v3.26.3
INVESTMENTS - Waccamaw River LLC (Details)
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
loan
Dec. 31, 2024
USD ($)
Feb. 08, 2021
USD ($)
May 13, 2020
USD ($)
Schedule of Investments [Line Items]                
Total dividend income $ 11,372,000 $ 14,177,000 $ 37,298,000 $ 39,512,000        
Fair value 2,509,771,000   2,509,771,000   $ 2,398,524,000      
Waccamaw River, LLC                
Schedule of Investments [Line Items]                
Total dividend income   200,000 200,000 700,000        
Distributions recognized as a return of capital   1,600,000 4,400,000 4,900,000        
Investment owned, outstanding loans | loan         4,270      
Average loan amount         $ 6,800      
Investment company, remaining average life to maturity         30 months 24 days      
Investment owned, weighted average yield rate         12.60%      
Waccamaw River, LLC | Consumer Loan                
Schedule of Investments [Line Items]                
Fair value         $ 28,900,000      
Waccamaw River, LLC | Cash and Cash Equivalents                
Schedule of Investments [Line Items]                
Fair value         2,500,000      
All Member Of Waccamaw River LLC                
Schedule of Investments [Line Items]                
Total contributed capital 125,000,000.0   125,000,000.0          
Waccamaw River, LLC                
Schedule of Investments [Line Items]                
Dividends 0 $ 9,000,000.0 22,800,000 $ 28,400,000        
Investment, Identifier [Axis]: A.T. Holdings II LTD | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 9,375,000 [1],[2],[3]   9,375,000 [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]: AFT Fastener Holdings, LLC | Class A1 Preferred Units                
Schedule of Investments [Line Items]                
Fair value [3],[10] 352,000   352,000          
Investment, Identifier [Axis]: AFT Fastener Holdings, LLC | Class B Common Units                
Schedule of Investments [Line Items]                
Fair value [3],[10] 0   0          
Investment, Identifier [Axis]: AFT Fastener Holdings, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 10,470,000   10,470,000          
Investment, Identifier [Axis]: AFT Fastener Holdings, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (18,000)   (18,000)          
Investment, Identifier [Axis]: AIT Worldwide Logistics Holdings, Inc. | Partnership Units                
Schedule of Investments [Line Items]                
Fair value [6],[14]         785,000      
Investment, Identifier [Axis]: AMMC CLO 22, Limited Series 2018-22A | Subordinated Structured Notes                
Schedule of Investments [Line Items]                
Fair value [5],[6],[14],[15]         0      
Investment, Identifier [Axis]: AMP Purchaser, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12] 5,708,000   5,708,000          
Investment, Identifier [Axis]: AMP Purchaser, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (3,000)   (3,000)          
Investment, Identifier [Axis]: APC1 Holding | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,612,000 [2],[3],[12],[16]   2,612,000 [2],[3],[12],[16]   2,701,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: ARC Interco Purchaser, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 6,949,000 [3],[11],[12],[13]   6,949,000 [3],[11],[12],[13]   2,974,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: ARC Interco Purchaser, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 345,000 [3],[10]   345,000 [3],[10]   122,000 [6],[14]      
Investment, Identifier [Axis]: ARC Interco Purchaser, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (16,000) [3],[11],[12],[13]   (16,000) [3],[11],[12],[13]   (7,000) [6],[7],[8],[9]      
Investment, Identifier [Axis]: ASC Communications, LLC | Class A Units                
Schedule of Investments [Line Items]                
Fair value 1,068,000 [3]   1,068,000 [3]   880,000 [6]      
Investment, Identifier [Axis]: ASC Communications, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,401,000 [3],[12],[18]   4,401,000 [3],[12],[18]   5,171,000 [6],[9],[19]      
Investment, Identifier [Axis]: ASC Communications, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (2,000) [3],[12],[13],[18]   (2,000) [3],[12],[13],[18]   (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 18,812,000 [3],[11],[12]   18,812,000 [3],[11],[12]   18,939,000 [6],[8],[9]      
Investment, Identifier [Axis]: ATL II MRO Holdings Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value (28,000) [3],[11],[12],[13]   (28,000) [3],[11],[12],[13]   (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],[12],[18] 8,510,000   8,510,000          
Investment, Identifier [Axis]: AWP Group Holdings, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[12],[13],[18] 434,000   434,000          
Investment, Identifier [Axis]: Accelerant Holdings | Common Stock                
Schedule of Investments [Line Items]                
Fair value 5,509,000 [10]   5,509,000 [10]   4,110,000 [14]      
Investment, Identifier [Axis]: Accelevation LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [6],[7],[9],[19]         1,221,000      
Investment, Identifier [Axis]: Accelevation LLC | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value [3],[12],[18] 4,949,000   4,949,000          
Investment, Identifier [Axis]: Accelevation LLC | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value [3],[12],[13],[18] 1,430,000   1,430,000          
Investment, Identifier [Axis]: Accelevation LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[12],[13],[18]   0 [3],[12],[13],[18]   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 [5],[6]         234,000      
Investment, Identifier [Axis]: Accurus Aerospace Corporation | Common Stock                
Schedule of Investments [Line Items]                
Fair value 394,000 [3],[10]   394,000 [3],[10]   149,000 [6],[14]      
Investment, Identifier [Axis]: Accurus Aerospace Corporation | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [6],[8],[9]         12,951,000      
Investment, Identifier [Axis]: Accurus Aerospace Corporation | LLC Units                
Schedule of Investments [Line Items]                
Fair value 16,000 [3],[10]   16,000 [3],[10]   6,000 [6],[14]      
Investment, Identifier [Axis]: Accurus Aerospace Corporation | Revolver                
Schedule of Investments [Line Items]                
Fair value [6],[7],[8],[9]         270,000      
Investment, Identifier [Axis]: Acogroup | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 1,317,000 [2],[3],[12],[16],[20]   1,317,000 [2],[3],[12],[16],[20]   3,349,000 [5],[6],[9],[17],[21]      
Investment, Identifier [Axis]: Adhefin International | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,287,000 [2],[3],[12],[13],[16]   2,287,000 [2],[3],[12],[13],[16]   2,311,000 [5],[6],[7],[9],[17]      
Investment, Identifier [Axis]: Advantage Software Company (The), LLC | Class A1 Partnership Units                
Schedule of Investments [Line Items]                
Fair value 219,000 [3],[10]   219,000 [3],[10]   379,000 [6],[14]      
Investment, Identifier [Axis]: Advantage Software Company (The), LLC | Class A2 Partnership Units                
Schedule of Investments [Line Items]                
Fair value 57,000 [3],[10]   57,000 [3],[10]   98,000 [6],[14]      
Investment, Identifier [Axis]: Advantage Software Company (The), LLC | Class B1 Partnership Units                
Schedule of Investments [Line Items]                
Fair value 0 [3],[10]   0 [3],[10]   0 [6],[14]      
Investment, Identifier [Axis]: Advantage Software Company (The), LLC | Class B2 Partnership Units                
Schedule of Investments [Line Items]                
Fair value 0 [3],[10]   0 [3],[10]   0 [6],[14]      
Investment, Identifier [Axis]: Aegros Holdco 2 Ltd | Common Stock                
Schedule of Investments [Line Items]                
Fair value 685,000 [2],[3],[10]   685,000 [2],[3],[10]   610,000 [5],[6],[14]      
Investment, Identifier [Axis]: Aegros Holdco 2 Ltd | Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 5,154,000 [2],[3],[12],[22]   5,154,000 [2],[3],[12],[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 3,991,000 [3],[11],[12],[13]   3,991,000 [3],[11],[12],[13]   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 3,256,000 [3],[11],[12]   3,256,000 [3],[11],[12]   3,249,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: AirX Climate Solutions, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[11],[12],[13]   0 [3],[11],[12],[13]   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 5,329,000 [2],[3],[12],[23]   5,329,000 [2],[3],[12],[23]   5,510,000 [5],[6],[9],[24]      
Investment, Identifier [Axis]: Alpha Holdings LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 2,595,000   2,595,000          
Investment, Identifier [Axis]: Alpha Holdings LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value [3],[10] 403,000   403,000          
Investment, Identifier [Axis]: Alpha Holdings LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (13,000)   (13,000)          
Investment, Identifier [Axis]: Amalfi Midco | Class B Common Stock                
Schedule of Investments [Line Items]                
Fair value 2,628,000 [2],[3],[10]   2,628,000 [2],[3],[10]   2,661,000 [5],[6],[14]      
Investment, Identifier [Axis]: Amalfi Midco | Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 399,000 [2],[3]   399,000 [2],[3]   361,000 [5],[6]      
Investment, Identifier [Axis]: Amalfi Midco | Subordinated Loan Notes                
Schedule of Investments [Line Items]                
Fair value 4,038,000 [2],[3]   4,038,000 [2],[3]   6,575,000 [5],[6]      
Investment, Identifier [Axis]: Amalfi Midco | Warrants                
Schedule of Investments [Line Items]                
Fair value 1,349,000 [2],[3],[10]   1,349,000 [2],[3],[10]   1,167,000 [5],[6],[14]      
Investment, Identifier [Axis]: Americo Chemical Products, LLC | Common Stock                
Schedule of Investments [Line Items]                
Fair value 101,000 [3],[10]   101,000 [3],[10]   108,000 [6],[14]      
Investment, Identifier [Axis]: Americo Chemical Products, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,772,000 [3],[12],[18]   4,772,000 [3],[12],[18]   4,875,000 [6],[9],[19]      
Investment, Identifier [Axis]: Americo Chemical Products, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (4,000) [3],[12],[13],[18]   (4,000) [3],[12],[13],[18]   (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 6,038,000 [2],[3],[12],[23]   6,038,000 [2],[3],[12],[23]   6,225,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: AnalytiChem Holding GmbH | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value 1,015,000 [2],[3],[12],[25]   1,015,000 [2],[3],[12],[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 3,393,000 [2],[3],[12],[22]   3,393,000 [2],[3],[12],[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 420,000 [2],[3]   420,000 [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],[15]         2,755,000      
Investment, Identifier [Axis]: Application Boot Camp LLC | Common Stock                
Schedule of Investments [Line Items]                
Fair value 319,000 [3]   319,000 [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],[11],[12]   1,217,000 [3],[11],[12]   1,201,000 [6],[8],[9]      
Investment, Identifier [Axis]: Application Boot Camp LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[11],[12],[13]   0 [3],[11],[12],[13]   (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],[10]   0 [2],[3],[10]   0 [5],[6],[14]      
Investment, Identifier [Axis]: Aptus 1829. GmbH | Preferred Stock                
Schedule of Investments [Line Items]                
Fair value 87,000 [2],[3],[10]   87,000 [2],[3],[10]   68,000 [5],[6],[14]      
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 957,000 [2],[3],[12],[13],[23]   957,000 [2],[3],[12],[13],[23]   962,000 [5],[6],[7],[9],[24]      
Investment, Identifier [Axis]: Arch Global Precision LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 8,341,000 [3],[11],[12]   8,341,000 [3],[11],[12]   8,376,000 [6],[8],[9]      
Investment, Identifier [Axis]: Archimede | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 5,683,000 [2],[3],[12],[16]   5,683,000 [2],[3],[12],[16]   6,354,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: Argus Bidco Limited | Class B Common Stock                
Schedule of Investments [Line Items]                
Fair value [2],[3],[10] 5,000   5,000          
Investment, Identifier [Axis]: Argus Bidco Limited | Common Stock                
Schedule of Investments [Line Items]                
Fair value 0 [2],[3],[10]   0 [2],[3],[10]   0 [5],[6],[14]      
Investment, Identifier [Axis]: Argus Bidco Limited | Equity Loan Notes                
Schedule of Investments [Line Items]                
Fair value 20,000 [2],[3]   20,000 [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 1,449,000 [2],[3],[12],[22]   1,449,000 [2],[3],[12],[22]   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 2,045,000 [2],[3],[12],[23]   2,045,000 [2],[3],[12],[23]   2,042,000 [5],[6],[9],[24]      
Investment, Identifier [Axis]: Argus Bidco Limited | First Lien Senior Secured Term Loan 3                
Schedule of Investments [Line Items]                
