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INVESTMENTS - Investment Portfolio, at Fair Value and Cost (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 2023
Mar. 31, 2023
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 1,285,318 [1],[2],[3] $ 1,206,388 [4],[5],[6]
Percentage of Net Assets at Fair Value 202.00% [1],[2] 204.30%
Cost $ 1,287,025 [1],[2],[7],[8] $ 1,220,152 [4],[5],[9],[10]
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 $ 1,075,200 $ 1,000,984
Percentage of Net Assets at Fair Value 169.00% 169.50%
Cost $ 1,081,838 $ 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 83.70% 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 84.10% 83.50%
Second lien loans    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 34,935 $ 35,820
Percentage of Net Assets at Fair Value 5.50% 6.10%
Cost $ 44,030 $ 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 2.70% 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 3.40% 3.60%
Subordinated debt    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 780 $ 791
Percentage of Net Assets at Fair Value 0.10% 0.10%
Cost $ 752 $ 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 $ 67,659 $ 63,393
Percentage of Net Assets at Fair Value 10.60% 10.70%
Cost $ 45,479 $ 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 5.20% 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 3.50% 3.60%
Common equity & warrants    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 54,882 $ 54,144
Percentage of Net Assets at Fair Value 8.60% 9.20%
Cost $ 34,126 $ 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 4.30% 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 $ 51,862 $ 51,256
Percentage of Net Assets at Fair Value 8.20% 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 6.30% 6.60%
Southeast    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 251,212 $ 235,782
Percentage of Net Assets at Fair Value 39.50% 39.90%
Cost $ 241,695 $ 236,333
Southeast | Percentage of Total Portfolio at Fair Value | Geographic    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 19.50% 19.50%
Southeast | Percentage of Total Portfolio at Cost | Geographic    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 18.80% 19.40%
Northeast    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 300,600 $ 269,569
Percentage of Net Assets at Fair Value 47.20% 45.70%
Cost $ 283,887 $ 255,995
Northeast | Percentage of Total Portfolio at Fair Value | Geographic    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 23.40% 22.30%
Northeast | Percentage of Total Portfolio at Cost | Geographic    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 22.00% 21.00%
West    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 252,718 $ 233,079
Percentage of Net Assets at Fair Value 39.70% 39.50%
Cost $ 250,093 $ 232,109
West | Percentage of Total Portfolio at Fair Value | Geographic    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 19.70% 19.30%
West | Percentage of Total Portfolio at Cost | Geographic    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 19.40% 19.00%
Southwest    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 227,175 $ 234,127
Percentage of Net Assets at Fair Value 35.70% 39.60%
Cost $ 227,659 $ 231,467
Southwest | Percentage of Total Portfolio at Fair Value | Geographic    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 17.70% 19.40%
Southwest | Percentage of Total Portfolio at Cost | Geographic    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 17.70% 19.00%
Midwest    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 157,164 $ 156,233
Percentage of Net Assets at Fair Value 24.70% 26.40%
Cost $ 159,619 $ 158,989
Midwest | Percentage of Total Portfolio at Fair Value | Geographic    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 12.20% 13.10%
Midwest | Percentage of Total Portfolio at Cost | Geographic    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 12.40% 13.00%
I-45 SLF LLC    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 51,862 $ 51,256
Percentage of Net Assets at Fair Value 8.20% 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 6.30% 6.60%
International    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 44,587 $ 26,342
Percentage of Net Assets at Fair Value 7.00% 4.50%
Cost $ 43,272 $ 24,459
International | Percentage of Total Portfolio at Fair Value | Geographic    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 3.50% 2.20%
International | Percentage of Total Portfolio at Cost | Geographic    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 3.40% 2.00%
Media & Marketing    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 163,882 $ 149,357
Percentage of Net Assets at Fair Value 25.80% 25.30%
Cost $ 156,900 $ 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 12.80% 12.40%
Media & Marketing | Percentage of Total Portfolio at Cost | Industry    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 12.20% 11.50%
Business Services    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 164,196 $ 146,727
Percentage of Net Assets at Fair Value 25.80% 24.90%
Cost $ 167,159 $ 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 12.80% 12.20%
Business Services | Percentage of Total Portfolio at Cost | Industry    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 13.00% 12.10%
Healthcare Services    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 135,403 $ 126,971
Percentage of Net Assets at Fair Value 21.30% 21.50%
Cost $ 144,358 $ 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 10.50% 10.50%
Healthcare Services | Percentage of Total Portfolio at Cost | Industry    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 11.20% 11.80%
Consumer Services    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 97,949 $ 91,913
Percentage of Net Assets at Fair Value 15.40% 15.60%
Cost $ 95,877 $ 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 7.60% 7.60%
Consumer Services | Percentage of Total Portfolio at Cost | Industry    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 7.50% 7.50%
Consumer Products and Retail    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 98,022 $ 86,385
Percentage of Net Assets at Fair Value 15.40% 14.60%
Cost $ 98,132 $ 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 7.60% 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 7.60% 7.10%
Food, Agriculture & Beverage    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 69,867 $ 68,833
Percentage of Net Assets at Fair Value 11.00% 11.70%
Cost $ 75,056 $ 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 5.40% 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 5.80% 6.00%
Healthcare Products    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 73,118 $ 66,355
Percentage of Net Assets at Fair Value 11.50% 11.20%
