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Investments - Summary of Details Investments in Affiliates (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance $ 467,865,000    
Fair Value, Ending Balance 471,255,000   $ 467,865,000
Principal 430,400,000   420,900,000
Total dividend income 1,653,000 $ 2,459,000  
Investment, Identifier [Axis]: 14.5% PIK Maturity 3/1/28, Initial Acquisition Date 3/1/22 Debt Securities Portfolio Senior Secured Loans American Academy Holdings, LLC Term Loan Healthcare & Pharmaceuticals Interest Rate 14.5% PIK Maturity 3/1/28, Initial Acquisition Date 3/1/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 5,237,000    
Fair Value, Ending Balance [1],[2],[3]     5,237,000
Principal [1],[2]     5,909,000
Investment, Identifier [Axis]: CLO Fund Securities Net Asset Value at Fair Value      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [3] 8,968,000    
Fair Value, Ending Balance 8,549,000 [4]   8,968,000 [3]
Investment, Identifier [Axis]: CLO Fund Securities Portfolio Catamaran CLO 2014-1 Ltd. Subordinated Securities, effective interest 13.7% CLO Fund Securities Maturity 4/20/30 Percentage Ownership 22.2% Initial Acquisition Date 5/6/14      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[3],[5] 904,000    
Fair Value, Ending Balance [1],[3],[5]     904,000
Investment, Identifier [Axis]: CLO Fund Securities Portfolio Catamaran CLO 2018-1 Ltd. Subordinated Securities, effective interest 25% CLO Fund Securities Maturity 10/27/31 Percentage Ownership 24.8% Initial Acquisition Date 9/27/18      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[3],[5] 3,923,000    
Fair Value, Ending Balance [1],[3],[5]     3,923,000
Investment, Identifier [Axis]: CLO Fund Securities Portfolio Dryden 30 Senior Loan Fund Subordinated Securities, effective interest 25.4% CLO Fund Securities Maturity 11/1/28 Percentage Ownership 6.8% Initial Acquisition Date 10/10/13      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[3],[5] 409,000    
Fair Value, Ending Balance [1],[3],[5]     409,000
Investment, Identifier [Axis]: CLO Fund Securities Portfolio JMP Credit Advisors CLO IV LTD Subordinated Securities, effective interest 19.8% CLO Fund Securities Maturity 7/17/29 Percentage Ownership 57.2% Initial Acquisition Date 10/22/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[3],[5] 683,000    
Fair Value, Ending Balance [1],[3],[5]     683,000
Investment, Identifier [Axis]: CLO Fund Securities Portfolio JMP Credit Advisors CLO V LTD Subordinated Securities, effective interest 25.3% CLO Fund Securities Maturity 7/17/30 Percentage Ownership 57.2% Initial Acquisition Date 10/22/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[3],[5] 3,049,000    
Fair Value, Ending Balance [1],[3],[5]     3,049,000
Investment, Identifier [Axis]: CLO Subordinated Investments Portfolio Catamaran CLO 2014-1 Ltd. Subordinated Securities, effective interest 13.7% CLO Fund Securities Maturity 4/20/30 Percentage Ownership 22.2% Initial Acquisition Date 5/6/14      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[7] 702,000    
Investment, Identifier [Axis]: CLO Subordinated Investments Portfolio Catamaran CLO 2018-1 Ltd. Subordinated Securities, effective interest 24.9% CLO Fund Securities Maturity 10/27/31 Percentage Ownership 24.8% Initial Acquisition Date 9/27/18      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[7] 3,757,000    
Investment, Identifier [Axis]: CLO Subordinated Investments Portfolio Dryden 30 Senior Loan Fund Subordinated Securities, effective interest 25.3% CLO Fund Securities Maturity 11/1/28 Percentage Ownership 6.8% Initial Acquisition Date 10/10/13      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[7] 246,000    
Investment, Identifier [Axis]: CLO Subordinated Investments Portfolio JMP Credit Advisors CLO IV Ltd. Subordinated Securities, effective interest 22.0% CLO Fund Securities Maturity 7/17/29 Percentage Ownership 57.2% Initial Acquisition Date 10/22/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[7] 668,000    
Investment, Identifier [Axis]: CLO Subordinated Investments Portfolio JMP Credit Advisors CLO V Ltd. Subordinated Securities, effective interest 27.8% CLO Fund Securities Maturity 7/17/30 Percentage Ownership 57.2% Initial Acquisition Date 10/22/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[7] 3,176,000    
Investment, Identifier [Axis]: Controlled Affiliates BMP Slappey Investment II Industry Classification - Telecommunications      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [8],[9],[10],[11] 246,000 206,000 206,000
Net Change in Unrealized Gain/(Loss) [8],[9],[10],[11]     40,000
Fair Value, Ending Balance [8],[9],[10],[11]     246,000
Principal [8],[9],[10],[11]     88,946
Investment, Identifier [Axis]: Controlled Affiliates Flight Lease VII Industry Classification - Aerospace and Defense      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [9],[10],[12],[13]   242,000 242,000
Purchases/ (sales) of or Advances/ (Distributions) [13] (1,000) [14],[15],[16]   (248,000) [10],[12]
Net Change in Unrealized Gain/(Loss) [13] 1,000 [14],[15],[16]   39,000 [10],[12]
Realized Gain/(Loss) [10],[12],[13]     (33,000)
Fair Value, Ending Balance [13],[14],[15],[16] 0    
Investment, Identifier [Axis]: Controlled Affiliates GreenPark Infrastructure, LLC Industry Classification - Energy: Electricity      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [8],[9],[10],[11] 500,000 500,000 500,000
Fair Value, Ending Balance [8],[9],[10],[11]     500,000
Principal [8],[9],[10],[11]     1,000
Investment, Identifier [Axis]: Controlled Affiliates GreenPark Infrastructure, LLC Industry Classification - Energy: Electricity One      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [8],[9],[10],[11],[17] 171,000 171,000 171,000
Fair Value, Ending Balance [8],[9],[10],[11],[17]     171,000
Principal [8],[9],[10],[11],[17]     500
Investment, Identifier [Axis]: Controlled Affiliates KCAP Freedom 3, LLC Industry Classification - Joint Venture      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [13],[18] 14,275,000 18,668,000 18,668,000
Purchases/ (sales) of or Advances/ (Distributions) [13],[18] (968,000)    
Net Change in Unrealized Gain/(Loss) [13],[18] 216,000   (4,393,000)
Fair Value, Ending Balance [13],[18] 13,523,000   14,275,000
Principal [13],[18] 27,220   27,220
Total dividend income [13],[18] 0   2,184,000
Investment, Identifier [Axis]: Controlled Affiliates ProAir, LLC Industry Classification - Capital Equipment One      
Summary of Investment Holdings [Line Items]      
Principal [13],[16] 2,020 [18]   2,749,997 [14],[15]
Investment, Identifier [Axis]: Controlled Affiliates ProAir, LLC Industry Classification - Capital Equipment Two      
Summary of Investment Holdings [Line Items]      
Principal [13],[16],[18]     2,020
Investment, Identifier [Axis]: Controlled Affiliates ProAir, LLC Industry Classififcation - Capital Equipment      
Summary of Investment Holdings [Line Items]      
Principal [13],[15],[16],[18] 2,749,997    
Investment, Identifier [Axis]: Controlled Affiliates Series A-Great Lakes Funding II LLC Industry Classification - Joint Venture      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [9],[11],[17] 45,012,000 40,287,000 40,287,000
Purchases/ (sales) of or Advances/ (Distributions) [9],[11],[17]     2,565,000
Net Change in Unrealized Gain/(Loss) [9],[11],[17]     2,160,000
Fair Value, Ending Balance [9],[11],[17]     45,012,000
Principal [9],[11],[17]     44,000
Total dividend income [9],[11],[17]     6,764,000
Investment, Identifier [Axis]: Controlled Affiliates Tank Partners Equipment Holdings, LLC Industry Classification - Energy: Oil & Gas      
Summary of Investment Holdings [Line Items]      
Principal 49,000 [13],[15],[16],[18]   49,000 [8],[9],[10],[19]
Investment, Identifier [Axis]: Controlled Affiliates Tank Partners Equipment Holdings, LLC Industry Classification - Energy: Oil & Gas One      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [13],[14],[16],[18] 43,000 43,000 43,000
Net Change in Unrealized Gain/(Loss) [13],[16],[18] 373,000    
Realized Gain/(Loss) [13],[16],[18] (416,000)    
Fair Value, Ending Balance [13],[16],[18] 0   43,000 [14]
Principal [13],[16],[18] 0   511 [14]
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans American Academy Holdings, LLC Term Loan Second Lien Healthcare & Pharmaceuticals Interest Rate 14.5% PIK Maturity 3/1/28, Initial Acquisition Date 3/1/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20] 5,487,000    
Principal [6],[20] 6,122,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Confluence Technologies, Inc. Term Loan Second Lien Services: Business Interest Rate 12.0% Cash Reference Rate and Spread SOFR+6.50% Floor 0.50% Maturity 7/23/29, Initial Acquisition Date 7/22/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 3,605,000    
Fair Value, Ending Balance 3,670,000 [4],[6],[20],[22]   3,605,000 [1],[2],[3],[21]
Principal 4,000,000 [6],[20],[22]   4,000,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Dcert Buyer, Inc. Term Loan (Second Lien) High Tech Industries Interest Rate 12.3% Cash Reference Rate and Spread SOFR+7.00% Maturity 2/16/29, Initial Acquisition Date 3/16/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[20],[22] 4,904,000    
Principal [20],[22] 5,400,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Dcert Buyer, Inc. Term Loan (Second Lien) High Tech Industries Interest Rate 12.4% Cash Reference Rate and Spread SOFR+7.00% Maturity 2/16/29, Initial Acquisition Date 3/16/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 4,941,000    
Fair Value, Ending Balance [2],[3],[21]     4,941,000
Principal [2],[21]     5,400,000
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Global Tel*Link Corporation Term Loan (Second Lien) Telecommunications Interest Rate 15.3% Cash Reference Rate and Spread SOFR+10.00% Maturity 11/29/26, Initial Acquisition Date 12/23/19      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[20],[22] 1,430,000    
Principal [20],[22] 1,500,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Global Tel*Link Corporation Term Loan (Second Lien) Telecommunications Interest Rate 15.5% Cash Reference Rate and Spread SOFR+10.00% Maturity 11/29/26, Initial Acquisition Date 12/23/19      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 1,336,000    
Fair Value, Ending Balance [2],[3],[21]     1,336,000
Principal [2],[21]     1,500,000
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Idera, Inc. Term Loan (Second Lien) High Tech Industries Interest Rate 12.2% Cash Reference Rate and Spread SOFR+6.75% Floor 0.75% Maturity 2/4/29, Initial Acquisition Date 4/29/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 5,873,000    
Principal [6],[20],[22] 6,000,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Idera, Inc. Term Loan (Second Lien) High Tech Industries Interest Rate 12.3% Cash Reference Rate and Spread SOFR+6.75% Floor 0.75% Maturity 2/4/29, Initial Acquisition Date 4/29/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 5,811,000    
Fair Value, Ending Balance [1],[2],[3],[21]     5,811,000
Principal [1],[2],[21]     6,000,000
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Ivanti Software, Inc. Term Loan Second Lien High Tech Industries Interest Rate 12.8% Cash Reference Rate and Spread SOFR+7.25% Floor 0.50% Maturity 12/1/28, Initial Acquisition Date 10/26/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[20],[22] 5,213,000    
Principal [20],[22] 6,000,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Ivanti Software, Inc. Term Loan Second Lien High Tech Industries Interest Rate 12.9% Cash Reference Rate and Spread SOFR+7.25% Floor 0.50% Maturity 12/1/28, Initial Acquisition Date 10/26/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 4,870,000    
Fair Value, Ending Balance [2],[3],[21]     4,870,000
Principal [2],[21]     6,000,000
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Lucky Bucks Holdings LLC Promissory Note Hotel, Gaming & Leisure Interest Rate 12.5% PIK Maturity 5/29/28, Initial Acquisition Date 1/14/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[23] 1,181,000    
Fair Value, Ending Balance 1,212,000 [4],[6],[20],[24]   1,181,000 [1],[2],[3],[23]
Principal 6,258,000 [6],[20],[24]   6,198,000 [1],[2],[23]
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Net Asset Value at Fair Value      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [3] 38,875,000    
Fair Value, Ending Balance 36,270,000 [4]   38,875,000 [3]
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Phoenix Guarantor Inc. Term Loan Second Lien Healthcare & Pharmaceuticals Interest Rate 14.0% Cash Reference Rate and Spread SOFR+8.50% Floor 1.00% Maturity 3/5/27, Initial Acquisition Date 12/18/19      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 1,131,000    
Fair Value, Ending Balance [2],[3],[21]     1,131,000
Principal [2],[21]     1,200,000
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans ProAir, LLC Sub Note Capital Equipment Interest Rate 17.8% PIK Maturity 1/31/23, Initial Acquisition Date 3/8/22      
Summary of Investment Holdings [Line Items]      
Principal 2,020,000 [6],[20],[24],[25]   2,020,000 [1],[2],[23],[26]
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Project Leopard Holdings, Inc. 2nd Lien TL High Tech Industries Interest Rate 13.1% Cash Reference Rate and Spread SOFR+7.75% Floor 0.50% Maturity 7/20/30, Initial Acquisition Date 7/20/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 4,719,000    
Fair Value, Ending Balance 4,793,000 [4],[6],[20]   4,719,000 [1],[2],[3]
Principal 5,000,000 [6],[20]   5,000,000 [1],[2]
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Project Qualtek LLC Term Loan Second Lien High Tech Industries Reference Rate and Spread SOFR+1.00% Floor 1.00% Maturity 01/14/27, Initial Acquisition Date 07/14/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22],[24] 752,000    
Principal [6],[20],[22],[24] 4,242,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Qualtek LLC Term Loan Second Lien High Tech Industries Interest Rate 6.4% Cash + 9.0% PIK Reference Rate and Spread SOFR+1.00% Floor 1.00% Maturity 1/14/27, Initial Acquisition Date 7/14/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 2,913,000    
Fair Value, Ending Balance [2],[3],[21]     2,913,000
Principal [2],[21]     4,146,000
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Redstone Holdco 2 LP Term Loan (Second Lien) High Tech Industries Interest Rate 13.2% Cash Reference Rate and Spread SOFR+7.75% Floor 0.75% Maturity 4/16/29, Initial Acquisition Date 9/28/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 2,831,000    
Fair Value, Ending Balance 2,747,000 [4],[20],[22]   2,831,000 [2],[3],[21]
Principal 4,566,000 [20],[22]   4,566,000 [2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Robertshaw US Holding Corp. Initial Term Loan (Second Lien) Capital Equipment Interest Rate 13.5% Cash Reference Rate and Spread SOFR+8.00% Floor 1.00% Maturity 2/28/26, Initial Acquisition Date 2/15/18      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 300,000    
Fair Value, Ending Balance [1],[2],[3]     300,000
Principal [1],[2]     3,000,000
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans Robertshaw US Holding Corp. Term Loan Second Lien Capital Equipment Maturity 2/28/26, Initial Acquisition Date 2/15/18      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[24] 189,000    
Principal [6],[20],[24] 3,000,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans TRSO II, Inc. Promissory Note Energy: Oil & Gas Interest Rate 1.7% PIK Maturity 1/24/25, Initial Acquisition Date 1/24/20      
Summary of Investment Holdings [Line Items]      
Principal [1],[2],[23]     75,000
Investment, Identifier [Axis]: Debt Securities Portfolio Junior Secured Loans TRSO II, Inc. Promissory Note Energy: Oil & Gas Maturity 1/24/25, Initial Acquisition Date 1/24/20      
Summary of Investment Holdings [Line Items]      
Principal [6],[20],[24] 76,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans AIDC IntermediateCo 2, LLC First Lien Term Loan Services: Business Interest Rate 11.7% Cash Reference Rate and Spread SOFR+6.40% Floor 1.00% Maturity 7/22/27, Initial Acquisition Date 9/9/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 971,000    