Fair value 132,000 [2],[3],[12],[25]   132,000 [2],[3],[12],[25]   127,000 [5],[6],[9],[28]      
Investment, Identifier [Axis]: Argus Bidco Limited | Ordinary Shares                
Schedule of Investments [Line Items]                
Fair value [2],[3],[10] 0   0          
Investment, Identifier [Axis]: Argus Bidco Limited | Preferred Stock                
Schedule of Investments [Line Items]                
Fair value 20,000 [2],[3]   20,000 [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 747,000 [2],[3]   747,000 [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 3,797,000 [3],[11],[12],[13]   3,797,000 [3],[11],[12],[13]   3,732,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Argus Intermediate, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 157,000 [3],[11],[12],[13]   157,000 [3],[11],[12],[13]   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],[28]         6,407,000      
Investment, Identifier [Axis]: Armstrong Transport Group (Pele Buyer, LLC) | Revolver                
Schedule of Investments [Line Items]                
Fair value [6],[7],[9],[28]         (3,000)      
Investment, Identifier [Axis]: Armstrong Transport Group, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 7,119,000   7,119,000          
Investment, Identifier [Axis]: Armstrong Transport Group, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 450,000   450,000          
Investment, Identifier [Axis]: Artemis Bidco Limited | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 622,000 [2],[3],[12],[13],[16]   622,000 [2],[3],[12],[13],[16]   618,000 [5],[6],[7],[9],[17]      
Investment, Identifier [Axis]: Astra Bidco Limited | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value 425,000 [2],[3],[12],[16]   425,000 [2],[3],[12],[16]   449,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: Astra Bidco Limited | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value 2,520,000 [2],[3],[12],[29]   2,520,000 [2],[3],[12],[29]   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 1,590,000 [2],[3],[12],[16]   1,590,000 [2],[3],[12],[16]   1,562,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: Auxi International | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value 890,000 [2],[3],[12],[22]   890,000 [2],[3],[12],[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 1,678,000 [2],[3],[12],[13],[30]   1,678,000 [2],[3],[12],[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 404,000 [3],[10]   404,000 [3],[10]   304,000 [6],[14]      
Investment, Identifier [Axis]: Azalea Buyer, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,701,000 [3],[12],[18]   4,701,000 [3],[12],[18]   4,738,000 [6],[9],[19]      
Investment, Identifier [Axis]: Azalea Buyer, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[12],[13],[18]   0 [3],[12],[13],[18]   0 [6],[7],[9],[19]      
Investment, Identifier [Axis]: Azalea Buyer, Inc. | Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,231,000 [3]   2,231,000 [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],[12],[13],[32] 1,216,000   1,216,000          
Investment, Identifier [Axis]: BCTS Parent, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[13],[32] 245,000   245,000          
Investment, Identifier [Axis]: BKF Buyer, Inc. | Common Stock                
Schedule of Investments [Line Items]                
Fair value 1,235,000 [3],[10]   1,235,000 [3],[10]   1,145,000 [6],[14]      
Investment, Identifier [Axis]: BKF Buyer, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,125,000 [3],[12],[13],[18]   4,125,000 [3],[12],[13],[18]   7,988,000 [6],[9],[19]      
Investment, Identifier [Axis]: BKF Buyer, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value (36,000) [3],[12],[13],[18]   (36,000) [3],[12],[13],[18]   (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 2,545,000 [3],[11],[12],[13]   2,545,000 [3],[11],[12],[13]   2,547,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: BLI Buyer, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 43,000 [3],[11],[12],[13]   43,000 [3],[11],[12],[13]   (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 [6],[9],[33]         10,598,000      
Investment, Identifier [Axis]: BNI Intermediate Holdings, LLC | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value [3],[12],[16] 11,966,000   11,966,000          
Investment, Identifier [Axis]: BNI Intermediate Holdings, LLC | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 166,000   166,000          
Investment, Identifier [Axis]: BNI Intermediate Holdings, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (30,000)   (30,000)          
Investment, Identifier [Axis]: BPG Holdings IV Corp | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 9,603,000 [3],[11],[12],[20]   9,603,000 [3],[11],[12],[20]   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],[12],[22] 19,838,000   19,838,000          
Investment, Identifier [Axis]: Balaena Maritime (UK) Limited | Warrants                
Schedule of Investments [Line Items]                
Fair value [2],[3],[10] 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],[17],[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],[17]         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],[17]         376,000      
Investment, Identifier [Axis]: Basin Innovation Group, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 7,939,000 [3],[12],[18]   7,939,000 [3],[12],[18]   7,665,000 [6],[7],[9],[28]      
Investment, Identifier [Axis]: Basin Innovation Group, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (15,000) [3],[12],[13],[18]   (15,000) [3],[12],[13],[18]   0 [6],[7],[9],[28]      
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 7,812,000 [2],[3],[12],[23]   7,812,000 [2],[3],[12],[23]   8,188,000 [5],[6],[9],[24]      
Investment, Identifier [Axis]: Biolam Group | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [34] 0   0   1,731,000 [5],[6],[9],[21],[24],[35]      
Investment, Identifier [Axis]: Biolam Group | Ordinary Shares                
Schedule of Investments [Line Items]                
Fair value 0   0   0 [5],[6],[14],[35]      
Investment, Identifier [Axis]: Biolam | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [36]         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 4,957,000 [3],[12],[13],[18]   4,957,000 [3],[12],[13],[18]   4,830,000 [6],[9],[19]      
Investment, Identifier [Axis]: Bishop Street Underwriters, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 349,000 [3]   349,000 [3]   361,000 [6],[14]      
Investment, Identifier [Axis]: Bitly, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,283,000 [3],[12],[18]   2,283,000 [3],[12],[18]   4,763,000 [6],[8],[9]      
Investment, Identifier [Axis]: Bitly, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value (1,000) [3],[12],[13],[18]   (1,000) [3],[12],[13],[18]   (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 [37]         0 0    
Investment, Identifier [Axis]: Black Angus Steakhouses, LLC | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value [37]         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 4,030,000 [3],[11],[12]   4,030,000 [3],[11],[12]   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 2,137,000 [3],[11],[12]   2,137,000 [3],[11],[12]   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 2,163,000 [3],[11],[12]   2,163,000 [3],[11],[12]   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 2,163,000 [3],[11],[12]   2,163,000 [3],[11],[12]   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],[11],[12] 2,353,000   2,353,000          
Investment, Identifier [Axis]: Breeze Aviation Group Inc | Second Lien Senior Secured Term Loan 5                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12] 2,353,000   2,353,000          
Investment, Identifier [Axis]: Breeze Aviation Group Inc | Second Lien Senior Secured Term Loan 6                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12] 2,353,000   2,353,000          
Investment, Identifier [Axis]: Bridger Aerospace Group Holdings, LLC | Preferred Stock- Series C                
Schedule of Investments [Line Items]                
Fair value 16,911,000 [3]   16,911,000 [3]   16,336,000 [6]      
Investment, Identifier [Axis]: BrightSign LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,983,000 [3],[12],[18]   4,983,000 [3],[12],[18]   5,023,000 [6],[9],[19]      
Investment, Identifier [Axis]: BrightSign LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 1,694,000 [3]   1,694,000 [3]   1,384,000 [6]      
Investment, Identifier [Axis]: BrightSign LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 576,000 [3],[12],[13],[18]   576,000 [3],[12],[13],[18]   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 15,364,000 [2],[3],[12],[29]   15,364,000 [2],[3],[12],[29]   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 1,840,000 [2],[3],[12],[13],[29]   1,840,000 [2],[3],[12],[13],[29]   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 2,513,000 [3],[11],[12],[13]   2,513,000 [3],[11],[12],[13]   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],[10]   387,000 [3],[10]   312,000 [6],[14]      
Investment, Identifier [Axis]: Broadway Buyer, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 90,000 [3],[11],[12],[13]   90,000 [3],[11],[12],[13]   (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 [6],[8],[9]         5,513,000      
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation | LP Units                
Schedule of Investments [Line Items]                
Fair value 423,000 [3],[10]   423,000 [3],[10]   334,000 [6],[14]      
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation | Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,295,000 [3],[11],[12]   4,295,000 [3],[11],[12]   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 6,042,000 [3],[11],[12],[13]   6,042,000 [3],[11],[12],[13]   5,953,000 [6],[7],[9],[28]      
Investment, Identifier [Axis]: CCFF Buyer, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 279,000 [3],[10]   279,000 [3],[10]   262,000 [6],[14]      
Investment, Identifier [Axis]: CCFF Buyer, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 172,000 [3],[11],[12],[13]   172,000 [3],[11],[12],[13]   (8,000) [6],[7],[9],[28]      
Investment, Identifier [Axis]: CEC Entertainment, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 3,372,000 [3],[11],[12]   3,372,000 [3],[11],[12]   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 13,436,000 [3],[11],[12]   13,436,000 [3],[11],[12]   13,515,000 [6],[8],[9]      
Investment, Identifier [Axis]: CGI Parent, LLC | Preferred Stock                
Schedule of Investments [Line Items]                
Fair value 1,978,000 [3],[10]   1,978,000 [3],[10]   1,947,000 [6],[14]      
Investment, Identifier [Axis]: CGI Parent, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[11],[12],[13]   0 [3],[11],[12],[13]   0 [6],[7],[8],[9]      
Investment, Identifier [Axis]: CH Buyer, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 868,000 [3],[11],[12]   868,000 [3],[11],[12]   872,000 [6],[8],[9]      
Investment, Identifier [Axis]: CH Buyer, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 86,000 [3],[10]   86,000 [3],[10]   78,000 [6],[14]      
Investment, Identifier [Axis]: CH Buyer, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[11],[12],[13]   0 [3],[11],[12],[13]   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 6,635,000 [3],[11],[12]   6,635,000 [3],[11],[12]   11,452,000 [6],[9],[28]      
Investment, Identifier [Axis]: CMT Opco Holding, LLC (Concept Machine) | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12] 4,084,000   4,084,000          
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],[10]   0 [3],[10]   0 [6],[14]      
Investment, Identifier [Axis]: CTA Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[12],[13],[18] 5,475,000   5,475,000          
Investment, Identifier [Axis]: CTA Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[12],[13],[18] (18,000)   (18,000)          
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC | Common Stock                
Schedule of Investments [Line Items]                
Fair value 1,597,000 [3],[10]   1,597,000 [3],[10]   1,518,000 [6],[14]      
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 10,945,000 [3],[11],[12]   10,945,000 [3],[11],[12]   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 2,669,000 [3],[11],[12]   2,669,000 [3],[11],[12]   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 958,000 [3],[11],[12]   958,000 [3],[11],[12]   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 5,415,000 [3],[11],[12]   5,415,000 [3],[11],[12]   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 754,000 [3],[11],[12]   754,000 [3],[11],[12]   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 3,812,000 [2],[3],[11],[12]   3,812,000 [2],[3],[11],[12]   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 5,133,000 [3],[11],[12],[13]   5,133,000 [3],[11],[12],[13]   5,173,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: CW Group Holdings, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 474,000 [3],[10]   474,000 [3],[10]   500,000 [6],[14]      
Investment, Identifier [Axis]: Cadence, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 11,014,000   11,014,000          
