v3.26.1
INVESTMENTS - Thompson Rivers LLC (Details)
 3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
loan
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
loan
Jun. 30, 2025
USD ($)
May 27, 2026
USD ($)
Dec. 31, 2025
USD ($)
loan
Nov. 25, 2025
USD ($)
Dec. 31, 2024
USD ($)
Aug. 12, 2022
USD ($)
Jul. 08, 2021
USD ($)
Feb. 08, 2021
USD ($)
May 13, 2020
USD ($)
Schedule of Investments [Line Items]                        
Total dividend income $ 14,021,000 $ 14,593,000 $ 25,926,000 $ 25,335,000                
Fair Value 2,458,590,000   2,458,590,000     $ 2,398,524,000            
Thompson Rivers LLC                        
Schedule of Investments [Line Items]                        
Total dividend income 0 0 0 0                
Distributions recognized as a return of capital 400,000 600,000 1,600,000 1,600,000                
Fair Value $ 65,620,000   $ 65,620,000     $ 111,752,000            
Investment owned, outstanding loans | loan 419   419     700            
Investment owned, average unpaid balance $ 200,000   $ 200,000     $ 200,000            
Investment owned, weighted average yield rate 3.80%   3.80%     4.00%            
Thompson Rivers LLC | JPMorgan Chase Bank                        
Schedule of Investments [Line Items]                        
Repurchase agreement counterparty, amount at risk           $ 27,100,000            
Thompson Rivers LLC | Bank of America N.A.,                        
Schedule of Investments [Line Items]                        
Repurchase agreement counterparty, amount at risk $ 53,100,000   $ 53,100,000     68,500,000            
Thompson Rivers LLC | Ginnie Mae Early Buyout Loans                        
Schedule of Investments [Line Items]                        
Fair Value 65,600,000   65,600,000     111,800,000            
Thompson Rivers LLC | Cash and Cash Equivalents                        
Schedule of Investments [Line Items]                        
Fair Value 1,600,000   1,600,000     7,000,000.0            
Thompson Rivers LLC                        
Schedule of Investments [Line Items]                        
Total contributed capital 450,000,000.0   450,000,000.0                  
Dividends 2,500,000 $ 4,000,000.0 10,000,000.0 $ 10,000,000.0                
Investment, Identifier [Axis]: A.T. Holdings II LTD | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 7,459,000 [1],[2],[3]   7,459,000 [1],[2],[3]     7,546,000 [4],[5],[6]            
Investment, Identifier [Axis]: AD Bidco, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [6],[7],[8],[9]           13,120,000            
Investment, Identifier [Axis]: AD Bidco, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [6],[7],[8],[9]           0            
Investment, Identifier [Axis]: AIT Worldwide Logistics Holdings, Inc. | Partnership Units                        
Schedule of Investments [Line Items]                        
Fair Value [6],[10]           785,000            
Investment, Identifier [Axis]: AMMC CLO 22, Limited Series 2018-22A | Subordinated Structured Notes                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[10],[11]           0            
Investment, Identifier [Axis]: AMP Purchaser, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13] 5,706,000   5,706,000                  
Investment, Identifier [Axis]: AMP Purchaser, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] (4,000)   (4,000)                  
Investment, Identifier [Axis]: APC1 Holding | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,614,000 [2],[3],[13],[15]   2,614,000 [2],[3],[13],[15]     2,701,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: ARC Interco Purchaser, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [6],[7],[8],[9]           2,974,000            
Investment, Identifier [Axis]: ARC Interco Purchaser, LLC | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] 4,691,000   4,691,000                  
Investment, Identifier [Axis]: ARC Interco Purchaser, LLC | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[17] 608,000   608,000                  
Investment, Identifier [Axis]: ARC Interco Purchaser, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 129,000 [3],[18]   129,000 [3],[18]     122,000 [6],[10]            
Investment, Identifier [Axis]: ARC Interco Purchaser, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (16,000) [3],[12],[13],[14]   (16,000) [3],[12],[13],[14]     (7,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: ASC Communications, LLC | Class A Units                        
Schedule of Investments [Line Items]                        
Fair Value 971,000 [3]   971,000 [3]     880,000 [6]            
Investment, Identifier [Axis]: ASC Communications, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,691,000 [3],[13],[17]   4,691,000 [3],[13],[17]     5,171,000 [6],[9],[19]            
Investment, Identifier [Axis]: ASC Communications, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (6,000) [3],[13],[14],[17]   (6,000) [3],[13],[14],[17]     (7,000) [6],[7],[9],[19]            
Investment, Identifier [Axis]: ATL II MRO Holdings Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 18,829,000 [3],[12],[13]   18,829,000 [3],[12],[13]     18,939,000 [6],[8],[9]            
Investment, Identifier [Axis]: ATL II MRO Holdings Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (33,000) [3],[12],[13],[14]   (33,000) [3],[12],[13],[14]     (31,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: AWP Group Holdings, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[17] 8,464,000   8,464,000                  
Investment, Identifier [Axis]: AWP Group Holdings, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[14],[17] 384,000   384,000                  
Investment, Identifier [Axis]: Accelerant Holdings | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 2,946,000 [18]   2,946,000 [18]     4,110,000 [10]            
Investment, Identifier [Axis]: Accelevation LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 6,065,000 [3],[13],[14],[17]   6,065,000 [3],[13],[14],[17]     1,221,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Accelevation LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (15,000) [3],[13],[14],[17]   (15,000) [3],[13],[14],[17]     159,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Acclime Holdings HK Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[8],[9]           7,266,000            
Investment, Identifier [Axis]: Acclime Holdings HK Limited | Subordinated Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 269,000 [2],[3]   269,000 [2],[3]     234,000 [5],[6]            
Investment, Identifier [Axis]: Accurus Aerospace Corporation | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 381,000 [3],[18]   381,000 [3],[18]     149,000 [6],[10]            
Investment, Identifier [Axis]: Accurus Aerospace Corporation | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 12,967,000 [3],[12],[13]   12,967,000 [3],[12],[13]     12,951,000 [6],[8],[9]            
Investment, Identifier [Axis]: Accurus Aerospace Corporation | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 16,000 [3],[18]   16,000 [3],[18]     6,000 [6],[10]            
Investment, Identifier [Axis]: Accurus Aerospace Corporation | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 1,494,000 [3],[12],[13],[14]   1,494,000 [3],[12],[13],[14]     270,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Acogroup | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,566,000 [2],[3],[13],[15],[20]   1,566,000 [2],[3],[13],[15],[20]     3,349,000 [5],[6],[9],[16],[21]            
Investment, Identifier [Axis]: Adhefin International | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,280,000 [2],[3],[13],[15]   2,280,000 [2],[3],[13],[15]     2,311,000 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: Advantage Software Company (The), LLC | Class A1 Partnership Units                        
Schedule of Investments [Line Items]                        
Fair Value 238,000 [3],[18]   238,000 [3],[18]     379,000 [6],[10]            
Investment, Identifier [Axis]: Advantage Software Company (The), LLC | Class A2 Partnership Units                        
Schedule of Investments [Line Items]                        
Fair Value 61,000 [3],[18]   61,000 [3],[18]     98,000 [6],[10]            
Investment, Identifier [Axis]: Advantage Software Company (The), LLC | Class B1 Partnership Units                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: Advantage Software Company (The), LLC | Class B2 Partnership Units                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: Aegros Holdco 2 Ltd | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 590,000 [2],[3],[18]   590,000 [2],[3],[18]     610,000 [5],[6],[10]            
Investment, Identifier [Axis]: Aegros Holdco 2 Ltd | Second Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,493,000 [2],[3],[13],[22]   5,493,000 [2],[3],[13],[22]     5,310,000 [5],[6]            
Investment, Identifier [Axis]: AirX Climate Solutions, Inc. | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 4,188,000 [3],[12],[13],[14]   4,188,000 [3],[12],[13],[14]     3,222,000 [6],[8],[9]            
Investment, Identifier [Axis]: AirX Climate Solutions, Inc. | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 3,264,000 [3],[12],[13]   3,264,000 [3],[12],[13]     3,249,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: AirX Climate Solutions, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 155,000 [3],[12],[13],[14]   155,000 [3],[12],[13],[14]     0 [6],[7],[8],[9]            
Investment, Identifier [Axis]: AlliA Insurance Brokers NV | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,229,000 [2],[3],[13],[15]   5,229,000 [2],[3],[13],[15]     5,510,000 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Amalfi Midco | Class B Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 2,625,000 [2],[3],[18]   2,625,000 [2],[3],[18]     2,661,000 [5],[6],[10]            
Investment, Identifier [Axis]: Amalfi Midco | Second Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 384,000 [2],[3]   384,000 [2],[3]     361,000 [5],[6]            
Investment, Identifier [Axis]: Amalfi Midco | Subordinated Loan Notes                        
Schedule of Investments [Line Items]                        
Fair Value 3,924,000 [2],[3]   3,924,000 [2],[3]     6,575,000 [5],[6]            
Investment, Identifier [Axis]: Amalfi Midco | Warrants                        
Schedule of Investments [Line Items]                        
Fair Value 1,247,000 [2],[3],[18]   1,247,000 [2],[3],[18]     1,167,000 [5],[6],[10]            
Investment, Identifier [Axis]: Americo Chemical Products, LLC | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 103,000 [3],[18]   103,000 [3],[18]     108,000 [6],[10]            
Investment, Identifier [Axis]: Americo Chemical Products, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,773,000 [3],[13],[17]   4,773,000 [3],[13],[17]     4,875,000 [6],[9],[19]            
Investment, Identifier [Axis]: Americo Chemical Products, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (5,000) [3],[13],[14],[17]   (5,000) [3],[13],[14],[17]     (6,000) [6],[7],[9],[19]            
Investment, Identifier [Axis]: AnalytiChem Holding GmbH | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 6,035,000 [2],[3],[13],[24]   6,035,000 [2],[3],[13],[24]     6,225,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: AnalytiChem Holding GmbH | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 1,007,000 [2],[3],[13],[25]   1,007,000 [2],[3],[13],[25]     1,012,000 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Apex Bidco Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,381,000 [2],[3],[13],[22]   3,381,000 [2],[3],[13],[22]     3,403,000 [5],[6],[9],[26]            
Investment, Identifier [Axis]: Apex Bidco Limited | Subordinated Senior Unsecured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 406,000 [2],[3]   406,000 [2],[3]     371,000 [5],[6]            
Investment, Identifier [Axis]: Apidos CLO XXIV, Series 2016-24A | Subordinated Structured Notes                        
Schedule of Investments [Line Items]                        
Fair Value [5],[11]           2,755,000            
Investment, Identifier [Axis]: Application Boot Camp LLC | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 300,000 [3]   300,000 [3]     279,000 [6]            
Investment, Identifier [Axis]: Application Boot Camp LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,217,000 [3],[12],[13]   1,217,000 [3],[12],[13]     1,201,000 [6],[8],[9]            
Investment, Identifier [Axis]: Application Boot Camp LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     (6,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Application Boot Camp LLC | Subordinated Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 83,000 [3]   83,000 [3]     82,000 [6]            
Investment, Identifier [Axis]: Aptus 1829. GmbH | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: Aptus 1829. GmbH | Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value 58,000 [2],[3],[18]   58,000 [2],[3],[18]     68,000 [5],[6],[10]            
Investment, Identifier [Axis]: Apus Bidco Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[9],[27]           3,875,000            
Investment, Identifier [Axis]: Arc Education | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 967,000 [2],[3],[13],[14],[24]   967,000 [2],[3],[13],[14],[24]     962,000 [5],[6],[7],[9],[23]            
Investment, Identifier [Axis]: Arch Global Precision LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 8,264,000 [3],[12],[13]   8,264,000 [3],[12],[13]     8,376,000 [6],[8],[9]            
Investment, Identifier [Axis]: Archimede | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,771,000 [2],[3],[13],[15]   5,771,000 [2],[3],[13],[15]     6,354,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Argus Bidco Limited | Class B Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[18] 3,000   3,000                  
Investment, Identifier [Axis]: Argus Bidco Limited | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: Argus Bidco Limited | Equity Loan Notes                        
Schedule of Investments [Line Items]                        
Fair Value 18,000 [2],[3]   18,000 [2],[3]     27,000 [5],[6]            
Investment, Identifier [Axis]: Argus Bidco Limited | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 1,376,000 [2],[3],[13],[28]   1,376,000 [2],[3],[13],[28]     1,752,000 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Argus Bidco Limited | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 1,957,000 [2],[3],[13],[24]   1,957,000 [2],[3],[13],[24]     2,042,000 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Argus Bidco Limited | First Lien Senior Secured Term Loan 3                        
Schedule of Investments [Line Items]                        
Fair Value 125,000 [2],[3],[13],[25]   125,000 [2],[3],[13],[25]     127,000 [5],[6],[9],[29]            
Investment, Identifier [Axis]: Argus Bidco Limited | Ordinary Shares                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[18] 0   0                  
Investment, Identifier [Axis]: Argus Bidco Limited | Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value 18,000 [2],[3]   18,000 [2],[3]     28,000 [5],[6]            
Investment, Identifier [Axis]: Argus Bidco Limited | Second Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 683,000 [2],[3]   683,000 [2],[3]     974,000 [5],[6]            
Investment, Identifier [Axis]: Argus Bidco Limited | Subordinated Loan                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3] 15,000   15,000                  
Investment, Identifier [Axis]: Argus Intermediate, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,807,000 [3],[12],[13],[14]   3,807,000 [3],[12],[13],[14]     3,732,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Argus Intermediate, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 627,000 [3],[12],[13],[14]   627,000 [3],[12],[13],[14]     616,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Armstrong Transport Group (Pele Buyer, LLC) | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [6],[9],[29]           6,407,000            
Investment, Identifier [Axis]: Armstrong Transport Group (Pele Buyer, LLC) | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [6],[7],[9],[29]           (3,000)            
Investment, Identifier [Axis]: Armstrong Transport Group, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] 7,107,000   7,107,000                  
Investment, Identifier [Axis]: Armstrong Transport Group, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] 448,000   448,000                  
Investment, Identifier [Axis]: Artemis Bidco Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 623,000 [2],[3],[13],[14],[15]   623,000 [2],[3],[13],[14],[15]     618,000 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: Astra Bidco Limited | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 437,000 [2],[3],[13],[15]   437,000 [2],[3],[13],[15]     449,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Astra Bidco Limited | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 2,569,000 [2],[3],[13],[28]   2,569,000 [2],[3],[13],[28]     2,604,000 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Auxi International | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 1,559,000 [2],[3],[13],[15]   1,559,000 [2],[3],[13],[15]     1,562,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Auxi International | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 866,000 [2],[3],[13],[22]   866,000 [2],[3],[13],[22]     856,000 [5],[6],[9],[26]            
Investment, Identifier [Axis]: Avance Clinical Bidco Pty Ltd | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,671,000 [2],[3],[13],[30]   1,671,000 [2],[3],[13],[30]     1,609,000 [5],[6],[7],[9],[31]            
Investment, Identifier [Axis]: Azalea Buyer, Inc. | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 340,000 [3],[18]   340,000 [3],[18]     304,000 [6],[10]            
Investment, Identifier [Axis]: Azalea Buyer, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,713,000 [3],[13],[17]   4,713,000 [3],[13],[17]     4,738,000 [6],[9],[19]            
Investment, Identifier [Axis]: Azalea Buyer, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[13],[14],[17]   0 [3],[13],[14],[17]     0 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Azalea Buyer, Inc. | Subordinated Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,165,000 [3]   2,165,000 [3]     2,042,000 [6]            
Investment, Identifier [Axis]: BCTS Parent, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[14],[32] 1,215,000   1,215,000                  
Investment, Identifier [Axis]: BCTS Parent, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[14],[32] 245,000   245,000                  
Investment, Identifier [Axis]: BKF Buyer, Inc. | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 1,205,000 [3],[18]   1,205,000 [3],[18]     1,145,000 [6],[10]            
Investment, Identifier [Axis]: BKF Buyer, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,120,000 [3],[13],[14],[17]   4,120,000 [3],[13],[14],[17]     7,988,000 [6],[9],[19]            
Investment, Identifier [Axis]: BKF Buyer, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (40,000) [3],[13],[14],[17]   (40,000) [3],[13],[14],[17]     (33,000) [6],[7],[9],[19]            
Investment, Identifier [Axis]: BLI Buyer, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,548,000 [3],[12],[13],[14]   2,548,000 [3],[12],[13],[14]     2,547,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: BLI Buyer, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 138,000 [3],[12],[13],[14]   138,000 [3],[12],[13],[14]     (6,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: BNI Global, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 10,267,000 [3],[13],[33]   10,267,000 [3],[13],[33]     10,598,000 [6],[9],[34]            
Investment, Identifier [Axis]: BPG Holdings IV Corp | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 11,575,000 [3],[12],[13]   11,575,000 [3],[12],[13]     11,347,000 [6],[8],[9]            
Investment, Identifier [Axis]: Balaena Maritime (UK) Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[22] 19,513,000   19,513,000                  
Investment, Identifier [Axis]: Balaena Maritime (UK) Limited | Warrants                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[18] 0   0                  
Investment, Identifier [Axis]: Bariacum S.A. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[15],[20] 0   0                  
Investment, Identifier [Axis]: Bariacum S.A. | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[9],[16],[21]           655,000            
Investment, Identifier [Axis]: Bariacum S.A. | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[9],[16]           47,000            
Investment, Identifier [Axis]: Bariacum S.A. | First Lien Senior Secured Term Loan 3                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[9],[16]           376,000            
Investment, Identifier [Axis]: Basin Innovation Group, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 7,952,000 [3],[13],[17]   7,952,000 [3],[13],[17]     7,665,000 [6],[7],[9],[29]            
Investment, Identifier [Axis]: Basin Innovation Group, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (17,000) [3],[13],[14],[17]   (17,000) [3],[13],[14],[17]     0 [6],[7],[9],[29]            
Investment, Identifier [Axis]: Beyond Risk Management, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [6],[7],[8],[9]           1,775,000            
Investment, Identifier [Axis]: Bidwax | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 7,971,000 [2],[3],[13],[24]   7,971,000 [2],[3],[13],[24]     8,188,000 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Biolam Group | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [36] 1,312,000 [2],[3],[13],[20],[24],[35]   1,312,000 [2],[3],[13],[20],[24],[35]     1,731,000 [5],[6],[9],[21],[23],[37]            