Principal [6],[20],[22] 988,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans AIDC IntermediateCo 2, LLC First Lien Term Loan Services: Business Interest Rate 11.8% Cash Reference Rate and Spread SOFR+6.40% Floor 1.00% Maturity 7/22/27, Initial Acquisition Date 9/9/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 976,000    
Fair Value, Ending Balance [1],[2],[3],[21]     976,000
Principal [1],[2],[21]     990,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans AIS Holdco, LLC First Lien Term Loan A Banking, Finance, Insurance & Real Estate Interest Rate 10.3% Cash Reference Rate and Spread SOFR+5.00% Floor Maturity 8/15/25, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[20],[22] 2,125,000    
Principal [20],[22] 2,172,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans AIS Holdco, LLC First Lien Term Loan A Banking, Finance, Insurance & Real Estate Interest Rate 10.6% Cash Reference Rate and Spread SOFR+5.00% Maturity 8/15/25, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 2,220,000    
Fair Value, Ending Balance [1],[2],[3],[21]     2,220,000
Principal [1],[2],[21]     2,223,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans AMCP Pet Holdings, Inc. First Lien Term Loan Beverage, Food and Tobacco Interest Rate 11.7% Cash + 0.8% PIK Reference Rate and Spread SOFR+6.25% Floor 1.00% Maturity 10/6/26, Initial Acquisition Date 12/9/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 4,726,000    
Principal [6],[20],[22] 4,866,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans AMCP Pet Holdings, Inc. First Lien Term Loan Beverage, Food and Tobacco Interest Rate 11.8% Cash + 0.8% PIK Reference Rate and Spread SOFR+6.25% Floor 1.00% Maturity 10/6/26, Initial Acquisition Date 12/9/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 4,766,000    
Fair Value, Ending Balance [1],[2],[3],[21]     4,766,000
Principal [1],[2],[21]     4,869,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans AMCP Pet Holdings, Inc. Revolving Loan Beverage, Food and Tobacco Interest Rate 11.7% Cash Reference Rate and Spread SOFR+6.25% Floor 1.00% Maturity 10/6/26, Initial Acquisition Date 12/9/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[27] 698,000    
Principal [6],[20],[27] 727,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans AMCP Pet Holdings, Inc. Revolving Loan Beverage, Food and Tobacco Interest Rate 12.4% Cash Reference Rate and Spread SOFR+7.00% Floor 1.00% Maturity 10/6/26, Initial Acquisition Date 12/9/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[28] 630,000    
Fair Value, Ending Balance [1],[2],[3],[28]     630,000
Principal [1],[2],[28]     651,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Accordion Partners LLC Delayed Draw Term Loan Finance Interest Rate 11.3% Cash Reference Rate and Spread SOFR+6.00% Floor 0.75% Maturity 8/29/29, Initial Acquisition Date 8/31/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 864,000    
Principal [6],[20],[22] 868,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Accordion Partners LLC Delayed Draw Term Loan Finance Interest Rate 11.6% Cash Reference Rate and Spread SOFR+6.25% Floor 0.75% Maturity 8/29/29, Initial Acquisition Date 8/31/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21],[28] 700,000    
Fair Value, Ending Balance 692,000 [4],[6],[20],[22]   700,000 [1],[2],[3],[21],[28]
Principal 692,000 [6],[20],[22]   694,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Accordion Partners LLC Delayed Draw Term Loan Finance Interest Rate 11.6% Reference Rate and Spread SOFR+6.25% Floor 0.75% Cash Maturity 8/29/29, Initial Acquisition Date 8/31/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21],[28] 869,000    
Fair Value, Ending Balance [1],[2],[3],[21],[28]     869,000
Principal [1],[2],[21]     870,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Accordion Partners LLC Revolver Finance Interest Rate 0.5% Cash Floor 0.75% Maturity 8/31/28, Initial Acquisition Date 8/31/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[28] (2,000)    
Fair Value, Ending Balance [1],[2],[3],[28]     (2,000)
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Accordion Partners LLC Revolver Finance Interest Rate 11.6% Cash Reference Rate and Spread SOFR+6.25% Floor 0.75% Maturity 8/31/28, Initial Acquisition Date 8/31/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[27] 759,000    
Principal [6],[20],[27] 765,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Accordion Partners LLC Term Loan Finance Interest Rate 11.3% Cash Reference Rate and Spread SOFR+6.00% Floor 0.75% Maturity 8/29/29, Initial Acquisition Date 8/31/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 7,856,000    
Principal [6],[20],[22] 7,889,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Accordion Partners LLC Term Loan Finance Interest Rate 11.6% Cash Reference Rate and Spread SOFR+6.25% Floor 0.75% Maturity 8/29/29, Initial Acquisition Date 8/31/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 7,899,000    
Fair Value, Ending Balance [1],[2],[3],[21]     7,899,000
Principal [1],[2],[21]     7,908,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Accurate Background, LLC First Lien Term Loan Services: Business Interest Rate 11.6% Cash Reference Rate and Spread SOFR+6.00% Floor 1.00% Maturity 3/26/27, Initial Acquisition Date 9/7/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 1,424,000    
Fair Value, Ending Balance 1,444,000 [4],[6],[20],[22]   1,424,000 [1],[2],[3],[21]
Principal 1,478,000 [6],[20],[22]   1,481,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Accurate Background, LLC Term Loan Services: Business Interest Rate 11.6% Cash Reference Rate and Spread SOFR+6.00% Floor 1.00% Maturity 3/26/27, Initial Acquisition Date 10/20/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 2,818,000    
Fair Value, Ending Balance 2,857,000 [4],[6],[20],[22]   2,818,000 [1],[2],[3],[21]
Principal 2,924,000 [6],[20],[22]   2,931,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Advantage Capital Holdings LLC Term Loan Banking, Finance, Insurance & Real Estate Interest Rate 8.0% Cash + 5.0% PIK Maturity 4/14/27, Initial Acquisition Date 4/14/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 13,773,000    
Fair Value, Ending Balance 13,615,000 [4],[6],[20],[22]   13,773,000 [1],[2],[3],[21]
Principal 14,036,000 [6],[20],[22]   14,036,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans American Academy Holdings, LLC Delayed Draw Term Loan Healthcare & Pharmaceuticals Interest Rate 11.2% Cash + 5.3% PIK Reference Rate and Spread SOFR+5.75% Floor 1.00% Maturity 1/1/25, Initial Acquisition Date 3/1/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 624,000    
Fair Value, Ending Balance 633,000 [4],[6],[20],[22]   624,000 [1],[2],[3],[21]
Principal 628,000 [6],[20],[22]   620,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans American Academy Holdings, LLC First Lien Term Loan Healthcare & Pharmaceuticals Interest Rate 11.2% Cash + 5.3% PIK Reference Rate and Spread SOFR+5.75% Floor 1.00% Maturity 1/1/25, Initial Acquisition Date 3/1/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 3,144,000    
Fair Value, Ending Balance 3,191,000 [4],[6],[20]   3,144,000 [1],[2],[3]
Principal 3,163,000 [6],[20]   3,124,000 [1],[2]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Ancile Solutions, Inc. First Lien Term Loan High Tech Industries Interest Rate 15.6% Cash Reference Rate and Spread SOFR+10.00% Floor 1.00% Maturity 6/11/26, Initial Acquisition Date 6/11/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 6,285,000    
Principal [6],[20],[22] 6,230,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Ancile Solutions, Inc. First Lien Term Loan High Tech Industries Interest Rate 15.7% Cash Reference Rate and Spread SOFR+10.00% Floor 1.00% Maturity 6/11/26, Initial Acquisition Date 6/11/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 6,305,000    
Fair Value, Ending Balance [1],[2],[3],[21]     6,305,000
Principal [1],[2],[21]     6,274,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Anthem Sports & Entertainment Inc. Revolver Media: Broadcasting & Subscription Interest 15.1% Cash Reference Rate and Spread SOFR+9.50% Floor 1.00% Maturity 6/30/24, Initial Acquisition Date 8/9/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20] 444,000    
Principal [6],[20] 563,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Anthem Sports & Entertainment Inc. Revolver Media: Broadcasting & Subscription Interest 15.2% Cash Reference Rate and Spread SOFR+9.50% Floor 1.00% Maturity 6/30/24, Initial Acquisition Date 8/9/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 465,000    
Fair Value, Ending Balance [1],[2],[3]     465,000
Principal [1],[2]     547,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Anthem Sports & Entertainment Inc. Revolver Media: Broadcasting & Subscription Interest Rate 15.1% Cash Reference Rate and Spread SOFR+9.50% Floor 1.00% Maturity 11/15/26, Initial Acquisition Date 11/15/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[28] 910,000    
Fair Value, Ending Balance 863,000 [4],[6],[20],[27]   910,000 [1],[2],[3],[28]
Principal 1,115,000 [6],[20],[27]   1,084,000 [1],[2],[28]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Anthem Sports & Entertainment Inc. Term Loan Media: Broadcasting & Subscription Interest Rate 3.0% Cash + 12.1% PIK Reference Rate and Spread SOFR+3.00% Floor 1.00% Maturity 11/15/26, Initial Acquisition Date 11/15/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 10,965,000    
Fair Value, Ending Balance [1],[2],[3],[21]     10,965,000
Principal [1],[2],[21]     12,880,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Anthem Sports & Entertainment Inc. Term Loan Media: Broadcasting & Subscription Interest Rate 3.0% Cash + 12.2% PIK Reference Rate and Spread SOFR+3.00% Floor 1.00% Maturity 11/15/26, Initial Acquisition Date 11/15/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 10,444,000    
Principal [6],[20],[22] 13,240,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Appfire Technologies, LLC Term Loan High Tech Industries Interest Rate 11.0% Cash Reference Rate and Spread SOFR+5.50% Floor 1.00% Maturity 3/9/27, Initial Acquisition Date 12/20/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 5,859,000    
Fair Value, Ending Balance 5,838,000 [4],[6],[20],[22]   5,859,000 [1],[2],[3],[21]
Principal 5,879,000 [6],[20],[22]   5,894,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Aventiv Technologies, LLC Term Loan Alternative Carriers Interest Rate 10.5% Cash Reference Rate and Spread SOFR+4.89% Floor 1.00% Maturity 11/1/24, Initial Acquisition Date 12/29/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 937,000    
Fair Value, Ending Balance [1],[2],[3]     937,000
Principal [1],[2]     989,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans BW NHHC Holdco Inc. First Lien Term Loan Healthcare & Pharmaceuticals Interest Rate 12.9% Cash Reference Rate and Spread SOFR+7.50% Floor 2.00% Maturity 1/15/26, Initial Acquisition Date 12/21/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3] 969,000    
Fair Value, Ending Balance [2],[3]     969,000
Principal [2]     952,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans BetaNXT, Inc. First Lien Term Loan Banking, Finance, Insurance & Real Estate Interest Rate 11.1% Cash Reference Rate and Spread SOFR+5.75% Maturity 7/1/29, Initial Acquisition Date 7/1/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 12,104,000    
Fair Value, Ending Balance 12,034,000 [4],[6],[20],[22]   12,104,000 [1],[2],[3],[21]
Principal 12,576,000 [6],[20],[22]   12,608,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans BetaNXT, Inc. Revolver Banking, Finance, Insurance & Real Estate Interest Rate 9.6% Cash Reference Rate and Spread SOFR+4.25% Maturity 7/1/27, Initial Acquisition Date 7/1/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[28] 145,000    
Fair Value, Ending Balance 862,000 [4],[6],[20],[27]   145,000 [1],[2],[3],[28]
Principal 966,000 [6],[20],[27]   242,000 [1],[2],[28]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Bradshaw International Parent Corp. Revolver Consumer goods: Durable Interest Rate 0.5% Cash Floor 1.00% Maturity 10/21/26, Initial Acquisition Date 10/29/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[28] (25,000)    
Fair Value, Ending Balance (13,000) [4],[6],[20],[27]   (25,000) [1],[2],[3],[28]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Bradshaw International Parent Corp. Term Loan Consumer goods: Durable Interest Rate 11.2% Cash Reference Rate and Spread SOFR+5.75% Floor 1.00% Maturity 10/21/27, Initial Acquisition Date 10/29/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 482,000    
Fair Value, Ending Balance [1],[2],[3],[21]     482,000
Principal [1],[2],[21]     496,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Bradshaw International Parent Corp. Term Loan Consumer goods: Durable Interest Rate 11.2% Cash Reference Rate and Spread SOFR+5.75% Maturity 10/21/27, Initial Acquisition Date 10/29/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 488,000    
Principal [6],[20],[22] 495,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Bristol Hospice Delayed Draw Term Loan Healthcare & Pharmaceuticals Interest Rate 11.9% Cash Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 12/22/26, Initial Acquisition Date 12/22/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22],[27] 722,000    
Principal [6],[20],[22],[27] 736,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Bristol Hospice Delayed Draw Term Loan Healthcare & Pharmaceuticals Interest Rate 12.0% Cash Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 12/22/26, Initial Acquisition Date 12/22/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21],[28] 718,000    
Fair Value, Ending Balance [1],[2],[3],[21],[28]     718,000
Principal [1],[2],[21],[28]     738,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Bristol Hospice Unitranche Healthcare & Pharmaceuticals Interest Rate 11.9% Cash Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 12/22/26, Initial Acquisition Date 12/22/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22],[27] 2,026,000    
Principal [6],[20],[22],[27] 2,066,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Bristol Hospice Unitranche Healthcare & Pharmaceuticals Interest Rate 12.0% Cash Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 12/22/26, Initial Acquisition Date 12/22/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 2,017,000    
Fair Value, Ending Balance [1],[2],[3],[21]     2,017,000
Principal [1],[2],[21]     2,071,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans C.P. Converters, Inc. Seventh Amendment Acquisition Loan Chemicals, Plastics and Rubber Interest Rate 12.1% Cash + 1.0% PIK Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 9/30/24, Initial Acquisition Date 6/26/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 2,548,000    
Principal [6],[20],[22] 2,548,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans C.P. Converters, Inc. Seventh Amendment Acquisition Loan Chemicals, Plastics and Rubber Interest Rate 12.2% Cash + 1.0% PIK Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 9/30/24, Initial Acquisition Date 6/26/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 2,638,000    
Fair Value, Ending Balance [1],[2],[3],[21]     2,638,000
Principal [1],[2],[21]     2,612,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans C.P. Converters, Inc. Term Loan Chemicals, Plastics and Rubber Interest Rate 12.0% Cash + 1.0% PIK Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 9/30/24, Initial Acquisition Date 7/29/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 1,019,000    
Fair Value, Ending Balance [1],[2],[3],[21]     1,019,000
Principal [1],[2],[21]     1,009,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans C.P. Converters, Inc. Term Loan Chemicals, Plastics and Rubber Interest Rate 12.1% Cash + 1.0% PIK Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 9/30/24, Initial Acquisition Date 7/29/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 984,000    
Principal [6],[20],[22] 984,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans C.P. Converters, Inc. Term Loan Chemicals, Plastics and Rubber Interest Rate 12.3% Cash + 1.0% PIK Cash Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 9/30/24, Initial Acquisition Date 11/17/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 6,178,000    