Investment, Identifier [Axis]: Cadence, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (26,000)   (26,000)          
Investment, Identifier [Axis]: Caldwell & Gregory LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 14,595,000 [3],[11],[12]   14,595,000 [3],[11],[12]   14,308,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Caldwell & Gregory LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (31,000) [3],[11],[12],[13]   (31,000) [3],[11],[12],[13]   (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],[10]   0 [2],[3],[10]   0 [5],[6],[14]      
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | Class C - Warrants                
Schedule of Investments [Line Items]                
Fair value 0 [2],[3],[10]   0 [2],[3],[10]   0 [5],[6],[14]      
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | Class X Equity                
Schedule of Investments [Line Items]                
Fair value 0 [2],[3],[10]   0 [2],[3],[10]   0 [5],[6],[14]      
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | Common Stock                
Schedule of Investments [Line Items]                
Fair value 0 [2],[3],[10]   0 [2],[3],[10]   0 [5],[6],[14]      
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 64,000 [2],[3],[12],[20],[32]   64,000 [2],[3],[12],[20],[32]   161,000 [5],[6],[9],[21],[38]      
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp. | Super Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [5],[6],[7]         268,000      
Investment, Identifier [Axis]: Cascade Residential Services LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 3,953,000 [3],[12],[18]   3,953,000 [3],[12],[18]   4,537,000 [6],[8],[9]      
Investment, Identifier [Axis]: Cascade Residential Services LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 155,000 [3],[12],[13],[18]   155,000 [3],[12],[13],[18]   (5,000) [6],[7],[8],[9]      
Investment, Identifier [Axis]: Catawba River Limited | Structured - Junior Note                
Schedule of Investments [Line Items]                
Fair value 2,274,000 [2],[3],[10]   2,274,000 [2],[3],[10]   1,868,000 [5],[6],[14]      
Investment, Identifier [Axis]: Celebration Bidco, LLC | Common Stock                
Schedule of Investments [Line Items]                
Fair value 10,218,000 [3],[10],[39]   10,218,000 [3],[10],[39]   8,925,000 [6],[14],[35] 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],[11],[12],[39]   8,578,000 [3],[11],[12],[39]   8,463,000 [6],[8],[35] 6,414,000    
Investment, Identifier [Axis]: Ceres Pharma NV | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value 3,457,000 [2],[3],[12],[23]   3,457,000 [2],[3],[12],[23]   3,593,000 [5],[6],[9],[24]      
Investment, Identifier [Axis]: Ceres Pharma NV | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value 644,000 [2],[3],[12],[23]   644,000 [2],[3],[12],[23]   666,000 [5],[6],[7],[9],[24]      
Investment, Identifier [Axis]: Cherry Bekaert Advisory LLC | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12] 4,573,000   4,573,000          
Investment, Identifier [Axis]: Cherry Bekaert Advisory LLC | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 4,617,000   4,617,000          
Investment, Identifier [Axis]: Cherry Bekaert Advisory LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (14,000)   (14,000)          
Investment, Identifier [Axis]: CloudOne Digital Corp. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 12,107,000 [3],[11],[12]   12,107,000 [3],[11],[12]   12,160,000 [6],[8],[9]      
Investment, Identifier [Axis]: CloudOne Digital Corp. | Revolver                
Schedule of Investments [Line Items]                
Fair value (21,000) [3],[11],[12],[13]   (21,000) [3],[11],[12],[13]   (29,000) [6],[7],[8],[9]      
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 21,285,000 [3],[39]   21,285,000 [3],[39]   19,983,000 [6],[14],[35] 16,852,000    
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC | Subordinated Term Loan 1                
Schedule of Investments [Line Items]                
Fair value 15,784,000 [3],[39]   15,784,000 [3],[39]   15,891,000 [6],[35] 15,770,000    
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC | Subordinated Term Loan 2                
Schedule of Investments [Line Items]                
Fair value 7,051,000 [3],[39]   7,051,000 [3],[39]   7,327,000 [6],[35] 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],[11],[12]   1,303,000 [2],[3],[11],[12]   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 [6],[8],[9]         3,963,000      
Investment, Identifier [Axis]: Coherus Biosciences, Inc. | Royalty Rights                
Schedule of Investments [Line Items]                
Fair value 1,507,000 [3]   1,507,000 [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 [6],[14]         187,000      
Investment, Identifier [Axis]: Compass Precision, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 390,000 [3],[10]   390,000 [3],[10]   383,000 [6],[14]      
Investment, Identifier [Axis]: Compass Precision, LLC | Senior Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair value 659,000 [3]   659,000 [3]   655,000 [6]      
Investment, Identifier [Axis]: Comply365, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12] 10,428,000   10,428,000          
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 446,000 [3],[11],[12],[13]   446,000 [3],[11],[12],[13]   293,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Constellation Bidco Limited | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [2],[3],[11],[12],[13] 7,443,000   7,443,000          
Investment, Identifier [Axis]: Constellation Bidco Limited | Revolver                
Schedule of Investments [Line Items]                
Fair value [2],[3],[11],[12],[13] (6,000)   (6,000)          
Investment, Identifier [Axis]: Contabo Finco S.À R.L | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[16] 5,289,000   5,289,000          
Investment, Identifier [Axis]: Contabo FincoS.À R.L | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [5],[6],[9],[17]         5,469,000      
Investment, Identifier [Axis]: Coyo Uprising GmbH | Class A Units                
Schedule of Investments [Line Items]                
Fair value 243,000 [2],[3],[10]   243,000 [2],[3],[10]   243,000 [5],[6],[14]      
Investment, Identifier [Axis]: Coyo Uprising GmbH | Class B Units                
Schedule of Investments [Line Items]                
Fair value 319,000 [2],[3],[10]   319,000 [2],[3],[10]   420,000 [5],[6],[14]      
Investment, Identifier [Axis]: Coyo Uprising GmbH | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 5,289,000 [2],[3],[12],[13],[23]   5,289,000 [2],[3],[12],[13],[23]   5,477,000 [5],[6],[7],[9],[24]      
Investment, Identifier [Axis]: Credit Key Funding II LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 5,654,000 [3],[12],[13],[18]   5,654,000 [3],[12],[13],[18]   4,748,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Credit Key Funding II LLC | Preferred Stock                
Schedule of Investments [Line Items]                
Fair value 2,774,000 [3]   2,774,000 [3]   2,557,000 [6]      
Investment, Identifier [Axis]: Credit Key Funding II LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 429,000 [3],[12],[13],[18]   429,000 [3],[12],[13],[18]   (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],[10]   17,000 [3],[10]   0 [6],[14]      
Investment, Identifier [Axis]: DAWGS Intermediate Holdings Co. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,585,000 [3],[11],[12]   2,585,000 [3],[11],[12]   1,791,000 [6],[8],[9]      
Investment, Identifier [Axis]: DAWGS Intermediate Holdings Co. | LLC Units                
Schedule of Investments [Line Items]                
Fair value 472,000 [3],[10]   472,000 [3],[10]   409,000 [6],[14]      
Investment, Identifier [Axis]: DAWGS Intermediate Holdings Co. | Revolver                
Schedule of Investments [Line Items]                
Fair value 262,000 [3],[11],[12],[13]   262,000 [3],[11],[12],[13]   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 6,826,000 [3],[12],[18]   6,826,000 [3],[12],[18]   6,880,000 [6],[8],[9]      
Investment, Identifier [Axis]: DISA Holdings Corp. | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[12],[13],[18]   0 [3],[12],[13],[18]   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],[25] 1,127,000   1,127,000          
Investment, Identifier [Axis]: Dane Street, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[12],[13],[25] (5,000)   (5,000)          
Investment, Identifier [Axis]: DataServ Integrations, LLC | Preferred Units                
Schedule of Investments [Line Items]                
Fair value 218,000 [3],[10]   218,000 [3],[10]   235,000 [6],[14]      
Investment, Identifier [Axis]: David Wood Baking UK Ltd | Common Stock                
Schedule of Investments [Line Items]                
Fair value [2],[3],[10] 0   0          
Investment, Identifier [Axis]: David Wood Baking UK Ltd | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 1,030,000 [2],[3],[12],[13],[29]   1,030,000 [2],[3],[12],[13],[29]   862,000 [5],[6],[9],[27]      
Investment, Identifier [Axis]: DecksDirect, LLC | Class A Units                
Schedule of Investments [Line Items]                
Fair value 0 [3],[10]   0 [3],[10]   0 [6],[14]      
Investment, Identifier [Axis]: DecksDirect, LLC | Common Stock                
Schedule of Investments [Line Items]                
Fair value 0 [3],[10]   0 [3],[10]   0 [6],[14]      
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],[10]   0 [3],[10]   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 16,871,000 [3],[11],[12],[13]   16,871,000 [3],[11],[12],[13]   16,904,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Discovery Buyer, L.P. | Revolver                
Schedule of Investments [Line Items]                
Fair value (10,000) [3],[11],[12],[13]   (10,000) [3],[11],[12],[13]   (16,000) [6],[7],[8],[9]      
Investment, Identifier [Axis]: Diversified Packaging Holdings LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 628,000 [3],[10]   628,000 [3],[10]   456,000 [6]      
Investment, Identifier [Axis]: Diversified Packaging Holdings LLC | Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 1,028,000 [3]   1,028,000 [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],[14],[15]         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],[18]   1,000,000 [2],[3],[12],[18]   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 2,132,000 [3],[11],[12],[13]   2,132,000 [3],[11],[12],[13]   1,392,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Durare Bidco, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (6,000) [3],[11],[12],[13]   (6,000) [3],[11],[12],[13]   (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 [6],[8],[9]         14,476,000      
Investment, Identifier [Axis]: EB Development | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [5],[6],[7],[9],[17]         2,056,000      
Investment, Identifier [Axis]: EB Development | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[16] 1,999,000   1,999,000          
Investment, Identifier [Axis]: EB Development | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value [2],[3],[11],[12] 1,558,000   1,558,000          
Investment, Identifier [Axis]: EFC International | Common Stock                
Schedule of Investments [Line Items]                
Fair value 235,000 [3],[10]   235,000 [3],[10]   217,000 [6],[14]      
Investment, Identifier [Axis]: EFC International | Senior Unsecured Term Loan                
Schedule of Investments [Line Items]                
Fair value 836,000 [3]   836,000 [3]   820,000 [6]      
Investment, Identifier [Axis]: EMI Porta Holdco LLC | Common Stock                
Schedule of Investments [Line Items]                
Fair value 3,911,000 [3],[10],[39]   3,911,000 [3],[10],[39]   0      
Investment, Identifier [Axis]: EMI Porta Holdco LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,404,000 [3],[11],[12],[39]   4,404,000 [3],[11],[12],[39]   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 4,404,000   4,404,000   0      
Investment, Identifier [Axis]: EMI Porta Holdco LLC | Preferred Stock                
Schedule of Investments [Line Items]                
Fair value 2,439,000 [3],[39]   2,439,000 [3],[39]   0      
Investment, Identifier [Axis]: EMI Porta Holdco LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[11],[12],[13],[39]   0 [3],[11],[12],[13],[39]   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],[12],[13],[18] 2,667,000   2,667,000          
Investment, Identifier [Axis]: ERS Holdings, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value [3],[10] 54,000   54,000          
Investment, Identifier [Axis]: ERS Holdings, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[12],[13],[18] (3,000)   (3,000)          
Investment, Identifier [Axis]: EZ SMBO Bidco | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value 832,000 [2],[3],[12],[13],[23]   832,000 [2],[3],[12],[13],[23]   916,000 [5],[6],[9],[38]      
Investment, Identifier [Axis]: EZ SMBO Bidco | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value 884,000 [2],[3],[12],[40]   884,000 [2],[3],[12],[40]   561,000 [5],[6],[7],[9],[24]      
Investment, Identifier [Axis]: EZ SMBO Bidco | First Lien Senior Secured Term Loan 3                
