INVESTMENTS - Investment Portfolio, at Fair Value and Cost (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Dec. 31, 2023		Mar. 31, 2023
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 1,365,037	[1],[2],[3],[4],[5],[6],[7]	$ 1,206,388	[8],[9],[10]
Percentage of Net Assets at Fair Value	189.33%	[1],[2],[3],[4],[5],[6]	204.30%
Cost	$ 1,369,906	[1],[2],[3],[4],[5],[6],[11],[12]	$ 1,220,152	[8],[9],[13],[14]
Percentage of Total Portfolio at Fair Value | Investment Type
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	100.00%		100.00%
Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	100.00%		100.00%
Percentage of Total Portfolio at Fair Value | Geographic
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	100.00%		100.00%
Percentage of Total Portfolio at Cost | Investment Type
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	100.00%		100.00%
Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	100.00%		100.00%
Percentage of Total Portfolio at Cost | Geographic
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	100.00%		100.00%
First lien loans
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 1,146,355		$ 1,000,984
Percentage of Net Assets at Fair Value	159.00%		169.50%
Cost	$ 1,155,923		$ 1,018,595
First lien loans | Percentage of Total Portfolio at Fair Value | Investment Type
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	84.00%		83.00%
First lien loans | Percentage of Total Portfolio at Cost | Investment Type
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	84.40%		83.50%
Second lien loans
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 34,614		$ 35,820
Percentage of Net Assets at Fair Value	4.80%		6.10%
Cost	$ 41,846		$ 44,038
Second lien loans | Percentage of Total Portfolio at Fair Value | Investment Type
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	2.50%		3.00%
Second lien loans | Percentage of Total Portfolio at Cost | Investment Type
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	3.00%		3.60%
Subordinated debt
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 768		$ 791
Percentage of Net Assets at Fair Value	0.10%		0.10%
Cost	$ 768		$ 763
Subordinated debt | Percentage of Total Portfolio at Fair Value | Investment Type
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	0.10%		0.10%
Subordinated debt | Percentage of Total Portfolio at Cost | Investment Type
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	0.10%		0.10%
Preferred equity
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 68,644		$ 63,393
Percentage of Net Assets at Fair Value	9.50%		10.70%
Cost	$ 54,314		$ 43,634
Preferred equity | Percentage of Total Portfolio at Fair Value | Investment Type
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	5.00%		5.20%
Preferred equity | Percentage of Total Portfolio at Cost | Investment Type
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	4.00%		3.60%
Common equity & warrants
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 60,456		$ 54,144
Percentage of Net Assets at Fair Value	8.40%		9.20%
Cost	$ 36,255		$ 32,322
Common equity & warrants | Percentage of Total Portfolio at Fair Value | Investment Type
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	4.40%		4.50%
Common equity & warrants | Percentage of Total Portfolio at Cost | Investment Type
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	2.60%		2.60%
I-45 SLF LLC
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 54,200		$ 51,256
Percentage of Net Assets at Fair Value	7.50%		8.70%
Cost	$ 80,800		$ 80,800
I-45 SLF LLC | Percentage of Total Portfolio at Fair Value | Investment Type
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	4.00%		4.20%
I-45 SLF LLC | Percentage of Total Portfolio at Cost | Investment Type
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	5.90%		6.60%
Northeast
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 355,661		$ 269,569
Percentage of Net Assets at Fair Value	49.30%		45.70%
Cost	$ 336,213		$ 255,995
Northeast | Percentage of Total Portfolio at Fair Value | Geographic
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	26.10%		22.30%
Northeast | Percentage of Total Portfolio at Cost | Geographic
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	24.50%		21.00%
Southeast
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 209,207		$ 235,782
Percentage of Net Assets at Fair Value	29.00%		39.90%
Cost	$ 210,688		$ 236,333
Southeast | Percentage of Total Portfolio at Fair Value | Geographic
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	15.30%		19.50%
Southeast | Percentage of Total Portfolio at Cost | Geographic
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	15.40%		19.40%
Southwest
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 231,386		$ 234,127
Percentage of Net Assets at Fair Value	32.10%		39.60%
Cost	$ 236,949		$ 231,467
Southwest | Percentage of Total Portfolio at Fair Value | Geographic
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	16.90%		19.40%
Southwest | Percentage of Total Portfolio at Cost | Geographic
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	17.30%		19.00%
West
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 296,438		$ 233,079