Fair Value, Ending Balance [1],[2],[3],[21]     6,178,000
Principal [1],[2],[21]     6,117,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans C.P. Converters, Inc. Term Loan Chemicals, Plastics and Rubber Interest Rate 12.3% Cash + 1.0% PIK Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 9/30/24, Initial Acquisition Date 11/17/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 5,966,000    
Principal [6],[20],[22] 5,966,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans CB Midco, LLC Term Loan Consumer goods: Durable Interest Rate 11.2% Cash Reference Rate and Spread SOFR+5.75% Floor 1.00% Maturity 9/27/27, Initial Acquisition Date 10/8/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 3,525,000    
Fair Value, Ending Balance 3,576,000 [4],[6],[20],[22]   3,525,000 [1],[2],[3],[21]
Principal 3,792,000 [6],[20],[22]   3,802,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Cenexel Clinical Research, Inc. Term Loan Healthcare & Pharmaceuticals Interest Rate 11.2% Cash Reference Rate and Spread SOFR+5.75% Floor 1.00% Maturity 11/8/25, Initial Acquisition Date 6/15/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 5,773,000    
Fair Value, Ending Balance 5,752,000 [4],[6],[20],[22]   5,773,000 [1],[2],[3],[21]
Principal 5,773,000 [6],[20],[22]   5,773,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Centric Brands Inc. Term Loan Machinery (Non-Agrclt/Constr/Electr) Interest Rate 10.8% Cash + 2.0% PIK Reference Rate and Spread SOFR+5.50% Floor 1.00% Maturity 2/6/31, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 3,807,000    
Principal [6],[20],[22] 3,807,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Centric Brands Inc. Term Loan Machinery (Non-Agrclt/Constr/Electr) Interest Rate 10.8% Cash + 2.0% PIK Reference Rate and Spread SOFR+5.50% Floor 1.00% Maturity 2/6/31, Initial Acquisition Date 10/28/20 One      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 3,136,000    
Principal [6],[20],[22] 3,136,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Centric Brands Inc. Term Loan Machinery (Non-Agrclt/Constr/Electr) Interest Rate 10.8% Cash + 2.0% PIK Reference Rate and Spread SOFR+5.50% Floor 1.00% Maturity 8/6/29, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 3,689,000    
Principal [6],[20],[22] 3,689,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Centric Brands Inc. Term Loan Machinery (Non-Agrclt/Constr/Electr) Interest Rate 7.9% Cash + 7.0% PIK Reference Rate and Spread SOFR+2.50% Maturity 10/9/25, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 9,976,000    
Fair Value, Ending Balance [1],[2],[3],[21]     9,976,000
Principal [1],[2],[21]     10,487,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Colonnade Intermediate, LLC Delayed Draw Term Loan Services: Business Interest Rate 12.4% Cash Reference Rate and Spread SOFR+7.00% Floor 1.00% Maturity 4/27/24, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 424,000    
Principal [6],[20],[22] 447,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Colonnade Intermediate, LLC Delayed Draw Term Loan Services: Business Interest Rate 12.4% Cash Reference Rate and Spread SOFR+7.00% Floor 1.00% Maturity 4/27/24, Initial Acquisition Date 3/1/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20] 701,000    
Principal [6],[20] 739,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Colonnade Intermediate, LLC Delayed Draw Term Loan Services: Business Interest Rate 12.5% Cash Reference Rate and Spread SOFR+7.00% Floor 1.00% Maturity 2/27/24, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 445,000    
Fair Value, Ending Balance [1],[2],[3],[21]     445,000
Principal [1],[2],[21]     448,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Colonnade Intermediate, LLC Delayed Draw Term Loan Services: Business Interest Rate 12.5% Cash Reference Rate and Spread SOFR+7.00% Floor 1.00% Maturity 2/27/24, Initial Acquisition Date 3/1/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 735,000    
Fair Value, Ending Balance [1],[2],[3]     735,000
Principal [1],[2]     740,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Colonnade Intermediate, LLC First Lien Term Loan Services: Business Interest Rate 12.4% Cash Reference Rate and Spread SOFR+7.00% Floor 1.00% Maturity 4/27/24, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 4,637,000    
Principal [6],[20],[22] 4,886,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Colonnade Intermediate, LLC First Lien Term Loan Services: Business Interest Rate 12.5% Cash Reference Rate and Spread SOFR+7.00% Floor 1.00% Maturity 2/27/24, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 4,866,000    
Fair Value, Ending Balance [1],[2],[3],[21]     4,866,000
Principal [1],[2],[21]     4,899,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Colonnade Intermediate, LLC Revolver Services: Business Interest Rate 12.4% Cash Reference Rate and Spread SOFR+7.00% Floor 1.00% Maturity 4/27/24, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 546,000    
Principal [6],[20],[22] 575,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Colonnade Intermediate, LLC Revolver Services: Business Interest Rate 12.6% Cash Reference Rate and Spread PRIME+7.00% Floor 1.00% Maturity 2/27/24, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21],[28] 41,000    
Fair Value, Ending Balance [1],[2],[3],[21],[28]     41,000
Principal [1],[2],[21],[28]     41,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Colonnade Intermediate, LLC Revolver Services: Business Interest Rate 12.6% Cash Reference Rate and Spread SOFR+7.00% Floor 1.00% Maturity 2/27/24, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21],[28] 571,000    
Fair Value, Ending Balance [1],[2],[3],[21],[28]     571,000
Principal [1],[2],[21],[28]     576,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Colonnade Intermediate, LLC Revolver Services: Business Interest Rate 14.5% Cash Reference Rate and Spread PRIME+7.00% Floor 1.00% Maturity 4/27/24, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 104,000    
Principal [6],[20],[22] 110,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Colonnade Intermediate, LLC Term Loan Services: Business Interest Rate 12.4% Cash Reference Rate and Spread SOFR+7.00% Floor 1.00% Maturity 4/27/24, Initial Acquisition Date 3/1/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20] 660,000    
Principal [6],[20] 696,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Colonnade Intermediate, LLC Term Loan Services: Business Interest Rate 12.4% Cash Reference Rate and Spread SOFR+7.00% Floor 1.00% Maturity 4/27/24, Initial Acquisition Date 3/2/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 379,000    
Principal [6],[20],[22] 399,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Colonnade Intermediate, LLC Term Loan Services: Business Interest Rate 12.5% Cash Reference Rate and Spread SOFR+7.00% Floor 1.00% Maturity 2/27/24, Initial Acquisition Date 3/1/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 693,000    
Fair Value, Ending Balance [1],[2],[3]     693,000
Principal [1],[2]     698,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Colonnade Intermediate, LLC Term Loan Services: Business Interest Rate 12.5% Cash Reference Rate and Spread SOFR+7.00% Floor 1.00% Maturity 2/27/24, Initial Acquisition Date 3/2/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 398,000    
Fair Value, Ending Balance [1],[2],[3],[21]     398,000
Principal [1],[2],[21]     400,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Critical Nurse Staffing, LLC Delayed Draw Term Loan Healthcare & Pharmaceuticals Interest Rate 11.9% Cash Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 10/30/26, Initial Acquisition Date 11/1/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 615,000    
Fair Value, Ending Balance [1],[2],[3],[21]     615,000
Principal [1],[2],[21]     625,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Critical Nurse Staffing, LLC Delayed Draw Term Loan Healthcare & Pharmaceuticals Interest Rate 12.0% Cash Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 10/30/26, Initial Acquisition Date 11/1/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 615,000    
Principal [6],[20],[22] 623,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Critical Nurse Staffing, LLC Revolver Healthcare & Pharmaceuticals Interest Rate 0.5% Cash Floor 1.00% Maturity 10/30/26, Initial Acquisition Date 11/1/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[28] (30,000)    
Fair Value, Ending Balance (26,000) [4],[6],[20],[27]   (30,000) [1],[2],[3],[28]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Critical Nurse Staffing, LLC Term Loan Healthcare & Pharmaceuticals Interest Rate 11.9% Cash Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 10/30/26, Initial Acquisition Date 11/1/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 7,959,000    
Principal [6],[20],[22] 8,062,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Critical Nurse Staffing, LLC Term Loan Healthcare & Pharmaceuticals Interest Rate 11.9% Cash Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 11/1/26, Initial Acquisition Date 11/1/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22],[27] 3,929,000    
Principal [6],[20],[22] 3,980,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Critical Nurse Staffing, LLC Term Loan Healthcare & Pharmaceuticals Interest Rate 12.0% Cash Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 10/30/26, Initial Acquisition Date 11/1/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 7,961,000    
Fair Value, Ending Balance [1],[2],[3],[21]     7,961,000
Principal [1],[2],[21]     8,082,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Critical Nurse Staffing, LLC Term Loan Healthcare & Pharmaceuticals Interest Rate 12.0% Cash Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 11/1/26, Initial Acquisition Date 11/1/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 3,930,000    
Fair Value, Ending Balance [1],[2],[3],[21]     3,930,000
Principal [1],[2],[21]     3,990,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Datalink, LLC First Lien Term Loan Healthcare & Pharmaceuticals Interest Rate 12.2% Cash Reference Rate and Spread SOFR+6.75% Floor 1.00% Maturity 11/23/26, Initial Acquisition Date 12/8/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 2,615,000    
Principal [6],[20],[22] 2,696,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Datalink, LLC First Lien Term Loan Healthcare & Pharmaceuticals Interest Rate 12.2% Cash Reference Rate and Spread SOFR+6.75% Floor 1.25% Maturity 11/23/26, Initial Acquisition Date 12/8/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 2,715,000    
Fair Value, Ending Balance [1],[2],[3],[21]     2,715,000
Principal [1],[2],[21]     2,715,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Dentive, LLC Delayed Draw Term Loan - First Lien Healthcare & Pharmaceuticals Interest Rate 12.3% Cash Reference Rate and Spread SOFR+7.00% Floor 0.75% Maturity 12/26/28, Initial Acquisition Date 12/23/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22],[27] 488,000    
Principal [6],[20],[22],[27] 501,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Dentive, LLC Delayed Draw Term Loan - First Lien Healthcare & Pharmaceuticals Interest Rate 12.4% Cash Reference Rate and Spread SOFR+7.00% Floor 0.75% Maturity 12/26/28, Initial Acquisition Date 12/23/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21],[28] 304,000    
Fair Value, Ending Balance [1],[2],[3],[21],[28]     304,000
Principal [1],[2],[21],[28]     317,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Dentive, LLC First Lien Term Loan Healthcare & Pharmaceuticals Interest Rate 12.3% Cash Reference Rate and Spread SOFR+7.00% Floor 0.75% Maturity 12/26/28, Initial Acquisition Date 12/23/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 1,477,000    
Principal [6],[20],[22] 1,504,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Dentive, LLC First Lien Term Loan Healthcare & Pharmaceuticals Interest Rate 12.4% Cash Reference Rate and Spread SOFR+7.00% Floor 0.75% Maturity 12/26/28, Initial Acquisition Date 12/23/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 1,482,000    
Fair Value, Ending Balance [1],[2],[3],[21]     1,482,000
Principal [1],[2],[21]     1,507,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Dentive, LLC Revolver Healthcare & Pharmaceuticals Interest Rate 12.3% Cash Reference Rate and Spread SOFR+7.00% Floor 0.75% Maturity 12/23/28, Initial Acquisition Date 12/23/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[27] (4,000)    
Principal [6],[20],[27] 0    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Dentive, LLC Revolver Healthcare & Pharmaceuticals Interest Rate 12.4% Cash Reference Rate and Spread SOFR+7.00% Floor 0.75% Maturity 12/23/28, Initial Acquisition Date 12/23/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[28] 44,000    
Fair Value, Ending Balance [1],[2],[3],[28]     44,000
Principal [1],[2],[28]     48,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Dodge Data & Analytics LLC Term Loan Construction & Building Interest Rate 10.3% Cash Reference Rate and Spread SOFR+4.75% Floor 0.50% Maturity 2/10/29, Initial Acquisition Date 2/10/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 1,165,000    
Fair Value, Ending Balance [2],[3],[21]     1,165,000
Principal [2],[21]     1,478,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Dodge Data & Analytics LLC Term Loan Construction & Building Interest Rate 9.8% Cash Reference Rate and Spread SOFR+4.75% Floor 0.50% Maturity 2/10/29, Initial Acquisition Date 2/10/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 1,220,000    
Principal [6],[20],[22] 1,474,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans ELO Touch Solutions, Inc. First Lien Term Loan High Tech Industries Interest Rate 11.9% Cash Reference Rate and Spread SOFR+6.50% Floor Maturity 12/14/25, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 2,046,000    
Principal [6],[20],[22] 2,049,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans ELO Touch Solutions, Inc. First Lien Term Loan High Tech Industries Interest Rate 12.0% Cash Reference Rate and Spread SOFR+6.50% Maturity 12/14/25, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 1,983,000    
Fair Value, Ending Balance [2],[3],[21]     1,983,000
Principal [2],[21]     2,049,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Florida Food Products, LLC First Lien Term Loan Beverage, Food and Tobacco Interest Rate 10.3% Cash Reference Rate and Spread SOFR+5.00% Floor 0.75% Maturity 10/18/28, Initial Acquisition Date 6/9/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 1,754,000    
Principal [6],[20],[22] 1,975,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Florida Food Products, LLC First Lien Term Loan Beverage, Food and Tobacco Interest Rate 10.4% Cash Reference Rate and Spread SOFR+5.00% Floor 0.75% Maturity 10/18/28, Initial Acquisition Date 6/9/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 1,737,000    
Fair Value, Ending Balance [2],[3],[21]     1,737,000
Principal [2],[21]     1,980,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Florida Food Products, LLC Term Loan Beverage, Food and Tobacco Interest Rate 10.4% Cash Reference Rate and Spread SOFR+5.00% Floor 0.75% Maturity 10/18/28, Initial Acquisition Date 3/22/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 4,353,000    
Principal [6],[20],[22] 4,900,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Florida Food Products, LLC Term Loan Beverage, Food and Tobacco Interest Rate 10.5% Cash Reference Rate and Spread SOFR+5.00% Floor 0.75% Maturity 10/18/28, Initial Acquisition Date 3/22/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 4,311,000    
Fair Value, Ending Balance [2],[3],[21]     4,311,000
Principal [2],[21]     4,913,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Fortis Payment Systems, LLC Delayed Draw Term Loan Diversified Financial Services Interest Rate 11.2% Cash Reference Rate and Spread SOFR+5.75% Floor 1.00% Maturity 2/13/26, Initial Acquisition Date 2/13/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[27] 123,000    
Principal [6],[20],[27] 131,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Fortis Payment Systems, LLC Term Loan Diversified Financial Services Interest Rate 11.2% Cash Reference Rate and Spread SOFR+5.75% Floor 1.00% Maturity 2/13/26, Initial Acquisition Date 2/13/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 2,573,000    