Schedule of Investments [Line Items]                
Fair value 736,000 [2],[3],[12],[23]   736,000 [2],[3],[12],[23]   675,000 [5],[6]      
Investment, Identifier [Axis]: EZ SMBO Bidco | Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[23] 327,000   327,000          
Investment, Identifier [Axis]: Echo Global Logistics, Inc. | Partnership Equity                
Schedule of Investments [Line Items]                
Fair value 912,000 [3],[10]   912,000 [3],[10]   351,000 [6],[14]      
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 LLC, Commitment                
Schedule of Investments [Line Items]                
Fair value 122,100,000   122,100,000   117,000,000.0      
Investment, Identifier [Axis]: Eclipse Business Capital LLC, Debt                
Schedule of Investments [Line Items]                
Fair value 32,300,000   32,300,000   27,200,000      
Investment, Identifier [Axis]: Eclipse Business Capital LLC, Equity                
Schedule of Investments [Line Items]                
Fair value 89,800,000   89,800,000   89,800,000      
Investment, Identifier [Axis]: Eclipse Business Capital LLC, First Lien Senior Secured Loan Commitment, Unfunded                
Schedule of Investments [Line Items]                
Fair value 1,700,000   1,700,000          
Investment, Identifier [Axis]: Eclipse Business Capital LLC, Revolver Commitment, Unfunded                
Schedule of Investments [Line Items]                
Fair value 10,400,000   10,400,000   12,800,000      
Investment, Identifier [Axis]: Eclipse Business Capital LLC, Total Commitment, Funded                
Schedule of Investments [Line Items]                
Fair value 110,000,000.0   110,000,000.0   104,200,000      
Investment, Identifier [Axis]: Eclipse Business Capital, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 3,333,000 [3],[12],[13],[18],[39]   3,333,000 [3],[12],[13],[18],[39]   0      
Investment, Identifier [Axis]: Eclipse Business Capital, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 139,539,000 [3],[39]   139,539,000 [3],[39]   139,539,000 [6],[35]      
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 12,273,000 [3],[12],[13],[18],[39]   12,273,000 [3],[12],[13],[18],[39]   9,909,000 [6],[7],[19],[35] 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],[39]   4,546,000 [3],[39]   4,546,000 [6],[35] 4,545,000    
Investment, Identifier [Axis]: Electric Equipment & Engineering Co. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 729,000 [3]   729,000 [3]   318,000 [6]      
Investment, Identifier [Axis]: Electric Equipment & Engineering Co. | LLC Units                
Schedule of Investments [Line Items]                
Fair value 353,000 [3],[10]   353,000 [3],[10]   354,000 [6],[14]      
Investment, Identifier [Axis]: Encore Buyer, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 10,079,000   10,079,000          
Investment, Identifier [Axis]: Encore Buyer, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (32,000)   (32,000)          
Investment, Identifier [Axis]: Entact Environmental Services, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [6],[8],[9]         6,230,000      
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | Common Stock                
Schedule of Investments [Line Items]                
Fair value 0 [2],[3],[10]   0 [2],[3],[10]   0 [5],[6],[14]      
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value 629,000 [2],[3],[12],[23]   629,000 [2],[3],[12],[23]   581,000 [5],[6],[9],[24]      
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value 319,000 [2],[3],[11],[12]   319,000 [2],[3],[11],[12]   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 989,000 [2],[3],[12],[29]   989,000 [2],[3],[12],[29]   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],[10]   0 [2],[3],[10]   0 [5],[6],[14]      
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],[24]         0      
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[16],[20] 0   0          
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL | Super Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[16] 130,000   130,000          
Investment, Identifier [Axis]: Events Software BidCo Pty Ltd | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 1,589,000 [2],[3],[12],[30]   1,589,000 [2],[3],[12],[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],[12],[16] 772,000   772,000          
Investment, Identifier [Axis]: Everest Midco Limited | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value [2],[3],[11],[12],[13] 3,194,000   3,194,000          
Investment, Identifier [Axis]: Everest Midco Limited | Revolver                
Schedule of Investments [Line Items]                
Fair value [2],[3],[11],[12],[13] (7,000)   (7,000)          
Investment, Identifier [Axis]: Expert Institute Group Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [6],[7],[9],[28]         1,071,000      
Investment, Identifier [Axis]: Expert Institute Group Inc. | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value [3],[12],[13],[25] 5,316,000   5,316,000          
Investment, Identifier [Axis]: Expert Institute Group Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value (7,000) [3],[12],[13],[25]   (7,000) [3],[12],[13],[25]   (5,000) [6],[7],[9],[28]      
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 3,062,000 [3],[11],[12]   3,062,000 [3],[11],[12]   3,096,000 [6],[8],[9]      
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (10,000) [3],[11],[12],[13]   (10,000) [3],[11],[12],[13]   (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],[11],[12] 6,150,000   6,150,000          
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 4,219,000 [3],[12],[18]   4,219,000 [3],[12],[18]   9,337,000 [6],[9],[19]      
Investment, Identifier [Axis]: FSS Buyer LLC | LP Interest                
Schedule of Investments [Line Items]                
Fair value 16,000 [3],[10]   16,000 [3],[10]   18,000 [6],[14]      
Investment, Identifier [Axis]: FSS Buyer LLC | LP Units                
Schedule of Investments [Line Items]                
Fair value 70,000 [3],[10]   70,000 [3],[10]   78,000 [6],[14]      
Investment, Identifier [Axis]: FSS Buyer LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[12],[13],[18] 0   0          
Investment, Identifier [Axis]: Faraday | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 1,730,000 [2],[3],[12],[16]   1,730,000 [2],[3],[12],[16]   1,787,000 [5],[6],[9],[17]      
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],[25]   1,009,000 [2],[3],[12],[25]   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 1,290,000 [2],[3],[12],[29]   1,290,000 [2],[3],[12],[29]   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 362,000 [3],[10]   362,000 [3],[10]   5,896,000 [6]      
Investment, Identifier [Axis]: Finaxy Holding | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,202,000 [2],[3],[12],[23]   4,202,000 [2],[3],[12],[23]   4,369,000 [5],[6],[9],[24]      
Investment, Identifier [Axis]: Finexvet | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,836,000 [2],[3],[12],[23]   4,836,000 [2],[3],[12],[23]   5,077,000 [5],[6],[9],[24]      
Investment, Identifier [Axis]: FitzMark Buyer, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 3,994,000 [3],[11],[12]   3,994,000 [3],[11],[12]   3,994,000 [6],[9],[19]      
Investment, Identifier [Axis]: Five Star Holding LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 653,000 [3],[10]   653,000 [3],[10]   784,000 [6],[14]      
Investment, Identifier [Axis]: Five Star Holding LLC | Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 13,623,000 [3],[11],[12]   13,623,000 [3],[11],[12]   13,692,000 [6],[8],[9]      
Investment, Identifier [Axis]: Flywheel Holdings Segregated Portfolio 2025-2 | LP Interest                
Schedule of Investments [Line Items]                
Fair value 4,209,000 [2],[3],[10]   4,209,000 [2],[3],[10]   2,861,000 [5],[6],[14]      
Investment, Identifier [Axis]: Flywheel Re Segregated Portfolio 2022-4 | Preferred Stock                
Schedule of Investments [Line Items]                
Fair value 1,584,000 [2],[3]   1,584,000 [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 227,000 [2],[3],[12],[16]   227,000 [2],[3],[12],[16]   247,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: Footco 40 Limited | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value 1,613,000 [2],[3],[12],[29]   1,613,000 [2],[3],[12],[29]   1,714,000 [5],[6],[9],[26]      
Investment, Identifier [Axis]: Forest Buyer, LLC | Class A LLC Units                
Schedule of Investments [Line Items]                
Fair value 125,000 [3],[10]   125,000 [3],[10]   140,000 [6]      
Investment, Identifier [Axis]: Forest Buyer, LLC | Class B LLC Units                
Schedule of Investments [Line Items]                
Fair value 56,000 [3],[10]   56,000 [3],[10]   61,000 [6],[14]      
Investment, Identifier [Axis]: Forest Buyer, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 5,636,000 [3],[11],[12]   5,636,000 [3],[11],[12]   6,054,000 [6],[8],[9]      
Investment, Identifier [Axis]: Forest Buyer, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (19,000) [3],[11],[12],[13]   (19,000) [3],[11],[12],[13]   (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],[11],[12],[13] 1,239,000   1,239,000          
Investment, Identifier [Axis]: Forge Borrower, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (6,000)   (6,000)          
Investment, Identifier [Axis]: FragilePak LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,394,000 [3],[11],[12]   4,394,000 [3],[11],[12]   4,496,000 [6],[8],[9]      
Investment, Identifier [Axis]: FragilePak LLC | Partnership Units                
Schedule of Investments [Line Items]                
Fair value 468,000 [3],[10]   468,000 [3],[10]   666,000 [6],[14]      
Investment, Identifier [Axis]: G-3 Chickadee Purchaser, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 11,483,000 [3],[11],[12]   11,483,000 [3],[11],[12]   11,667,000 [6],[8],[9]      
Investment, Identifier [Axis]: GB Eagle Buyer, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 7,042,000 [3],[11],[12]   7,042,000 [3],[11],[12]   8,382,000 [6],[8],[9]      
Investment, Identifier [Axis]: GB Eagle Buyer, Inc. | Partnership Units                
Schedule of Investments [Line Items]                
Fair value 3,365,000 [10]   3,365,000 [10]   2,025,000 [6],[14]      
Investment, Identifier [Axis]: GB Eagle Buyer, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 130,000 [3],[11],[12],[13]   130,000 [3],[11],[12],[13]   (23,000) [6],[7],[8],[9]      
Investment, Identifier [Axis]: GCDL LLC | Common Stock                
Schedule of Investments [Line Items]                
Fair value 253,000 [3],[10]   253,000 [3],[10]   355,000 [6]      
Investment, Identifier [Axis]: GCDL LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 607,000 [3],[11],[12]   607,000 [3],[11],[12]   501,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: GCDL LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (1,000) [3],[11],[12],[13]   (1,000) [3],[11],[12],[13]   (1,000) [6],[7],[8],[9]      
Investment, Identifier [Axis]: GMES LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 8,286,000 [3],[11],[12],[13]   8,286,000 [3],[11],[12],[13]   7,609,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: GMES LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 195,000 [3],[11],[12],[13]   195,000 [3],[11],[12],[13]   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 2,143,000 [3],[11],[12],[13]   2,143,000 [3],[11],[12],[13]   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],[10]   113,000 [3],[10]   138,000 [6],[14]      
Investment, Identifier [Axis]: GMF Parent, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 97,000 [3],[11],[12],[13]   97,000 [3],[11],[12],[13]   (5,000) [6],[7],[8],[9]      
Investment, Identifier [Axis]: GPNZ II GmbH | Common Stock                
Schedule of Investments [Line Items]                
Fair value 0 [2],[3],[10]   0 [2],[3],[10]   0 [5],[6],[14]      
Investment, Identifier [Axis]: GPNZ II GmbH | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value 0 [2],[3],[12],[20],[41]   0 [2],[3],[12],[20],[41]   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 0 [2],[3],[20]   0 [2],[3],[20]   0 [5],[6],[9],[21],[33]      
Investment, Identifier [Axis]: Global Academic Group Limited | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value 2,814,000 [2],[3],[12],[30]   2,814,000 [2],[3],[12],[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 620,000 [2],[3],[12],[42]   620,000 [2],[3],[12],[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 1,704,000 [2],[3],[12],[13],[16]   1,704,000 [2],[3],[12],[13],[16]   1,762,000 [5],[6],[7],[9],[17]      
Investment, Identifier [Axis]: Groupe Guemas | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 5,092,000 [2],[3],[12],[23]   5,092,000 [2],[3],[12],[23]   5,434,000 [5],[6],[9],[24]      
Investment, Identifier [Axis]: Groupe Product Life | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 417,000 [2],[3],[12],[13],[16]   417,000 [2],[3],[12],[13],[16]   447,000 [5],[6],[7],[9],[17]      