Percentage of Net Assets at Fair Value	41.10%		39.50%
Cost	$ 288,503		$ 232,109
West | Percentage of Total Portfolio at Fair Value | Geographic
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	21.70%		19.30%
West | Percentage of Total Portfolio at Cost | Geographic
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	21.10%		19.00%
Midwest
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 172,267		$ 156,233
Percentage of Net Assets at Fair Value	23.90%		26.40%
Cost	$ 173,508		$ 158,989
Midwest | Percentage of Total Portfolio at Fair Value | Geographic
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	12.60%		13.10%
Midwest | Percentage of Total Portfolio at Cost | Geographic
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	12.70%		13.00%
I-45 SLF LLC
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 54,200		$ 51,256
Percentage of Net Assets at Fair Value	7.50%		8.70%
Cost	$ 80,800		$ 80,800
I-45 SLF LLC | Percentage of Total Portfolio at Fair Value | Geographic
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	4.00%		4.20%
I-45 SLF LLC | Percentage of Total Portfolio at Cost | Geographic
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	5.90%		6.60%
International
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 45,878		$ 26,342
Percentage of Net Assets at Fair Value	6.40%		4.50%
Cost	$ 43,245		$ 24,459
International | Percentage of Total Portfolio at Fair Value | Geographic
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	3.40%		2.20%
International | Percentage of Total Portfolio at Cost | Geographic
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	3.10%		2.00%
Healthcare Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 201,462		$ 126,971
Percentage of Net Assets at Fair Value	27.90%		21.50%
Cost	$ 211,005		$ 143,455
Healthcare Services | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	14.80%		10.50%
Healthcare Services | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	15.40%		11.80%
Business Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 148,002		$ 146,727
Percentage of Net Assets at Fair Value	20.50%		24.90%
Cost	$ 155,291		$ 147,056
Business Services | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	10.80%		12.20%
Business Services | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	11.30%		12.10%
Media & Marketing
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 172,578		$ 149,357
Percentage of Net Assets at Fair Value	23.90%		25.30%
Cost	$ 168,006		$ 139,750
Media & Marketing | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	12.60%		12.40%
Media & Marketing | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	12.30%		11.50%
Consumer Products and Retail
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 85,638		$ 86,385
Percentage of Net Assets at Fair Value	11.90%		14.60%
Cost	$ 83,561		$ 86,607
Consumer Products and Retail | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	6.30%		7.20%
Consumer Products and Retail | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	6.10%		7.10%
Consumer Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 100,527		$ 91,913
Percentage of Net Assets at Fair Value	13.90%		15.60%
Cost	$ 99,903		$ 91,142
Consumer Services | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	7.40%		7.60%
Consumer Services | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	7.30%		7.50%
Healthcare Products
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 80,257		$ 66,355
Percentage of Net Assets at Fair Value	11.20%		11.20%
Cost	$ 78,335		$ 67,555
Healthcare Products | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	5.90%		5.50%
Healthcare Products | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	5.70%		5.50%
Food, Agriculture & Beverage
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 89,397		$ 68,833
Percentage of Net Assets at Fair Value	12.40%		11.70%
Cost	$ 97,909		$ 73,223
Food, Agriculture & Beverage | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	6.50%		5.70%
Food, Agriculture & Beverage | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	7.10%		6.00%
I-45 SLF LLC
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 54,200		$ 51,256
Percentage of Net Assets at Fair Value	7.50%		8.70%
Cost	$ 80,800		$ 80,800
I-45 SLF LLC | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	4.00%		4.20%
I-45 SLF LLC | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	5.90%		6.60%
Financial Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 57,827		$ 40,420
Percentage of Net Assets at Fair Value	8.00%		6.80%
Cost	$ 42,913		$ 30,950
Financial Services | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	4.20%		3.30%
Financial Services | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	3.10%		2.50%
Technology Products & Components
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 15,812		$ 59,718
Percentage of Net Assets at Fair Value	2.20%		10.10%
Cost	$ 9,838		$ 43,016
Technology Products & Components | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	1.20%		5.00%
Technology Products & Components | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	0.70%		3.50%
Transportation & Logistics
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 54,361		$ 48,494