Investment, Identifier [Axis]: Biolam Group | Ordinary Shares                        
Schedule of Investments [Line Items]                        
Fair Value 0 [2],[3],[18],[35]   0 [2],[3],[18],[35]     0 [5],[6],[10],[37]            
Investment, Identifier [Axis]: Biolam | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [38]           1,731,000   $ 0        
Investment, Identifier [Axis]: Biolam | Ordinary Shares                        
Schedule of Investments [Line Items]                        
Fair Value           0   0        
Investment, Identifier [Axis]: Bishop Street Underwriters, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,733,000 [3],[13],[14],[17]   4,733,000 [3],[13],[14],[17]     4,830,000 [6],[9],[19]            
Investment, Identifier [Axis]: Bishop Street Underwriters, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 272,000 [3]   272,000 [3]     361,000 [6],[10]            
Investment, Identifier [Axis]: Bitly, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,287,000 [3],[13],[17]   2,287,000 [3],[13],[17]     4,763,000 [6],[8],[9]            
Investment, Identifier [Axis]: Bitly, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (1,000) [3],[13],[14],[17]   (1,000) [3],[13],[14],[17]     (2,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Black Angus Steakhouses, LLC | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [39]           0   0        
Investment, Identifier [Axis]: Black Angus Steakhouses, LLC | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [39]           0   2,744,000        
Investment, Identifier [Axis]: Black Angus Steakhouses, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value           0   0        
Investment, Identifier [Axis]: Bounteous, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,029,000 [3],[12],[13]   4,029,000 [3],[12],[13]     4,064,000 [6],[9],[19]            
Investment, Identifier [Axis]: Breeze Aviation Group Inc | Second Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 2,230,000 [3],[12],[13]   2,230,000 [3],[12],[13]     2,361,000 [6],[8],[9]            
Investment, Identifier [Axis]: Breeze Aviation Group Inc | Second Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 2,256,000 [3],[12],[13]   2,256,000 [3],[12],[13]     2,385,000 [6],[8],[9]            
Investment, Identifier [Axis]: Breeze Aviation Group Inc | Second Lien Senior Secured Term Loan 3                        
Schedule of Investments [Line Items]                        
Fair Value 2,256,000 [3],[12],[13]   2,256,000 [3],[12],[13]     2,386,000 [6],[8],[9]            
Investment, Identifier [Axis]: Breeze Aviation Group Inc | Second Lien Senior Secured Term Loan 4                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13] 2,431,000   2,431,000                  
Investment, Identifier [Axis]: Breeze Aviation Group Inc | Second Lien Senior Secured Term Loan 5                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13] 2,431,000   2,431,000                  
Investment, Identifier [Axis]: Breeze Aviation Group Inc | Second Lien Senior Secured Term Loan 6                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13] 2,431,000   2,431,000                  
Investment, Identifier [Axis]: Bridger Aerospace Group Holdings, LLC | Preferred Stock- Series C                        
Schedule of Investments [Line Items]                        
Fair Value 16,984,000 [3]   16,984,000 [3]     16,336,000 [6]            
Investment, Identifier [Axis]: BrightSign LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,922,000 [3],[13],[17]   4,922,000 [3],[13],[17]     5,023,000 [6],[9],[19]            
Investment, Identifier [Axis]: BrightSign LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 1,484,000 [3]   1,484,000 [3]     1,384,000 [6]            
Investment, Identifier [Axis]: BrightSign LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (20,000) [3],[13],[14],[17]   (20,000) [3],[13],[14],[17]     997,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: British Engineering Services Holdco Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 14,785,000 [2],[3],[13],[28]   14,785,000 [2],[3],[13],[28]     13,936,000 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Broadstone Group UK LTD | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,829,000 [2],[3],[13],[14],[28]   1,829,000 [2],[3],[13],[14],[28]     1,731,000 [5],[6],[7],[9],[27]            
Investment, Identifier [Axis]: Broadway Buyer, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,132,000 [3],[12],[13],[14]   2,132,000 [3],[12],[13],[14]     2,136,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Broadway Buyer, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 387,000 [3],[18]   387,000 [3],[18]     312,000 [6],[10]            
Investment, Identifier [Axis]: Broadway Buyer, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 108,000 [3],[12],[13],[14]   108,000 [3],[12],[13],[14]     (10,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Brown Machine Group Holdings, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,288,000 [3],[12],[13]   5,288,000 [3],[12],[13]     5,513,000 [6],[8],[9]            
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation | LP Units                        
Schedule of Investments [Line Items]                        
Fair Value 409,000 [3],[18]   409,000 [3],[18]     334,000 [6],[10]            
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation | Second Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,159,000 [3],[12],[13]   4,159,000 [3],[12],[13]     3,986,000 [6],[8],[9]            
Investment, Identifier [Axis]: CCFF Buyer, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,990,000 [3],[12],[13],[14]   5,990,000 [3],[12],[13],[14]     5,953,000 [6],[7],[9],[29]            
Investment, Identifier [Axis]: CCFF Buyer, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 267,000 [3],[18]   267,000 [3],[18]     262,000 [6],[10]            
Investment, Identifier [Axis]: CCFF Buyer, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (5,000) [3],[12],[13],[14]   (5,000) [3],[12],[13],[14]     (8,000) [6],[7],[9],[29]            
Investment, Identifier [Axis]: CEC Entertainment, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,391,000 [3],[12],[13]   3,391,000 [3],[12],[13]     3,429,000 [6],[8],[9]            
Investment, Identifier [Axis]: CGI Parent, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 13,382,000 [3],[12],[13]   13,382,000 [3],[12],[13]     13,515,000 [6],[8],[9]            
Investment, Identifier [Axis]: CGI Parent, LLC | Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value 1,647,000 [3],[18]   1,647,000 [3],[18]     1,947,000 [6],[10]            
Investment, Identifier [Axis]: CGI Parent, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (7,000) [3],[12],[13],[14]   (7,000) [3],[12],[13],[14]     0 [6],[7],[8],[9]            
Investment, Identifier [Axis]: CH Buyer, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 870,000 [3],[12],[13]   870,000 [3],[12],[13]     872,000 [6],[8],[9]            
Investment, Identifier [Axis]: CH Buyer, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 72,000 [3],[18]   72,000 [3],[18]     78,000 [6],[10]            
Investment, Identifier [Axis]: CH Buyer, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     0 [6],[7],[8],[9]            
Investment, Identifier [Axis]: CM Acquisitions Holdings Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 6,649,000 [3],[12],[13]   6,649,000 [3],[12],[13]     11,452,000 [6],[9],[29]            
Investment, Identifier [Axis]: CMT Opco Holding, LLC (Concept Machine) | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13] 4,149,000   4,149,000                  
Investment, Identifier [Axis]: CMT Opco Holding, LLC (Concept Machine) | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [6],[8],[9]           3,489,000            
Investment, Identifier [Axis]: CMT Opco Holding, LLC (Concept Machine) | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [6],[8],[9]           568,000            
Investment, Identifier [Axis]: CMT Opco Holding, LLC (Concept Machine) | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 1,779,000 [3],[18]   1,779,000 [3],[18]     1,518,000 [6],[10]            
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 10,946,000 [3],[12],[13]   10,946,000 [3],[12],[13]     11,014,000 [6],[8],[9]            
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC | First Out Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 2,577,000 [3],[12],[13]   2,577,000 [3],[12],[13]     2,400,000 [6],[8],[9]            
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC | First Out Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 932,000 [3],[12],[13]   932,000 [3],[12],[13]     881,000 [6],[8],[9]            
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC | Last In First Out Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,229,000 [3],[12],[13]   5,229,000 [3],[12],[13]     4,870,000 [6],[8],[9]            
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC | Second Out Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 730,000 [3],[12],[13]   730,000 [3],[12],[13]     683,000 [6],[8],[9]            
Investment, Identifier [Axis]: CTS US Bidco, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,823,000 [2],[3],[12],[13]   3,823,000 [2],[3],[12],[13]     3,717,000 [5],[6],[8],[9]            
Investment, Identifier [Axis]: CW Group Holdings, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,147,000 [3],[12],[13],[14]   5,147,000 [3],[12],[13],[14]     5,173,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: CW Group Holdings, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 487,000 [3],[18]   487,000 [3],[18]     500,000 [6],[10]            
Investment, Identifier [Axis]: Caldwell & Gregory LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 14,691,000 [3],[12],[13],[14]   14,691,000 [3],[12],[13],[14]     14,308,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Caldwell & Gregory LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     (22,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | Class A Equity                        
Schedule of Investments [Line Items]                        
Fair Value 0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | Class C - Warrants                        
Schedule of Investments [Line Items]                        
Fair Value 0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | Class X Equity                        
Schedule of Investments [Line Items]                        
Fair Value 0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 121,000 [2],[3],[13],[20],[40]   121,000 [2],[3],[13],[20],[40]     161,000 [5],[6],[9],[21],[41]            
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | Super Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 229,000 [2],[3],[14]   229,000 [2],[3],[14]     268,000 [5],[6],[7]            
Investment, Identifier [Axis]: Cascade Residential Services LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,212,000 [3],[13],[17]   4,212,000 [3],[13],[17]     4,537,000 [6],[8],[9]            
Investment, Identifier [Axis]: Cascade Residential Services LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 172,000 [3],[13],[14],[17]   172,000 [3],[13],[14],[17]     (5,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Catawba River Limited | Structured - Junior Note                        
Schedule of Investments [Line Items]                        
Fair Value 2,217,000 [2],[3],[18]   2,217,000 [2],[3],[18]     1,868,000 [5],[6],[10]            
Investment, Identifier [Axis]: Celebration Bidco, LLC | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 10,355,000 [3],[18],[35]   10,355,000 [3],[18],[35]     8,925,000 [6],[10],[37]   11,262,000        
Investment, Identifier [Axis]: Celebration Bidco, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 8,578,000 [3],[12],[13],[35]   8,578,000 [3],[12],[13],[35]     8,463,000 [6],[8],[37]   6,414,000        
Investment, Identifier [Axis]: Ceres Pharma NV | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 3,525,000 [2],[3],[13],[24]   3,525,000 [2],[3],[13],[24]     3,593,000 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Ceres Pharma NV | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 648,000 [2],[3],[13],[24]   648,000 [2],[3],[13],[24]     666,000 [5],[6],[7],[9],[23]            
Investment, Identifier [Axis]: Cherry Bekaert Advisory LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] 9,175,000   9,175,000                  
Investment, Identifier [Axis]: Cherry Bekaert Advisory LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13] 966,000   966,000                  
Investment, Identifier [Axis]: CloudOne Digital Corp. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 12,125,000 [3],[12],[13]   12,125,000 [3],[12],[13]     12,160,000 [6],[8],[9]            
Investment, Identifier [Axis]: CloudOne Digital Corp. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (24,000) [3],[12],[13],[14]   (24,000) [3],[12],[13],[14]     (29,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 20,546,000 [3],[18],[35]   20,546,000 [3],[18],[35]     19,983,000 [6],[10],[37]   16,852,000        
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC | Subordinated Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 16,001,000 [3],[35]   16,001,000 [3],[35]     15,891,000 [6],[37]   15,770,000        
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC | Subordinated Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 7,377,000 [3],[35]   7,377,000 [3],[35]     7,327,000 [6],[37]   7,271,000        
Investment, Identifier [Axis]: Cobham Slip Rings SAS | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,303,000 [2],[3],[12],[13]   1,303,000 [2],[3],[12],[13]     1,303,000 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Coherus Biosciences, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,923,000 [3],[12],[13]   3,923,000 [3],[12],[13]     3,963,000 [6],[8],[9]            
Investment, Identifier [Axis]: Coherus Biosciences, Inc. | Royalty Rights                        
Schedule of Investments [Line Items]                        
Fair Value 1,459,000 [3]   1,459,000 [3]     1,486,000 [6]            
Investment, Identifier [Axis]: Command Alkon (Project Potter Buyer, LLC) | Class B Partnership Units                        
Schedule of Investments [Line Items]                        
Fair Value 163,000 [3],[18]   163,000 [3],[18]     187,000 [6],[10]            
Investment, Identifier [Axis]: Compass Precision, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 393,000 [3],[18]   393,000 [3],[18]     383,000 [6],[10]            
Investment, Identifier [Axis]: Compass Precision, LLC | Senior Subordinated Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 658,000 [3]   658,000 [3]     655,000 [6]            
Investment, Identifier [Axis]: Comply365, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13] 10,721,000   10,721,000                  
Investment, Identifier [Axis]: Comply365, LLC | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [6],[8],[9]           7,505,000            
Investment, Identifier [Axis]: Comply365, LLC | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [6],[8],[9]           3,278,000            
Investment, Identifier [Axis]: Comply365, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 290,000 [3],[12],[13],[14]   290,000 [3],[12],[13],[14]     293,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Contabo Finco S.À R.L | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[15] 5,324,000   5,324,000                  
Investment, Identifier [Axis]: Contabo FincoS.À R.L | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[9],[16]           5,469,000            
Investment, Identifier [Axis]: Coyo Uprising GmbH | Class A Units                        
Schedule of Investments [Line Items]                        
Fair Value 242,000 [2],[3],[18]   242,000 [2],[3],[18]     243,000 [5],[6],[10]            
Investment, Identifier [Axis]: Coyo Uprising GmbH | Class B Units                        
Schedule of Investments [Line Items]                        
Fair Value 300,000 [2],[3],[18]   300,000 [2],[3],[18]     420,000 [5],[6],[10]            
Investment, Identifier [Axis]: Coyo Uprising GmbH | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,332,000 [2],[3],[13],[14],[24]   5,332,000 [2],[3],[13],[14],[24]     5,477,000 [5],[6],[7],[9],[23]            
Investment, Identifier [Axis]: Credit Key Funding II LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,630,000 [3],[13],[14],[17]   5,630,000 [3],[13],[14],[17]     4,748,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Credit Key Funding II LLC | Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value 2,694,000 [3]   2,694,000 [3]     2,557,000 [6]            
Investment, Identifier [Axis]: Credit Key Funding II LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 427,000 [3],[13],[14],[17]   427,000 [3],[13],[14],[17]     (9,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Credit Key Funding II LLC | Warrants                        
Schedule of Investments [Line Items]                        
Fair Value 17,000 [3],[18]   17,000 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: DAWGS Intermediate Holdings Co. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,780,000 [3],[12],[13]   1,780,000 [3],[12],[13]     1,791,000 [6],[8],[9]            
Investment, Identifier [Axis]: DAWGS Intermediate Holdings Co. | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 463,000 [3],[18]   463,000 [3],[18]     409,000 [6],[10]            
Investment, Identifier [Axis]: DAWGS Intermediate Holdings Co. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 277,000 [3],[12],[13],[14]   277,000 [3],[12],[13],[14]     339,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: DISA Holdings Corp. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 6,776,000 [3],[12],[13]   6,776,000 [3],[12],[13]     6,880,000 [6],[8],[9]            
Investment, Identifier [Axis]: DISA Holdings Corp. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (4,000) [3],[12],[13],[14]   (4,000) [3],[12],[13],[14]     114,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Dane Street, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] 1,125,000   1,125,000                  
Investment, Identifier [Axis]: Dane Street, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] (5,000)   (5,000)                  
Investment, Identifier [Axis]: DataServ Integrations, LLC | Preferred Units                        
Schedule of Investments [Line Items]                        
Fair Value 237,000 [3],[18]   237,000 [3],[18]     235,000 [6],[10]            
Investment, Identifier [Axis]: David Wood Baking UK Ltd | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 872,000 [2],[3],[13],[28]   872,000 [2],[3],[13],[28]     862,000 [5],[6],[9],[27]            
Investment, Identifier [Axis]: DecksDirect, LLC | Class A Units                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: DecksDirect, LLC | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: DecksDirect, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [6],[8],[9]           988,000            
Investment, Identifier [Axis]: DecksDirect, LLC | Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     0 [6]            
Investment, Identifier [Axis]: DecksDirect, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [6],[7],[8],[9]           168,000            
Investment, Identifier [Axis]: Discovery Buyer, L.P. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 16,892,000 [3],[12],[13],[14]   16,892,000 [3],[12],[13],[14]     16,904,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Discovery Buyer, L.P. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (12,000) [3],[12],[13],[14]   (12,000) [3],[12],[13],[14]     (16,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Diversified Packaging Holdings LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 550,000 [3]   550,000 [3]     456,000 [6]            
Investment, Identifier [Axis]: Diversified Packaging Holdings LLC | Second Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,031,000 [3]   1,031,000 [3]     807,000 [6]            
Investment, Identifier [Axis]: Dryden 49 Senior Loan Fund, Series 2017-49A | Subordinated Structured Notes                        
Schedule of Investments [Line Items]                        
Fair Value [5],[10],[11]           2,000            
Investment, Identifier [Axis]: Dunlipharder B.V. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,000,000 [2],[3],[12],[13]   1,000,000 [2],[3],[12],[13]     1,000,000 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Durare Bidco, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,797,000 [3],[12],[13],[14]   1,797,000 [3],[12],[13],[14]     1,392,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Durare Bidco, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (12,000) [3],[12],[13],[14]   (12,000) [3],[12],[13],[14]     (8,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Dwyer Instruments, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 14,366,000 [3],[12],[13]   14,366,000 [3],[12],[13]     14,476,000 [6],[8],[9]            
Investment, Identifier [Axis]: EB Development | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[7],[9],[16]           2,056,000            
Investment, Identifier [Axis]: EB Development | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[15] 1,972,000   1,972,000                  
Investment, Identifier [Axis]: EB Development | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[12],[13] 1,527,000   1,527,000                  
Investment, Identifier [Axis]: EFC International | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 212,000 [3],[18]   212,000 [3],[18]     217,000 [6],[10]            