Investment, Identifier [Axis]: HEKA Invest | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,890,000 [2],[3],[12],[16]   4,890,000 [2],[3],[12],[16]   5,501,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: HS Advisory Buyer LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,312,000 [3],[11],[12],[13]   2,312,000 [3],[11],[12],[13]   2,231,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: HS Advisory Buyer LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 273,000 [3],[11],[12],[13]   273,000 [3],[11],[12],[13]   (6,000) [6],[7],[8],[9]      
Investment, Identifier [Axis]: HSL Compliance | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 3,864,000 [2],[3],[12],[13],[22]   3,864,000 [2],[3],[12],[13],[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 10,978,000 [3],[11],[12],[13]   10,978,000 [3],[11],[12],[13]   10,394,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: HTI Technology & Industries | Revolver                
Schedule of Investments [Line Items]                
Fair value (7,000) [3],[11],[12],[13]   (7,000) [3],[11],[12],[13]   (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 [6],[8],[9]         10,132,000      
Investment, Identifier [Axis]: Hawksford Trustees Jersey LTD | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value [2],[3],[11],[12] 2,054,000   2,054,000          
Investment, Identifier [Axis]: Hawksford Trustees Jersey LTD | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[16] 1,911,000   1,911,000          
Investment, Identifier [Axis]: Hawksford Trustees Jersey LTD | First Lien Senior Secured Term Loan 3                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[13],[22] 1,288,000   1,288,000          
Investment, Identifier [Axis]: Haystack Holdings LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 8,593,000 [3],[12],[13],[25]   8,593,000 [3],[12],[13],[25]   6,566,000 [6],[7],[9],[28]      
Investment, Identifier [Axis]: Haystack Holdings LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (28,000) [3],[12],[13],[25]   (28,000) [3],[12],[13],[25]   (1,000) [6],[7],[9],[28]      
Investment, Identifier [Axis]: HeartHealth Bidco Pty Ltd | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 880,000 [2],[3],[12],[13],[30]   880,000 [2],[3],[12],[13],[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 16,018,000 [3]   16,018,000 [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 [6],[8],[9]         7,147,000      
Investment, Identifier [Axis]: Heavy Construction Systems Specialists, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [6],[7],[8],[9]         0      
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 3,416,000 [2],[3],[12],[41]   3,416,000 [2],[3],[12],[41]   3,521,000 [5],[6],[9],[24]      
Investment, Identifier [Axis]: HemaSource, Inc. | Common Stock                
Schedule of Investments [Line Items]                
Fair value 166,000 [3],[10]   166,000 [3],[10]   141,000 [6],[14]      
Investment, Identifier [Axis]: HemaSource, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,476,000 [3],[12],[13],[18]   2,476,000 [3],[12],[13],[18]   2,467,000 [6],[7],[9],[19]      
Investment, Identifier [Axis]: HemaSource, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[12],[13],[18]   0 [3],[12],[13],[18]   (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 506,000 [3],[11],[12],[13]   506,000 [3],[11],[12],[13]   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 3,156,000 [3],[12],[25]   3,156,000 [3],[12],[25]   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 2,050,000 [3],[12],[18]   2,050,000 [3],[12],[18]   1,899,000 [6],[7],[9],[19]      
Investment, Identifier [Axis]: HomeX Services Group LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 82,000 [3],[12],[13],[18]   82,000 [3],[12],[13],[18]   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 6,467,000 [2],[3],[12],[18]   6,467,000 [2],[3],[12],[18]   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 [6],[7],[8],[9]         8,922,000      
Investment, Identifier [Axis]: Hydratech Holdings, Inc. | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 8,854,000   8,854,000          
Investment, Identifier [Axis]: Hydratech Holdings, Inc. | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 1,010,000   1,010,000          
Investment, Identifier [Axis]: Hydratech Holdings, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 751,000 [3],[11],[12],[13]   751,000 [3],[11],[12],[13]   671,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: ICREDITWORKS LLC | Preferred Stock                
Schedule of Investments [Line Items]                
Fair value [6]         10,842,000      
Investment, Identifier [Axis]: ICREDITWORKS LLC | Warrants                
Schedule of Investments [Line Items]                
Fair value [6],[14]         0      
Investment, Identifier [Axis]: IM Square | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 1,760,000 [2],[3],[12],[13],[16]   1,760,000 [2],[3],[12],[13],[16]   2,916,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: IMS Services Enterprises, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[12],[13],[25] 8,405,000   8,405,000          
Investment, Identifier [Axis]: IMS Services Enterprises, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value [3],[10] 320,000   320,000          
Investment, Identifier [Axis]: IMS Services Enterprises, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[12],[13],[25] 164,000   164,000          
Investment, Identifier [Axis]: ITI Intermodal, Inc. | Common Stock                
Schedule of Investments [Line Items]                
Fair value 900,000 [3],[10]   900,000 [3],[10]   961,000 [6],[14]      
Investment, Identifier [Axis]: ITI Intermodal, Inc. | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value 11,770,000 [3],[11],[12]   11,770,000 [3],[11],[12]   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 780,000 [3],[11],[12]   780,000 [3],[11],[12]   793,000 [6],[8],[9]      
Investment, Identifier [Axis]: ITI Intermodal, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 225,000 [3],[11],[12],[13]   225,000 [3],[11],[12],[13]   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 4,463,000 [3],[11],[12],[13]   4,463,000 [3],[11],[12],[13]   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 212,000 [3],[10]   212,000 [3],[10]   174,000 [6],[14]      
Investment, Identifier [Axis]: Ice House America, L.L.C. | Revolver                
Schedule of Investments [Line Items]                
Fair value 81,000 [3],[11],[12],[13]   81,000 [3],[11],[12],[13]   356,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Immix Buyer, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12] 11,781,000   11,781,000          
Investment, Identifier [Axis]: Immix Buyer, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (36,000)   (36,000)          
Investment, Identifier [Axis]: Infoniqa Holdings GmbH | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,949,000 [2],[3],[12],[23]   2,949,000 [2],[3],[12],[23]   3,086,000 [5],[6],[9],[24]      
Investment, Identifier [Axis]: Innovad Group II BV | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value [5],[6],[9],[17]         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],[12],[13],[18] 6,820,000   6,820,000          
Investment, Identifier [Axis]: Integrated Precision Systems, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[12],[13],[18] 360,000   360,000          
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],[13] 8,678,000   8,678,000          
Investment, Identifier [Axis]: Interstellar Group B.V. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 1,719,000 [2],[3],[12],[16]   1,719,000 [2],[3],[12],[16]   1,637,000 [5],[6],[7],[9],[17]      
Investment, Identifier [Axis]: InvoCare Limited | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,243,000 [2],[3],[12],[13],[30]   2,243,000 [2],[3],[12],[13],[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 5,669,000 [2],[3],[12],[16]   5,669,000 [2],[3],[12],[16]   5,788,000 [5],[6],[9],[17]      
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],[24]         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],[28]         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 31,159,000 [2],[13],[39],[45]   31,159,000 [2],[13],[39],[45]   37,986,000 [5],[7],[35],[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 2,420,000 [2],[3],[12],[13],[42]   2,420,000 [2],[3],[12],[13],[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 5,200,000 [3],[11],[12]   5,200,000 [3],[11],[12]   5,364,000 [6],[8],[9]      
Investment, Identifier [Axis]: KAMC Holdings Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 69,000 [3],[11],[12],[13]   69,000 [3],[11],[12],[13]   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],[11],[12],[13]   445,000 [3],[11],[12],[13]   415,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Kanawha Scales & Systems, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 34,000 [3],[11],[12],[13]   34,000 [3],[11],[12],[13]   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 893,000 [2],[3],[12],[13],[23]   893,000 [2],[3],[12],[13],[23]   931,000 [5],[6],[7],[9],[24]      
Investment, Identifier [Axis]: Keystone Bidco B.V. | Revolver                
Schedule of Investments [Line Items]                
Fair value [5],[6],[7],[9],[24]         11,000      
Investment, Identifier [Axis]: Kid Distro Holdings, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [6],[9],[28]         13,020,000      
Investment, Identifier [Axis]: Kid Distro Holdings, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 1,039,000 [3],[10]   1,039,000 [3],[10]   791,000 [6],[14]      
Investment, Identifier [Axis]: Kite Topco Ltd | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[13],[29] 2,675,000   2,675,000          
Investment, Identifier [Axis]: L.A. Specialty Produce Co., LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 6,265,000   6,265,000          
Investment, Identifier [Axis]: L.A. Specialty Produce Co., LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (9,000)   (9,000)          
Investment, Identifier [Axis]: LHS Borrower, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 8,677,000 [3],[12],[18]   8,677,000 [3],[12],[18]   9,019,000 [6],[9],[19]      
Investment, Identifier [Axis]: LHS Borrower, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 181,000 [3],[12],[13],[18]   181,000 [3],[12],[13],[18]   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 2,172,000 [2],[3],[12],[23]   2,172,000 [2],[3],[12],[23]   2,327,000 [5],[6],[7],[9],[24]      
Investment, Identifier [Axis]: Lambir Bidco Limited | Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,061,000 [2],[3]   2,061,000 [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 683,000 [2],[3],[12],[13],[25]   683,000 [2],[3],[12],[13],[25]   731,000 [5],[6],[7],[9],[28]      
Investment, Identifier [Axis]: Lattice Group Holdings Bidco Limited | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value 206,000 [2],[3],[12],[29]   206,000 [2],[3],[12],[29]   154,000 [5],[6],[9],[27]      
Investment, Identifier [Axis]: Lattice Group Holdings Bidco Limited | Revolver                
Schedule of Investments [Line Items]                
Fair value (1,000) [2],[3],[12],[13],[25]   (1,000) [2],[3],[12],[13],[25]   18,000 [5],[6],[7],[9],[28]      
Investment, Identifier [Axis]: LeadsOnline, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 9,851,000 [3],[11],[12]   9,851,000 [3],[11],[12]   9,915,000 [6],[8],[9]      
Investment, Identifier [Axis]: LeadsOnline, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 199,000 [3]   199,000 [3]   216,000 [6]      
Investment, Identifier [Axis]: LeadsOnline, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (10,000) [3],[11],[12],[13]   (10,000) [3],[11],[12],[13]   (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],[18] 4,247,000   4,247,000          
Investment, Identifier [Axis]: Lifestyle Intermediate II, LLC | Class A Common Units                
Schedule of Investments [Line Items]                
Fair value 0 [3],[10],[47]   0 [3],[10],[47]   0 [6],[14],[15]      
Investment, Identifier [Axis]: Lifestyle Intermediate II, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,019,000 [3],[11],[12],[47]   2,019,000 [3],[11],[12],[47]   2,094,000 [6],[8],[9],[15]      
Investment, Identifier [Axis]: Lighthouse Finco SARL | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[16] 695,000   695,000          
Investment, Identifier [Axis]: Lighthouse Finco SARL | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[13],[22] 1,635,000   1,635,000          
Investment, Identifier [Axis]: Lockmasters Security Intermediate, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 3,215,000 [3],[11],[12],[13]   3,215,000 [3],[11],[12],[13]   3,199,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Lockmasters Security Intermediate, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[11],[12],[13]   0 [3],[11],[12],[13]   (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],[11],[12],[13] 11,371,000   11,371,000          
Investment, Identifier [Axis]: London Buyer, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (20,000)   (20,000)          