Principal [6],[20],[22] 2,625,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Franchise Group, Inc. First Out Term Loan Retail Interest Rate 10.4% Cash Reference Rate and Spread SOFR+4.75% Floor 0.75% Maturity 2/25/26, Initial Acquisition Date 3/18/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [3],[21] 2,350,000    
Fair Value, Ending Balance [3],[21]     2,350,000
Principal [21]     2,900,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Franchise Group, Inc. Term Loan Retail Interest Rate 10.4% Cash Reference Rate and Spread SOFR+4.75% Floor 0.75% Maturity 3/10/26, Initial Acquisition Date 3/18/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[22] 2,617,000    
Principal [22] 2,900,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Global Integrated Flooring Systems Inc. First Lien Term Loan Consumer Goods: Durable Interest Rate 13.8% Cash + 1.0% PIK Reference Rate and Spread SOFR+8.36% Maturity 5/15/24, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 4,127,000    
Fair Value, Ending Balance [1],[2],[3]     4,127,000
Principal [1],[2]     6,852,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Global Integrated Flooring Systems Inc. First Lien Term Loan Consumer goods: Durable Interest Rate 13.7% Cash + 1.0% PIK Reference Rate and Spread SOFR+8.36% Maturity 5/15/24, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20] 3,851,000    
Principal [6],[20] 6,742,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Global Integrated Flooring Systems Inc. Revolver Consumer Goods: Durable Interest Rate 13.7% Cash Reference Rate and Spread SOFR+8.36% Maturity 5/15/24, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 31,000    
Fair Value, Ending Balance [1],[2],[3]     31,000
Principal [1],[2]     51,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Global Integrated Flooring Systems Inc. Revolver Consumer goods: Durable Interest Rate 13.7% Cash Reference Rate and Spread SOFR+8.36% Maturity 5/15/24, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20] 29,000    
Principal [6],[20] 51,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans H-CA II, LLC Term Loan Banking, Finance, Insurance & Real Estate Interest Rate 16.0% Cash Maturity 4/1/24, Initial Acquisition Date 2/16/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 1,854,000    
Fair Value, Ending Balance 1,800,000 [4],[6],[20]   1,854,000 [1],[2],[3]
Principal 1,808,000 [6],[20]   1,854,000 [1],[2]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans H.W. LOCHNER, INC. Revolver Services: Business Interest Rate 11.7% Cash Reference Rate and Spread SOFR+6.25% Floor 1.00% Maturity 7/2/27, Initial Acquisition Date 7/2/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[27] 5,679,000    
Principal [6],[20],[27] 5,858,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans H.W. LOCHNER, INC. Term Loan Services: Business Interest Rate 11.7% Cash Reference Rate and Spread SOFR+6.25% Maturity 7/2/27, Initial Acquisition Date 7/2/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 14,299,000    
Principal [6],[20],[22] 4,625,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans H.W. Lochner, Inc. Revolver Services: Business Interest Rate 11.8% Cash Reference Rate and Spread SOFR+6.25% Floor 1.00% Maturity 7/2/27, Initial Acquisition Date 7/2/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[28] 3,578,000    
Fair Value, Ending Balance [1],[2],[3],[28]     3,578,000
Principal [1],[2],[28]     3,858,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans H.W. Lochner, Inc. Term Loan Services: Business Interest Rate 11.8% Cash Reference Rate and Spread SOFR+6.25% Floor 1.00% Maturity 7/2/27, Initial Acquisition Date 7/2/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 14,149,000    
Fair Value, Ending Balance [1],[2],[3],[21]     14,149,000
Principal [1],[2],[21]     14,663,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans HDC/HW Intermediate Holdings, LLC First Lien Term Loan A High Tech Industries Interest Rate 12.8% Cash + 2.0% PIK Reference Rate and Spread SOFR+7.50% Floor 1.00% Maturity 12/21/23, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21],[23] 4,252,000    
Fair Value, Ending Balance [1],[2],[3],[21],[23]     4,252,000
Principal [1],[2],[21],[23]     7,525,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans HDC/HW Intermediate Holdings, LLC First Lien Term Loan High Tech Industries Maturity 6/21/26, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Principal [6],[20],[22],[24] 3,827,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans HDC/HW Intermediate Holdings, LLC Revolver High Tech Industries Interest Rate 12.8% Cash + 2.0% PIK Reference Rate and Spread SOFR+7.50% Floor 1.00% Maturity 12/21/23, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21],[23] 437,000    
Fair Value, Ending Balance [1],[2],[3],[21],[23]     437,000
Principal [1],[2],[21],[23]     773,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans HDC/HW Intermediate Holdings, LLC, Term Loan, High Tech Industries, Interest Rate 6% Cash + 2.5% PIK Reference Rate and Spread SOFR+1.00% Floor 5.25% Maturity 6/21/26 Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 5,290,000    
Principal [6],[20],[22] 5,525,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Help Systems Holdings, Inc First Lien Term Loan, High Tech Industries, Interest Rate 9.4% Cash Reference Rate and Spread SOFR+4.00% Floor 0.75% Maturity 11/19/26, Initial Acquisition Date 11/17/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[20],[22] 1,909,000    
Principal [20],[22] 1,969,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Help Systems Holdings, LLC First Lien Term Loan High Tech Industries Interest Rate 9.5% Cash Reference Rate and Spread SOFR+4.00% Floor 0.75% Maturity 11/19/26, Initial Acquisition Date 11/17/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 1,876,000    
Fair Value, Ending Balance [2],[3],[21]     1,876,000
Principal [2],[21]     1,974,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Hollander Intermediate LLC First Lien Term Loan Consumer Goods: Durable Interest Rate 14.2% Cash Reference Rate and Spread SOFR+8.75% Floor 2.00% Maturity 9/19/26, Initial Acquisition Date 9/19/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 5,260,000    
Fair Value, Ending Balance [1],[2],[3],[21]     5,260,000
Principal [1],[2],[21]     5,508,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Hollander Intermediate LLC First Lien Term Loan, Consumer goods: Durable, Interest Rate 14.2% Cash Reference Rate and Spread SOFR+8.75% Floor 2.00% Maturity 09/19/26, Initial Acquisition Date 9/19/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 5,215,000    
Principal [6],[20],[22] 5,541,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans IDC Infusion Services Delayed Draw Term Loan Healthcare & Pharmaceuticals Interest Rate 1.0% Cash Floor 1.00% Maturity 7/7/28, Initial Acquisition Date 7/20/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[28] (17,000)    
Fair Value, Ending Balance [1],[2],[3],[28]     (17,000)
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans IDC Infusion Services Delayed Draw Term Loan Healthcare & Pharmaceuticals Interest Rate 12.0% Cash Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 7/7/28, Initial Acquisition Date 7/20/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[27] 245,000    
Principal [6],[20],[27] 260,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans IDC Infusion Services Term Loan Healthcare & Pharmaceuticals Interest Rate 11.9% Cash Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 7/7/28, Initial Acquisition Date 7/20/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 2,880,000    
Principal [6],[20],[22] 2,920,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans IDC Infusion Services Term Loan Healthcare & Pharmaceuticals Interest Rate 12.0% Cash Reference Rate and Spread SOFR+6.50% Floor 0.50% Maturity 7/7/28, Initial Acquisition Date 7/20/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 2,880,000    
Fair Value, Ending Balance [1],[2],[3],[21]     2,880,000
Principal [1],[2],[21]     2,928,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Intermedia Holdings, Inc. First Lien Term Loan B High Tech Industries Interest Rate 11.4% Cash Reference Rate and Spread SOFR+6.00% Floor 1.00% Maturity 7/21/25, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[20],[22] 2,580,000    
Principal [20],[22] 2,606,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Intermedia Holdings, Inc. First Lien Term Loan B High Tech Industries Interest Rate 11.5% Cash Reference Rate and Spread SOFR+6.00% Floor 1.00% Maturity 7/21/25, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 2,531,000    
Fair Value, Ending Balance [2],[3],[21]     2,531,000
Principal [2],[21]     2,613,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Ivanti Software, Inc. First Lien Term Loan High Tech Industries Interest Rate 9.8% Cash Reference Rate and Spread SOFR+4.25% Floor 0.75% Maturity 12/1/27, Initial Acquisition Date 10/12/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[20],[22] 925,000    
Principal [20],[22] 985,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Ivanti Software, Inc. First Lien Term Loan High Tech Industries Interest Rate 9.9% Cash Reference Rate and Spread SOFR+4.25% Floor 0.75% Maturity 12/1/27, Initial Acquisition Date 10/12/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 940,000    
Fair Value, Ending Balance [2],[3],[21]     940,000
Principal [2],[21]     987,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans JO ET Holdings Limited Term Loan Telecommunications Interest Rate 11.3% Cash + 7.0% PIK Reference Rate and Spread SOFR+6.00% Floor 1.00% Maturity 12/15/26, Initial Acquisition Date 12/15/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[7] 2,295,000    
Principal [6],[7] 2,295,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans JO ET Holdings Limited Term Loan Telecommunications Interest Rate 11.4% Cash + 7.0% PIK Reference Rate and Spread SOFR+6.00% Floor 1.00% Maturity 12/15/26, Initial Acquisition Date 12/15/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[3],[5] 2,254,000    
Fair Value, Ending Balance [1],[3],[5]     2,254,000
Principal [1],[5]     2,260,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Keg Logistics LLC Revolver Services: Business Interest Rate 11.5% Cash Reference Rate and Spread SOFR+6.00% Floor 1.00% Maturity 11/23/27, Initial Acquisition Date 11/23/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 842,000    
Fair Value, Ending Balance 858,000 [4],[6],[20]   842,000 [1],[2],[3]
Principal 872,000 [6],[20]   872,000 [1],[2]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Keg Logistics LLC Term Loan Services: Business Interest Rate 11.5% Cash Reference Rate and Spread SOFR+6.00% Floor 1.00% Maturity 11/23/27, Initial Acquisition Date 11/23/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 11,579,000    
Fair Value, Ending Balance 11,770,000 [4],[6],[20],[22]   11,579,000 [1],[2],[3],[21]
Principal 11,969,000 [6],[20],[22]   11,999,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Lifescan Global Corporation First Lien Term Loan A Healthcare & Pharmaceuticals Interest Rate 12.0% Cash Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 12/31/26, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 1,792,000    
Fair Value, Ending Balance 1,454,000 [4],[20],[22]   1,792,000 [2],[3],[21]
Principal 2,327,000 [20],[22]   2,381,000 [2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Lucky Bucks, LLC Term Loan Hotel, Gaming & Leisure Interest Rate 13.0% Cash Reference Rate and Spread SOFR+7.65% Floor 1.00% Maturity 10/2/28, Initial Acquisition Date 10/2/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 473,000    
Fair Value, Ending Balance 472,000 [4],[6],[20],[22]   473,000 [1],[2],[3],[21]
Principal 468,000 [6],[20],[22]   469,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Lucky Bucks, LLC Term Loan Hotel, Gaming & Leisure Interest Rate 13.0% Cash Reference Rate and Spread SOFR+7.65% Floor 1.00% Maturity 10/2/29, Initial Acquisition Date 10/2/2023      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 853,000    
Fair Value, Ending Balance [1],[2],[3],[21]     853,000
Principal [1],[2],[21]     892,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Lucky Bucks, LLC Term Loan Hotel, Gaming & Leisure Interest Rate 13.0% Cash Reference Rate and Spread SOFR+7.65% Floor 1.00% Maturity 10/2/29, Initial Acquisition Date 10/2/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 853,000    
Principal [6],[20],[22] 890,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Luminii LLC First Lien Term Loan B Construction & Building Interest Rate 12.7% Cash Reference Rate and Spread SOFR+7.25% Floor 1.00% Maturity 4/11/25, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 5,933,000    
Fair Value, Ending Balance [1],[2],[3],[21]     5,933,000
Principal [1],[2],[21]     5,933,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Luminii LLC First Lien Term Loan B Construction & Building Interest Rate 12.7% Cash Reference Rate and Spread SOFR+7.35% Floor 1.00% Maturity 4/11/25, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 5,918,000    
Principal [6],[20],[22] 5,918,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Luminii LLC Revolver Construction & Building Interest Rate 12.7% Cash Reference Rate and Spread SOFR+7.35% Floor 1.00% Maturity 4/11/25, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21],[28] 343,000    
Fair Value, Ending Balance 343,000 [4],[6],[20],[22],[27]   343,000 [1],[2],[3],[21],[28]
Principal 343,000 [6],[20],[22],[27]   343,000 [1],[2],[21],[28]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans MAG DS Corp. First Lien Term Loan Aerospace and Defense Interest Rate 10.9% Cash Reference Rate and Spread SOFR+5.50% Floor 1.00% Maturity 4/1/27, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 3,526,000    
Principal [6],[20],[22] 3,654,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans MAG DS Corp. First Lien Term Loan Aerospace and Defense Interest Rate 11.0% Cash Reference Rate and Spread SOFR+5.50% Floor 1.00% Maturity 4/1/27, Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 3,520,000    
Fair Value, Ending Balance [2],[3],[21]     3,520,000
Principal [2],[21]     3,664,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans MSM Acquisitions, Inc. Delayed Draw Term Loan Services: Business Interest Rate 11.3% Cash Reference Rate and Spread SOFR+6.00% Floor 1.00% Maturity 12/9/26, Initial Acquisition Date 1/1/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 2,776,000    
Principal [6],[20],[22] 2,922,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans MSM Acquisitions, Inc. Delayed Draw Term Loan Services: Business Interest Rate 11.5% Cash Reference Rate and Spread SOFR+6.00% Floor 1.00% Maturity 12/9/26, Initial Acquisition Date 1/1/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 2,774,000    
Fair Value, Ending Balance [1],[2],[3],[21]     2,774,000
Principal [1],[2],[21]     2,893,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans MSM Acquisitions, Inc. First Lien Term Loan Services: Business Interest Rate 11.3% Cash Reference Rate and Spread SOFR+6.00% Floor 1.00% Maturity 12/9/26, Initial Acquisition Date 12/31/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 6,655,000    
Principal [6],[20],[22] 7,005,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans MSM Acquisitions, Inc. First Lien Term Loan Services: Business Interest Rate 11.5% Cash Reference Rate and Spread SOFR+6.00% Floor 1.00% Maturity 12/9/26, Initial Acquisition Date 12/31/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 6,649,000    
Fair Value, Ending Balance [1],[2],[3],[21]     6,649,000
Principal [1],[2],[21]     6,935,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Money Transfer Acquisition, Inc. First Lien Term Loan Finance Interest Rate 13.7% Cash Reference Rate and Spread SOFR+8.25% Floor 1.00% Maturity 12/14/27, Initial Acquisition Date 12/14/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 9,506,000    
Fair Value, Ending Balance 9,531,000 [4],[6],[20],[22]   9,506,000 [1],[2],[3],[21]
Principal 9,750,000 [6],[20],[22]   9,750,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Morae Global Corporation Revolver IT Consulting & Other Services Interest Rate 0.5% Cash Floor 2.00% Maturity 10/26/26, Initial Acquisition Date 10/26/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[28] (10,000)    