Percentage of Net Assets at Fair Value	7.50%		8.20%
Cost	$ 46,502		$ 42,049
Transportation & Logistics | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	4.00%		4.00%
Transportation & Logistics | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	3.40%		3.40%
Industrial Products
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 52,545		$ 32,518
Percentage of Net Assets at Fair Value	7.30%		5.50%
Cost	$ 39,484		$ 25,827
Industrial Products | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	3.90%		2.70%
Industrial Products | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	2.90%		2.10%
Software & IT Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 33,211		$ 47,641
Percentage of Net Assets at Fair Value	4.60%		8.10%
Cost	$ 32,186		$ 47,563
Software & IT Services | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	2.40%		3.90%
Software & IT Services | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	2.30%		3.90%
Environmental Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 44,165		$ 29,753
Percentage of Net Assets at Fair Value	6.10%		5.00%
Cost	$ 43,153		$ 34,869
Environmental Services | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	3.30%		2.50%
Environmental Services | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	3.20%		2.90%
Education
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 22,466		$ 26,357
Percentage of Net Assets at Fair Value	3.10%		4.50%
Cost	$ 25,539		$ 25,995
Education | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	1.60%		2.20%
Education | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	1.90%		2.10%
Industrial Services
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 29,924		$ 25,460
Percentage of Net Assets at Fair Value	4.20%		4.30%
Cost	$ 29,438		$ 24,920
Industrial Services | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	2.20%		2.10%
Industrial Services | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	2.10%		2.00%
Energy Services (Midstream)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 15,313		$ 22,829
Percentage of Net Assets at Fair Value	2.10%		3.90%
Cost	$ 15,223		$ 23,337
Energy Services (Midstream) | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	1.10%		1.90%
Energy Services (Midstream) | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	1.10%		1.90%
Aerospace & Defense
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 22,500		$ 6,000
Percentage of Net Assets at Fair Value	3.10%		1.00%
Cost	$ 21,792		$ 5,898
Aerospace & Defense | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	1.60%		0.50%
Aerospace & Defense | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	1.60%		0.50%
Restaurants
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 15,680
Percentage of Net Assets at Fair Value	2.20%
Cost	$ 15,664
Restaurants | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	1.10%
Restaurants | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	1.10%
Telecommunications
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 15,818		$ 17,386
Percentage of Net Assets at Fair Value	2.20%		2.90%
Cost	$ 16,619		$ 21,796
Telecommunications | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	1.20%		1.40%
Telecommunications | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	1.30%		1.90%
Distribution
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 16,490		$ 16,315
Percentage of Net Assets at Fair Value	2.30%		2.80%
Cost	$ 18,611		$ 18,755
Distribution | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	1.20%		1.40%
Distribution | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	1.40%		1.50%
Specialty Chemicals
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 15,102		$ 17,839
Percentage of Net Assets at Fair Value	2.10%		3.00%
Cost	$ 15,100		$ 17,531
Specialty Chemicals | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	1.10%		1.50%
Specialty Chemicals | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	1.10%		1.40%
Energy Services (Upstream)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 12,586		$ 17,730
Percentage of Net Assets at Fair Value	1.80%		3.00%
Cost	$ 12,384		$ 17,402
Energy Services (Upstream) | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	0.90%		1.50%
Energy Services (Upstream) | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	0.90%		1.40%
Containers & Packaging
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 9,176		$ 10,131
Percentage of Net Assets at Fair Value	1.30%		1.70%
Cost	$ 10,650		$ 10,656
Containers & Packaging | Percentage of Total Portfolio at Fair Value | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	0.70%		0.80%
Containers & Packaging | Percentage of Total Portfolio at Cost | Industry
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Percentage of Total Portfolio	0.80%		0.90%
First lien last out loans
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 34,700		$ 50,100
Split lien term loans included in first lien loans
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	43,800		45,000
Split lien term loans included in second lien loans
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	20,500		20,200
Unsecured convertible Note
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 400		$ 400