Investment, Identifier [Axis]: Long Term Care Group, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 8,458,000 [3],[11],[12]   8,458,000 [3],[11],[12]   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 4,003,000 [2],[3],[12],[16]   4,003,000 [2],[3],[12],[16]   4,139,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: MB Purchaser, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 6,431,000 [3],[12],[18]   6,431,000 [3],[12],[18]   3,771,000 [6],[7],[9],[19]      
Investment, Identifier [Axis]: MB Purchaser, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 106,000 [3],[10]   106,000 [3],[10]   78,000 [6],[14]      
Investment, Identifier [Axis]: MB Purchaser, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (8,000) [3],[12],[13],[18]   (8,000) [3],[12],[13],[18]   (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 5,265,000 [3],[11],[12]   5,265,000 [3],[11],[12]   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 4,006,000 [3],[11],[12]   4,006,000 [3],[11],[12]   4,236,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: MC Group Ventures Corporation | Partnership Units                
Schedule of Investments [Line Items]                
Fair value 301,000 [3],[10]   301,000 [3],[10]   706,000 [6],[14]      
Investment, Identifier [Axis]: MC Group Ventures Corporation | Preferred Stock                
Schedule of Investments [Line Items]                
Fair value [3],[10] 41,000   41,000          
Investment, Identifier [Axis]: MIV Buyer, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 3,276,000 [3],[11],[12],[13]   3,276,000 [3],[11],[12],[13]   3,024,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: MIV Buyer, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 95,000 [3],[10]   95,000 [3],[10]   102,000 [6],[14]      
Investment, Identifier [Axis]: MIV Buyer, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (4,000) [3],[11],[12],[13]   (4,000) [3],[11],[12],[13]   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],[14]         186,000      
Investment, Identifier [Axis]: MSI Express Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,110,000 [3],[11],[12]   2,110,000 [3],[11],[12]   2,205,000 [6],[9],[19]      
Investment, Identifier [Axis]: MSI Express Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 1,697,000 [3],[11],[12],[13]   1,697,000 [3],[11],[12],[13]   1,291,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: MVC Automotive Group GmbH | Common Equity Interest                
Schedule of Investments [Line Items]                
Fair value 8,540,000 [2],[3],[10]   8,540,000 [2],[3],[10]   14,143,000 [5],[6],[14],[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 4,771,000 [2],[3],[50]   4,771,000 [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 1,705,000 [2],[3],[12],[16],[50]   1,705,000 [2],[3],[12],[16],[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 4,773,000 [2],[11],[12]   4,773,000 [2],[11],[12]   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 2,156,000 [2],[3],[11],[12]   2,156,000 [2],[3],[11],[12]   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 726,000 [2],[3],[12],[13],[22]   726,000 [2],[3],[12],[13],[22]   846,000 [5],[6],[7],[9],[26]      
Investment, Identifier [Axis]: Maia Bidco Limited | Revolver                
Schedule of Investments [Line Items]                
Fair value [5],[6],[7],[9],[26]         0      
Investment, Identifier [Axis]: Main Line Commercial Pools LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 2,030,000   2,030,000          
Investment, Identifier [Axis]: Main Line Commercial Pools LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (2,000)   (2,000)          
Investment, Identifier [Axis]: Markerstudy Group Limited | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[29] 4,875,000   4,875,000          
Investment, Identifier [Axis]: Marmoutier Holding B.V. | Common Stock                
Schedule of Investments [Line Items]                
Fair value 0 [2],[3],[10]   0 [2],[3],[10]   0 [5],[6],[14]      
Investment, Identifier [Axis]: Marmoutier Holding B.V. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 164,000 [2],[3],[12],[13],[23]   164,000 [2],[3],[12],[13],[23]   63,000 [5],[6],[7],[9],[24]      
Investment, Identifier [Axis]: Marmoutier Holding B.V. | Revolver                
Schedule of Investments [Line Items]                
Fair value 72,000 [2],[3],[12],[23]   72,000 [2],[3],[12],[23]   146,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: Marmoutier Holding B.V. | Super Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 79,000 [2],[3],[12],[23]   79,000 [2],[3],[12],[23]   166,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: Matrix Buyer, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 1,764,000   1,764,000          
Investment, Identifier [Axis]: Matrix Buyer, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 50,000   50,000          
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee) | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value 1,680,000 [3],[11],[12]   1,680,000 [3],[11],[12]   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 3,425,000 [3],[12],[51]   3,425,000 [3],[12],[51]   1,771,000 [6],[8],[9]      
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee) | Revolver 1                
Schedule of Investments [Line Items]                
Fair value 0 [3],[11],[12],[13]   0 [3],[11],[12],[13]   0 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee) | Revolver 2                
Schedule of Investments [Line Items]                
Fair value 0 [3],[12],[13],[51]   0 [3],[12],[13],[51]   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]: Megawatt Acquisitionco, Inc. | Common Stock                
Schedule of Investments [Line Items]                
Fair value 0 [3],[10]   0 [3],[10]   0 [6],[14]      
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,004,000 [3],[11],[12]   4,004,000 [3],[11],[12]   4,023,000 [6],[8],[9]      
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc. | Preferred Stock                
Schedule of Investments [Line Items]                
Fair value 217,000 [3],[10]   217,000 [3],[10]   153,000 [6],[14]      
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 150,000 [3],[11],[12],[13]   150,000 [3],[11],[12],[13]   (15,000) [6],[7],[8],[9]      
Investment, Identifier [Axis]: Mercell Holding AS | Class A Units                
Schedule of Investments [Line Items]                
Fair value 72,000 [2],[3],[10]   72,000 [2],[3],[10]   123,000 [5],[6],[14]      
Investment, Identifier [Axis]: Mercell Holding AS | Class B Units                
Schedule of Investments [Line Items]                
Fair value 0 [2],[3],[10]   0 [2],[3],[10]   0 [5],[6],[14]      
Investment, Identifier [Axis]: Mercell Holding AS | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 3,130,000 [2],[3],[12],[52]   3,130,000 [2],[3],[12],[52]   3,098,000 [5],[6],[7],[9],[53]      
Investment, Identifier [Axis]: Merlin Parent Holdings 2026, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[12],[18] 1,939,000   1,939,000          
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],[54]         7,420,000      
Investment, Identifier [Axis]: Momentum Textiles, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 7,169,000 [3],[11],[12]   7,169,000 [3],[11],[12]   7,218,000 [6],[8],[9]      
Investment, Identifier [Axis]: Momentum Textiles, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (6,000) [3],[11],[12],[13]   (6,000) [3],[11],[12],[13]   (9,000) [6],[7],[8],[9]      
Investment, Identifier [Axis]: Moonlight Bidco Limited | Common Stock                
Schedule of Investments [Line Items]                
Fair value 195,000 [2],[3],[10]   195,000 [2],[3],[10]   202,000 [5],[6],[14]      
Investment, Identifier [Axis]: Moonlight Bidco Limited | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,261,000 [2],[3],[12],[13],[22]   2,261,000 [2],[3],[12],[13],[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 1,453,000 [2],[3],[12],[29]   1,453,000 [2],[3],[12],[29]   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 6,840,000 [3],[12],[18]   6,840,000 [3],[12],[18]   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 15,406,000 [3],[11],[12],[13]   15,406,000 [3],[11],[12],[13]   12,816,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: NAW Buyer LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 846,000 [3],[10]   846,000 [3],[10]   595,000 [6]      
Investment, Identifier [Axis]: NAW Buyer LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[11],[12],[13]   0 [3],[11],[12],[13]   (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 5,630,000 [3],[11],[12]   5,630,000 [3],[11],[12]   5,921,000 [6],[8],[9]      
Investment, Identifier [Axis]: NF Holdco, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 96,000 [3],[10]   96,000 [3],[10]   224,000 [6],[14]      
Investment, Identifier [Axis]: NF Holdco, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 1,005,000 [3],[11],[12]   1,005,000 [3],[11],[12]   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 2,314,000 [2],[3],[12],[13],[16]   2,314,000 [2],[3],[12],[13],[16]   2,393,000 [5],[6],[7],[9],[17]      
Investment, Identifier [Axis]: Napa Bidco Pty Ltd | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 14,000,000 [2],[3],[12],[30]   14,000,000 [2],[3],[12],[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],[11],[12],[13] 8,393,000   8,393,000          
Investment, Identifier [Axis]: Nationwide Legal Services, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (13,000)   (13,000)          
Investment, Identifier [Axis]: NeoxCo | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [5],[6],[9],[24]         2,808,000      
Investment, Identifier [Axis]: NeoxCo | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[23] 2,205,000   2,205,000          
Investment, Identifier [Axis]: NeoxCo | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[23] 511,000   511,000          
Investment, Identifier [Axis]: Next Holdco, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 21,970,000 [3],[11],[12]   21,970,000 [3],[11],[12]   22,055,000 [6],[8],[9]      
Investment, Identifier [Axis]: Next Holdco, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[11],[12],[13]   0 [3],[11],[12],[13]   (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 12,511,000 [3],[11],[12]   12,511,000 [3],[11],[12]   12,490,000 [6],[8],[9]      
Investment, Identifier [Axis]: Northstar Recycling, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[11],[12],[13]   0 [3],[11],[12],[13]   (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 3,267,000 [3],[11],[12]   3,267,000 [3],[11],[12]   3,285,000 [6],[8],[9]      
Investment, Identifier [Axis]: OAC Holdings I Corp | Revolver                
Schedule of Investments [Line Items]                
Fair value 157,000 [3],[11],[12],[13]   157,000 [3],[11],[12],[13]   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 3,456,000 [2],[3],[12],[16]   3,456,000 [2],[3],[12],[16]   3,589,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: ORS Buyer, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 6,288,000 [3],[11],[12]   6,288,000 [3],[11],[12]   4,905,000 [6],[8],[9]      
Investment, Identifier [Axis]: ORS Buyer, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 772,000   772,000          
Investment, Identifier [Axis]: ORTEC International Newco B.V. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 1,038,000 [2],[3],[12],[16]   1,038,000 [2],[3],[12],[16]   1,074,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: OSP AFS Buyer, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 5,997,000 [3],[11],[12],[13]   5,997,000 [3],[11],[12],[13]   2,883,000 [6],[7],[9],[19]      
Investment, Identifier [Axis]: OSP AFS Buyer, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[11],[12],[13]   0 [3],[11],[12],[13]   (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 17,932,000 [3],[11],[12]   17,932,000 [3],[11],[12]   18,094,000 [6],[8],[9]      
Investment, Identifier [Axis]: OSP Hamilton Purchaser, LLC | LP Units                
Schedule of Investments [Line Items]                
Fair value 198,000 [3],[10]   198,000 [3],[10]   182,000 [6],[14]      
Investment, Identifier [Axis]: OSP Hamilton Purchaser, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 669,000 [3],[11],[12],[13]   669,000 [3],[11],[12],[13]   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 4,089,000 [3],[12],[18]   4,089,000 [3],[12],[18]   4,201,000 [6],[9],[19]      
Investment, Identifier [Axis]: OSP Lakeside Intermediate Holdings 2, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (25,000) [3],[12],[13],[18]   (25,000) [3],[12],[13],[18]   (11,000) [6],[7],[9],[19]      
Investment, Identifier [Axis]: Ocelot Holdco LLC | Common Stock                
Schedule of Investments [Line Items]                
Fair value [6],[14]         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 4,606,000 [2],[3],[12],[18]   4,606,000 [2],[3],[12],[18]   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 2,846,000 [2],[3],[12],[29]   2,846,000 [2],[3],[12],[29]   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 336,000 [2],[3],[12],[16]   336,000 [2],[3],[12],[16]   345,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: Origin Bidco Limited | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value 533,000 [2],[3],[11],[12]   533,000 [2],[3],[11],[12]   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 2,184,000 [3],[11],[12],[13]   2,184,000 [3],[11],[12],[13]   2,345,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Owl Intermediate Holdings, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 59,000 [3],[11],[12],[13]   59,000 [3],[11],[12],[13]   (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],[18] 14,175,000   14,175,000          