Investment, Identifier [Axis]: EFC International | Senior Unsecured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 828,000 [3]   828,000 [3]     820,000 [6]            
Investment, Identifier [Axis]: EMI Porta Holdco LLC | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 2,948,000 [3],[18],[35]   2,948,000 [3],[18],[35]     0            
Investment, Identifier [Axis]: EMI Porta Holdco LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,656,000 [3],[12],[13],[35]   4,656,000 [3],[12],[13],[35]     10,985,000 [6],[8],[9]            
Investment, Identifier [Axis]: EMI Porta Holdco LLC | First Lien Senior Secured Term Loan 2026                        
Schedule of Investments [Line Items]                        
Fair Value 4,656,000   4,656,000     0            
Investment, Identifier [Axis]: EMI Porta Holdco LLC | Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value 2,369,000 [3],[35]   2,369,000 [3],[35]     0            
Investment, Identifier [Axis]: EMI Porta Holdco LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[12],[13],[14],[35]   0 [3],[12],[13],[14],[35]     513,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: EMI Porta Holdco LLC | Revolver 2026                        
Schedule of Investments [Line Items]                        
Fair Value 0   0     0            
Investment, Identifier [Axis]: ERS Holdings, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[14],[17] 1,930,000   1,930,000                  
Investment, Identifier [Axis]: ERS Holdings, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value [3],[18] 42,000   42,000                  
Investment, Identifier [Axis]: ERS Holdings, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[14],[17] (2,000)   (2,000)                  
Investment, Identifier [Axis]: EZ SMBO Bidco | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 832,000 [2],[3],[13],[14],[24]   832,000 [2],[3],[13],[14],[24]     916,000 [5],[6],[9],[41]            
Investment, Identifier [Axis]: EZ SMBO Bidco | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 883,000 [2],[3],[13],[40]   883,000 [2],[3],[13],[40]     561,000 [5],[6],[7],[9],[23]            
Investment, Identifier [Axis]: EZ SMBO Bidco | First Lien Senior Secured Term Loan 3                        
Schedule of Investments [Line Items]                        
Fair Value 740,000 [2],[3],[13],[24]   740,000 [2],[3],[13],[24]     675,000 [5],[6]            
Investment, Identifier [Axis]: EZ SMBO Bidco | Subordinated Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[15] 329,000   329,000                  
Investment, Identifier [Axis]: Echo Global Logistics, Inc. | Partnership Equity                        
Schedule of Investments [Line Items]                        
Fair Value 966,000 [3],[18]   966,000 [3],[18]     351,000 [6],[10]            
Investment, Identifier [Axis]: Echo Global Logistics, Inc. | Second Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [6],[9],[19]           9,450,000            
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC | First Lien Senior Secured Loan                        
Schedule of Investments [Line Items]                        
Fair Value         $ 5,000,000.0              
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC | First Lien Senior Secured Loan | Funded                        
Schedule of Investments [Line Items]                        
Fair Value 3,300,000   3,300,000                  
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value                   $ 4,500,000    
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC | Revolver | Funded                        
Schedule of Investments [Line Items]                        
Fair Value 12,900,000   12,900,000     9,900,000            
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC | Revolver | Unfunded                        
Schedule of Investments [Line Items]                        
Fair Value                 $ 22,700,000 13,600,000    
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC | Second Lien Senior Secured Loan                        
Schedule of Investments [Line Items]                        
Fair Value                   $ 89,800,000    
Investment, Identifier [Axis]: Eclipse Business Capital, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,333,000 [3],[13],[14],[17],[35]   3,333,000 [3],[13],[14],[17],[35]     0            
Investment, Identifier [Axis]: Eclipse Business Capital, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 139,539,000 [3],[35]   139,539,000 [3],[35]     139,539,000 [6],[37]            
Investment, Identifier [Axis]: Eclipse Business Capital, LLC | LLC units                        
Schedule of Investments [Line Items]                        
Fair Value           139,539,000   136,855,000        
Investment, Identifier [Axis]: Eclipse Business Capital, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 12,879,000 [3],[13],[14],[17],[35]   12,879,000 [3],[13],[14],[17],[35]     9,909,000 [6],[7],[19],[37]   10,091,000        
Investment, Identifier [Axis]: Eclipse Business Capital, LLC | Second Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,546,000 [3],[35]   4,546,000 [3],[35]     4,546,000 [6],[37]   4,545,000        
Investment, Identifier [Axis]: Electric Equipment & Engineering Co. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 722,000 [3]   722,000 [3]     318,000 [6]            
Investment, Identifier [Axis]: Electric Equipment & Engineering Co. | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 356,000 [3],[18]   356,000 [3],[18]     354,000 [6],[10]            
Investment, Identifier [Axis]: Entact Environmental Services, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,980,000 [3],[12],[13]   5,980,000 [3],[12],[13]     6,230,000 [6],[8],[9]            
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 596,000 [2],[3],[13],[24]   596,000 [2],[3],[13],[24]     581,000 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 300,000 [2],[3],[12],[13]   300,000 [2],[3],[12],[13]     284,000 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | First Lien Senior Secured Term Loan 3                        
Schedule of Investments [Line Items]                        
Fair Value 930,000 [2],[3],[13],[28]   930,000 [2],[3],[13],[28]     894,000 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | Second Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[9],[23]           0            
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | Subordinated Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[15],[20] 0   0                  
Investment, Identifier [Axis]: Events Software BidCo Pty Ltd | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,585,000 [2],[3],[13],[30]   1,585,000 [2],[3],[13],[30]     1,470,000 [5],[6],[7],[9],[31]            
Investment, Identifier [Axis]: Everest Midco Limited | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[15] 777,000   777,000                  
Investment, Identifier [Axis]: Everest Midco Limited | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[12],[13],[14] 3,191,000   3,191,000                  
Investment, Identifier [Axis]: Everest Midco Limited | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[12],[13],[14] (7,000)   (7,000)                  
Investment, Identifier [Axis]: Expert Institute Group Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,087,000 [3],[13],[14],[25]   1,087,000 [3],[13],[14],[25]     1,071,000 [6],[7],[9],[29]            
Investment, Identifier [Axis]: Expert Institute Group Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[13],[14],[25]   0 [3],[13],[14],[25]     (5,000) [6],[7],[9],[29]            
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,037,000 [3],[12],[13]   3,037,000 [3],[12],[13]     3,096,000 [6],[8],[9]            
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (12,000) [3],[12],[13],[14]   (12,000) [3],[12],[13],[14]     (10,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: FL Hawk Intermediate Holdings, Inc. (f/k/a Fineline Technologies, Inc.) | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[25] 6,885,000   6,885,000                  
Investment, Identifier [Axis]: FL Hawk Intermediate Holdings, Inc. (f/k/a/ Fineline Technologies, Inc.) | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [6],[9],[19]           6,903,000            
Investment, Identifier [Axis]: FSS Buyer LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,230,000 [3],[13],[17]   4,230,000 [3],[13],[17]     9,337,000 [6],[9],[19]            
Investment, Identifier [Axis]: FSS Buyer LLC | LP Interest                        
Schedule of Investments [Line Items]                        
Fair Value 14,000 [3],[18]   14,000 [3],[18]     18,000 [6],[10]            
Investment, Identifier [Axis]: FSS Buyer LLC | LP Units                        
Schedule of Investments [Line Items]                        
Fair Value 63,000 [3],[18]   63,000 [3],[18]     78,000 [6],[10]            
Investment, Identifier [Axis]: FSS Buyer LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[14],[17] 0   0                  
Investment, Identifier [Axis]: Faraday | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,741,000 [2],[3],[13],[15]   1,741,000 [2],[3],[13],[15]     1,787,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Featherstone Bidco Limited | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 1,009,000 [2],[3],[12],[13]   1,009,000 [2],[3],[12],[13]     1,009,000 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Featherstone Bidco Limited | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 1,289,000 [2],[3],[13],[28]   1,289,000 [2],[3],[13],[28]     1,307,000 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Ferrellgas L.P. | Opco Preferred Units                        
Schedule of Investments [Line Items]                        
Fair Value 3,030,000 [3]   3,030,000 [3]     3,030,000 [6]            
Investment, Identifier [Axis]: FinThrive Software Intermediate Holdings Inc. | Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value 485,000 [3],[18]   485,000 [3],[18]     5,896,000 [6]            
Investment, Identifier [Axis]: Finaxy Holding | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,263,000 [2],[3],[13],[24]   4,263,000 [2],[3],[13],[24]     4,369,000 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Finexvet | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,894,000 [2],[3],[13],[24]   4,894,000 [2],[3],[13],[24]     5,077,000 [5],[6],[9],[23]            
Investment, Identifier [Axis]: FitzMark Buyer, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,994,000 [3],[13],[17]   3,994,000 [3],[13],[17]     3,994,000 [6],[9],[19]            
Investment, Identifier [Axis]: Five Star Holding LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 720,000 [3],[18]   720,000 [3],[18]     784,000 [6],[10]            
Investment, Identifier [Axis]: Five Star Holding LLC | Second Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 13,692,000 [3],[12],[13]   13,692,000 [3],[12],[13]     13,692,000 [6],[8],[9]            
Investment, Identifier [Axis]: Flywheel Holdings Segregated Portfolio 2025-2 | LP Interest                        
Schedule of Investments [Line Items]                        
Fair Value 4,004,000 [2],[3],[18]   4,004,000 [2],[3],[18]     2,861,000 [5],[6],[10]            
Investment, Identifier [Axis]: Flywheel Re Segregated Portfolio 2022-4 | Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value 1,527,000 [2],[3]   1,527,000 [2],[3]     2,970,000 [5],[6]            
Investment, Identifier [Axis]: Footco 40 Limited | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 232,000 [2],[3],[13],[15]   232,000 [2],[3],[13],[15]     247,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Footco 40 Limited | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 1,634,000 [2],[3],[13],[22]   1,634,000 [2],[3],[13],[22]     1,714,000 [5],[6],[9],[26]            
Investment, Identifier [Axis]: Forest Buyer, LLC | Class A LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 124,000 [3]   124,000 [3]     140,000 [6]            
Investment, Identifier [Axis]: Forest Buyer, LLC | Class B LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 54,000 [3],[18]   54,000 [3],[18]     61,000 [6],[10]            
Investment, Identifier [Axis]: Forest Buyer, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,648,000 [3],[12],[13]   5,648,000 [3],[12],[13]     6,054,000 [6],[8],[9]            
Investment, Identifier [Axis]: Forest Buyer, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (20,000) [3],[12],[13],[14]   (20,000) [3],[12],[13],[14]     (2,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Forge Borrower, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] 1,236,000   1,236,000                  
Investment, Identifier [Axis]: Forge Borrower, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] (7,000)   (7,000)                  
Investment, Identifier [Axis]: FragilePak LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,473,000 [3],[12],[13]   4,473,000 [3],[12],[13]     4,496,000 [6],[8],[9]            
Investment, Identifier [Axis]: FragilePak LLC | Partnership Units                        
Schedule of Investments [Line Items]                        
Fair Value 676,000 [3],[18]   676,000 [3],[18]     666,000 [6],[10]            
Investment, Identifier [Axis]: G 3 Chickadee Purchaser, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13] 11,547,000   11,547,000                  
Investment, Identifier [Axis]: G-3 Chickadee Purchaser, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [6],[8],[9]           11,667,000            
Investment, Identifier [Axis]: GB Eagle Buyer, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 7,048,000 [3],[12],[13]   7,048,000 [3],[12],[13]     8,382,000 [6],[8],[9]            
Investment, Identifier [Axis]: GB Eagle Buyer, Inc. | Partnership Units                        
Schedule of Investments [Line Items]                        
Fair Value 6,371,000 [3],[18]   6,371,000 [3],[18]     2,025,000 [6],[10]            
Investment, Identifier [Axis]: GB Eagle Buyer, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     (23,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: GCDL LLC | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 306,000 [3]   306,000 [3]     355,000 [6]            
Investment, Identifier [Axis]: GCDL LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 612,000 [3],[12],[13]   612,000 [3],[12],[13]     501,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: GCDL LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     (1,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: GMES LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 8,298,000 [3],[12],[13],[14]   8,298,000 [3],[12],[13],[14]     7,609,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: GMES LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 194,000 [3],[12],[13],[14]   194,000 [3],[12],[13],[14]     90,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: GMF Parent, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,205,000 [3],[12],[13],[14]   2,205,000 [3],[12],[13],[14]     2,200,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: GMF Parent, Inc. | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 113,000 [3],[18]   113,000 [3],[18]     138,000 [6],[10]            
Investment, Identifier [Axis]: GMF Parent, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 39,000 [3],[12],[13],[14]   39,000 [3],[12],[13],[14]     (5,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: GPNZ II GmbH | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: GPNZ II GmbH | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 0 [2],[3],[13],[20],[33]   0 [2],[3],[13],[20],[33]     239,000 [5],[6],[7]            
Investment, Identifier [Axis]: GPNZ II GmbH | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 14,000 [2],[3],[14]   14,000 [2],[3],[14]     0 [5],[6],[9],[21],[34]            
Investment, Identifier [Axis]: Global Academic Group Limited | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 2,802,000 [2],[3],[13],[30]   2,802,000 [2],[3],[13],[30]     2,697,000 [5],[6],[9],[31]            
Investment, Identifier [Axis]: Global Academic Group Limited | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 625,000 [2],[3],[13],[42]   625,000 [2],[3],[13],[42]     632,000 [5],[6],[9],[43]            
Investment, Identifier [Axis]: Gojo Industries, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [6],[8],[9]           12,474,000            
Investment, Identifier [Axis]: Greenhill II BV | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,711,000 [2],[3],[13],[14],[15]   1,711,000 [2],[3],[13],[14],[15]     1,762,000 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: Groupe Guemas | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,136,000 [2],[3],[13],[24]   5,136,000 [2],[3],[13],[24]     5,434,000 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Groupe Product Life | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 410,000 [2],[3],[13],[14],[15]   410,000 [2],[3],[13],[14],[15]     447,000 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: HEKA Invest | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,136,000 [2],[3],[13],[15]   5,136,000 [2],[3],[13],[15]     5,501,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: HS Advisory Buyer LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,321,000 [3],[12],[13],[14]   2,321,000 [3],[12],[13],[14]     2,231,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: HS Advisory Buyer LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 274,000 [3],[12],[13],[14]   274,000 [3],[12],[13],[14]     (6,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: HSL Compliance | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,360,000 [2],[3],[13],[14],[22]   3,360,000 [2],[3],[13],[14],[22]     3,061,000 [5],[6],[7],[9],[26]            
Investment, Identifier [Axis]: HTI Technology & Industries | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 10,959,000 [3],[12],[13],[14]   10,959,000 [3],[12],[13],[14]     10,394,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: HTI Technology & Industries | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (8,000) [3],[12],[13],[14]   (8,000) [3],[12],[13],[14]     (72,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: HW Holdco, LLC (Hanley Wood LLC) | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 10,019,000 [3],[12],[13]   10,019,000 [3],[12],[13]     10,132,000 [6],[8],[9]            
Investment, Identifier [Axis]: Haystack Holdings LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 8,777,000 [3],[13],[14],[25]   8,777,000 [3],[13],[14],[25]     6,566,000 [6],[7],[9],[29]            
Investment, Identifier [Axis]: Haystack Holdings LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (8,000) [3],[13],[14],[25]   (8,000) [3],[13],[14],[25]     (1,000) [6],[7],[9],[29]            
Investment, Identifier [Axis]: HeartHealth Bidco Pty Ltd | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 870,000 [2],[3],[13],[14],[30]   870,000 [2],[3],[13],[14],[30]     714,000 [5],[6],[7],[9],[31]            
Investment, Identifier [Axis]: Heartland Veterinary Partners, LLC | Subordinated Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 15,745,000 [3]   15,745,000 [3]     14,690,000 [6]            
Investment, Identifier [Axis]: Heavy Construction Systems Specialists, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 7,110,000 [3],[12],[13]   7,110,000 [3],[12],[13]     7,147,000 [6],[8],[9]            
Investment, Identifier [Axis]: Heavy Construction Systems Specialists, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     0 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Heilbron (f/k/a Sucsez (Bolt Bidco B.V.)) | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,436,000 [2],[3],[13],[33]   3,436,000 [2],[3],[13],[33]     3,521,000 [5],[6],[9],[23]            
Investment, Identifier [Axis]: HemaSource, Inc. | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 156,000 [3],[18]   156,000 [3],[18]     141,000 [6],[10]            
Investment, Identifier [Axis]: HemaSource, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,616,000 [3],[13],[14],[17]   2,616,000 [3],[13],[14],[17]     2,467,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: HemaSource, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 135,000 [3],[13],[14],[17]   135,000 [3],[13],[14],[17]     (18,000) [6],[7],[9],[19]            
Investment, Identifier [Axis]: Herbalife Ltd. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [5],[9],[19]           3,209,000            
Investment, Identifier [Axis]: High Street Buyer Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 290,000 [3],[12],[13],[14]   290,000 [3],[12],[13],[14]     188,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Home Care Assistance, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,160,000 [3],[12],[13]   3,160,000 [3],[12],[13]     3,225,000 [6],[8],[9]            
Investment, Identifier [Axis]: HomeX Services Group LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,070,000 [3],[13],[17]   2,070,000 [3],[13],[17]     1,899,000 [6],[9]            
Investment, Identifier [Axis]: HomeX Services Group LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 64,000 [3],[13],[14],[17]   64,000 [3],[13],[14],[17]     32,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Honour Lane Logistics Holdings Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 6,393,000 [2],[3],[12],[13]   6,393,000 [2],[3],[12],[13]     6,667,000 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Hydratech Holdings, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 8,895,000 [3],[12],[13],[14]   8,895,000 [3],[12],[13],[14]     8,922,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Hydratech Holdings, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 794,000 [3],[12],[13],[14]   794,000 [3],[12],[13],[14]     671,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: ICREDITWORKS LLC | Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value 11,504,000 [3]   11,504,000 [3]     10,842,000 [6]            