Fair Value, Ending Balance (9,000) [4],[6],[20],[27]   (10,000) [1],[2],[3],[28]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Morae Global Corporation Term Loan IT Consulting & Other Services Interest Rate 13.5% Cash Reference Rate and Spread SOFR+8.00% Floor 2.00% Maturity 10/26/26, Initial Acquisition Date 10/26/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 2,169,000    
Fair Value, Ending Balance 2,167,000 [4],[6],[20],[22]   2,169,000 [1],[2],[3],[21]
Principal 2,263,000 [6],[20],[22]   2,277,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Neptune BidCo US Inc. First Lien Term Loan Media: Broadcasting & Subscription Interest Rate 10.4% Cash Reference Rate and Spread SOFR+5.00% Floor 0.50% Maturity 4/11/29, Initial Acquisition Date 11/22/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[20],[22] 2,293,000    
Principal [20],[22] 2,481,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Neptune BidCo US Inc. First Lien Term Loan Media: Broadcasting & Subscription Interest Rate 10.5% Cash Reference Rate and Spread SOFR+5.00% Floor 0.50% Maturity 4/11/29, Initial Acquisition Date 11/22/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 2,279,000    
Fair Value, Ending Balance [2],[3],[21]     2,279,000
Principal [2],[21]     2,488,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Net Asset Value at Fair Value      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [3] 340,159,000    
Fair Value, Ending Balance 349,844,000 [4]   340,159,000 [3]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Netwrix Corporation Delayed Draw Term Loan - First Lien High Tech Industries Interest Rate 1.0% Cash Floor 0.75% Maturity 6/9/29, Initial Acquisition Date 6/9/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21],[28] (3,000)    
Fair Value, Ending Balance [1],[2],[3],[21],[28]     (3,000)
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Netwrix Corporation First Lien Term Loan High Tech Industries Interest Rate 10.4% Cash Reference Rate and Spread SOFR+5.00% Floor 0.75% Maturity 6/9/29, Initial Acquisition Date 6/9/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 4,223,000    
Principal [6],[20],[22] 4,281,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Netwrix Corporation First Lien Term Loan High Tech Industries Interest Rate 10.4% Cash Reference Rate and Spread SOFR+5.00% Maturity 6/9/29, Initial Acquisition Date 6/9/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 3,367,000    
Fair Value, Ending Balance [1],[2],[3],[21]     3,367,000
Principal [1],[2],[21]     3,379,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Netwrix Corporation Revolver High Tech Industries Interest Rate 0.3% Cash Floor 0.75% Maturity 6/9/29, Initial Acquisition Date 6/9/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[28] (4,000)    
Fair Value, Ending Balance [1],[2],[3],[28]     (4,000)
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Netwrix Corporation Revolver High Tech Industries Interest Rate 0.3% Floor 0.75% Maturity 6/9/29, Initial Acquisition Date 6/9/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[27] (15,000)    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Northeast Metal Works LLC Term Loan -Metals & Mining Interest Rate 8.0% Cash Maturity 4/5/28, Initial Acquisition Date 1/27/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[29] 3,560,000    
Fair Value, Ending Balance [1],[2],[3],[29]     3,560,000
Principal [1],[2],[29]     4,500,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Northeast Metal Works LLC Term Loan Metals & Mining Interest Rate 8.0% Cash Maturity 1/1/25, Initial Acquisition Date 2/21/24      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20] 500,000    
Principal [6],[20] 500,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Northeast Metal Works LLC Term Loan Metals & Mining Interest Rate 8.0% Cash Maturity 4/5/28, Initial Acquisition Date 1/27/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[30] 3,369,000    
Principal [6],[20],[30] 4,500,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans One Stop Mailing LLC First Lien Term Loan Transportation: Consumer Interest Rate 11.7% Cash Reference Rate and Spread SOFR+6.25% Floor 1.00% Maturity 4/29/27, Initial Acquisition Date 5/7/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 7,385,000    
Principal [6],[20],[22] 7,530,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans One Stop Mailing LLC First Lien Term LoanTransportation: Consumer Interest Rate 11.7% Cash Reference Rate and Spread SOFR+6.25% Floor 1.00% Maturity 4/9/27, Initial Acquisition Date 5/7/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 7,409,000    
Fair Value, Ending Balance [1],[2],[3],[21]     7,409,000
Principal [1],[2],[21]     7,550,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans PVHC Holding Corp Term Loan Containers, Packaging and Glass Interest Rate 11.0% Cash + 0.8% PIK Reference Rate and Spread SOFR+5.50% Floor 2.50% Maturity 2/17/27, Initial Acquisition Date 12/23/19      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 2,673,000    
Principal [6],[20],[22] 2,735,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans PVHC Holding Corp Term Loan Containers, Packaging and Glass Interest Rate 11.0% Cash + 0.8% PIK Reference Rate and Spread SOFR+5.55% Floor 2.50% Maturity 2/17/27, Initial Acquisition Date 12/23/19      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 2,665,000    
Fair Value, Ending Balance [1],[2],[3],[21]     2,665,000
Principal [1],[2],[21]     2,736,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans PhyNet Dermatology LLC Delayed Draw Term Loan Healthcare & Pharmaceuticals Interest Rate 1.0% Cash Maturity 10/20/29, Initial Acquisition Date 5/10/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[27] (8,000)    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans PhyNet Dermatology LLC Term Loan Healthcare & Pharmaceuticals Interest Rate 1.0% Cash Floor 1.00% Maturity 10/20/29, Initial Acquisition Date 5/10/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[28] (7,000)    
Fair Value, Ending Balance [1],[2],[3],[28]     (7,000)
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans PhyNet Dermatology LLC Term Loan Healthcare & Pharmaceuticals Interest Rate 12.0% Cash Reference Rate and Spread SOFR+6.50% Floor 1.00% Maturity 10/20/29, Initial Acquisition Date 5/10/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 1,294,000    
Fair Value, Ending Balance 1,289,000 [4],[6],[20],[22]   1,294,000 [1],[2],[3],[21]
Principal 1,304,000 [6],[20],[22]   1,307,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Pomeroy Technologies, LLC Senior Term Loan A High Tech Industries Interest Rate 5.0% PIK Maturity 4/4/26, Initial Acquisition Date 5/29/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 1,007,000    
Fair Value, Ending Balance 652,000 [4],[6],[20]   1,007,000 [1],[2],[3]
Principal 1,728,000 [6],[20]   1,706,000 [1],[2]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Pomeroy Technologies, LLC Senior Term Loan B High Tech Industries Interest Rate 7.0% PIK Maturity 4/4/26, Initial Acquisition Date 5/29/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[23] 193,000    
Fair Value, Ending Balance [1],[2],[3],[23]     193,000
Principal 1,621,000 [6],[20],[24]   1,593,000 [1],[2],[23]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Pomeroy Technologies, LLC Super Senior Term Loan B High Tech Industries Interest Rate 9.0% PIK Maturity 4/4/26, Initial Acquisition Date 5/29/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 1,170,000    
Fair Value, Ending Balance 1,206,000 [4],[6],[20]   1,170,000 [1],[2],[3]
Principal 1,289,000 [6],[20]   1,261,000 [1],[2]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Pomeroy Technologies, LLC Term Loan High Tech Industries Interest Rate 10.0% PIK Maturity 4/4/26, Initial Acquisition Date 4/4/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 36,000    
Fair Value, Ending Balance 23,000 [4],[6],[20]   36,000 [1],[2],[3]
Principal 62,000 [6],[20]   60,000 [1],[2]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Pomeroy Technologies, LLC Term Loan High Tech Industries Interest Rate 10.0% PIK Maturity 4/4/26, Initial Acquisition Date 5/3/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 398,000    
Fair Value, Ending Balance 411,000 [4],[6],[20]   398,000 [1],[2],[3]
Principal 433,000 [6],[20]   422,000 [1],[2]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Premier Imaging, LLC Delayed Draw Term Loan Healthcare & Pharmaceuticals Interest Rate 11.6% Cash Reference Rate and Spread SOFR+6.00% Floor 1.00% Maturity 1/2/25, Initial Acquisition Date 12/30/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 527,000    
Fair Value, Ending Balance 531,000 [4],[6],[20],[22]   527,000 [1],[2],[3],[21]
Principal 564,000 [6],[20],[22]   548,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Premier Imaging, LLC Term Loan Healthcare & Pharmaceuticals Interest Rate 11.6% Cash Reference Rate and Spread SOFR+6.00% Floor 1.00% Maturity 1/2/25, Initial Acquisition Date 12/30/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 1,944,000    
Fair Value, Ending Balance 1,954,000 [4],[6],[20],[22]   1,944,000 [1],[2],[3],[21]
Principal 2,081,000 [6],[20],[22]   2,022,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Priority Holdings, LLC First Lien Term Loan High Tech Industries Interest Rate 11.2% Cash Reference Rate and Spread SOFR+5.75% Floor 1.00% Maturity 4/22/27, Initial Acquisition Date 4/21/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 5,591,000    
Fair Value, Ending Balance 5,592,000 [4],[6],[20],[22]   5,591,000 [1],[2],[3],[21]
Principal 5,597,000 [6],[20],[22]   5,612,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Project Castle, Inc. First Lien Term Loan Transportation: Cargo Interest Rate 10.8% Cash Reference Rate and Spread SOFR+5.50% Floor 0.50% Maturity 6/8/29, Initial Acquisition Date 6/9/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[20],[22] 6,516,000    
Principal [20],[22] 7,154,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Project Castle, Inc. First Lien Term Loan Transportation: Cargo Interest Rate 10.9% Cash Reference Rate and Spread SOFR+5.50% Floor 0.50% Maturity 6/8/29, Initial Acquisition Date 6/9/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 7,018,000    
Fair Value, Ending Balance [1],[2],[3],[21]     7,018,000
Principal [1],[2],[21]     7,900,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Project Leopard Holdings, Inc. Term Loan High Tech Industries Interest Rate 10.7% Cash Reference Rate and Spread SOFR+5.25% Floor 0.50% Maturity 7/20/29, Initial Acquisition Date 6/15/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 7,201,000    
Fair Value, Ending Balance 7,329,000 [4],[20],[22]   7,201,000 [2],[3],[21]
Principal 7,900,000 [20],[22]   7,920,000 [2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Qualtek LLC Term Loan High Tech Industries Interest Rate 6.2% Cash + 9.0% PIK Reference Rate and Spread SOFR+1.00% Floor 1.00% Maturity 7/14/25, Initial Acquisition Date 7/14/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[20],[22] 4,041,000    
Principal [20],[22] 4,473,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Qualtek LLC Term Loan High Tech Industries Interest Rate 6.4% Cash + 9.0% PIK Reference Rate and Spread SOFR+1.00% Floor 1.00% Maturity 7/14/25, Initial Acquisition Date 7/14/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3] 4,209,000    
Fair Value, Ending Balance [2],[3]     4,209,000
Principal [2]     4,373,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Radiology Partners, Inc Term B Loan (First Lien) Healthcare & Pharmaceuticals Interest Rate 10.2% Cash Reference Rate and Spread SOFR+4.25% Maturity 7/9/25, Initial Acquisition Date 1/26/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 5,654,000    
Fair Value, Ending Balance [2],[3],[21]     5,654,000
Principal [2],[21]     6,966,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Radiology Partners, Inc Term Loan Healthcare & Pharmaceuticals Interest Rate 10.6% Cash Reference Rate and Spread SOFR+5.00% Floor 1.00% Maturity 1/31/29, Initial Acquisition Date 1/26/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[20],[22] 6,033,000    
Principal [20],[22] 6,229,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Radius Aerospace, Inc. Initial Term Loan Aerospace and Defense Interest Rate 11.2% Cash Reference Rate and Spread SOFR+5.75% Floor 1.00% Maturity 3/29/25, Initial Acquisition Date 12/23/19      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 6,067,000    
Principal [6],[20],[22] 6,114,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Radius Aerospace, Inc. Initial Term Loan Aerospace and Defense Interest Rate 11.3% Cash Reference Rate and Spread SOFR+5.75% Floor 1.00% Maturity 3/29/25, Initial Acquisition Date 12/23/19      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 6,064,000    
Fair Value, Ending Balance [1],[2],[3],[21]     6,064,000
Principal [1],[2],[21]     6,131,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Reception Purchaser, LLC First Lien Term Loan Transportation: Cargo Interest Rate 11.5% Cash Reference Rate and Spread SOFR+6.00% Floor 0.75% Maturity 3/24/28, Initial Acquisition Date 4/28/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 3,285,000    
Fair Value, Ending Balance 2,900,000 [4],[20],[22]   3,285,000 [2],[3],[21]
Principal 4,427,000 [20],[22]   4,439,000 [2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Riddell Inc Delayed Draw Term Loan - First Lien Consumer goods: Durable Reference Rate and Spread SOFR+0.00% Maturity 3/29/29, Initial Acquisition Date 3/29/24      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[27] 4,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Riddell Inc First Lien Term Loan Consumer goods: Durable Interest Rate 11.3% Cash Reference Rate and Spread SOFR+6.00% Maturity 3/29/29, Initial Acquisition Date 3/29/24      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 6,246,000    
Principal [6],[20],[22] 6,364,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Riskonnect Parent LLC Delayed Draw Term Loan Application Software Interest Rate 0.5% Cash Maturity 12/7/28, Initial Acquisition Date 12/7/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[27] (50,000)    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Riskonnect Parent LLC Term Loan Application Software Interest Rate 11.0% Cash Reference Rate and Spread SOFR+5.50% Floor 0.75% Maturity 12/7/28, Initial Acquisition Date 12/7/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 1,212,000    
Principal [6],[20],[22] 1,225,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans South Street Securities Holdings, Inc Senior Notes Banking, Finance, Insurance & Real Estate Interest Rate 9.0% Cash Maturity 9/20/27, Initial Acquisition Date 9/20/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 2,528,000    
Fair Value, Ending Balance 2,552,000 [4],[6],[20]   2,528,000 [1],[2],[3]
Principal 3,150,000 [6],[20]   3,150,000 [1],[2]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Sundance Holdings Group, LLC Term Loan Retail Interest Rate 13.5% Cash + 1.5% PIK Reference Rate and Spread SOFR+8.00% Floor 1.00% Maturity 5/1/24, Initial Acquisition Date 10/1/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 6,412,000    
Principal [6],[20],[22] 6,639,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Sundance Holdings Group, LLC Term Loan Retail Interest Rate 13.5% Cash + 9.5% PIK Reference Rate and Spread SOFR+8.00% Floor 1.00% Maturity 5/1/24, Initial Acquisition Date 10/1/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 6,313,000    
Fair Value, Ending Balance [1],[2],[3],[21]     6,313,000
Principal [1],[2],[21]     6,528,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Symplr Software, Inc. Term Loan Healthcare & Pharmaceuticals Interest Rate 10.0% Cash Reference Rate and Spread SOFR+4.50% Floor 0.75% Maturity 12/22/27, Initial Acquisition Date 2/2/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [2],[3],[21] 1,502,000    
Fair Value, Ending Balance [2],[3],[21]     1,502,000