Investment, Identifier [Axis]: PDQ.Com Corporation | Class A-2 Partnership Units                
Schedule of Investments [Line Items]                
Fair value 31,000 [3],[10]   31,000 [3],[10]   39,000 [6],[14]      
Investment, Identifier [Axis]: PDQ.Com Corporation | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 13,064,000 [3],[11],[12]   13,064,000 [3],[11],[12]   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 926,000 [2],[3],[12],[16]   926,000 [2],[3],[12],[16]   960,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: PSP Intermediate 4, LLC | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value 1,407,000 [2],[3],[11],[12]   1,407,000 [2],[3],[11],[12]   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 2,347,000 [3]   2,347,000 [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],[12],[13],[30] 4,094,000   4,094,000          
Investment, Identifier [Axis]: Pare SAS (SAS Maurice MARLE) | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value 2,570,000 [2],[3],[12],[16]   2,570,000 [2],[3],[12],[16]   2,537,000 [5],[6],[9],[17]      
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],[11],[12]   1,300,000 [2],[3],[11],[12]   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],[12],[18] 619,000   619,000          
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 196,000 [3],[10]   196,000 [3],[10]   227,000 [6],[14]      
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],[17]         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],[12],[13],[30] 1,792,000   1,792,000          
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 180,000 [2],[3]   180,000 [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 180,000 [2],[3]   180,000 [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 9,240,000 [2],[3]   9,240,000 [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 2,850,000 [2],[3],[12],[30]   2,850,000 [2],[3],[12],[30]   2,732,000 [5],[6],[9],[31]      
Investment, Identifier [Axis]: Petrus Buyer Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[12],[13],[18] 2,738,000   2,738,000          
Investment, Identifier [Axis]: Pinion Holdings Limited | Preferred Stock                
Schedule of Investments [Line Items]                
Fair value [2],[3] 460,000   460,000          
Investment, Identifier [Axis]: Polara Enterprises, L.L.C. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 935,000 [3],[11],[12]   935,000 [3],[11],[12]   944,000 [6],[8],[9]      
Investment, Identifier [Axis]: Polara Enterprises, L.L.C. | Partnership Units                
Schedule of Investments [Line Items]                
Fair value 3,456,000 [3]   3,456,000 [3]   1,974,000 [6]      
Investment, Identifier [Axis]: Polara Enterprises, L.L.C. | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[11],[12],[13]   0 [3],[11],[12],[13]   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],[10],[39]   0 [3],[10],[39]   0      
Investment, Identifier [Axis]: Policy Services Company, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 48,969,000 [3],[11],[12],[39]   48,969,000 [3],[11],[12],[39]   48,065,000 [6],[8],[9]      
Investment, Identifier [Axis]: Policy Services Company, LLC | Warrants - Class A                
Schedule of Investments [Line Items]                
Fair value 0   0   0 [6],[14]      
Investment, Identifier [Axis]: Policy Services Company, LLC | Warrants - Class B                
Schedule of Investments [Line Items]                
Fair value 0   0   0 [6],[14]      
Investment, Identifier [Axis]: Policy Services Company, LLC | Warrants - Class CC                
Schedule of Investments [Line Items]                
Fair value 0   0   0 [6],[14]      
Investment, Identifier [Axis]: Policy Services Company, LLC | Warrants - Class D                
Schedule of Investments [Line Items]                
Fair value 0   0   0 [6],[14]      
Investment, Identifier [Axis]: Polymer Solutions Group Holdings, LLC | Common Stock                
Schedule of Investments [Line Items]                
Fair value 0 [3],[10]   0 [3],[10]   0 [6],[14],[15]      
Investment, Identifier [Axis]: Polymer Solutions Group Holdings, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 334,000 [3],[11],[12],[20]   334,000 [3],[11],[12],[20]   364,000 [6],[8],[9],[15],[21]      
Investment, Identifier [Axis]: PowerGEM Buyer, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [6],[7],[8],[9]         4,867,000      
Investment, Identifier [Axis]: PowerGEM Buyer, Inc. | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12] 7,474,000   7,474,000          
Investment, Identifier [Axis]: PowerGEM Buyer, Inc. | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 317,000   317,000          
Investment, Identifier [Axis]: PowerGEM Buyer, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value (10,000) [3],[11],[12],[13]   (10,000) [3],[11],[12],[13]   (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 10,020,000 [3],[11],[12]   10,020,000 [3],[11],[12]   10,012,000 [6],[9],[28]      
Investment, Identifier [Axis]: Premium Invest | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 9,598,000 [2],[3],[12],[13],[16]   9,598,000 [2],[3],[12],[13],[16]   9,842,000 [5],[6],[7],[9],[17]      
Investment, Identifier [Axis]: Prime Power Solutions, LLC | Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12] 14,724,000   14,724,000          
Investment, Identifier [Axis]: Pro-Vision Solutions Holdings, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 15,212,000 [3],[11],[12]   15,212,000 [3],[11],[12]   7,678,000 [6],[9],[19]      
Investment, Identifier [Axis]: Pro-Vision Solutions Holdings, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 344,000 [3],[10]   344,000 [3],[10]   249,000 [6],[14]      
Investment, Identifier [Axis]: Pro-Vision Solutions Holdings, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 286,000 [3],[11],[12],[13]   286,000 [3],[11],[12],[13]   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],[11],[12],[13] 11,194,000   11,194,000          
Investment, Identifier [Axis]: Proceed Legal Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (4,000)   (4,000)          
Investment, Identifier [Axis]: Process Equipment, Inc. (ProcessBarron) | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 5,219,000 [3],[12],[25]   5,219,000 [3],[12],[25]   5,254,000 [6],[9],[28]      
Investment, Identifier [Axis]: Process Insights Acquisition, Inc. | Class A Preferred Stock                
Schedule of Investments [Line Items]                
Fair value [3],[10] 0   0          
Investment, Identifier [Axis]: Process Insights Acquisition, Inc. | Common Stock                
Schedule of Investments [Line Items]                
Fair value 0 [3],[10]   0 [3],[10]   72,000 [6],[14]      
Investment, Identifier [Axis]: Process Insights Acquisition, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,734,000 [3],[11],[12]   4,734,000 [3],[11],[12]   5,022,000 [6],[8],[9]      
Investment, Identifier [Axis]: Process Insights Acquisition, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 336,000 [3],[11],[12],[13]   336,000 [3],[11],[12],[13]   896,000 [6],[8],[9]      
Investment, Identifier [Axis]: ProfitOptics, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 1,573,000 [3],[11],[12]   1,573,000 [3],[11],[12]   1,595,000 [6],[9],[19]      
Investment, Identifier [Axis]: ProfitOptics, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 489,000 [3],[10]   489,000 [3],[10]   423,000 [6],[14]      
Investment, Identifier [Axis]: ProfitOptics, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (2,000) [3],[11],[12],[13]   (2,000) [3],[11],[12],[13]   0 [6],[7],[9],[19]      
Investment, Identifier [Axis]: ProfitOptics, LLC | Senior Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair value 79,000 [3]   79,000 [3]   78,000 [6]      
Investment, Identifier [Axis]: Prospero Bidco SAS | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[13],[41] 3,369,000   3,369,000          
Investment, Identifier [Axis]: Protego Bidco B.V. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[16] 1,855,000   1,855,000          
Investment, Identifier [Axis]: Protego Bidco B.V. | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value [5],[6],[9],[24]         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],[24]         320,000      
Investment, Identifier [Axis]: Protego Bidco B.V. | Revolver                
Schedule of Investments [Line Items]                
Fair value 2,225,000 [2],[3],[12],[16]   2,225,000 [2],[3],[12],[16]   2,300,000 [5],[6],[9],[24]      
Investment, Identifier [Axis]: Protego Bidco B.V. | Super Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[16] 1,447,000   1,447,000          
Investment, Identifier [Axis]: Pulse Holding GmbH | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[13],[16] 1,312,000   1,312,000          
Investment, Identifier [Axis]: Pulse Holding GmbH | Revolver                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[13],[16] 0   0          
Investment, Identifier [Axis]: QPE7 SPV1 BidCo Pty Ltd | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 1,643,000 [2],[3],[12],[55]   1,643,000 [2],[3],[12],[55]   1,829,000 [5],[6],[9],[56]      
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],[12],[16] 428,000   428,000          
Investment, Identifier [Axis]: Qima Finance LTD | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value [2],[3],[11],[12],[13] 2,993,000   2,993,000          
Investment, Identifier [Axis]: Quantios Management Services Limited | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[13],[22] 2,193,000   2,193,000          
Investment, Identifier [Axis]: Quantios Management Services Limited | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value [2],[3],[11],[12] 1,113,000   1,113,000          
Investment, Identifier [Axis]: Quantios Management Services Limited | Revolver                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[13],[22] (10,000)   (10,000)          
Investment, Identifier [Axis]: R1 Holdings, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 5,795,000 [3],[11],[12]   5,795,000 [3],[11],[12]   5,879,000 [6],[9],[28]      
Investment, Identifier [Axis]: R1 Holdings, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 1,439,000 [3],[11],[12],[13]   1,439,000 [3],[11],[12],[13]   1,796,000 [6],[7],[9],[28]      
Investment, Identifier [Axis]: RA Outdoors, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 8,572,000 [3],[12],[20],[25],[47]   8,572,000 [3],[12],[20],[25],[47]   9,785,000 [6],[9],[15],[21],[28]      
Investment, Identifier [Axis]: RA Outdoors, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 820,000 [3],[12],[20],[25],[47]   820,000 [3],[12],[20],[25],[47]   919,000 [6],[9],[15],[21],[28]      
Investment, Identifier [Axis]: REP SEKO Merger Sub, LLC | Common Stock                
Schedule of Investments [Line Items]                
Fair value 0 [3],[10]   0 [3],[10]   0 [6],[14]      
Investment, Identifier [Axis]: REP SEKO Merger Sub, LLC | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value 1,473,000 [3],[11],[12],[20]   1,473,000 [3],[11],[12],[20]   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 424,000 [3],[11],[12]   424,000 [3],[11],[12]   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 1,233,000 [3],[11],[12]   1,233,000 [3],[11],[12]   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 12,498,000 [3],[11],[12],[13]   12,498,000 [3],[11],[12],[13]   12,039,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: RKD Group, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 504,000 [3],[11],[12],[13]   504,000 [3],[11],[12],[13]   (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 8,190,000 [3],[11],[12],[13]   8,190,000 [3],[11],[12],[13]   9,078,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: ROI Solutions LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (242,000) [3],[11],[12],[13]   (242,000) [3],[11],[12],[13]   (32,000) [6],[7],[8],[9]      
Investment, Identifier [Axis]: RPX Corporation | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 15,451,000 [3],[12],[18]   15,451,000 [3],[12],[18]   21,484,000 [6],[9],[19]      
Investment, Identifier [Axis]: RPX Corporation | Revolver                
Schedule of Investments [Line Items]                
Fair value (11,000) [3],[12],[13],[18]   (11,000) [3],[12],[13],[18]   (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],[10]   0 [3],[10]   0 [6],[14],[15]      
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC | Class B Preferred Stock                
Schedule of Investments [Line Items]                
Fair value 0 [3],[10]   0 [3],[10]   0 [6],[14],[15]      
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC | Class C Preferred Stock                
Schedule of Investments [Line Items]                
Fair value 17,000 [3],[10]   17,000 [3],[10]   36,000 [6],[14],[15]      
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC | Common Stock                
Schedule of Investments [Line Items]                