Investment, Identifier [Axis]: ICREDITWORKS LLC | Warrants                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: IM Square | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[9],[16]           2,916,000            
Investment, Identifier [Axis]: IM Square | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[15] 1,811,000   1,811,000                  
Investment, Identifier [Axis]: IM Square | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[14],[15] (51,000)   (51,000)                  
Investment, Identifier [Axis]: IMS Services Enterprises, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[14],[17] 7,563,000   7,563,000                  
Investment, Identifier [Axis]: IMS Services Enterprises, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value [3],[18] 295,000   295,000                  
Investment, Identifier [Axis]: IMS Services Enterprises, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[14],[17] 104,000   104,000                  
Investment, Identifier [Axis]: ITI Intermodal, Inc. | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 947,000 [3],[18]   947,000 [3],[18]     961,000 [6],[10]            
Investment, Identifier [Axis]: ITI Intermodal, Inc. | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 11,801,000 [3],[12],[13]   11,801,000 [3],[12],[13]     11,955,000 [6],[8],[9]            
Investment, Identifier [Axis]: ITI Intermodal, Inc. | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 782,000 [3],[12],[13]   782,000 [3],[12],[13]     793,000 [6],[8],[9]            
Investment, Identifier [Axis]: ITI Intermodal, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 226,000 [3],[12],[13],[14]   226,000 [3],[12],[13],[14]     226,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Ice House America, L.L.C. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,409,000 [3],[12],[13],[14]   4,409,000 [3],[12],[13],[14]     4,312,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Ice House America, L.L.C. | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 195,000 [3],[18]   195,000 [3],[18]     174,000 [6],[10]            
Investment, Identifier [Axis]: Ice House America, L.L.C. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 364,000 [3],[12],[13],[14]   364,000 [3],[12],[13],[14]     356,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Infoniqa Holdings GmbH | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,962,000 [2],[3],[13],[24]   2,962,000 [2],[3],[13],[24]     3,086,000 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Innovad Group II BV | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[9],[16]           7,239,000            
Investment, Identifier [Axis]: Innovad Group II BV | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[9],[44]           1,157,000            
Investment, Identifier [Axis]: Integrated Precision Systems, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[14],[17] 6,826,000   6,826,000                  
Investment, Identifier [Axis]: Integrated Precision Systems, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[14],[17] 358,000   358,000                  
Investment, Identifier [Axis]: International Fleet Financing No.2 B.V. | Class C Senior Secured Note                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[7]           8,275,000            
Investment, Identifier [Axis]: International Fleet Financing No.2 B.V. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[14] 8,813,000   8,813,000                  
Investment, Identifier [Axis]: Interstellar Group B.V. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,675,000 [2],[3],[13],[14],[15]   1,675,000 [2],[3],[13],[14],[15]     1,637,000 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: InvoCare Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,233,000 [2],[3],[13],[14],[30]   2,233,000 [2],[3],[13],[14],[30]     2,159,000 [5],[6],[7],[9],[31]            
Investment, Identifier [Axis]: Isolstar Holding NV (IPCOM) | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,661,000 [2],[3],[13],[15]   5,661,000 [2],[3],[13],[15]     5,788,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Jade Bidco Limited (Jane's) | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[9],[23]           1,263,000            
Investment, Identifier [Axis]: Jade Bidco Limited (Jane's) | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[9],[29]           6,526,000            
Investment, Identifier [Axis]: Jocassee Partners LLC                        
Schedule of Investments [Line Items]                        
Total contributed capital 35,000,000   35,000,000     35,000,000            
Investment, Identifier [Axis]: Jocassee Partners LLC | 9.1% Member Interest                        
Schedule of Investments [Line Items]                        
Fair Value 33,180,000 [2],[35],[45]   33,180,000 [2],[35],[45]     37,986,000 [5],[7],[37],[46]            
Investment, Identifier [Axis]: Jocassee Partners LLC, Member Interest                        
Schedule of Investments [Line Items]                        
Fair Value           37,986,000   40,761,000        
Investment, Identifier [Axis]: Jon Bidco Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,965,000 [2],[3],[13],[14],[42]   1,965,000 [2],[3],[13],[14],[42]     1,533,000 [5],[6],[7],[9],[43]            
Investment, Identifier [Axis]: KAMC Holdings Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,202,000 [3],[12],[13]   5,202,000 [3],[12],[13]     5,364,000 [6],[8],[9]            
Investment, Identifier [Axis]: KAMC Holdings Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 140,000 [3],[12],[13],[14]   140,000 [3],[12],[13],[14]     157,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Kanawha Scales & Systems, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 445,000 [3],[12],[13],[14]   445,000 [3],[12],[13],[14]     415,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Kanawha Scales & Systems, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 34,000 [3],[12],[13],[14]   34,000 [3],[12],[13],[14]     24,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Keystone Bidco B.V. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 898,000 [2],[3],[13],[14],[24]   898,000 [2],[3],[13],[14],[24]     931,000 [5],[6],[7],[9],[23]            
Investment, Identifier [Axis]: Keystone Bidco B.V. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[7],[9],[23]           11,000            
Investment, Identifier [Axis]: Kid Distro Holdings, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 12,952,000 [3],[12],[13]   12,952,000 [3],[12],[13]     13,020,000 [6],[9],[29]            
Investment, Identifier [Axis]: Kid Distro Holdings, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 861,000 [3],[18]   861,000 [3],[18]     791,000 [6],[10]            
Investment, Identifier [Axis]: Kite Topco Ltd | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[14],[28] 2,667,000   2,667,000                  
Investment, Identifier [Axis]: L.A. Specialty Produce Co., LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] 6,258,000   6,258,000                  
Investment, Identifier [Axis]: L.A. Specialty Produce Co., LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] (10,000)   (10,000)                  
Investment, Identifier [Axis]: LHS Borrower, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 8,837,000 [3],[13],[17]   8,837,000 [3],[13],[17]     9,019,000 [6],[9],[19]            
Investment, Identifier [Axis]: LHS Borrower, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 193,000 [3],[13],[14],[17]   193,000 [3],[13],[14],[17]     88,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Lambir Bidco Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[7],[9],[23]           2,327,000            
Investment, Identifier [Axis]: Lambir Bidco Limited | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[15] 382,000   382,000                  
Investment, Identifier [Axis]: Lambir Bidco Limited | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[24] 1,849,000   1,849,000                  
Investment, Identifier [Axis]: Lambir Bidco Limited | Second Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,176,000 [2],[3]   2,176,000 [2],[3]     2,164,000 [5],[6]            
Investment, Identifier [Axis]: Lattice Group Holdings Bidco Limited | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 680,000 [2],[3],[13],[14],[25]   680,000 [2],[3],[13],[14],[25]     731,000 [5],[6],[7],[9],[29]            
Investment, Identifier [Axis]: Lattice Group Holdings Bidco Limited | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 205,000 [2],[3],[13],[28]   205,000 [2],[3],[13],[28]     154,000 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Lattice Group Holdings Bidco Limited | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 34,000 [2],[3],[13],[25]   34,000 [2],[3],[13],[25]     18,000 [5],[6],[7],[9],[29]            
Investment, Identifier [Axis]: LeadsOnline, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 9,868,000 [3],[12],[13]   9,868,000 [3],[12],[13]     9,915,000 [6],[8],[9]            
Investment, Identifier [Axis]: LeadsOnline, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 177,000 [3]   177,000 [3]     216,000 [6]            
Investment, Identifier [Axis]: LeadsOnline, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (12,000) [3],[12],[13],[14]   (12,000) [3],[12],[13],[14]     (13,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Lido Purchaser, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] 4,240,000   4,240,000                  
Investment, Identifier [Axis]: Lifestyle Intermediate II, LLC | Class A Common Units                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18],[47]   0 [3],[18],[47]     0 [6],[10],[11]            
Investment, Identifier [Axis]: Lifestyle Intermediate II, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,812,000 [3],[12],[13],[47]   1,812,000 [3],[12],[13],[47]     2,094,000 [6],[8],[9],[11]            
Investment, Identifier [Axis]: Lighthouse Finco SARL | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[15] 699,000   699,000                  
Investment, Identifier [Axis]: Lighthouse Finco SARL | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[14],[22] 1,632,000   1,632,000                  
Investment, Identifier [Axis]: Lockmasters Security Intermediate, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,215,000 [3],[12],[13],[14]   3,215,000 [3],[12],[13],[14]     3,199,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Lockmasters Security Intermediate, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (2,000) [3],[12],[13],[14]   (2,000) [3],[12],[13],[14]     (5,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: London Buyer, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] 11,360,000   11,360,000                  
Investment, Identifier [Axis]: London Buyer, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] (22,000)   (22,000)                  
Investment, Identifier [Axis]: Long Term Care Group, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 8,268,000 [3],[12],[13]   8,268,000 [3],[12],[13]     8,464,000 [6],[8],[9]            
Investment, Identifier [Axis]: M-Personal Protection Management GmbH | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,029,000 [2],[3],[13],[15]   4,029,000 [2],[3],[13],[15]     4,139,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: MB Purchaser, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,763,000 [3],[13],[14],[17]   3,763,000 [3],[13],[14],[17]     3,771,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: MB Purchaser, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 85,000 [3],[18]   85,000 [3],[18]     78,000 [6],[10]            
Investment, Identifier [Axis]: MB Purchaser, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (6,000) [3],[13],[14],[17]   (6,000) [3],[13],[14],[17]     (8,000) [6],[7],[9],[19]            
Investment, Identifier [Axis]: MC Group Ventures Corporation | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 5,296,000 [3],[12],[13]   5,296,000 [3],[12],[13]     4,829,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: MC Group Ventures Corporation | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 4,025,000 [3],[12],[13]   4,025,000 [3],[12],[13]     4,236,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: MC Group Ventures Corporation | Partnership Units                        
Schedule of Investments [Line Items]                        
Fair Value 435,000 [3],[18]   435,000 [3],[18]     706,000 [6],[10]            
Investment, Identifier [Axis]: MIV Buyer, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,279,000 [3],[12],[13],[14]   3,279,000 [3],[12],[13],[14]     3,024,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: MIV Buyer, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 96,000 [3],[18]   96,000 [3],[18]     102,000 [6],[10]            
Investment, Identifier [Axis]: MIV Buyer, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (5,000) [3],[12],[13],[14]   (5,000) [3],[12],[13],[14]     174,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: MNS Buyer, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [6],[9],[19]           268,000            
Investment, Identifier [Axis]: MNS Buyer, Inc. | Partnership Units                        
Schedule of Investments [Line Items]                        
Fair Value [6],[10]           186,000            
Investment, Identifier [Axis]: MSI Express Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,135,000 [3],[13],[17]   2,135,000 [3],[13],[17]     2,205,000 [6],[9],[19]            
Investment, Identifier [Axis]: MSI Express Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 1,264,000 [3],[12],[13],[14]   1,264,000 [3],[12],[13],[14]     1,291,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: MVC Automotive Group GmbH | Common Equity Interest                        
Schedule of Investments [Line Items]                        
Fair Value 8,447,000 [2],[3],[18]   8,447,000 [2],[3],[18]     14,143,000 [5],[6],[10],[48],[49]   13,741,000        
Investment, Identifier [Axis]: MVC Automotive Group GmbH | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value           0   0        
Investment, Identifier [Axis]: MVC Automotive Group GmbH | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 3,087,000 [2],[3],[50]   3,087,000 [2],[3],[50]     0            
Investment, Identifier [Axis]: MVC Automotive Group GmbH | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 1,716,000 [2],[3],[13],[15],[50]   1,716,000 [2],[3],[13],[15],[50]     0            
Investment, Identifier [Axis]: MVC Private Equity Fund LP | General Partnership Interest(1,831.4 units)                        
Schedule of Investments [Line Items]                        
Fair Value           0   0        
Investment, Identifier [Axis]: MVC Private Equity Fund LP | Limited Partnership Interest (71,790.4 units)                        
Schedule of Investments [Line Items]                        
Fair Value           0   11,000        
Investment, Identifier [Axis]: Magnetite XIX, Limited | Subordinated Notes                        
Schedule of Investments [Line Items]                        
Fair Value 4,766,000 [2],[12],[13]   4,766,000 [2],[12],[13]     5,043,000 [5],[8],[9]            
Investment, Identifier [Axis]: Maia Bidco Limited | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 2,473,000 [2],[3],[12],[13]   2,473,000 [2],[3],[12],[13]     2,464,000 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Maia Bidco Limited | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 831,000 [2],[3],[13],[14],[22]   831,000 [2],[3],[13],[14],[22]     846,000 [5],[6],[7],[9],[26]            
Investment, Identifier [Axis]: Maia Bidco Limited | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (5,000) [2],[3],[13],[14],[22]   (5,000) [2],[3],[13],[14],[22]     0 [5],[6],[7],[9],[26]            
Investment, Identifier [Axis]: Main Line Commercial Pools LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] 1,992,000   1,992,000                  
Investment, Identifier [Axis]: Main Line Commercial Pools LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] (7,000)   (7,000)                  
Investment, Identifier [Axis]: Markerstudy Group Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[22] 4,866,000   4,866,000                  
Investment, Identifier [Axis]: Marmoutier Holding B.V. | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: Marmoutier Holding B.V. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 169,000 [2],[3],[13],[14],[24]   169,000 [2],[3],[13],[14],[24]     63,000 [5],[6],[7],[9],[23]            
Investment, Identifier [Axis]: Marmoutier Holding B.V. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 80,000 [2],[3],[13],[24]   80,000 [2],[3],[13],[24]     146,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Marmoutier Holding B.V. | Super Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 84,000 [2],[3],[13],[15]   84,000 [2],[3],[13],[15]     166,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Matrix Buyer, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] 1,765,000   1,765,000                  
Investment, Identifier [Axis]: Matrix Buyer, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] 49,000   49,000                  
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee) | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 1,703,000 [3],[12],[13]   1,703,000 [3],[12],[13]     3,468,000 [6],[9],[26]            
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee) | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 3,533,000 [3],[13],[22]   3,533,000 [3],[13],[22]     1,771,000 [6],[8],[9]            
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee) | Revolver 1                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     0 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee) | Revolver 2                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[13],[14],[22]   0 [3],[13],[14],[22]     0 [6],[7],[9],[26]            
Investment, Identifier [Axis]: Median B.V. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [5],[9],[26]           9,763,000            
Investment, Identifier [Axis]: Medical Solutions Parent Holdings, Inc. | Second Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [8],[9]           897,000            
Investment, Identifier [Axis]: Medical Solutions Parent Holdings, Inc. | Second Out Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [13],[17] 237,000   237,000                  
Investment, Identifier [Axis]: Medical Solutions Parent Holdings, Inc. | Third Out Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [13],[17] 212,000   212,000                  
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc. | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,004,000 [3],[12],[13]   4,004,000 [3],[12],[13]     4,023,000 [6],[8],[9]            
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc. | Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value 201,000 [3],[18]   201,000 [3],[18]     153,000 [6],[10]            
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 150,000 [3],[12],[13],[14]   150,000 [3],[12],[13],[14]     (15,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Mercell Holding AS | Class A Units                        
Schedule of Investments [Line Items]                        
Fair Value 73,000 [2],[3],[18]   73,000 [2],[3],[18]     123,000 [5],[6],[10]            
Investment, Identifier [Axis]: Mercell Holding AS | Class B Units                        
Schedule of Investments [Line Items]                        
Fair Value 0 [2],[3],[18]   0 [2],[3],[18]     0 [5],[6],[10]            
Investment, Identifier [Axis]: Mercell Holding AS | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,991,000 [2],[3],[13],[14],[51]   2,991,000 [2],[3],[13],[14],[51]     3,098,000 [5],[6],[7],[9],[52]            
Investment, Identifier [Axis]: Modern Star Holdings Bidco Pty Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[7],[9],[53]           7,420,000            
Investment, Identifier [Axis]: Momentum Textiles, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 7,180,000 [3],[12],[13]   7,180,000 [3],[12],[13]     7,218,000 [6],[8],[9]            
Investment, Identifier [Axis]: Momentum Textiles, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (7,000) [3],[12],[13],[14]   (7,000) [3],[12],[13],[14]     (9,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Moonlight Bidco Limited | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 204,000 [2],[3],[18]   204,000 [2],[3],[18]     202,000 [5],[6],[10]            
Investment, Identifier [Axis]: Moonlight Bidco Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,259,000 [2],[3],[13],[14],[22]   2,259,000 [2],[3],[13],[14],[22]     1,998,000 [5],[6],[7],[9],[26]            
Investment, Identifier [Axis]: Murphy Midco Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,450,000 [2],[3],[13],[28]   1,450,000 [2],[3],[13],[28]     1,570,000 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Music Reports, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 6,812,000 [3],[12],[13]   6,812,000 [3],[12],[13]     6,791,000 [6],[8],[9]            
Investment, Identifier [Axis]: NAW Buyer LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 14,822,000 [3],[12],[13],[14]   14,822,000 [3],[12],[13],[14]     12,816,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: NAW Buyer LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 666,000 [3],[18]   666,000 [3],[18]     595,000 [6]            
Investment, Identifier [Axis]: NAW Buyer LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (3,000) [3],[12],[13],[14]   (3,000) [3],[12],[13],[14]     (9,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: NF Holdco, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,713,000 [3],[12],[13]   5,713,000 [3],[12],[13]     5,921,000 [6],[8],[9]            
