205)				(1,552)
Net increase in net assets resulting from operations				$ 948				$ 7,942				$ 21,811
Net investment income per common share (in Dollars per share)				$ 0.64				$ 0.57				$ 0.48
Net realized and unrealized gain (loss) per common share (in Dollars per share)				(0.46)				0.29				1.48
Dividends declared per common share (in Dollars per share)				0.53				0.44				0.4
Net asset value per common share (in Dollars per share)				$ 28.27				$ 28.97				$ 26.68
Qtr 1 [Member]
Selected Quarterly Data (Unaudited) (Details) - Schedule of selected quarterly data [Line Items]
Total investment income					$ 18,679				$ 16,816				$ 13,297
Net investment income					7,976				2,556				9,018
Net realized and unrealized gain (loss)					(9,464)				18,493				(31,674)
Realized losses on extinguishment of debt*	[1]
Net increase in net assets resulting from operations					$ (1,488)				$ 21,049				$ (22,656)
Net investment income per common share (in Dollars per share)					$ 0.66				$ 0.23				$ 0.8
Net realized and unrealized gain (loss) per common share (in Dollars per share)					(0.78)				1.66				(2.82)
Dividends declared per common share (in Dollars per share)					0.53				0.43
Net asset value per common share (in Dollars per share)					$ 28.69				$ 28.7				$ 25.11

[1] Certain prior period amounts have been reclassified to conform to current period presentation.