[1] All portfolio company headquarters are based in the United States, unless otherwise noted.

[2] Equity ownership may be held in shares or units of a company that is either wholly owned by the portfolio company or under common control by the same parent company to the portfolio company.

[3] Non-Control/Non-Affiliate investments are generally defined by the 1940 Act, as investments that are neither control investments nor affiliate investments. At December 31, 2023, the Company held $1,124.9 million of non-control/non-affiliate investments, which represented approximately 82.4% of the Company’s investment assets. The fair value of these investments as a percent of net assets is 156.0%.

[4] Affiliate investments are generally defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as control investments. At December 31, 2023, the Company held $186.0 million of affiliate investments, which represented approximately 13.6% of the Company’s investment assets. The fair value of these investments as a percent of net assets is 25.8%.

[5] All debt investments are income-producing, unless otherwise noted. Equity investments are non-income producing, unless otherwise noted.

[6] Control investments are generally defined by the 1940 Act as investments in which more than 25% of the voting securities are owned. At December 31, 2023, the Company held $54.2 million of control investments, which represented approximately 4.0% of the Company’s investment assets were . The fair value of these investments as a percent of net assets is 7.5%.

[7] The Company's investment portfolio is comprised entirely of debt and equity securities of privately held companies for which quoted prices falling within the categories of Level 1 and Level 2 inputs are not readily available. Therefore, the Company values all of its portfolio investments at fair value, as determined in good faith by the valuation committee comprised of certain officers of the Company (the "Valuation Committee") as the valuation designee of the Board of Directors (the "Valuation Designee") pursuant to Rule 2a-5 under the Investment Company Act of 1940, as amended (the “1940 Act”), using significant unobservable Level 3 inputs. Refer to Note 4 - Fair Value Measurements for further discussion.

[8] Equity ownership may be held in shares or units of a company that is either wholly owned by the portfolio company or under common control by the same parent company to the portfolio company.

[9] All debt investments are income-producing, unless otherwise noted. Equity investments are non-income producing, unless otherwise noted.

[10] The Company's investment portfolio is comprised entirely of debt and equity securities of privately held companies for which quoted prices falling within the categories of Level 1 and Level 2 inputs are not readily available. Therefore, the Company values all of its portfolio investments at fair value, as determined in good faith by the Board of Directors, using significant unobservable Level 3 inputs. Refer to Note 4 - Fair Value Measurements to our audited consolidated financial statements for further discussion.

[11] As of December 31, 2023, the cumulative gross unrealized appreciation for U.S. federal income tax purposes was approximately $86.8 million; cumulative gross unrealized depreciation for federal income tax purposes was $72.0 million. Cumulative net unrealized appreciation was $14.8 million, based on a tax cost of $1,350.2 million.

[12] Negative cost in this column represents the original issue discount of certain undrawn revolvers and delayed draw term loans.

[13] As of March 31, 2023, the cumulative gross unrealized appreciation for U.S. federal income tax purposes was approximately $72.3 million; cumulative gross unrealized depreciation for federal income tax purposes was $76.8 million. Cumulative net unrealized depreciation was $4.5 million, based on a tax cost of $1,210.8 million.

[14] Negative cost in this column represents the original issue discount of certain undrawn revolvers and delayed draw term loans.