Investment, Identifier [Axis]: NF Holdco, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 115,000 [3],[18]   115,000 [3],[18]     224,000 [6],[10]            
Investment, Identifier [Axis]: NF Holdco, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 786,000 [3],[12],[13],[14]   786,000 [3],[12],[13],[14]     422,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: NPM Investments 28 B.V. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,329,000 [2],[3],[13],[14],[15]   2,329,000 [2],[3],[13],[14],[15]     2,393,000 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: Napa Bidco Pty Ltd | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 13,942,000 [2],[3],[13],[30]   13,942,000 [2],[3],[13],[30]     13,420,000 [5],[6],[9],[31]            
Investment, Identifier [Axis]: Nationwide Legal Services, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] 7,881,000   7,881,000                  
Investment, Identifier [Axis]: Nationwide Legal Services, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] (15,000)   (15,000)                  
Investment, Identifier [Axis]: NeoxCo | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,734,000 [2],[3],[13],[24]   2,734,000 [2],[3],[13],[24]     2,808,000 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Next Holdco, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 21,998,000 [3],[12],[13]   21,998,000 [3],[12],[13]     22,055,000 [6],[8],[9]            
Investment, Identifier [Axis]: Next Holdco, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (1,000) [3],[12],[13],[14]   (1,000) [3],[12],[13],[14]     (3,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Northstar Recycling, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 12,542,000 [3],[12],[13]   12,542,000 [3],[12],[13]     12,490,000 [6],[8],[9]            
Investment, Identifier [Axis]: Northstar Recycling, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     (32,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: OAC Holdings I Corp | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,276,000 [3],[12],[13]   3,276,000 [3],[12],[13]     3,285,000 [6],[8],[9]            
Investment, Identifier [Axis]: OAC Holdings I Corp | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 783,000 [3],[12],[13],[14]   783,000 [3],[12],[13],[14]     0 [6],[7],[8],[9]            
Investment, Identifier [Axis]: OG III B.V. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,464,000 [2],[3],[13],[15]   3,464,000 [2],[3],[13],[15]     3,589,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: ORS Buyer, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 6,299,000 [3],[12],[13]   6,299,000 [3],[12],[13]     4,905,000 [6],[8],[9]            
Investment, Identifier [Axis]: ORS Buyer, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] 410,000   410,000                  
Investment, Identifier [Axis]: ORTEC International Newco B.V. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,045,000 [2],[3],[13],[15]   1,045,000 [2],[3],[13],[15]     1,074,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: OSP AFS Buyer, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,893,000 [3],[12],[13],[14]   2,893,000 [3],[12],[13],[14]     2,883,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: OSP AFS Buyer, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (13,000) [3],[12],[13],[14]   (13,000) [3],[12],[13],[14]     (16,000) [6],[7],[9],[19]            
Investment, Identifier [Axis]: OSP Hamilton Purchaser, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 17,971,000 [3],[12],[13]   17,971,000 [3],[12],[13]     18,094,000 [6],[8],[9]            
Investment, Identifier [Axis]: OSP Hamilton Purchaser, LLC | LP Units                        
Schedule of Investments [Line Items]                        
Fair Value 184,000 [3],[18]   184,000 [3],[18]     182,000 [6],[10]            
Investment, Identifier [Axis]: OSP Hamilton Purchaser, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 669,000 [3],[12],[13],[14]   669,000 [3],[12],[13],[14]     672,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: OSP Lakeside Intermediate Holdings 2, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,972,000 [3],[13],[17]   3,972,000 [3],[13],[17]     4,201,000 [6],[9],[19]            
Investment, Identifier [Axis]: OSP Lakeside Intermediate Holdings 2, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (47,000) [3],[13],[14],[17]   (47,000) [3],[13],[14],[17]     (11,000) [6],[7],[9],[19]            
Investment, Identifier [Axis]: Ocelot Holdco LLC | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value [6],[10]           2,831,000            
Investment, Identifier [Axis]: Ocelot Holdco LLC | Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value [6]           2,438,000            
Investment, Identifier [Axis]: Ocelot Holdco LLC | Takeback Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [6]           2,933,000            
Investment, Identifier [Axis]: Ocular Therapeutix, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,625,000 [2],[3],[13],[17]   4,625,000 [2],[3],[13],[17]     4,826,000 [5],[6],[9],[19]            
Investment, Identifier [Axis]: Oracle Vision Bidco Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,774,000 [2],[3],[13],[28]   2,774,000 [2],[3],[13],[28]     2,925,000 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Origin Bidco Limited | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 339,000 [2],[3],[13],[15]   339,000 [2],[3],[13],[15]     345,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Origin Bidco Limited | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 533,000 [2],[3],[12],[13]   533,000 [2],[3],[12],[13]     529,000 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Owl Intermediate Holdings, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,156,000 [3],[12],[13],[14]   2,156,000 [3],[12],[13],[14]     2,345,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Owl Intermediate Holdings, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 170,000 [3],[12],[13],[14]   170,000 [3],[12],[13],[14]     (86,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: PAS Chassis Holdco LLC | Second Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13] 14,163,000   14,163,000                  
Investment, Identifier [Axis]: PDQ.Com Corporation | Class A-2 Partnership Units                        
Schedule of Investments [Line Items]                        
Fair Value 28,000 [3],[18]   28,000 [3],[18]     39,000 [6],[10]            
Investment, Identifier [Axis]: PDQ.Com Corporation | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 13,049,000 [3],[12],[13]   13,049,000 [3],[12],[13]     13,253,000 [6],[8],[9]            
Investment, Identifier [Axis]: PSP Intermediate 4, LLC | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 930,000 [2],[3],[13],[15]   930,000 [2],[3],[13],[15]     960,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: PSP Intermediate 4, LLC | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 1,404,000 [2],[3],[12],[13]   1,404,000 [2],[3],[12],[13]     1,411,000 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Panoche Energy Center LLC | First Lien Senior Secured Bond                        
Schedule of Investments [Line Items]                        
Fair Value 2,709,000 [3]   2,709,000 [3]     3,058,000 [6]            
Investment, Identifier [Axis]: Panther Bidco Pty Ltd | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[14],[30] 4,070,000   4,070,000                  
Investment, Identifier [Axis]: Pare SAS (SAS Maurice MARLE) | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 2,587,000 [2],[3],[13],[15]   2,587,000 [2],[3],[13],[15]     2,537,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Pare SAS (SAS Maurice MARLE) | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 1,300,000 [2],[3],[12],[13]   1,300,000 [2],[3],[12],[13]     1,200,000 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Parkview Dental Holdings LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[17] 623,000   623,000                  
Investment, Identifier [Axis]: Parkview Dental Holdings LLC | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [6],[9],[19]           29,000            
Investment, Identifier [Axis]: Parkview Dental Holdings LLC | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [6],[9],[19]           592,000            
Investment, Identifier [Axis]: Parkview Dental Holdings LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 205,000 [3],[18]   205,000 [3],[18]     227,000 [6],[10]            
Investment, Identifier [Axis]: Parkview Dental Holdings LLC | Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value 39,000 [3]   39,000 [3]     38,000 [6]            
Investment, Identifier [Axis]: Patriot New Midco 1 Limited (Forensic Risk Alliance) | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[9],[16]           2,115,000            
Investment, Identifier [Axis]: Patriot New Midco 1 Limited (Forensic Risk Alliance) | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[8],[9]           2,397,000            
Investment, Identifier [Axis]: Pepper Bidco Pty Ltd | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[14],[30] 1,699,000   1,699,000                  
Investment, Identifier [Axis]: Perimeter Master Note Business Trust | Structured Secured Note - Class A                        
Schedule of Investments [Line Items]                        
Fair Value 180,000 [2],[3]   180,000 [2],[3]     181,000 [5],[6]            
Investment, Identifier [Axis]: Perimeter Master Note Business Trust | Structured Secured Note - Class B                        
Schedule of Investments [Line Items]                        
Fair Value 181,000 [2],[3]   181,000 [2],[3]     181,000 [5],[6]            
Investment, Identifier [Axis]: Perimeter Master Note Business Trust | Structured Secured Note - Class C                        
Schedule of Investments [Line Items]                        
Fair Value 181,000 [2],[3]   181,000 [2],[3]     181,000 [5],[6]            
Investment, Identifier [Axis]: Perimeter Master Note Business Trust | Structured Secured Note - Class D                        
Schedule of Investments [Line Items]                        
Fair Value 181,000 [2],[3]   181,000 [2],[3]     181,000 [5],[6]            
Investment, Identifier [Axis]: Perimeter Master Note Business Trust | Structured Secured Note - Class E                        
Schedule of Investments [Line Items]                        
Fair Value 9,137,000 [2],[3]   9,137,000 [2],[3]     9,132,000 [5],[6]            
Investment, Identifier [Axis]: Permaconn BidCo Pty Ltd | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,839,000 [2],[3],[13],[30]   2,839,000 [2],[3],[13],[30]     2,732,000 [5],[6],[9],[31]            
Investment, Identifier [Axis]: Pinion Holdings Limited | Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3] 289,000   289,000                  
Investment, Identifier [Axis]: Polara Enterprises, L.L.C. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 938,000 [3],[12],[13]   938,000 [3],[12],[13]     944,000 [6],[8],[9]            
Investment, Identifier [Axis]: Polara Enterprises, L.L.C. | Partnership Units                        
Schedule of Investments [Line Items]                        
Fair Value 1,938,000 [3]   1,938,000 [3]     1,974,000 [6]            
Investment, Identifier [Axis]: Polara Enterprises, L.L.C. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     316,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Policy Services Company, LLC | Class A Units                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18],[35]   0 [3],[18],[35]     0            
Investment, Identifier [Axis]: Policy Services Company, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 49,896,000 [3],[12],[13],[35]   49,896,000 [3],[12],[13],[35]     48,065,000 [6],[8],[9]            
Investment, Identifier [Axis]: Policy Services Company, LLC | Warrants - Class A                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18],[35]   0 [3],[18],[35]     0 [6],[10]            
Investment, Identifier [Axis]: Policy Services Company, LLC | Warrants - Class B                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18],[35]   0 [3],[18],[35]     0 [6],[10]            
Investment, Identifier [Axis]: Policy Services Company, LLC | Warrants - Class CC                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18],[35]   0 [3],[18],[35]     0 [6],[10]            
Investment, Identifier [Axis]: Policy Services Company, LLC | Warrants - Class D                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18],[35]   0 [3],[18],[35]     0 [6],[10]            
Investment, Identifier [Axis]: Polymer Solutions Group Holdings, LLC | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     0 [5],[6],[10],[11]            
Investment, Identifier [Axis]: Polymer Solutions Group Holdings, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 314,000 [3],[12],[13],[20]   314,000 [3],[12],[13],[20]     364,000 [6],[8],[9],[11],[21]            
Investment, Identifier [Axis]: PowerGEM Buyer, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,625,000 [3],[12],[13],[14]   5,625,000 [3],[12],[13],[14]     4,867,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: PowerGEM Buyer, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (12,000) [3],[12],[13],[14]   (12,000) [3],[12],[13],[14]     (4,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Premium Franchise Brands, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 9,991,000 [3],[12],[13]   9,991,000 [3],[12],[13]     10,012,000 [6],[9],[29]            
Investment, Identifier [Axis]: Premium Invest | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 9,661,000 [2],[3],[13],[14],[15]   9,661,000 [2],[3],[13],[14],[15]     9,842,000 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: Prime Power Solutions, LLC | Second Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13] 14,700,000   14,700,000                  
Investment, Identifier [Axis]: Pro-Vision Solutions Holdings, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 7,640,000 [3],[13],[17]   7,640,000 [3],[13],[17]     7,678,000 [6],[9],[19]            
Investment, Identifier [Axis]: Pro-Vision Solutions Holdings, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 331,000 [3],[18]   331,000 [3],[18]     249,000 [6],[10]            
Investment, Identifier [Axis]: Pro-Vision Solutions Holdings, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 199,000 [3],[13],[14],[17]   199,000 [3],[13],[14],[17]     137,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Proceed Legal Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] 9,762,000   9,762,000                  
Investment, Identifier [Axis]: Proceed Legal Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] (4,000)   (4,000)                  
Investment, Identifier [Axis]: Process Equipment, Inc. (ProcessBarron) | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,253,000 [3],[13],[25]   5,253,000 [3],[13],[25]     5,254,000 [6],[9],[29]            
Investment, Identifier [Axis]: Process Insights Acquisition, Inc. | Class A Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value [3] 17,000   17,000                  
Investment, Identifier [Axis]: Process Insights Acquisition, Inc. | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     72,000 [6],[10]            
Investment, Identifier [Axis]: Process Insights Acquisition, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,797,000 [3],[12],[13]   4,797,000 [3],[12],[13]     5,022,000 [6],[8],[9]            
Investment, Identifier [Axis]: Process Insights Acquisition, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 351,000 [3],[12],[13],[14]   351,000 [3],[12],[13],[14]     896,000 [6],[8],[9]            
Investment, Identifier [Axis]: ProfitOptics, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,577,000 [3],[13],[17]   1,577,000 [3],[13],[17]     1,595,000 [6],[9],[19]            
Investment, Identifier [Axis]: ProfitOptics, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 448,000 [3],[18]   448,000 [3],[18]     423,000 [6],[10]            
Investment, Identifier [Axis]: ProfitOptics, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (3,000) [3],[13],[14],[17]   (3,000) [3],[13],[14],[17]     0 [6],[7],[9],[19]            
Investment, Identifier [Axis]: ProfitOptics, LLC | Senior Subordinated Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 78,000 [3]   78,000 [3]     78,000 [6]            
Investment, Identifier [Axis]: Protego Bidco B.V. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[15] 1,867,000   1,867,000                  
Investment, Identifier [Axis]: Protego Bidco B.V. | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[9],[23]           1,599,000            
Investment, Identifier [Axis]: Protego Bidco B.V. | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[9],[23]           320,000            
Investment, Identifier [Axis]: Protego Bidco B.V. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 2,239,000 [2],[3],[13],[15]   2,239,000 [2],[3],[13],[15]     2,300,000 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Protego Bidco B.V. | Super Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[15] 1,457,000   1,457,000                  
Investment, Identifier [Axis]: QPE7 SPV1 BidCo Pty Ltd | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,674,000 [2],[3],[13],[54]   1,674,000 [2],[3],[13],[54]     1,829,000 [5],[6],[9],[55]            
Investment, Identifier [Axis]: Qima Finance LTD | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[7],[8],[9]           2,799,000            
Investment, Identifier [Axis]: Qima Finance LTD | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[15] 183,000   183,000                  
Investment, Identifier [Axis]: Qima Finance LTD | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[12],[13],[14] 2,792,000   2,792,000                  
Investment, Identifier [Axis]: R1 Holdings, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,711,000 [3],[12],[13]   5,711,000 [3],[12],[13]     5,879,000 [6],[9],[29]            
Investment, Identifier [Axis]: R1 Holdings, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 1,748,000 [3],[12],[13],[14]   1,748,000 [3],[12],[13],[14]     1,796,000 [6],[7],[9],[29]            
Investment, Identifier [Axis]: RA Outdoors, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 7,828,000 [3],[13],[20],[25],[47]   7,828,000 [3],[13],[20],[25],[47]     9,785,000 [6],[9],[11],[21],[29]            
Investment, Identifier [Axis]: RA Outdoors, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 749,000 [3],[13],[20],[25],[47]   749,000 [3],[13],[20],[25],[47]     919,000 [6],[9],[11],[21],[29]            
Investment, Identifier [Axis]: REP SEKO MERGER SUB LLC | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: REP SEKO MERGER SUB LLC | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 1,791,000 [3],[12],[13]   1,791,000 [3],[12],[13]     2,081,000 [6],[8],[9]            
Investment, Identifier [Axis]: REP SEKO MERGER SUB LLC | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 385,000 [3],[12],[13],[14]   385,000 [3],[12],[13],[14]     258,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: REP SEKO MERGER SUB LLC | First Out Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,190,000 [3],[12],[13]   1,190,000 [3],[12],[13]     1,112,000 [6],[8],[9]            
Investment, Identifier [Axis]: RKD Group, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 12,400,000 [3],[12],[13],[14]   12,400,000 [3],[12],[13],[14]     12,039,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: RKD Group, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (8,000) [3],[12],[13],[14]   (8,000) [3],[12],[13],[14]     (10,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: ROI Solutions LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 8,122,000 [3],[12],[13],[14]   8,122,000 [3],[12],[13],[14]     9,078,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: ROI Solutions LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (260,000) [3],[12],[13],[14]   (260,000) [3],[12],[13],[14]     (32,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: RPX Corporation | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 15,489,000 [3],[13],[17]   15,489,000 [3],[13],[17]     21,484,000 [6],[9],[19]            
Investment, Identifier [Axis]: RPX Corporation | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (15,000) [3],[13],[14],[17]   (15,000) [3],[13],[14],[17]     (30,000) [6],[7],[9],[19]            
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC | Class A Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     0 [6],[10],[11]            
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC | Class B Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     0 [6],[10],[11]            
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC | Class C Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value 24,000 [3],[18]   24,000 [3],[18]     36,000 [6],[10],[11]            
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     0 [6],[10],[11]            
Investment, Identifier [Axis]: Randys Holdings, Inc. | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 654,000 [3],[18]   654,000 [3],[18]     690,000 [6],[10]            
Investment, Identifier [Axis]: Randys Holdings, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 13,123,000 [3],[13],[14],[17]   13,123,000 [3],[13],[14],[17]     12,552,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Randys Holdings, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 194,000 [3],[13],[14],[17]   194,000 [3],[13],[14],[17]     (19,000) [6],[7],[9],[19]            
Investment, Identifier [Axis]: Rapid Buyer LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,330,000 [3],[13],[14],[25]   5,330,000 [3],[13],[14],[25]     4,897,000 [6],[7],[9],[29]            
Investment, Identifier [Axis]: Rapid Buyer LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 530,000 [3],[18]   530,000 [3],[18]     377,000 [6],[10]            