Principal [2],[21]     1,670,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Symplr Software, Inc. Term Loan Healthcare & Pharmaceuticals Interest Rate 9.9% Cash Reference Rate and Spread SOFR+4.50% Floor 0.75% Maturity 12/22/27, Initial Acquisition Date 2/2/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[20],[22] 1,572,000    
Principal [20],[22] 1,666,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Synamedia Americas Holdings, Inc. Term Loan Interactive Media & Services Interest Rate 13.1% Cash Reference Rate and Spread SOFR+7.75% Floor 1.00% Maturity 12/5/28, Initial Acquisition Date 12/5/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 2,662,000    
Fair Value, Ending Balance 2,639,000 [4],[6],[20],[22]   2,662,000 [1],[2],[3],[21]
Principal 2,714,000 [6],[20],[22]   2,759,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans TA/WEG Holdings, LLC Delayed Draw Term Loan Banking, Finance, Insurance & Real Estate Interest Rate 10.8% Cash Reference Rate and Spread SOFR+5.50% Floor 1.00% Maturity 10/2/27, Initial Acquisition Date 10/1/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22],[27] 7,853,000    
Principal [6],[20],[22],[27] 7,853,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans TA/WEG Holdings, LLC Delayed Draw Term Loan Banking, Finance, Insurance & Real Estate Interest Rate 10.8% Cash Reference Rate and Spread SOFR+5.50% Floor 1.00% Maturity 10/2/27, Initial Acquisition Date 5/2/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22],[27] 1,713,000    
Principal [6],[20],[22],[27] 1,713,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans TA/WEG Holdings, LLC Delayed Draw Term Loan Banking, Finance, Insurance & Real Estate Interest Rate 10.9% Cash Reference Rate and Spread SOFR+5.50% Floor 1.00% Maturity 10/2/27, Initial Acquisition Date 10/1/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21],[28] 7,873,000    
Fair Value, Ending Balance [1],[2],[3],[21],[28]     7,873,000
Principal [1],[2],[21],[28]     7,873,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans TA/WEG Holdings, LLC Delayed Draw Term Loan Banking, Finance, Insurance & Real Estate Interest Rate 11.2% Cash Reference Rate and Spread SOFR+5.75% Floor 1.00% Maturity 10/2/27, Initial Acquisition Date 5/2/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21],[28] 4,219,000    
Fair Value, Ending Balance [1],[2],[3],[21],[28]     4,219,000
Principal [1],[2],[21],[28]     4,219,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans TLE Holdings, LLC Delayed Draw Term Loan Healthcare, Education and Childcare Interest Rate 10.9% Cash Reference Rate and Spread SOFR+5.50% Floor 1.00% Maturity 6/29/26, Initial Acquisition Date 12/23/19      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 719,000    
Principal [6],[20],[22] 720,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans TLE Holdings, LLC Delayed Draw Term Loan Healthcare, Education and Childcare Interest Rate 11.0% Cash Reference Rate and Spread SOFR+5.50% Floor 1.00% Maturity 6/28/24, Initial Acquisition Date 12/23/19      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 718,000    
Fair Value, Ending Balance [1],[2],[3],[21]     718,000
Principal [1],[2],[21]     722,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans TLE Holdings, LLC Initial Term Loan Healthcare, Education and Childcare Interest Rate 11.0% Cash Reference Rate and Spread SOFR+5.50% Floor 1.00% Maturity 6/28/24, Initial Acquisition Date 12/8/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 5,444,000    
Fair Value, Ending Balance [1],[2],[3],[21]     5,444,000
Principal [1],[2],[21]     5,458,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans TLE Holdings, LLC Term Loan Healthcare, Education and Childcare Interest Rate 10.9% Cash Reference Rate and Spread SOFR+5.50% Floor 1.00% Maturity 6/29/26, Initial Acquisition Date 12/8/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 5,431,000    
Principal [6],[20],[22] 5,443,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Tactical Air Support, Inc. Delayed Draw Term Loan Aerospace and Defense Interest Rate 0.8% Cash Maturity 12/22/28, Initial Acquisition Date 12/22/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[27] (7,000)    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Tactical Air Support, Inc. Term Loan Aerospace and Defense Interest Rate 14.0% Cash Reference Rate and Spread SOFR+8.50% Floor 1.00% Maturity 12/22/28, Initial Acquisition Date 12/22/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 1,671,000    
Fair Value, Ending Balance 1,674,000 [4],[6],[20],[22]   1,671,000 [1],[2],[3],[21]
Principal 1,714,000 [6],[20],[22]   1,714,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans VBC Spine Opco LLC Delayed Draw Term Loan Healthcare & Pharmaceuticals Interest Rate 1.0% Cash Floor 2.00% Maturity 6/14/28, Initial Acquisition Date 6/14/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[28] (24,000)    
Fair Value, Ending Balance [1],[2],[3],[28]     (24,000)
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans VBC Spine Opco LLC Delayed Draw Term Loan Healthcare & Pharmaceuticals Interest Rate 1.0% Floor 2.00% Maturity 6/14/28, Initial Acquisition Date 6/14/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[27] (33,000)    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans VBC Spine Opco LLC Revolver Healthcare & Pharmaceuticals Interest Rate 13.5% Cash Reference Rate and Spread SOFR+8.00% Floor 2.00% Maturity 6/14/28, Initial Acquisition Date 6/14/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[28] 124,000    
Fair Value, Ending Balance 380,000 [4],[6],[20]   124,000 [1],[2],[3],[28]
Principal 387,000 [6],[20]   129,000 [1],[2],[28]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans VBC Spine Opco LLC Term Loan Healthcare & Pharmaceuticals Interest Rate 13.5% Cash Reference Rate and Spread SOFR+8.00% Floor 2.00% Maturity 6/14/28, Initial Acquisition Date 6/14/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 3,456,000    
Fair Value, Ending Balance 3,430,000 [4],[6],[20],[22]   3,456,000 [1],[2],[3],[21]
Principal 3,491,000 [6],[20],[22]   3,500,000 [1],[2],[21]
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Wonder Love, Inc. Term Loan Media: Diversified & Production Interest Rate 10.3% Cash Reference Rate and Spread SOFR+5.00% Floor 1.00% Maturity 11/18/24, Initial Acquisition Date 12/18/19      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 750,000    
Principal [6],[20],[22] 750,000    
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Secured Loans Wonder Love, Inc. Term Loan Media: Diversified & Production Interest Rate 10.4% Cash Reference Rate and Spread SOFR+5.00% Floor 1.00% Maturity 11/18/24, Initial Acquisition Date 12/18/19      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 1,124,000    
Fair Value, Ending Balance [1],[2],[3],[21]     1,124,000
Principal [1],[2],[21]     1,125,000
Investment, Identifier [Axis]: Debt Securities Portfolio Senior Unsecured Bond Tank Partners Equipment Holdings LLC 10.00% - 02/2022 -TankConvert Energy Oil & Gas Interest Rate 10.0% PIK Maturity 2/15/22, Initial Acquisition Date 2/15/19      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[23],[26] 43,000    
Fair Value, Ending Balance [1],[2],[23],[26]     43,000
Principal [1],[2],[23],[26]     511,000
Investment, Identifier [Axis]: Equity Securities Portfolio 4L Ultimate Topco Corporation Common Services: Business Initial Acquisition Date 5/29/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[31] 29,000    
Fair Value, Ending Balance 29,000 [4],[6],[20],[32]   29,000 [1],[2],[3],[31]
Investment, Identifier [Axis]: Equity Securities Portfolio AAPC Holdings, LLC Equity Healthcare & Pharmaceuticals Initial Acquisition Date 5/18/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[31],[33] 493,000    
Fair Value, Ending Balance 509,000 [4],[6],[20],[32],[34]   493,000 [1],[2],[3],[31],[33]
Investment, Identifier [Axis]: Equity Securities Portfolio AAPC Holdings, LLC Preferred Equity Healthcare & Pharmaceuticals Interest Rate 18.0% Cash Initial Acquisition Date 5/18/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[34] 201,000    
Investment, Identifier [Axis]: Equity Securities Portfolio AAPC Holdings, LLC Preferred Equity Healthcare & Pharmaceuticals Interest Rate 18.0% PIK Initial Acquisition Date 5/18/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[33] 195,000    
Fair Value, Ending Balance [1],[2],[3],[33]     195,000
Investment, Identifier [Axis]: Equity Securities Portfolio ATP Oil & Gas Corporation Limited Term Royalty Interest Energy Oil & Gas Initial Acquisition Date 12/18/19      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[35] 57,000    
Fair Value, Ending Balance [1],[2],[3],[35]     57,000
Investment, Identifier [Axis]: Equity Securities Portfolio Advantage Capital Holdings LLC Class A Membership Units Banking, Finance, Insurance & Real Estate Initial Acquisition Date 3/31/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[31],[33],[36] 2,128,000    
Fair Value, Ending Balance 1,883,000 [4],[6],[20],[32],[34],[37]   2,128,000 [1],[2],[3],[31],[33],[36]
Investment, Identifier [Axis]: Equity Securities Portfolio Advantage Capital Holdings LLC Class A Membership Units Banking, Finance, Insurance & Real Estate Initial Acquisition Date 4/14/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[31],[33] 700,000    
Fair Value, Ending Balance 649,000 [4],[6],[20],[32],[34]   700,000 [1],[2],[3],[31],[33]
Investment, Identifier [Axis]: Equity Securities Portfolio Advantage Capital Holdings LLC Preferred Equity Banking, Finance, Insurance & Real Estate Interest Rate 12.5% PIK Initial Acquisition Date 4/14/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[33] 2,733,000    
Fair Value, Ending Balance 2,548,000 [4],[6],[20],[34]   2,733,000 [1],[2],[3],[33]
Investment, Identifier [Axis]: Equity Securities Portfolio Aperture Dodge 18 LLC Equity Banking, Finance, Insurance & Real Estate Initial Acquisition Date 4/22/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[31] 3,237,000    
Fair Value, Ending Balance 3,317,000 [4],[6],[20],[32]   3,237,000 [1],[2],[3],[31]
Investment, Identifier [Axis]: Equity Securities Portfolio BMP Slappey Holdco, LLC Preferred Stock Telecommunications Initial Acquisition Date 6/9/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[29],[31],[38] 553,000    
Fair Value, Ending Balance 631,000 [4],[6],[20],[30],[32],[39]   553,000 [1],[2],[3],[29],[31],[38]
Investment, Identifier [Axis]: Equity Securities Portfolio BMP Slappey Investment II Preferred Stock Telecommunications Initial Acquisition Date 6/9/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[29],[31],[38] 246,000    
Fair Value, Ending Balance 281,000 [4],[6],[20],[30],[32],[39]   246,000 [1],[2],[3],[29],[31],[38]
Investment, Identifier [Axis]: Equity Securities Portfolio Carestream Health Holdings, Inc Common Stock Healthcare & Pharmaceuticals Initial Acquisition Date 9/30/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[31] 93,000    
Fair Value, Ending Balance 91,000 [4],[6],[20],[32]   93,000 [1],[2],[3],[31]
Investment, Identifier [Axis]: Equity Securities Portfolio Centric Brands Inc. Common Machinery (Non-Agrclt/Constr/Electr) Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21],[31],[38] 121,000    
Fair Value, Ending Balance [1],[2],[3],[21],[31],[38]     121,000
Investment, Identifier [Axis]: Equity Securities Portfolio Centric Brands, L.P. Equity Machinery (Non-Agrclt/Constr/Electr) Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[22] 1,343,000    
Investment, Identifier [Axis]: Equity Securities Portfolio DxTx Pain and Spine LLC Common Healthcare & Pharmaceuticals Initial Acquisition Date 6/14/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 258,000    
Fair Value, Ending Balance 259,000 [4],[6],[20]   258,000 [1],[2],[3]
Investment, Identifier [Axis]: Equity Securities Portfolio EBSC Holdings LLC Preferred Equity Consumer goods: Durable Initial Acquisition Date 3/29/24      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20] 1,974,000    
Investment, Identifier [Axis]: Equity Securities Portfolio Equities Net Asset Value at Fair Value      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [3] 20,533,000    
Fair Value, Ending Balance 23,428,000 [4]   20,533,000 [3]
Investment, Identifier [Axis]: Equity Securities Portfolio Everyware Global, Inc. Common Consumer Goods Durable Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[31] 174,000    
Fair Value, Ending Balance [1],[2],[3],[31]     174,000
Investment, Identifier [Axis]: Equity Securities Portfolio Everyware Global, Inc. Common Consumer goods: Durable Initial Acquisition Date 10/28/20      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[32] 175,000    
Investment, Identifier [Axis]: Equity Securities Portfolio FP WRCA Coinvestment Fund VII, Ltd Class A Shares Capital Equipment Initial Acquisition Date 2/2/07      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[3],[5],[31] 903,000    
Fair Value, Ending Balance 783,000 [4],[6],[7],[32]   903,000 [1],[3],[5],[31]
Investment, Identifier [Axis]: Equity Securities Portfolio GreenPark Infrastructure, LLC Preferred Equity Energy: Electricity Initial Acquisition Date 6/10/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[30],[32],[34] 500,000    
Investment, Identifier [Axis]: Equity Securities Portfolio GreenPark Infrastructure, LLC Preferred Equity Energy: Electricity One Initial Acquisition Date 6/10/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[27],[30],[32],[34] 171,000    
Investment, Identifier [Axis]: Equity Securities Portfolio Greenpark Infrastructure, Llc Preferred Equity Energy Electricity Initial Acquisition Date 6/10/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[29],[31],[33] 500,000    
Fair Value, Ending Balance [1],[2],[3],[29],[31],[33]     500,000
Investment, Identifier [Axis]: Equity Securities Portfolio Greenpark Infrastructure, Llc Preferred Equity Energy Electricity One Initial Acquisition Date 6/10/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[28],[29],[31],[33] 171,000    
Fair Value, Ending Balance [1],[2],[3],[28],[29],[31],[33]     171,000
Investment, Identifier [Axis]: Equity Securities Portfolio Kleen-Tech Acquisition, LLC Common Stock Services: Business Initial Acquisition Date 6/9/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[30],[32],[39] 1,148,000    
Investment, Identifier [Axis]: Equity Securities Portfolio LB NewHoldCo LLC Common Stock Hotel, Gaming & Leisure Initial Acquisition Date 10/2/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 1,442,000    
Fair Value, Ending Balance 1,497,000 [4],[6],[20],[22]   1,442,000 [1],[2],[3],[21]
Investment, Identifier [Axis]: Equity Securities Portfolio Morae Global Holdings Inc Warrant IT Consulting & Other Services Initial Acquisition Date 10/26/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3] 99,000    
Fair Value, Ending Balance [1],[2],[3]     99,000
Investment, Identifier [Axis]: Equity Securities Portfolio Morae Global Holdings Inc. Warrants IT Consulting & Other Services Initial Acquisition Date 10/26/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20] 109,000    
Investment, Identifier [Axis]: Equity Securities Portfolio Northeast Metal Works LLC Preferred Stock Metals & Mining Initial Acquisition Date 4/5/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[29] 4,182,000    
Fair Value, Ending Balance [1],[2],[3],[29]     4,182,000
Investment, Identifier [Axis]: Equity Securities Portfolio Northeast Metal Works LLC Preferred Stock Metals & Mining Interest Rate 10.0% PIK Initial Acquisition Date 4/5/23      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[30] 4,182,000    
Investment, Identifier [Axis]: Equity Securities Portfolio Prosper Marketplace Class B Preferred Units Consumer goods: Durable Business Initial Acquisition Date 9/23/13      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[31],[40] 324,000    
Fair Value, Ending Balance [1],[2],[3],[31],[40]     324,000
Investment, Identifier [Axis]: Equity Securities Portfolio Prosper Marketplace Class B Preferred Units Consumer goods: Durable Initial Acquisition Date 9/23/13      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[32],[41] 324,000    
Investment, Identifier [Axis]: Equity Securities Portfolio Roscoe Investors, LLC Class A Units Healthcare & Pharmaceuticals Business Initial Acquisition Date 3/26/14      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[31] 425,000    