Cost $ 74,062 $ 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 5.70% 5.50%
Healthcare Products | Percentage of Total Portfolio at Cost | Industry    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 5.80% 5.50%
Technology Products & Components    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 55,133 $ 59,718
Percentage of Net Assets at Fair Value 8.60% 10.10%
Cost $ 43,031 $ 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 4.30% 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 3.30% 3.50%
I-45 SLF LLC    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 51,862 $ 51,256
Percentage of Net Assets at Fair Value 8.20% 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 6.30% 6.60%
Transportation & Logistics    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 50,416 $ 48,494
Percentage of Net Assets at Fair Value 7.90% 8.20%
Cost $ 41,558 $ 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 3.90% 4.00%
Transportation & Logistics | Percentage of Total Portfolio at Cost | Industry    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 3.20% 3.40%
Software & IT Services    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 53,144 $ 47,641
Percentage of Net Assets at Fair Value 8.40% 8.10%
Cost $ 53,170 $ 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 4.10% 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 4.10% 3.90%
Financial Services    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 42,210 $ 40,420
Percentage of Net Assets at Fair Value 6.60% 6.80%
Cost $ 28,535 $ 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 3.30% 3.30%
Financial Services | Percentage of Total Portfolio at Cost | Industry    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 2.20% 2.50%
Industrial Products    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 36,055 $ 32,518
Percentage of Net Assets at Fair Value 5.70% 5.50%
Cost $ 25,812 $ 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 2.80% 2.70%
Industrial Products | Percentage of Total Portfolio at Cost | Industry    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 2.00% 2.10%
Environmental Services    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 27,757 $ 29,753
Percentage of Net Assets at Fair Value 4.30% 5.00%
Cost $ 34,810 $ 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 2.20% 2.50%
Environmental Services | Percentage of Total Portfolio at Cost | Industry    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 2.70% 2.90%
Education    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 26,402 $ 26,357
Percentage of Net Assets at Fair Value 4.10% 4.50%
Cost $ 24,886 $ 25,995
Education | Percentage of Total Portfolio at Fair Value | Industry    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 2.10% 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 $ 23,393 $ 25,460
Percentage of Net Assets at Fair Value 3.70% 4.30%
Cost $ 22,881 $ 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 1.80% 2.10%
Industrial Services | Percentage of Total Portfolio at Cost | Industry    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 1.80% 2.00%
Energy Services (Midstream)    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 22,992 $ 22,829
Percentage of Net Assets at Fair Value 3.60% 3.90%
Cost $ 23,494 $ 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 1.80% 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 1.80% 1.90%
Specialty Chemicals    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 15,213 $ 17,839
Percentage of Net Assets at Fair Value 2.40% 3.00%
Cost $ 14,963 $ 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 1.20% 1.50%
Specialty Chemicals | Percentage of Total Portfolio at Cost | Industry    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 1.20% 1.40%
Energy Services (Upstream)    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 14,676 $ 17,730
Percentage of Net Assets at Fair Value 2.30% 3.00%
Cost $ 14,411 $ 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 1.10% 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 1.10% 1.40%
Telecommunications    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 16,344 $ 17,386
Percentage of Net Assets at Fair Value 2.60% 2.90%
Cost $ 16,060 $ 21,796
Telecommunications | Percentage of Total Portfolio at Fair Value | Industry    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 1.30% 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 $ 15,270 $ 16,315
Percentage of Net Assets at Fair Value 2.40% 2.80%
Cost $ 18,702 $ 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 1.50% 1.50%
Containers & Packaging    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 10,170 $ 10,131
Percentage of Net Assets at Fair Value 1.60% 1.70%
Cost $ 10,640 $ 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 0.80% 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%
Aerospace & Defense    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 21,844 $ 6,000
Percentage of Net Assets at Fair Value 3.40% 1.00%
Cost $ 21,728 $ 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 1.70% 0.50%
Aerospace & Defense | Percentage of Total Portfolio at Cost | Industry    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Percentage of Total Portfolio 1.70% 0.50%
First lien last out loans    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value $ 33,500 $ 50,100
Split lien term loans included in first lien loans    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Fair Value 44,200 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 debt investments are income-producing, unless otherwise noted. Equity investments are non-income producing, 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] 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 1940 Act, using significant unobservable Level 3 inputs. Refer to Note 4 - Fair Value Measurements for further discussion.
[4] All debt investments are income-producing, unless otherwise noted. Equity investments are non-income producing, unless otherwise noted.
[5] 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.
[6] 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.
[7] As of June 30, 2023, the cumulative gross unrealized appreciation for U.S. federal income tax purposes was approximately $82.7 million; cumulative gross unrealized depreciation for federal income tax purposes was $68.3 million. Cumulative net unrealized appreciation was $14.4 million, based on a tax cost of $1,275.4 million.
[8] Negative cost in this column represents the original issue discount of certain undrawn revolvers and delayed draw term loans.
[9] 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.
[10] Negative cost in this column represents the original issue discount of certain undrawn revolvers and delayed draw term loans.