Investment, Identifier [Axis]: Rapid Buyer LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (10,000) [3],[13],[14],[25]   (10,000) [3],[13],[14],[25]     (93,000) [6],[7],[9],[29]            
Investment, Identifier [Axis]: Real Chemistry Intermediate III, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,331,000 [3],[12],[13],[14]   4,331,000 [3],[12],[13],[14]     4,058,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Real Chemistry Intermediate III, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (10,000) [3],[12],[13],[14]   (10,000) [3],[12],[13],[14]     (4,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Recon Buyer LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,513,000 [3],[12],[13],[14]   1,513,000 [3],[12],[13],[14]     1,874,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Recon Buyer LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 123,000 [3],[18]   123,000 [3],[18]     116,000 [6],[10]            
Investment, Identifier [Axis]: Recon Buyer LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (6,000) [3],[12],[13],[14]   (6,000) [3],[12],[13],[14]     (8,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Recovery Point Systems, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 11,118,000 [3],[13],[25]   11,118,000 [3],[13],[25]     11,176,000 [6],[9],[29]            
Investment, Identifier [Axis]: Recovery Point Systems, Inc. | Partnership Equity                        
Schedule of Investments [Line Items]                        
Fair Value 112,000 [3],[18]   112,000 [3],[18]     103,000 [6],[10]            
Investment, Identifier [Axis]: Renovation Parent Holdings, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,648,000 [3],[12],[13]   4,648,000 [3],[12],[13]     4,609,000 [6],[8],[9]            
Investment, Identifier [Axis]: Renovation Parent Holdings, LLC | Partnership Equity                        
Schedule of Investments [Line Items]                        
Fair Value 229,000 [3],[18]   229,000 [3],[18]     160,000 [6],[10]            
Investment, Identifier [Axis]: Resolute Investment Managers, Inc. | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     0 [6],[10],[11]            
Investment, Identifier [Axis]: Riedel Beheer B.V. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,371,000 [2],[3],[13],[15]   2,371,000 [2],[3],[13],[15]     2,146,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Rocade Holdings LLC | Common LP Units                        
Schedule of Investments [Line Items]                        
Fair Value 4,687,000 [3],[35]   4,687,000 [3],[35]     3,596,000 [6],[37]   243,000        
Investment, Identifier [Axis]: Rocade Holdings LLC | Preferred LP Units                        
Schedule of Investments [Line Items]                        
Fair Value 89,041,000 [3],[12],[35]   89,041,000 [3],[12],[35]     89,450,000 [6],[7],[8],[37]   83,000,000        
Investment, Identifier [Axis]: Rocade Holdings LLC | Second Lien Secured Loan                        
Schedule of Investments [Line Items]                        
Fair Value             $ 10,000,000.0          
Investment, Identifier [Axis]: Rocade Holdings LLC | Second Lien Secured Loan | Funded                        
Schedule of Investments [Line Items]                        
Fair Value 12,200,000   12,200,000     2,900,000            
Investment, Identifier [Axis]: Rocade Holdings LLC | Second Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 11,930,000 [3],[12],[13],[14],[35]   11,930,000 [3],[12],[13],[14],[35]     2,667,000 [6],[7],[8],[9],[37]   0        
Investment, Identifier [Axis]: Rock Labor LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 6,438,000 [3],[13],[17]   6,438,000 [3],[13],[17]     6,471,000 [6],[9],[19]            
Investment, Identifier [Axis]: Rock Labor LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 1,057,000 [3],[18]   1,057,000 [3],[18]     1,380,000 [6],[10]            
Investment, Identifier [Axis]: Rock Labor LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[13],[14],[17]   0 [3],[13],[14],[17]     0 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Ruby Bidco Pty Ltd | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,729,000 [2],[3],[13],[14],[30]   1,729,000 [2],[3],[13],[14],[30]     1,654,000 [5],[6],[7],[9],[31]            
Investment, Identifier [Axis]: SBP Holdings LP | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 8,584,000 [3],[13],[14],[17]   8,584,000 [3],[13],[14],[17]     8,615,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: SBP Holdings LP | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[13],[14],[17]   0 [3],[13],[14],[17]     (3,000) [6],[7],[9],[19]            
Investment, Identifier [Axis]: SCP CDH Buyer, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 8,295,000 [3],[12],[13],[14]   8,295,000 [3],[12],[13],[14]     6,885,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: SCP CDH Buyer, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (8,000) [3],[12],[13],[14]   (8,000) [3],[12],[13],[14]     (10,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: SCP Medical Products, LLC. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,007,000 [3],[12],[13]   2,007,000 [3],[12],[13]     2,022,000 [6],[8],[9]            
Investment, Identifier [Axis]: SCP Medical Products, LLC. | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 44,000 [3],[18]   44,000 [3],[18]     53,000 [6],[10]            
Investment, Identifier [Axis]: SCP Medical Products, LLC. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 84,000 [3],[12],[13],[14]   84,000 [3],[12],[13],[14]     (1,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: SPATCO Energy Solutions, LLC | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 249,000 [3],[18]   249,000 [3],[18]     309,000 [6],[10]            
Investment, Identifier [Axis]: SPATCO Energy Solutions, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 7,423,000 [3],[12],[13],[14]   7,423,000 [3],[12],[13],[14]     7,374,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: SPATCO Energy Solutions, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 263,000 [3],[12],[13],[14]   263,000 [3],[12],[13],[14]     (12,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: SRS Acquiom Holdings LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13] 4,400,000   4,400,000                  
Investment, Identifier [Axis]: SRS Acquiom Holdings LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] (8,000)   (8,000)                  
Investment, Identifier [Axis]: SSCP Pegasus Midco Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,715,000 [2],[3],[13],[14],[22]   1,715,000 [2],[3],[13],[14],[22]     7,081,000 [5],[6],[9],[26]            
Investment, Identifier [Axis]: SSCP Spring Bidco 3 Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,013,000 [2],[3],[13],[28]   1,013,000 [2],[3],[13],[28]     1,028,000 [5],[6],[9],[27]            
Investment, Identifier [Axis]: SVI International LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [6],[8],[9]           639,000            
Investment, Identifier [Axis]: SVI International LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 356,000 [3]   356,000 [3]     378,000 [6]            
Investment, Identifier [Axis]: SVI International LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [6],[7],[8],[9]           0            
Investment, Identifier [Axis]: Saab Purchaser, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 13,423,000 [3],[12],[13]   13,423,000 [3],[12],[13]     13,505,000 [6],[8],[9]            
Investment, Identifier [Axis]: Saab Purchaser, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (24,000) [3],[12],[13],[14]   (24,000) [3],[12],[13],[14]     (22,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Safety Products Holdings, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 8,709,000 [3],[12],[13]   8,709,000 [3],[12],[13]     9,422,000 [6],[8],[9]            
Investment, Identifier [Axis]: Safety Products Holdings, LLC | Preferred Stock                        
Schedule of Investments [Line Items]                        
Fair Value 602,000 [3],[18]   602,000 [3],[18]     500,000 [6],[10]            
Investment, Identifier [Axis]: Sanoptis S.A.R.L. | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 5,624,000 [2],[3],[13],[14],[15]   5,624,000 [2],[3],[13],[14],[15]     4,258,000 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: Sanoptis S.A.R.L. | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 3,902,000 [2],[3],[13],[56]   3,902,000 [2],[3],[13],[56]     3,275,000 [5],[6],[9],[57]            
Investment, Identifier [Axis]: Sansidor BV | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,048,000 [2],[3],[13],[15]   1,048,000 [2],[3],[13],[15]     1,059,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Sapphire Bidco S.A.R.L. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[7],[9],[16]           1,793,000            
Investment, Identifier [Axis]: Sapphire Bidco S.A.R.L. | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[14],[15] 1,767,000   1,767,000                  
Investment, Identifier [Axis]: Sapphire Bidco S.A.R.L. | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[12],[13] 44,000   44,000                  
Investment, Identifier [Axis]: Scaled Agile, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 796,000 [3],[13],[20],[25]   796,000 [3],[13],[20],[25]     1,558,000 [6],[8],[9]            
Investment, Identifier [Axis]: Scaled Agile, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 152,000 [3],[13],[20],[25]   152,000 [3],[13],[20],[25]     294,000 [6],[8],[9]            
Investment, Identifier [Axis]: Scout Bidco B.V. | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 3,525,000 [2],[3],[13],[24]   3,525,000 [2],[3],[13],[24]     3,456,000 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Scout Bidco B.V. | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 428,000 [2],[3],[13],[25]   428,000 [2],[3],[13],[25]     408,000 [5],[6],[9],[29]            
Investment, Identifier [Axis]: Scout Bidco B.V. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 403,000 [2],[3],[13],[14],[15]   403,000 [2],[3],[13],[14],[15]     364,000 [5],[6],[7],[9],[23]            
Investment, Identifier [Axis]: Screenvision, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 5,079,000 [3],[12],[13]   5,079,000 [3],[12],[13]     5,095,000 [6],[8],[9]            
Investment, Identifier [Axis]: Screenvision, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (9,000) [3],[12],[13],[14]   (9,000) [3],[12],[13],[14]     (11,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Screenvision, LLC | Second Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 32,502,000 [3],[12],[13]   32,502,000 [3],[12],[13]     32,534,000 [6],[8],[9]            
Investment, Identifier [Axis]: Security Holdings B.V | Bridge Loan                        
Schedule of Investments [Line Items]                        
Fair Value           6,997,000   6,655,000        
Investment, Identifier [Axis]: Security Holdings B.V | Common Stock Series A                        
Schedule of Investments [Line Items]                        
Fair Value           436,000   399,000        
Investment, Identifier [Axis]: Security Holdings B.V | Common Stock Series B                        
Schedule of Investments [Line Items]                        
Fair Value           40,702,000   37,296,000        
Investment, Identifier [Axis]: Security Holdings B.V | Senior Unsecured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value           2,909,000   2,293,000        
Investment, Identifier [Axis]: Security Holdings B.V | Senior Unsecured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value           11,565,000   11,191,000        
Investment, Identifier [Axis]: Security Holdings B.V. | Bridge Loan                        
Schedule of Investments [Line Items]                        
Fair Value 7,173,000 [2],[3],[50]   7,173,000 [2],[3],[50]     6,997,000 [5],[6],[48],[49]            
Investment, Identifier [Axis]: Security Holdings B.V. | Common Stock Series A                        
Schedule of Investments [Line Items]                        
Fair Value 447,000 [2],[3],[18]   447,000 [2],[3],[18]     436,000 [5],[6],[10],[48],[49]            
Investment, Identifier [Axis]: Security Holdings B.V. | Common Stock Series B                        
Schedule of Investments [Line Items]                        
Fair Value 41,741,000 [2],[3],[18]   41,741,000 [2],[3],[18]     40,702,000 [5],[6],[48],[49]            
Investment, Identifier [Axis]: Security Holdings B.V. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 10,984,000 [2],[3],[14],[50]   10,984,000 [2],[3],[14],[50]     6,225,000 [5],[6],[7],[48],[49]            
Investment, Identifier [Axis]: Security Holdings B.V. | Senior Subordinated Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 11,747,000 [2],[3],[50]   11,747,000 [2],[3],[50]     11,565,000 [5],[6],[48],[49]            
Investment, Identifier [Axis]: Security Holdings B.V. | Senior Unsecured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,049,000 [2],[3],[50]   3,049,000 [2],[3],[50]     2,909,000 [5],[6],[48],[49]            
Investment, Identifier [Axis]: Security Holdings B.V| Revolver                        
Schedule of Investments [Line Items]                        
Fair Value           6,225,000   5,333,000        
Investment, Identifier [Axis]: Selenium Designated Activity Company | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,121,000 [2],[3],[13],[24]   3,121,000 [2],[3],[13],[24]     3,163,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Serta Simmons Bedding LLC | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 855,000 [18]   855,000 [18]     1,009,000 [10]            
Investment, Identifier [Axis]: Shelf Bidco Ltd | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 4,692,000 [2],[3],[18]   4,692,000 [2],[3],[18]     4,704,000 [5],[6],[10],[11]            
Investment, Identifier [Axis]: Shelf Bidco Ltd | Second Out Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 11,986,000 [2],[3],[12],[13]   11,986,000 [2],[3],[12],[13]     12,042,000 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Sierra Senior Loan Strategy JV I LLC | 89.01% Member Interest                        
Schedule of Investments [Line Items]                        
Fair Value 0 [2],[18],[35],[45]   0 [2],[18],[35],[45]     16,404,000 [5],[11],[37],[46]            
Investment, Identifier [Axis]: Sierra Senior Loan Strategy JV I LLC, Member Interest                        
Schedule of Investments [Line Items]                        
Fair Value           16,404,000   41,453,000        
Investment, Identifier [Axis]: Sierra Senior Loan Strategy JV LLC (Sierra JV)                        
Schedule of Investments [Line Items]                        
Total contributed capital 110,100,000   110,100,000                  
Investment, Identifier [Axis]: Sinari Invest | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,717,000 [2],[3],[13],[14],[15]   1,717,000 [2],[3],[13],[14],[15]     1,872,000 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: Sisu Acquisitionco., Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 7,117,000 [3],[12],[13]   7,117,000 [3],[12],[13]     7,176,000 [6],[8],[9]            
Investment, Identifier [Axis]: Skyvault Holdings LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 16,143,000 [3],[35]   16,143,000 [3],[35]     16,020,000 [6],[7],[37]   3,586,000        
Investment, Identifier [Axis]: Skyvault Holdings LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 5,003,000 [3],[18],[35]   5,003,000 [3],[18],[35]     5,339,000 [6],[7],[10],[37]   1,195,000        
Investment, Identifier [Axis]: SmartShift Group, Inc. | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 562,000 [3],[18]   562,000 [3],[18]     594,000 [6],[10]            
Investment, Identifier [Axis]: SmartShift Group, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 12,781,000 [3],[13],[25]   12,781,000 [3],[13],[25]     12,814,000 [6],[9],[29]            
Investment, Identifier [Axis]: SmartShift Group, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[13],[14],[25]   0 [3],[13],[14],[25]     0 [6],[7],[9],[29]            
Investment, Identifier [Axis]: Smile Brands Group Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,193,000 [3],[12],[13]   4,193,000 [3],[12],[13]     4,577,000 [6],[8],[9]            
Investment, Identifier [Axis]: Solo Buyer, L.P. | Common Equity                        
Schedule of Investments [Line Items]                        
Fair Value 248,000 [3],[18]   248,000 [3],[18]     269,000 [6],[10]            
Investment, Identifier [Axis]: Solo Buyer, L.P. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 14,601,000 [3],[12],[13]   14,601,000 [3],[12],[13]     14,798,000 [6],[8],[9]            
Investment, Identifier [Axis]: Solo Buyer, L.P. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 765,000 [3],[12],[13],[14]   765,000 [3],[12],[13],[14]     814,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Sonicwall US Holdings Inc | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [8],[9]           1,844,000            
Investment, Identifier [Axis]: Sonicwall US Holdings Inc | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [12],[13] 783,000   783,000                  
Investment, Identifier [Axis]: Sonicwall US Holdings Inc | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [12],[13] 1,101,000   1,101,000                  
Investment, Identifier [Axis]: Sound Point CLO XX, Ltd. | Subordinated Structured Notes                        
Schedule of Investments [Line Items]                        
Fair Value [5],[10],[11]           21,000            
Investment, Identifier [Axis]: Sparus Holdings, LLC (f/k/a Sparus Holdings, Inc.) | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,618,000 [3],[12],[13]   2,618,000 [3],[12],[13]     2,655,000 [6],[8],[9]            
Investment, Identifier [Axis]: Sparus Holdings, LLC (f/k/a Sparus Holdings, Inc.) | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[12],[13],[14]   0 [3],[12],[13],[14]     (1,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Spatial Business Systems LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [6],[8],[9]           7,218,000            
Investment, Identifier [Axis]: Spatial Business Systems LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [6],[7],[8],[9]           (4,000)            
Investment, Identifier [Axis]: Stage 3 Holdco LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[14],[17] 2,886,000   2,886,000                  
Investment, Identifier [Axis]: Stage 3 Holdco LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[14],[17] (7,000)   (7,000)                  
Investment, Identifier [Axis]: Starnmeer B.V. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,480,000 [2],[3],[13],[25]   2,480,000 [2],[3],[13],[25]     2,475,000 [5],[6],[9],[29]            
Investment, Identifier [Axis]: Sunrise Acquisition Bidco Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,598,000 [2],[3],[13],[14],[22]   2,598,000 [2],[3],[13],[14],[22]     1,875,000 [5],[6],[7],[9],[26]            
Investment, Identifier [Axis]: Superjet Buyer, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,505,000 [3],[12],[13]   4,505,000 [3],[12],[13]     4,249,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Superjet Buyer, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (22,000) [3],[12],[13],[14]   (22,000) [3],[12],[13],[14]     (13,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Surface Finishing Technologies Inc. | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value [3],[18] 192,000   192,000                  
Investment, Identifier [Axis]: Surface Finishing Technologies Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[14],[25] 7,100,000   7,100,000                  
Investment, Identifier [Axis]: Surface Finishing Technologies Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[14],[25] (18,000)   (18,000)                  
Investment, Identifier [Axis]: Swoop Intermediate III, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,280,000 [3],[13],[14],[17]   4,280,000 [3],[13],[14],[17]     1,977,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Swoop Intermediate III, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[13],[14],[17]   0 [3],[13],[14],[17]     0 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Syniverse Holdings, Inc. | Series A Preferred Equity                        
Schedule of Investments [Line Items]                        
Fair Value 10,303,000 [3]   10,303,000 [3]     11,439,000 [6]            
Investment, Identifier [Axis]: Syntax Midco 2 Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,602,000 [3],[13],[14],[17]   2,602,000 [3],[13],[14],[17]     2,599,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Syntax Midco 2 Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 493,000 [3],[13],[14],[17]   493,000 [3],[13],[14],[17]     797,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: TA KHP Aggregator, L.P. | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 78,000 [3],[18]   78,000 [3],[18]     56,000 [6],[10]            
Investment, Identifier [Axis]: TA KHP Aggregator, L.P. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,011,000 [3],[12],[13],[14]   1,011,000 [3],[12],[13],[14]     1,012,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: TA KHP Aggregator, L.P. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (3,000) [3],[12],[13],[14]   (3,000) [3],[12],[13],[14]     (4,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: TA KHP Aggregator, L.P. | Subordinated Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,518,000 [3]   2,518,000 [3]     2,226,000 [6]            
Investment, Identifier [Axis]: TA SL Cayman Aggregator Corp. | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 78,000 [3],[18]   78,000 [3],[18]     93,000 [6],[10]            