Fair Value, Ending Balance [1],[2],[3],[31]     425,000
Investment, Identifier [Axis]: Equity Securities Portfolio Roscoe Investors, LLC Class A Units Healthcare & Pharmaceuticals Initial Acquisition Date 3/26/14      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[32] 443,000    
Investment, Identifier [Axis]: Equity Securities Portfolio South Street Securities Holdings, Inc Warrant Banking, Finance, Insurance & Real Estate Initial Acquisition Date 9/20/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[31] 403,000    
Fair Value, Ending Balance [1],[2],[3],[31]     403,000
Investment, Identifier [Axis]: Equity Securities Portfolio South Street Securities Holdings, Inc Warrants Banking, Finance, Insurance & Real Estate Initial Acquisition Date 9/20/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Ending Balance [4],[6],[20],[32] 381,000    
Investment, Identifier [Axis]: Equity Securities Portfolio Sundance Holdings Group, LLC Common Stock Retail Initial Acquisition Date 10/1/21      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[2],[3],[21] 69,000    
Fair Value, Ending Balance [1],[2],[3],[21]     69,000
Investment, Identifier [Axis]: Investments Net Asset Value at Fair Value      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance 467,865,000    
Fair Value, Ending Balance 471,255,000 [4],[42]   467,865,000
Investment, Identifier [Axis]: Joint Venture Net Asset Value at Fair Value      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [3] 59,287,000    
Fair Value, Ending Balance 53,164,000 [4]   59,287,000 [3]
Investment, Identifier [Axis]: Joint Venture Portfolio KCAP Freedom 3 LLC Joint Ventures Percentage Ownership 62.8% Initial Acquisition Date 12/11/18      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [1],[3],[26] 14,275,000    
Fair Value, Ending Balance 13,523,000 [4],[6],[25]   14,275,000 [1],[3],[26]
Investment, Identifier [Axis]: Joint Venture Portfolio Series A-Great Lakes Funding II LLC Joint Ventures Percentage Ownership 12.5% Initial Acquisition Date 8/5/22      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [3],[28],[29],[43],[44] 45,012,000    
Fair Value, Ending Balance 39,641,000 [4],[27],[30],[45],[46]   45,012,000 [3],[28],[29],[43],[44]
Investment, Identifier [Axis]: Non-controlled Affiliates BMP Slappey Holdco, LLC Industry Classification - Telecommunications      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance 553,000 [13],[15],[16],[47] 464,000 [8],[9],[10],[11] 464,000 [8],[9],[10],[11]
Net Change in Unrealized Gain/(Loss) 78,000 [13],[15],[16],[47]   89,000 [8],[9],[10],[11]
Fair Value, Ending Balance [13],[15],[16],[47] 631,000   553,000
Principal 200,000 [13],[15],[16],[47]   200,000 [8],[9],[10],[11]
Investment, Identifier [Axis]: Non-controlled Affiliates BMP Slappey Investment II Industry Classification - Telecommunications      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [13],[15],[16],[47] 246,000    
Net Change in Unrealized Gain/(Loss) [13],[15],[16],[47] 35,000    
Fair Value, Ending Balance [13],[15],[16],[47] 281,000   246,000
Principal [13],[15],[16],[47] 88,946    
Investment, Identifier [Axis]: Non-controlled Affiliates GreenPark Infrastructure, LLC Industry Classification - Energy: Electricity      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [13],[15],[16],[47] 500,000    
Fair Value, Ending Balance [13],[15],[16],[47] 500,000   500,000
Principal [13],[15],[16],[47] 1,000    
Investment, Identifier [Axis]: Non-controlled Affiliates GreenPark Infrastructure, LLC Industry Classification - Energy: Electricity One      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [13],[15],[16],[47],[48] 171,000    
Fair Value, Ending Balance [13],[15],[16],[47],[48] 171,000   171,000
Principal [13],[15],[16],[47],[48] 500    
Investment, Identifier [Axis]: Non-controlled Affiliates Kleen-Tech Acquisition, LLC Industry Classification - Services: Business      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance 998,000 [1],[2],[3],[15],[16],[29],[31],[38],[47] 1,300,000 [8],[9],[10],[11] 1,300,000 [8],[9],[10],[11]
Net Change in Unrealized Gain/(Loss) 150,000 [13],[15],[16],[47]   (302,000) [8],[9],[10],[11]
Fair Value, Ending Balance [15],[16],[47] 1,148,000 [13]   998,000 [1],[2],[3],[29],[31],[38]
Principal 250,000 [13],[15],[16],[47]   250,000 [8],[9],[10],[11]
Investment, Identifier [Axis]: Non-controlled Affiliates Navex Topco, Inc. Industry Classification - Electronics      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [10],[11]   7,604,000 7,604,000
Purchases/ (sales) of or Advances/ (Distributions) [10],[11]     (7,700,000)
Net Accretion [10],[11]     310,000
Net Change in Unrealized Gain/(Loss) [10],[11]     (214,000)
Interest and Fee Income [10],[11]     804,000
Investment, Identifier [Axis]: Non-controlled Affiliates Northeast Metal Works LLC Industry Classification - Metals & Mining      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [8],[10],[11]   13,445,000 13,445,000
Purchases/ (sales) of or Advances/ (Distributions) 500,000 [13],[16],[47]   (4,428,000) [8],[10],[11]
Transfers In (Out) of Affiliates 0 [13],[16],[47]   (9,000,000) [8],[10],[11]
Net Change in Unrealized Gain/(Loss) 0 [13],[16],[47]   1,107,000 [8],[10],[11]
Realized Gain/(Loss) [8],[10],[11]     (1,124,000)
Fair Value, Ending Balance [13],[16],[47] 500,000    
Principal [13],[16],[47] 500    
Interest and Fee Income 4,000 [13],[16],[47]   377,000 [8],[10],[11]
Investment, Identifier [Axis]: Non-controlled Affiliates Northeast Metal Works LLC Industry Classification - Metals & Mining One      
Summary of Investment Holdings [Line Items]      
Principal 2,368 [13],[15],[16],[47]   2,368 [8],[9],[10],[11]
Investment, Identifier [Axis]: Non-controlled Affiliates Northeast Metal Works LLC Industry Classification - Metals & Mining Three      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [13],[16],[47] 3,560,000    
Net Accretion [8],[10],[11]     4,500,000
Transfers In (Out) of Affiliates [13],[16],[47] 0    
Net Change in Unrealized Gain/(Loss) (191,000) [13],[16],[47]   (940,000) [8],[10],[11]
Fair Value, Ending Balance [13],[16],[47] 3,369,000   3,560,000
Principal 4,500 [13],[16],[47]   4,500 [8],[10],[11]
Interest and Fee Income 91,000 [13],[16],[47]   270,000 [8],[10],[11]
Investment, Identifier [Axis]: Non-controlled Affiliates Northeast Metal Works LLC Industry Classification - Metals & Mining Two      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [13],[15],[16],[47] 4,182,000    
Transfers In (Out) of Affiliates 0 [13],[15],[16],[47]   4,500,000 [8],[9],[10],[11]
Net Change in Unrealized Gain/(Loss) 0 [13],[15],[16],[47]   (318,000) [8],[9],[10],[11]
Fair Value, Ending Balance [13],[15],[16],[47] 4,182,000   4,182,000
Principal 4,500,000 [13],[15],[16],[47]   4,500,000 [8],[9],[10],[11]
Interest and Fee Income 112,000 [13],[15],[16],[47]   333,000 [8],[9],[10],[11]
Investment, Identifier [Axis]: Non-controlled Affiliates Series A-Great Lakes Funding II LLC Industry Classification - Joint Venture      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [15],[47],[48] 45,012,000    
Purchases/ (sales) of or Advances/ (Distributions) [15],[47],[48] (5,439,000)    
Net Change in Unrealized Gain/(Loss) [15],[47],[48] (68,000)    
Fair Value, Ending Balance [15],[47],[48] 39,641,000   45,012,000
Principal [15],[47],[48] 38,562    
Total dividend income [15],[47],[48] 1,653,000    
Investment, Identifier [Axis]: Non-controlled Affiliates Surge Hippodrome Holdings LLC Industry Classification - Services: Business      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [8],[9],[10],[11]   484,000 484,000
Purchases/ (sales) of or Advances/ (Distributions) [8],[9],[10],[11]     (496,000)
Net Change in Unrealized Gain/(Loss) [8],[9],[10],[11]     (325,000)
Realized Gain/(Loss) [8],[9],[10],[11]     337,000
Investment, Identifier [Axis]: Non-controlled Affiliates Surge Hippodrome Holdings LLC Industry Classification - Services: Business One      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [8],[10],[11]   5,165,000 5,165,000
Purchases/ (sales) of or Advances/ (Distributions) [8],[10],[11]     (5,460,000)
Net Accretion [8],[10],[11]     328,000
Net Change in Unrealized Gain/(Loss) [8],[10],[11]     (33,000)
Interest and Fee Income [8],[10],[11]     675,000
Investment, Identifier [Axis]: Non-controlled Affiliates Surge Hippodrome Partners LP Industry Classification - Services: Business      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [8],[9],[10],[11]   811,000 811,000
Purchases/ (sales) of or Advances/ (Distributions) [8],[9],[10],[11]     (813,000)
Net Change in Unrealized Gain/(Loss) [8],[9],[10],[11]     (386,000)
Realized Gain/(Loss) [8],[9],[10],[11]     388,000
Investment, Identifier [Axis]: Non-controlled Affiliates Zest Acquisition Corp. Industry Classification - Healthcare, Education and Childcare      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [8],[10],[11]   3,390,000 3,390,000
Purchases/ (sales) of or Advances/ (Distributions) [8],[10],[11]     (3,501,000)
Net Accretion [8],[10],[11]     9,000
Net Change in Unrealized Gain/(Loss) [8],[10],[11]     102,000
Interest and Fee Income [8],[10],[11]     42,000
Investment, Identifier [Axis]: Total Affiliated Investments      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance 69,540,000 92,780,000 92,780,000
Purchases/ (sales) of or Advances/ (Distributions) (5,908,000)   (20,081,000)
Net Accretion 0   647,000
Net Change in Unrealized Gain/(Loss) 730,000   (3,374,000)
Realized Gain/(Loss) (416,000)   (432,000)
Fair Value, Ending Balance 63,946,000   69,540,000
Interest and Fee Income 207,000   2,501,000
Total dividend income 1,653,000   8,948,000
Investment, Identifier [Axis]: Total Non-controlled affiliates      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance 55,222,000 73,827,000 73,827,000
Purchases/ (sales) of or Advances/ (Distributions) (4,939,000)   (19,833,000)
Net Accretion 0   647,000
Net Change in Unrealized Gain/(Loss) 140,000   980,000
Realized Gain/(Loss)     (399,000)
Fair Value, Ending Balance 50,423,000   55,222,000
Interest and Fee Income 207,000   2,501,000
Total dividend income 1,653,000   6,764,000
Investment, Identifier [Axis]: Total Senior Unsecured Bond Net Asset Value at Fair Value      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance [3] 43,000    
Fair Value, Ending Balance [3]     43,000
Investment, Identifier [Axis]: Total controlled affiliates      
Summary of Investment Holdings [Line Items]      
Fair Value, Beginning Balance 14,318,000 $ 18,953,000 18,953,000
Purchases/ (sales) of or Advances/ (Distributions) (969,000)   (248,000)
Net Change in Unrealized Gain/(Loss) 590,000   (4,354,000)
Realized Gain/(Loss) (416,000)   (33,000)
Fair Value, Ending Balance 13,523,000   14,318,000
Total dividend income $ 0   $ 2,184,000
[1] Fair value of this investment was determined using significant unobservable inputs.
[2] Qualified asset for purposes of section 55(a) of the Investment Company Act of 1940, as amended (the “1940 Act”). Qualifying assets represent approximately 86.6% of the total assets at December 31, 2023.
[3] Reflects the fair market value of all investments as of December 31, 2023 as determined by the Company’s Board.
[4] Reflects the fair market value of all investments as of March 31, 2024 as determined in good faith using significant unobservable inputs by the Adviser in its role as “valuation designee” in accordance with Rule 2a-5 under the 1940 Act, pursuant to valuation policies and procedures that have been approved by the Company’s board of directors (the “Board”).
[5] Non-U.S. company or principal place of business outside the U.S.
[6] Fair value of this investment was determined using significant unobservable inputs.
[7] Non-U.S. company or principal place of business outside the U.S.
[8] Fair value of this investment was determined using significant unobservable inputs.
[9] Number of shares held.
[10] Qualified asset for purposes of section 55(a) of the Investment Company Act of 1940.
[11] Under the 1940 Act, the Company is deemed to be an “Affiliated Person” of, as defined in the 1940 Act, this portfolio company as the Company owns at least 5% of the portfolio company’s outstanding voting securities or is under common control with such portfolio company.
[12] As defined in the 1940 Act, the Company is deemed to be both an “Affiliated Person” and has “Control” of this portfolio company as the Company owns more than 25% of the portfolio company’s outstanding voting securities or has the power to exercise control over management or policies of such portfolio company.
[13] Fair value of this investment was determined using significant unobservable inputs.
[14] As defined in the 1940 Act, the Company is deemed to be both an “Affiliated Person” and has “Control” of this portfolio company as the Company owns more than 25% of the portfolio company’s outstanding voting securities or has the power to exercise control over management or policies of such portfolio company.
[15] Number of shares held.
[16] Qualified asset for purposes of section 55(a) of the Investment Company Act of 1940.
[17] Ownership of LP interest held through the holding company BCP Great Lakes Fund, L.P., a non-U.S. company or principal place of business outside the U.S.
[18] As defined in the 1940 Act, the Company is deemed to be both an “Affiliated Person” and has “Control” of this portfolio company as the Company owns more than 25% of the portfolio company’s outstanding voting securities or has the power to exercise control over management or policies of such portfolio company securities or has the power to exercise control over management or policies of such portfolio company (including through a management agreement). Other than for purposes of the 1940 Act, the Company does not believe that it has control over this portfolio company.
[19] As defined in the 1940 Act, the Company is deemed to be both an “Affiliated Person” and has “Control” of this portfolio company as the Company owns more than 25% of the portfolio company’s outstanding voting securities or has the power to exercise control over management or policies of such portfolio company securities or has the power to exercise control over management or policies of such portfolio company (including through a management agreement). Other than for purposes of the 1940 Act, the Company does not believe that it has control over this portfolio company.
[20] Qualified asset for purposes of section 55(a) of the Investment Company Act of 1940, as amended (the “1940 Act”). Qualifying assets represent approximately 87.1% of the total assets at March 31, 2024.
[21] As of December 31, 2023, this investment is pledged to secure the Company’s debt obligations.
[22] As of March 31, 2024, this investment is pledged to secure the Company’s debt obligations.
[23] Loan or debt security is on non-accrual status and therefore is considered non-income producing.
[24] Loan or debt security is on non-accrual status and therefore is considered non-income producing.
[25] As defined in the 1940 Act, the Company is deemed to be both an “Affiliated Person” and has “Control” of this portfolio company as the Company owns more than 25% of the portfolio company’s outstanding voting securities or has the power to exercise control over management or policies of such portfolio company (including through a management agreement). Other than for purposes of the 1940 Act, the Company does not believe that it has control over this portfolio company.
[26] As defined in the 1940 Act, the Company is deemed to be both an “Affiliated Person” and has “Control” of this portfolio company as the Company owns more than 25% of the portfolio company’s outstanding voting securities or has the power to exercise control over management or policies of such portfolio company (including through a management agreement). Other than for purposes of the 1940 Act, the Company does not believe that it has control over this portfolio company.
[27] Security has an unfunded commitment in addition to the amounts shown in the Consolidated Schedule of Investments. See Note 8 for additional information on the Company’s commitments and contingencies.
[28] Debt security has an unfunded commitment in addition to the amounts shown in the Consolidated Schedule of Investments. See Note 8 for additional information on the Company’s commitments and contingencies.