Investment, Identifier [Axis]: TA SL Cayman Aggregator Corp. | Subordinated Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,339,000 [3],[13],[25]   3,339,000 [3],[13],[25]     3,148,000 [6],[29]            
Investment, Identifier [Axis]: TAPCO Buyer LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 9,485,000 [3],[13],[17]   9,485,000 [3],[13],[17]     9,492,000 [6],[9],[19]            
Investment, Identifier [Axis]: TAPCO Buyer LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 438,000 [3]   438,000 [3]     523,000 [6],[10]            
Investment, Identifier [Axis]: TAPCO Buyer LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 198,000 [3],[13],[14],[17]   198,000 [3],[13],[14],[17]     (16,000) [6],[7],[9],[19]            
Investment, Identifier [Axis]: THG Acquisition, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 6,419,000 [3],[13],[14],[17]   6,419,000 [3],[13],[14],[17]     5,401,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: THG Acquisition, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 365,000 [3],[13],[14],[17]   365,000 [3],[13],[14],[17]     190,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 20,112,000 [3],[12],[13],[14]   20,112,000 [3],[12],[13],[14]     16,833,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc. | Partnership Units                        
Schedule of Investments [Line Items]                        
Fair Value 40,000 [3],[18]   40,000 [3],[18]     36,000 [6],[10]            
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (1,000) [3],[12],[13],[14]   (1,000) [3],[12],[13],[14]     0 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Tallman Equipment Co., Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] 6,360,000   6,360,000                  
Investment, Identifier [Axis]: Tallman Equipment Co., Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13],[14] (15,000)   (15,000)                  
Investment, Identifier [Axis]: Tank Holding Corp | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 7,337,000 [3],[13],[17]   7,337,000 [3],[13],[17]     7,743,000 [6],[9],[19]            
Investment, Identifier [Axis]: Tank Holding Corp | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 2,835,000 [3],[13],[17]   2,835,000 [3],[13],[17]     2,985,000 [6],[9],[19]            
Investment, Identifier [Axis]: Tank Holding Corp | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 52,000 [3],[13],[14],[17]   52,000 [3],[13],[14],[17]     (9,000) [6],[7],[9],[19]            
Investment, Identifier [Axis]: Tanqueray Bidco Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,780,000 [2],[3],[13],[22]   1,780,000 [2],[3],[13],[22]     1,779,000 [5],[6],[7],[9],[26]            
Investment, Identifier [Axis]: Team Air Distributing, LLC | Partnership Equity                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     212,000 [6],[10]            
Investment, Identifier [Axis]: Team Air Distributing, LLC | Preferred Stock 1                        
Schedule of Investments [Line Items]                        
Fair Value [3],[18] 48,000   48,000                  
Investment, Identifier [Axis]: Team Air Distributing, LLC | Preferred Stock 2                        
Schedule of Investments [Line Items]                        
Fair Value [3],[18] 0   0                  
Investment, Identifier [Axis]: Team Air Distributing, LLC | Subordinated Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 737,000 [3],[20]   737,000 [3],[20]     717,000 [6]            
Investment, Identifier [Axis]: Technology Service Stream BidCo Pty Ltd | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 993,000 [2],[3],[13],[14],[30]   993,000 [2],[3],[13],[14],[30]     821,000 [5],[6],[7],[9],[31]            
Investment, Identifier [Axis]: Techone B.V. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[9],[16]           4,114,000            
Investment, Identifier [Axis]: Techone B.V. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [5],[6],[7],[9],[16]           (2,000)            
Investment, Identifier [Axis]: Tencarva Machinery Company, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 9,139,000 [3],[12],[13],[14]   9,139,000 [3],[12],[13],[14]     7,507,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Tencarva Machinery Company, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (16,000) [3],[12],[13],[14]   (16,000) [3],[12],[13],[14]     (17,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Terrybear, Inc. | Partnership Equity                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: Terrybear, Inc. | Subordinated Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 166,000 [3],[20]   166,000 [3],[20]     269,000 [6]            
Investment, Identifier [Axis]: The Caprock Group, Inc. (aka TA/TCG Holdings, LLC) | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 8,130,000 [3],[13],[14],[17]   8,130,000 [3],[13],[14],[17]     7,768,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: The Caprock Group, Inc. (aka TA/TCG Holdings, LLC) | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (14,000) [3],[13],[14],[17]   (14,000) [3],[13],[14],[17]     (18,000) [6],[7],[9],[19]            
Investment, Identifier [Axis]: The Octave Music Group, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 53,000 [12],[13]   53,000 [12],[13]     58,000 [8],[9]            
Investment, Identifier [Axis]: The Octave Music Group, Inc. | Partnership Equity                        
Schedule of Investments [Line Items]                        
Fair Value 1,597,000 [3],[18]   1,597,000 [3],[18]     1,956,000 [6],[10]            
Investment, Identifier [Axis]: Thompson Rivers LLC                        
Schedule of Investments [Line Items]                        
Total contributed capital                       $ 75,000,000.0
Investment, Identifier [Axis]: Thompson Rivers LLC | 16.0% Member Interest                        
Schedule of Investments [Line Items]                        
Fair Value 2,710,000 [18],[35],[45]   2,710,000 [18],[35],[45]     4,271,000 [10],[37],[46]            
Investment, Identifier [Axis]: Thompson Rivers LLC | Member Interest                        
Schedule of Investments [Line Items]                        
Fair Value           4,271,000   7,208,000        
Investment, Identifier [Axis]: Thompsonn Rivers LLC                        
Schedule of Investments [Line Items]                        
Total contributed capital 79,411,000   79,411,000     79,411,000            
Investment, Identifier [Axis]: Transportation Insight, LLC | Class A Common Units                        
Schedule of Investments [Line Items]                        
Fair Value [3],[18] 0   0                  
Investment, Identifier [Axis]: Transportation Insight, LLC | Class A Preferred Units                        
Schedule of Investments [Line Items]                        
Fair Value [3],[18] 3,688,000   3,688,000                  
Investment, Identifier [Axis]: Transportation Insight, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[12],[13] 4,105,000   4,105,000                  
Investment, Identifier [Axis]: Transportation Insight, LLC | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value [6],[9],[19]           6,876,000            
Investment, Identifier [Axis]: Transportation Insight, LLC | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value [6],[9],[19]           26,000            
Investment, Identifier [Axis]: Transportation Insight, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 641,000 [3],[12],[13],[14]   641,000 [3],[12],[13],[14]     0 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Trident Maritime Systems, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 10,519,000 [3],[12],[13]   10,519,000 [3],[12],[13]     12,583,000 [6],[8],[9]            
Investment, Identifier [Axis]: Trintech, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [6],[9],[19]           6,798,000            
Investment, Identifier [Axis]: Trintech, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [6],[7],[9],[19]           151,000            
Investment, Identifier [Axis]: Turbo Buyer, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [6],[8],[9]           8,008,000            
Investment, Identifier [Axis]: Turnberry Solutions, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,717,000 [3],[13],[17]   4,717,000 [3],[13],[17]     4,824,000 [6],[9],[19]            
Investment, Identifier [Axis]: UBC Ledgers Holding AB | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 749,000 [2],[3],[13],[15]   749,000 [2],[3],[13],[15]     769,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: UBC Ledgers Holding AB | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 1,656,000 [2],[3],[13],[14],[58]   1,656,000 [2],[3],[13],[14],[58]     1,738,000 [5],[6],[7],[9],[59]            
Investment, Identifier [Axis]: UHY Advisors, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 13,297,000 [3],[12],[13],[14]   13,297,000 [3],[12],[13],[14]     8,295,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: UHY Advisors, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 740,000 [3],[12],[13],[14]   740,000 [3],[12],[13],[14]     1,013,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: UKFast Leaders Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 11,949,000 [2],[3],[13],[22]   11,949,000 [2],[3],[13],[22]     12,323,000 [5],[6],[9],[26]            
Investment, Identifier [Axis]: UNA 658 Equity Management GmbH | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [2],[3],[13],[14],[15] 1,281,000   1,281,000                  
Investment, Identifier [Axis]: US Bank National Association Series 2025-1 | Structured Note - Class R                        
Schedule of Investments [Line Items]                        
Fair Value 3,428,000 [2],[3],[12],[13]   3,428,000 [2],[3],[12],[13]     4,965,000 [5],[6],[8],[9]            
Investment, Identifier [Axis]: US Bank National Association Series 2025-2 | Structured Note - Class R                        
Schedule of Investments [Line Items]                        
Fair Value 3,462,000 [2],[13],[17]   3,462,000 [2],[13],[17]     4,594,000 [5],[9],[19]            
Investment, Identifier [Axis]: USLS Acquisition, Inc. (f/k/a US Legal Support, Inc.) | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 17,745,000 [3],[13],[17]   17,745,000 [3],[13],[17]     17,906,000 [6],[9],[19]            
Investment, Identifier [Axis]: Union Bidco Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,053,000 [2],[3],[13],[28]   1,053,000 [2],[3],[13],[28]     1,049,000 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Unither (Uniholding) | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 648,000 [2],[3],[13],[14],[15]   648,000 [2],[3],[13],[14],[15]     471,000 [5],[6],[7],[9],[16]            
Investment, Identifier [Axis]: Unosquare, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,175,000 [3],[13],[14],[17]   2,175,000 [3],[13],[14],[17]     2,362,000 [6],[7],[9],[19]            
Investment, Identifier [Axis]: Unosquare, LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 143,000 [3],[18]   143,000 [3],[18]     216,000 [6],[10]            
Investment, Identifier [Axis]: Unosquare, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (34,000) [3],[13],[14],[17]   (34,000) [3],[13],[14],[17]     (8,000) [6],[7],[9],[19]            
Investment, Identifier [Axis]: Utac Ceram | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 1,788,000 [2],[3],[13],[15]   1,788,000 [2],[3],[13],[15]     1,837,000 [5],[6],[9],[16]            
Investment, Identifier [Axis]: Utac Ceram | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 3,668,000 [2],[3],[12],[13]   3,668,000 [2],[3],[12],[13]     3,668,000 [5],[6],[8],[9]            
Investment, Identifier [Axis]: VB Spine Intermediary II LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 45,393,000 [3],[12],[13]   45,393,000 [3],[12],[13]     44,443,000 [6],[8],[9]            
Investment, Identifier [Axis]: VB Spine Intermediary II LLC | LLC Units                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[18]   0 [3],[18]     0 [6],[10]            
Investment, Identifier [Axis]: VOYA CLO 2015-2, LTD. | Subordinated Structured Notes                        
Schedule of Investments [Line Items]                        
Fair Value [5],[10],[11]           41,000            
Investment, Identifier [Axis]: VOYA CLO 2016-2, LTD. | Subordinated Structured Notes                        
Schedule of Investments [Line Items]                        
Fair Value [5],[10],[11]           1,000            
Investment, Identifier [Axis]: Velocity Pooling Vehicle, LLC | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 2,000 [3],[18]   2,000 [3],[18]     2,000 [6],[10],[11]            
Investment, Identifier [Axis]: Velocity Pooling Vehicle, LLC | Warrants                        
Schedule of Investments [Line Items]                        
Fair Value 3,000 [3],[18]   3,000 [3],[18]     3,000 [6],[10],[11]            
Investment, Identifier [Axis]: Victoria Bidco Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 3,960,000 [2],[3],[13],[28]   3,960,000 [2],[3],[13],[28]     4,013,000 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Vista Acquisition, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[14],[17] 8,669,000   8,669,000                  
Investment, Identifier [Axis]: Vista Acquisition, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value [3],[13],[14],[17] (9,000)   (9,000)                  
Investment, Identifier [Axis]: Vista Global Holding Ltd | Structured Secured Note - Class C                        
Schedule of Investments [Line Items]                        
Fair Value 469,000 [2]   469,000 [2]     482,000 [5]            
Investment, Identifier [Axis]: Vital Buyer, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 13,124,000 [3],[12],[13]   13,124,000 [3],[12],[13]     13,232,000 [6],[8],[9]            
Investment, Identifier [Axis]: Vital Buyer, LLC | Partnership Units                        
Schedule of Investments [Line Items]                        
Fair Value 594,000 [3],[18]   594,000 [3],[18]     566,000 [6]            
Investment, Identifier [Axis]: WEST-NR ACQUISITIONCO, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 13,193,000 [3],[12],[13],[14]   13,193,000 [3],[12],[13],[14]     10,900,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: WWEC Holdings III Corp | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 11,986,000 [3],[12],[13]   11,986,000 [3],[12],[13]     12,049,000 [6],[8],[9]            
Investment, Identifier [Axis]: WWEC Holdings III Corp | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value (10,000) [3],[12],[13],[14]   (10,000) [3],[12],[13],[14]     (15,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: Waccamaw River LLC                        
Schedule of Investments [Line Items]                        
Total contributed capital 30,280,000   30,280,000     30,280,000         $ 25,000,000.0  
Investment, Identifier [Axis]: Waccamaw River LLC | 20% Member Interest                        
Schedule of Investments [Line Items]                        
Fair Value 76,000 [2],[18],[35],[45]   76,000 [2],[18],[35],[45]     4,489,000 [5],[37],[46]            
Investment, Identifier [Axis]: Waccamaw River LLC | Member Interest                        
Schedule of Investments [Line Items]                        
Fair Value           4,489,000   10,730,000        
Investment, Identifier [Axis]: Whitcraft Holdings, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 13,018,000 [3],[12],[13]   13,018,000 [3],[12],[13]     12,845,000 [6],[7],[8],[9]            
Investment, Identifier [Axis]: Whitcraft Holdings, Inc. | LP Units                        
Schedule of Investments [Line Items]                        
Fair Value 1,527,000 [3],[18]   1,527,000 [3],[18]     1,164,000 [6],[10]            
Investment, Identifier [Axis]: Whitcraft Holdings, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 709,000 [3],[12],[13],[14]   709,000 [3],[12],[13],[14]     (17,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: White Bidco Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,257,000 [2],[3],[12],[13]   2,257,000 [2],[3],[12],[13]     2,247,000 [5],[6],[8],[9]            
Investment, Identifier [Axis]: Woodland Foods, LLC | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 1,962,000 [3],[18]   1,962,000 [3],[18]     1,815,000 [6],[10]            
Investment, Identifier [Axis]: Woodland Foods, LLC | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 17,032,000 [3],[12],[13]   17,032,000 [3],[12],[13]     17,036,000 [6],[9]            
Investment, Identifier [Axis]: Woodland Foods, LLC | Preferred Stock 1                        
Schedule of Investments [Line Items]                        
Fair Value 664,000 [3]   664,000 [3]     551,000 [6]            
Investment, Identifier [Axis]: Woodland Foods, LLC | Preferred Stock 2                        
Schedule of Investments [Line Items]                        
Fair Value 158,000 [3]   158,000 [3]     145,000 [6]            
Investment, Identifier [Axis]: Woodland Foods, LLC | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 1,375,000 [3],[12],[13],[14]   1,375,000 [3],[12],[13],[14]     (28,000) [6],[7],[8],[9]            
Investment, Identifier [Axis]: World 50, Inc. | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 13,637,000 [3],[13],[25]   13,637,000 [3],[13],[25]     13,757,000 [6],[9],[29]            
Investment, Identifier [Axis]: World 50, Inc. | Revolver                        
Schedule of Investments [Line Items]                        
Fair Value 0 [3],[13],[14],[25]   0 [3],[13],[14],[25]     0 [6],[7],[9],[29]            
Investment, Identifier [Axis]: Xeinadin Bidco Limited | Common Stock                        
Schedule of Investments [Line Items]                        
Fair Value 1,212,000 [2],[3],[18]   1,212,000 [2],[3],[18]     1,228,000 [5],[6],[10]            
Investment, Identifier [Axis]: Xeinadin Bidco Limited | First Lien Senior Secured Term Loan 1                        
Schedule of Investments [Line Items]                        
Fair Value 320,000 [2],[3],[13],[24]   320,000 [2],[3],[13],[24]     329,000 [5],[6],[9],[23]            
Investment, Identifier [Axis]: Xeinadin Bidco Limited | First Lien Senior Secured Term Loan 2                        
Schedule of Investments [Line Items]                        
Fair Value 9,340,000 [2],[3],[13],[28]   9,340,000 [2],[3],[13],[28]     9,465,000 [5],[6],[9],[27]            
Investment, Identifier [Axis]: Xeinadin Bidco Limited | Subordinated Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 4,727,000 [2],[3],[13],[28]   4,727,000 [2],[3],[13],[28]     4,431,000 [5],[6],[27]            
Investment, Identifier [Axis]: Zelda Luxco S.A.S | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 1,671,000 [2],[3],[13],[14],[24]   1,671,000 [2],[3],[13],[14],[24]     1,707,000 [5],[6],[7],[9],[23]            
Investment, Identifier [Axis]: Zeppelin Bidco Limited | First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Fair Value 2,663,000 [2],[3],[13],[28],[35]   2,663,000 [2],[3],[13],[28],[35]     2,565,000 [5],[6],[9],[27],[37]   0        
Investment, Identifier [Axis]: Zeppelin Bidco Limited | Ordinary Shares                        
Schedule of Investments [Line Items]                        
Fair Value $ 0 [2],[3],[18],[35]   $ 0 [2],[3],[18],[35]     82,000 [5],[6],[10],[37]            
Investment, Identifier [Axis]: Zeppelin Bidco Limited | Ordinary Shares(879 shares)                        
Schedule of Investments [Line Items]                        
Fair Value           $ 82,000   $ 0        
[1] Payment-in-kind (“PIK”) non-accrual investment..
[2] Investment is not a qualifying investment as defined under Section 55(a) of the 1940 Act. Non-qualifying assets represent 22.1% of total investments at fair value as of June 30, 2026. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. If at any time qualifying assets do not represent at least 70% of the Company’s total assets, the Company will be precluded from acquiring any additional non-qualifying asset until such time as it complies with the requirements of Section 55(a).
[3] The fair value of the investment was determined using significant unobservable inputs.
[4] PIK non-accrual investment.
[5] Investment is not a qualifying investment as defined under Section 55(a) of the 1940 Act. Non-qualifying assets represent 24.0% of total investments at fair value as of December 31, 2025. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. If at any time qualifying assets do not represent at least 70% of the Company’s total assets, the Company will be precluded from acquiring any additional non-qualifying asset until such time as it complies with the requirements of Section 55(a).
[6] The fair value of the investment was determined using significant unobservable inputs.
[7] Position or portion thereof is an unfunded loan or equity commitment.
[8] The interest rate on these loans is subject to 3 Month SOFR, which as of December 31, 2025 was 3.65166%.
[9] Debt investment includes interest rate floor feature.
[10] Investment is non-income producing.
[11] Investment was purchased as part of the Sierra Merger and is part of the Prior Sierra Reference Portfolio for purposes of the Prior Sierra Credit Support Agreement.
[12] The interest rate on these loans is subject to 3 Month SOFR, which as of June 30, 2026 was 3.73372%.
[13] Debt investment includes interest rate floor feature.
[14] Position or portion thereof is an unfunded loan or equity commitment.
[15] The interest rate on these loans is subject to 3 Month EURIBOR, which as of June 30, 2026 was 2.32400%.
[16] The interest rate on these loans is subject to 3 Month EURIBOR, which as of December 31, 2025 was 2.02600%.
[17] The interest rate on these loans is subject to 1 Month SOFR, which as of June 30, 2026 was 3.65197%.
[18] Investment is non-income producing.
[19] The interest rate on these loans is subject to 1 Month SOFR, which as of December 31, 2025 was 3.68751%.
[20] Non-accrual investment.
[21] Non-accrual investment.
[22] The interest rate on these loans is subject to 3 Month SONIA, which as of June 30, 2026 was 3.74700%.
[23] The interest rate on these loans is subject to 6 Month EURIBOR, which as of December 31, 2025 was 2.10700%.
[24] The interest rate on these loans is subject to 6 Month EURIBOR, which as of June 30, 2026 was 2.56800%.
[25] The interest rate on these loans is subject to 6 Month SOFR, which as of June 30, 2026 was 3.84940%.
[26] The interest rate on these loans is subject to 3 Month SONIA, which as of December 31, 2025 was 3.71660%.
[27] The interest rate on these loans is subject to 6 Month SONIA, which as of December 31, 2025 was 3.64430%.
[28] The interest rate on these loans is subject to 6 Month SONIA, which as of June 30, 2026 was 3.76300%.
[29] The interest rate on these loans is subject to 6 Month SOFR, which as of December 31, 2025 was 3.57418%.
[30] The interest rate on these loans is subject to 3 Month BBSY, which as of June 30, 2026 was 4.46150%.
[31] The interest rate on these loans is subject to 3 Month BBSY, which as of December 31, 2025 was 3.73750%.
[32] The interest rate on these loans is subject to 1 Month CORRA, which as of June 30, 2026 was 2.27952%.
[33] The interest rate on these loans is subject to 1 Month EURIBOR, which as of June 30, 2026 was 2.20100%.
[34] The interest rate on these loans is subject to 1 Month EURIBOR, which as of December 31, 2025 was 1.93900%.
[35] In accordance with the 1940 Act, the Company is deemed to be an “affiliated person” of the portfolio company as the Company owns at least 5% but not more than 25% of the portfolio company’s outstanding voting securities and does not otherwise control (“non-controlled affiliate”). Transactions related to investments in non-controlled “Affiliate Investments” for the six months ended June 30, 2026 were as follows:
December 31, 2025
Value		Gross Additions
(a)		Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)June 30,
2026
Value		Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Biolam(d)
First Lien Senior Secured Term Loan (EURIBOR + 4.50%, 6.6% PIK)(e)
$1,731 $— $— $— $(419)$1,312 $— 
Ordinary Shares
(42,639,498 shares)
— — — — — — — 
1,731 — — — (419)1,312 — 
Celebration Bidco, LLC(d)
First Lien Senior Secured Term Loan (SOFR + 8.00%, 11.7% Cash)
8,463 43 — — 72 8,578 512 
Common Stock
(1,243,071 shares)
8,925 — — — 1,430 10,355 — 
17,388 43 — — 1,502 18,933 512 
Coastal Marina Holdings, LLC(d)
Subordinated Term Loan
(8.0% Cash)
15,891 55 — — 55 16,001 714 
Subordinated Term Loan
(8.0% Cash)
7,327 20 — — 30 7,377 324 
LLC Units (3,518,097 units)
19,983 — — — 563 20,546 — 
43,201 75 — — 648 43,924 1,038 
December 31, 2025
Value		Gross Additions
(a)		Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)June 30,
2026
Value		Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Eclipse Business Capital, LLC(d)
First Lien Senior Secured Term Loan (SOFR + 6.60%, 10.2% Cash)
$— $3,333 $— $— $— $3,333 $33 
Revolver (SOFR + 6.60%, 10.2% Cash)
9,909 27,736 (24,757)— (9)12,879 501 
Second Lien Senior Secured Term Loan (7.5% Cash)
4,546 4 — — (4)4,546 176 
LLC units (89,447,396 units)
139,539 — — — — 139,539 8,067 
153,994 31,073 (24,757)— (13)160,297 8,777 
EMI Porta Holdco LLC(d)
First Lien Senior Secured Term Loan (SOFR + 5.50%, 9.1% Cash)
— 4,656 — — — 4,656 59 
Revolver (SOFR + 5.50%, 9.1% Cash)
— 127 (127)— — — 2 
Preferred Stock
(2,322,860 shares)
(12.0% PIK)
— 2,323 — — 46 2,369 — 
Common Stock
(6,017,772 shares)
— 3,004 — — (56)2,948 — 
— 10,110 (127)— (10)9,973 61 
Jocassee Partners LLC
9.1% Member Interest
37,986 — — — (4,806)33,180 5,709 
37,986 — — — (4,806)33,180 5,709 
Policy Services(d)
First Lien Senior Secured Term Loan (SOFR + 6.00%, 9.9% Cash, 4.0% PIK)
— 50,122 — — (226)49,896 1,995 
Class A Units
(251.4 units)
— — — — — — — 
Warrants - Class A
(2.5582 units)
— — — — — — — 
Warrants - Class B
(0.8634 units)
— — — — — — — 
Warrants - Class CC
(0.0888 units)
— — — — — — — 
Warrants - Class D
(0.2471 units)
— — — — — — 
— 50,122 — — (226)49,896 1,995 
Rocade Holdings LLC(d)
Second Lien Senior Secured Term Loan (SOFR + 8.00%, 11.7% Cash)
2,667 9,282 — — (19)11,930 329 
Preferred LP Units (71,000 units) (SOFR + 6.00%, 9.7% Cash)
89,450 4,270 (4,681)— 2 89,041 4,270 
Common LP Units (23.8 units)
3,596 — — — 1,091 4,687 1,236 
95,713 13,552 (4,681)— 1,074 105,658 5,835 
Sierra Senior Loan Strategy JV I LLC
89.01% Member Interest
16,404 — (16,437)— 33 — 223 
16,404 — (16,437)— 33 — 223 
Skyvault Holdings LLC(d)
First Lien Senior Secured Term Loan (12.0% Cash)
16,020 123 — — — 16,143 971 
LLC Units (5,381,304.8 units)
5,339 41 (2,140)— 1,763 5,003 1,899 
21,359 164 (2,140)— 1,763 21,146 2,870 
Thompson Rivers LLC
16.0% Member Interest
4,271 — (1,598)— 37 2,710 — 
4,271 — (1,598)— 37 2,710 — 
Waccamaw River LLC
20% Member Interest
4,489 — (4,406)— (7)76 161 
4,489 — (4,406)— (7)76 161 
December 31, 2025
Value		Gross Additions
(a)		Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)June 30,
2026
Value		Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Zeppelin Bidco Limited(d)
First Lien Senior Secured Term Loan (SONIA + 6.50%, 10.2% Cash)
$2,565 $140 $— $— $(42)$2,663 $139 
Ordinary Shares (879 shares)
82 — — — (82)— — 
2,647 140 — — (124)2,663 139 
Total Affiliate Investments$399,183 $105,279 $(54,146)$— $(548)$449,768 $27,320 
(a)     Gross additions include increases in the cost basis of investments resulting from new investments, follow-on investments, payment-in-kind interest or dividends, the amortization of any unearned income or discounts on debt investments, as applicable.
(b)    Gross reductions include decreases in the total cost basis of investments resulting from principal repayments, sales and return of capital.
(c) Represents the total amount of interest, fees or dividends credited to income for the portion of the year an investment was included in the Affiliate category.
(d) The fair value of the investment was determined using significant unobservable inputs.
(e) Non-accrual investment
[36] Non-accrual investment
[37] In accordance with the 1940 Act, the Company is deemed to be an “affiliated person” of the portfolio company as the Company owns at least 5% but not more than 25% of the portfolio company’s outstanding voting securities and does not otherwise control (“non-controlled affiliate”). Transactions related to investments in non-controlled “Affiliate Investments” for the year ended December 31, 2025 were as follows:
December 31, 2024
Value		Gross Additions
(a)		Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)December 31,
2025
 Value		Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Biolam(d)
First Lien Senior Secured Term Loan (EURIBOR + 4.50%, 6.5% PIK)(e)
$— $1,258 $(128)$44 $557 $1,731 $(27)
Ordinary Shares
(42,639,498 shares)
— — — — — — — 
— 1,258 (128)44 557 1,731 (27)
Celebration Bidco, LLC(d)
First Lien Senior Secured Term Loan (SOFR + 8.00%, 11.7% PIK)
6,414 2,266 — — (217)8,463 987 
Common Stock
(1,243,071 shares)
11,262 — — — (2,337)8,925 — 
17,676 2,266 — — (2,554)17,388 987 
Coastal Marina Holdings, LLC(d)
Subordinated Term Loan
(8.0% Cash)
15,770 103 — — 18 15,891 1,432 
Subordinated Term Loan
(8.0% Cash)
7,271 38 — — 18 7,327 650 
LLC Units (3,518,097 units)
16,852 — — — 3,131 19,983 — 
39,893 141 — — 3,167 43,201 2,082 
Eclipse Business Capital, LLC(d)
Revolver (SOFR + 6.50%, 10.3% Cash)
10,091 8,650 (8,820)— (12)9,909 1,116 
Second Lien Senior Secured Term Loan (7.5% Cash)
4,545 7 — — (6)4,546 354 
LLC units (89,447,396 units)
136,855 23 — — 2,661 139,539 16,551 
151,491 8,680 (8,820)— 2,643 153,994 18,021 
December 31, 2024
Value		Gross Additions
(a)		Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)December 31,
2025
 Value		Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Jocassee Partners LLC
9.1% Member Interest
$40,761 $— $— $— $(2,775)$37,986 $5,709 
40,761 — — — (2,775)37,986 5,709 
Rocade Holdings LLC(d)
Second Lien Senior Secured Term Loan (SOFR + 8.00%, 11.9% Cash)
— 2,671 — — (4)2,667 38 
Preferred LP Units (71,000 units) (SOFR + 6.00%, 9.9% PIK)
83,000 8,818 (2,355)— (13)89,450 8,818 
Common LP Units (23.8 units)
243 — — — 3,353 3,596 308 
83,243 11,489 (2,355)— 3,336 95,713 9,164 
Sierra Senior Loan Strategy JV I LLC
89.01% Member Interest
41,453 — (20,472)— (4,577)16,404 7,121 
41,453 — (20,472)— (4,577)16,404 7,121 
Skyvault Holdings LLC(d)
First Lien Senior Secured Term Loan (12.0% Cash)
3,586 12,615 (181)— — 16,020 1,409 
LLC Units (5,340,186.4 units)
1,195 4,153 — — (9)5,339 — 
4,781 16,768 (181)— (9)21,359 1,409 
Thompson Rivers LLC
16.0% Member Interest
7,208 — (2,876)— (61)4,271 — 
7,208 — (2,876)— (61)4,271 — 
Waccamaw River LLC
20% Member Interest
10,730 — (5,843)— (398)4,489 907 
10,730 — (5,843)— (398)4,489 907 
Zeppelin Bidco Limited(d)
First Lien Senior Secured Term Loan (SONIA + 6.50%, 10.5% Cash)
— 2,826 (13)(4,835)4,587 2,565 111 
Ordinary Shares
(879 shares)
— — — — 82 82 — 
— 2,826 (13)(4,835)4,669 2,647 111 
Total Affiliate Investments$397,236 $43,428 $(40,688)$(4,791)$3,998 $399,183 $45,484 

(a)     Gross additions include increases in the cost basis of investments resulting from new investments, follow-on investments, payment-in-kind interest or dividends, the amortization of any unearned income or discounts on debt investments, as applicable.
(b)    Gross reductions include decreases in the total cost basis of investments resulting from principal repayments, sales and return of capital.
(c) Represents the total amount of interest, fees or dividends credited to income for the portion of the year an investment was included in the Affiliate category.
(d) The fair value of the investment was determined using significant unobservable inputs.
(e) Non-accrual investment
[38] Non-accrual investment
[39] Non-accrual investment.
[40] The interest rate on these loans is subject to 3 Month CORRA, which as of June 30, 2026 was 2.34000%.
[41] The interest rate on these loans is subject to 3 Month CORRA, which as of December 31, 2025 was 2.30000%.
[42] The interest rate on these loans is subject to 3 Month BKBM, which as of June 30, 2026 was 2.68000%.
[43] The interest rate on these loans is subject to 3 Month BKBM, which as of December 31, 2025 was 2.49000%.
[44] The interest rate on these loans is subject to 1 Month SARON, which as of December 31, 2025 was -0.04570%.
[45] Portfolio company does not issue shares or units; member interest is based on commitments.
[46] Portfolio company does not issue shares or units, member interest is based on commitments.
[47] Investment was purchased as part of the Sierra Merger and is part of the New Sierra Reference Portfolio for purposes of the New Sierra Credit Support Agreement.
[48] Investment was purchased from MVC Capital, Inc. (“MVC”) in connection with the MVC Acquisition (as defined in “Note 2. Agreements and Related Party Transactions”).
[49] As defined in the 1940 Act, the Company is deemed to be both an “affiliated person” and “control” the portfolio company because it owns more than 25% of the portfolio company’s outstanding voting securities or it has the power to exercise control over the management or policies of such portfolio company (including through a management agreement). Transactions as of and during the year ended December 31, 2025 in which the portfolio company is deemed to be a “Control Investment” of the Company were as follows:
December 31, 2024
Value		Gross Additions
(a)		Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)December 31, 2025
Value		Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Black Angus Steakhouses, LLC(d)
First Lien Senior Secured Term Loan (14.4% PIK)(e)
$2,744 $— $(610)$(7,481)$5,347 $— $(6)
First Lien Senior Secured Term Loan (10.0% PIK)(e)
— — — (9,628)9,628 — — 
LLC Units (44.6 units)
— — — — — — — 
2,744 — (610)(17,109)14,975 — (6)
MVC Automotive Group GmbH(d)
First Lien Senior Secured Term Loan (7.0% Cash)
— 2,338 (2,341)3 — — 85 
Common Equity Interest (18,000 Shares)
13,741 4,000 — — (3,598)14,143 — 
13,741 6,338 (2,341)3 (3,598)14,143 85 
MVC Private Equity Fund LP
General Partnership Interest
(1,831.4 units)
— — — (183)183 — — 
Limited Partnership Interest
(71,790.4 units)
11 — (116)(7,166)7,271 — — 
11 — (116)(7,349)7,454 — — 
Security Holdings B.V(d)
Bridge Loan (5.0% PIK)
6,655 342 — — — 6,997 342 
Revolver (6.0% Cash)
5,333 165 (3)2 728 6,225 379 
Senior Unsecured Term Loan (6.0% Cash, 9.0% PIK)
2,293 299 — — 317 2,909 474 
Senior Subordinated Term Loan (3.1% PIK)
11,191 374 — — — 11,565 360 
Common Stock Series A (17,100 shares)
399 — — — 37 436 — 
Common Stock Series B (1,236 shares)
37,296 — — — 3,406 40,702 2,817 
63,167 1,180 (3)2 4,488 68,834 4,372 
Total Control Investments$79,663 $7,518 $(3,070)$(24,453)$23,319 $82,977 $4,451 
(a) Gross additions include increases in the cost basis of investments resulting from new investments, follow-on investments, payment-in-kind interest or dividends, the amortization of any unearned income or discounts on debt investments, as applicable.
(b)     Gross reductions include decreases in the total cost basis of investments resulting from principal repayments, sales and return of capital.
(c)    Represents the total amount of interest, fees or dividends credited to income for the portion of the year an investment was included in the Control category.
(d) The fair value of the investment was determined using significant unobservable inputs.
(e) Non-accrual investment.
[50] As defined in the 1940 Act, the Company is deemed to be both an “affiliated person” and “control” the portfolio company because it owns more than 25% of the portfolio company’s outstanding voting securities or it has the power to exercise control over the management or policies of such portfolio company (including through a management agreement). Transactions as of and during the six months ended June 30, 2026 in which the portfolio company is deemed to be a “Control Investment” of the Company were as follows:
December 31, 2025
Value		Gross Additions
(a)		Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)June 30,
2026
Value		Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
MVC Automotive Group GmbH(d)
First Lien Senior Secured Term Loan (EURIBOR + 7.65%, 9.9% Cash)
$— $5,582 $(3,733)$(63)$(70)$1,716 $155 
First Lien Senior Secured Term Loan (7.7% Cash)
— 3,100 — — (13)3,087 27 
Common Equity Interest (25,404 Shares)
14,143 — — — (5,696)8,447 — 
14,143 8,682 (3,733)(63)(5,779)13,250 182 
Security Holdings B.V(d)
Bridge Loan (5.0% PIK)
6,997 176 — — — 7,173 176 
Revolver (6.0% PIK)
6,225 5,179 — (6)(414)10,984 279 
Senior Subordinated Term Loan (3.1% PIK)
11,565 182 — — — 11,747 182 
Senior Unsecured Term Loan (15.0% PIK)
2,909 218 — — (78)3,049 226 
Common Stock Series A (17,100 shares)
436 — — — 11 447 — 
Common Stock Series B (1,236 shares)
40,702 — — — 1,039 41,741 — 
68,834 5,755 — (6)558 75,141 863 
Total Control Investments$82,977 $14,437 $(3,733)$(69)$(5,221)$88,391 $1,045 
(a) Gross additions include increases in the cost basis of investments resulting from new investments, follow-on investments, payment-in-kind interest or dividends, the amortization of any unearned income or discounts on debt investments, as applicable.
(b)     Gross reductions include decreases in the total cost basis of investments resulting from principal repayments, sales and return of capital.
(c)    Represents the total amount of interest, fees or dividends credited to income for the portion of the year an investment was included in the Control category.
(d) The fair value of the investment was determined using significant unobservable inputs.
[51] The interest rate on these loans is subject to 1 Month NIBOR, which as of June 30, 2026 was 4.36000%.
[52] The interest rate on these loans is subject to 1 Month NIBOR, which as of December 31, 2025 was 3.89000%.
[53] The interest rate on these loans is subject to 6 Month BBSY, which as of December 31, 2025 was 4.12100%.
[54] The interest rate on these loans is subject to 1 Month BBSY, which as of June 30, 2026 was 4.31030%.
[55] The interest rate on these loans is subject to 1 Month BBSY, which as of December 31, 2025 was 3.55000%.
[56] The interest rate on these loans is subject to 3 Month SARON, which as of June 30, 2026 was -0.04220%
[57] The interest rate on these loans is subject to 3 Month SARON, which as of December 31, 2025 was -0.04360%.
[58] The interest rate on these loans is subject to 3 Month STIBOR, which as of June 30, 2026 was 1.97200%.
[59] The interest rate on these loans is subject to 3 Month STIBOR, which as of December 31, 2025 was 1.95800%.