See accompanying notes to unaudited consolidated financial statements.
[29] Under the 1940 Act, the Company is deemed to be an “Affiliated Person” of, as defined in the 1940 Act, this portfolio company as the Company owns at least 5% of the portfolio company’s outstanding voting securities or is under common control with such portfolio company.
[30] Under the 1940 Act, the Company is deemed to be an “Affiliated Person” of, as defined in the 1940 Act, this portfolio company as the Company owns at least 5% of the portfolio company’s outstanding voting securities or is under common control with such portfolio company.
[31] Non-income producing.
[32] Non-income producing.
[33] This investment is held by PTMN Sub Holdings LLC, one of the company's taxable blocker subsidiaries.

 

 

See accompanying notes to unaudited consolidated financial statements.
[34] This investment is owned by PTMN Sub Holdings LLC, one of the Company’s taxable blocker subsidiaries.
[35] This investment is on non-accrual status and receives a 5% royalty interest on oil being produced on certain fields. All production payments received are being applied to the cost basis and are considered return of capital.
[36] Information related to the Company’s derivatives is presented below as of December 31, 2023:

($ in thousands)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Description

 

Counterparty

 

Number of shares

 

 

Notional amount

 

 

Exercise price

 

 

Expiration date

 

Value

 

Call option

 

HDNet Holdco LLC

 

0.2

 

 

$

8

 

 

 

0.01

 

 

 N/A

 

$

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Description

 

Counterparty

 

Number of shares

 

 

Notional amount

 

 

Exercise price

 

 

Expiration date

 

Value

 

Put option

 

Advantage Capital Holdings LLC

 

 

164

 

 

$

563

 

 

 

20

 

 

4/24/24

 

$

-

 

 
[37] Information related to the Company’s derivatives is presented below as of March 31, 2024:

 

($ in thousands)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Description

 

Counterparty

 

Number of shares

 

 

Notional amount

 

 

Exercise price

 

 

Expiration date

 

Value

 

Call option

 

HDNet Holdco LLC

 

0.2

 

 

$

8

 

 

 

0.01

 

 

 N/A

 

$

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Description

 

Counterparty

 

Number of shares

 

 

Notional amount

 

 

Exercise price

 

 

Expiration date

 

Value

 

Put option

 

Advantage Capital Holdings LLC

 

 

164

 

 

$

563

 

 

 

20

 

 

4/24/24

 

$

-

 

See accompanying notes to unaudited consolidated financial statements.
[38] This investment is owned by HCAP Equity Holdings, LLC, one of the Company’s taxable blocker subsidiaries.
[39] This investment is owned by HCAP Equity Holdings, LLC, one of the Company’s taxable blocker subsidiaries.
[40] Held through Garrison Capital Equity Holdings II LLC and net of non-controlling member’s interest of 17.5% pursuant to the Amended and Restated Limited Liability Company Agreement of Garrison Capital Equity Holdings II LLC.
[41] Held through Garrison Capital Equity Holdings II LLC and net of non-controlling member’s interest of 17.5% pursuant to the Amended and Restated Limited Liability Company Agreement of Garrison Capital Equity Holdings II LLC.
[42] The aggregate cost of investments for federal income tax purposes is approximately $513.6 million. The aggregate gross unrealized appreciation is approximately $31.5 million, the aggregate gross unrealized depreciation is approximately $0.2 million and the net unrealized depreciation is approximately $31.3 million.
[43] Non-voting.
[44] Ownership of LP interest held through the holding company BCP Great Lakes Fund, L.P., a non-U.S. company or principal place of business outside the U.S.
[45] Non-voting.
[46] See Note 4 - Investments for additional information regarding the Company's investment in Series A-Great Lakes Funding II LLC.
[47] Under the 1940 Act, the Company is deemed to be an “Affiliated Person” of, as defined in the 1940 Act, this portfolio company as the Company owns at least 5% of the portfolio company’s outstanding voting securities or is under common control with such portfolio company.
[48] Ownership of LP interest held through the holding company BCP Great Lakes Fund, L.P., a non-U.S. company or principal place of business outside the U.S.