Fair value 0 [3],[10]   0 [3],[10]   0 [6],[14],[15]      
Investment, Identifier [Axis]: Randys Holdings, Inc. | Common Stock                
Schedule of Investments [Line Items]                
Fair value 655,000 [3],[10]   655,000 [3],[10]   690,000 [6],[14]      
Investment, Identifier [Axis]: Randys Holdings, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 13,065,000 [3],[12],[18]   13,065,000 [3],[12],[18]   12,552,000 [6],[7],[9],[19]      
Investment, Identifier [Axis]: Randys Holdings, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 592,000 [3],[12],[13],[18]   592,000 [3],[12],[13],[18]   (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 5,354,000 [3],[12],[13],[25]   5,354,000 [3],[12],[13],[25]   4,897,000 [6],[7],[9],[28]      
Investment, Identifier [Axis]: Rapid Buyer LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 570,000 [3],[10]   570,000 [3],[10]   377,000 [6],[14]      
Investment, Identifier [Axis]: Rapid Buyer LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (3,000) [3],[12],[13],[25]   (3,000) [3],[12],[13],[25]   (93,000) [6],[7],[9],[28]      
Investment, Identifier [Axis]: Real Chemistry Intermediate III, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,581,000 [3],[11],[12],[13]   4,581,000 [3],[11],[12],[13]   4,058,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Real Chemistry Intermediate III, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value (9,000) [3],[11],[12],[13]   (9,000) [3],[11],[12],[13]   (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 1,918,000 [3],[11],[12],[13]   1,918,000 [3],[11],[12],[13]   1,874,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Recon Buyer LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 141,000 [3],[10]   141,000 [3],[10]   116,000 [6],[14]      
Investment, Identifier [Axis]: Recon Buyer LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (5,000) [3],[11],[12],[13]   (5,000) [3],[11],[12],[13]   (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 [6],[9],[28]         11,176,000      
Investment, Identifier [Axis]: Recovery Point Systems, Inc. | Partnership Equity                
Schedule of Investments [Line Items]                
Fair value [6],[14]         103,000      
Investment, Identifier [Axis]: Renovation Parent Holdings, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,490,000 [3],[11],[12]   4,490,000 [3],[11],[12]   4,609,000 [6],[8],[9]      
Investment, Identifier [Axis]: Renovation Parent Holdings, LLC | Partnership Equity                
Schedule of Investments [Line Items]                
Fair value 271,000 [3],[10]   271,000 [3],[10]   160,000 [6],[14]      
Investment, Identifier [Axis]: Resolute Investment Managers, Inc. | Common Stock                
Schedule of Investments [Line Items]                
Fair value 0 [3],[10]   0 [3],[10]   0 [6],[14],[15]      
Investment, Identifier [Axis]: Riedel Beheer B.V. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,356,000 [2],[3],[12],[16]   2,356,000 [2],[3],[12],[16]   2,146,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: Rocade Holdings LLC | Commitment                
Schedule of Investments [Line Items]                
Fair value 91,000,000.0   91,000,000.0   88,000,000.0      
Investment, Identifier [Axis]: Rocade Holdings LLC | Common LP Units                
Schedule of Investments [Line Items]                
Fair value 5,469,000 [3],[39]   5,469,000 [3],[39]   3,596,000 [6],[35] 243,000    
Investment, Identifier [Axis]: Rocade Holdings LLC | Debt                
Schedule of Investments [Line Items]                
Fair value 13,000,000.0   13,000,000.0   10,000,000.0      
Investment, Identifier [Axis]: Rocade Holdings LLC | Equity                
Schedule of Investments [Line Items]                
Fair value 78,000,000.0   78,000,000.0   78,000,000.0      
Investment, Identifier [Axis]: Rocade Holdings LLC | Preferred Equity Commitment | Unfunded                
Schedule of Investments [Line Items]                
Fair value 7,000,000.0   7,000,000.0   7,000,000.0      
Investment, Identifier [Axis]: Rocade Holdings LLC | Preferred LP Units                
Schedule of Investments [Line Items]                
Fair value 88,871,000 [3],[11],[13],[39]   88,871,000 [3],[11],[13],[39]   89,450,000 [6],[7],[8],[35] 83,000,000    
Investment, Identifier [Axis]: Rocade Holdings LLC | Second Lien Senior Loan | Unfunded                
Schedule of Investments [Line Items]                
Fair value 800,000   800,000   7,100,000      
Investment, Identifier [Axis]: Rocade Holdings LLC | Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 11,949,000 [3],[11],[12],[13],[39]   11,949,000 [3],[11],[12],[13],[39]   2,667,000 [6],[7],[8],[9],[35] 0    
Investment, Identifier [Axis]: Rocade Holdings LLC | Total Commitment | Funded                
Schedule of Investments [Line Items]                
Fair value 83,200,000   83,200,000   73,900,000      
Investment, Identifier [Axis]: Rock Labor LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 6,438,000 [3],[11],[12]   6,438,000 [3],[11],[12]   6,471,000 [6],[9],[19]      
Investment, Identifier [Axis]: Rock Labor LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 1,240,000 [3],[10]   1,240,000 [3],[10]   1,380,000 [6],[14]      
Investment, Identifier [Axis]: Rock Labor LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[11],[12],[13]   0 [3],[11],[12],[13]   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 1,741,000 [2],[3],[12],[13],[30]   1,741,000 [2],[3],[12],[13],[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 8,561,000 [3],[12],[13],[18]   8,561,000 [3],[12],[13],[18]   8,615,000 [6],[7],[9],[19]      
Investment, Identifier [Axis]: SBP Holdings LP | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[12],[13],[18]   0 [3],[12],[13],[18]   (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 8,370,000 [3],[11],[12],[13]   8,370,000 [3],[11],[12],[13]   6,885,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: SCP CDH Buyer, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[11],[12],[13]   0 [3],[11],[12],[13]   (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 2,019,000 [3],[11],[12]   2,019,000 [3],[11],[12]   2,022,000 [6],[8],[9]      
Investment, Identifier [Axis]: SCP Medical Products, LLC. | LLC Units                
Schedule of Investments [Line Items]                
Fair value 56,000 [3],[10]   56,000 [3],[10]   53,000 [6],[14]      
Investment, Identifier [Axis]: SCP Medical Products, LLC. | Revolver                
Schedule of Investments [Line Items]                
Fair value 85,000 [3],[11],[12],[13]   85,000 [3],[11],[12],[13]   (1,000) [6],[7],[8],[9]      
Investment, Identifier [Axis]: SPATCO Energy Solutions, LLC | Common Stock                
Schedule of Investments [Line Items]                
Fair value 192,000 [3],[10]   192,000 [3],[10]   309,000 [6],[14]      
Investment, Identifier [Axis]: SPATCO Energy Solutions, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 7,218,000 [3],[11],[12],[13]   7,218,000 [3],[11],[12],[13]   7,374,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: SPATCO Energy Solutions, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 236,000 [3],[11],[12],[13]   236,000 [3],[11],[12],[13]   (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],[18] 4,427,000   4,427,000          
Investment, Identifier [Axis]: SRS Acquiom Holdings LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[12],[13],[18] 0   0          
Investment, Identifier [Axis]: SSCP Pegasus Midco Limited | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 1,721,000 [2],[3],[12],[13],[22]   1,721,000 [2],[3],[12],[13],[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 2,167,000 [2],[3],[12],[29]   2,167,000 [2],[3],[12],[29]   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 395,000 [3]   395,000 [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 13,308,000 [3],[11],[12]   13,308,000 [3],[11],[12]   13,505,000 [6],[8],[9]      
Investment, Identifier [Axis]: Saab Purchaser, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value (38,000) [3],[11],[12],[13]   (38,000) [3],[11],[12],[13]   (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 8,268,000 [3],[11],[12]   8,268,000 [3],[11],[12]   9,422,000 [6],[8],[9]      
Investment, Identifier [Axis]: Safety Products Holdings, LLC | Preferred Stock                
Schedule of Investments [Line Items]                
Fair value 659,000 [3],[10]   659,000 [3],[10]   500,000 [6],[14]      
Investment, Identifier [Axis]: Salsify Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 9,360,000   9,360,000          
Investment, Identifier [Axis]: Salsify Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 494,000   494,000          
Investment, Identifier [Axis]: Sanoptis S.A.R.L. | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value 6,158,000 [2],[3],[12],[16]   6,158,000 [2],[3],[12],[16]   4,258,000 [5],[6],[7],[9],[17]      
Investment, Identifier [Axis]: Sanoptis S.A.R.L. | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value 3,776,000 [2],[3],[12],[57]   3,776,000 [2],[3],[12],[57]   3,275,000 [5],[6],[9],[58]      
Investment, Identifier [Axis]: Sansidor BV | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 995,000 [2],[3],[12],[13],[16]   995,000 [2],[3],[12],[13],[16]   1,059,000 [5],[6],[9],[17]      
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],[17]         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],[12],[13],[16] 1,759,000   1,759,000          
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],[11],[12] 57,000   57,000          
Investment, Identifier [Axis]: Scaled Agile, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 567,000 [3],[12],[20],[25]   567,000 [3],[12],[20],[25]   1,558,000 [6],[8],[9]      
Investment, Identifier [Axis]: Scaled Agile, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 108,000 [3],[12],[20],[25]   108,000 [3],[12],[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 3,618,000 [2],[3],[12],[23]   3,618,000 [2],[3],[12],[23]   3,456,000 [5],[6],[9],[24]      
Investment, Identifier [Axis]: Scout Bidco B.V. | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value 442,000 [2],[3],[12],[25]   442,000 [2],[3],[12],[25]   408,000 [5],[6],[9],[28]      
Investment, Identifier [Axis]: Scout Bidco B.V. | Revolver                
Schedule of Investments [Line Items]                
Fair value 1,093,000 [2],[3],[12],[16]   1,093,000 [2],[3],[12],[16]   364,000 [5],[6],[7],[9],[24]      
Investment, Identifier [Axis]: Screenvision, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 5,072,000 [3],[11],[12]   5,072,000 [3],[11],[12]   5,095,000 [6],[8],[9]      
Investment, Identifier [Axis]: Screenvision, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (9,000) [3],[11],[12],[13]   (9,000) [3],[11],[12],[13]   (11,000) [6],[7],[8],[9]      
Investment, Identifier [Axis]: Screenvision, LLC | Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 32,487,000 [3],[11],[12]   32,487,000 [3],[11],[12]   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 469,000 [2],[3],[10]   469,000 [2],[3],[10]   436,000 [5],[6],[14],[48],[49]      
Investment, Identifier [Axis]: Security Holdings B.V. | Common Stock Series B                
Schedule of Investments [Line Items]                
Fair value 43,840,000 [2],[3],[10]   43,840,000 [2],[3],[10]   40,702,000 [5],[6],[48],[49]      
Investment, Identifier [Axis]: Security Holdings B.V. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 1,477,000 [2],[3],[13],[50]   1,477,000 [2],[3],[13],[50]   0      
Investment, Identifier [Axis]: Security Holdings B.V. | Revolver                
Schedule of Investments [Line Items]                
Fair value 11,251,000 [2],[3],[13],[50]   11,251,000 [2],[3],[13],[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 11,907,000 [2],[3],[50]   11,907,000 [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 3,146,000 [2],[3],[50]   3,146,000 [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 3,113,000 [2],[3],[12],[23]   3,113,000 [2],[3],[12],[23]   3,163,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: Serta Simmons Bedding LLC | Common Stock                
Schedule of Investments [Line Items]                
Fair value 627,000 [10]   627,000 [10]   1,009,000 [14]      
Investment, Identifier [Axis]: Shelf Bidco Ltd | Common Stock                
Schedule of Investments [Line Items]                
Fair value 4,728,000 [2],[3],[10]   4,728,000 [2],[3],[10]   4,704,000 [5],[6],[14],[15]      
Investment, Identifier [Axis]: Shelf Bidco Ltd | Second Out Term Loan                
Schedule of Investments [Line Items]                
Fair value [5],[6],[8],[9]         12,042,000      
Investment, Identifier [Axis]: Sierra Senior Loan Strategy JV I LLC | 89.01% Member Interest                
Schedule of Investments [Line Items]                
Fair value 0 [2],[10],[39],[45]   0 [2],[10],[39],[45]   16,404,000 [5],[15],[35],[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]: Sinari Invest | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 1,769,000 [2],[3],[12],[16]   1,769,000 [2],[3],[12],[16]   1,872,000 [5],[6],[7],[9],[17]      
Investment, Identifier [Axis]: Sisu Acquisitionco., Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 7,124,000 [3],[11],[12]   7,124,000 [3],[11],[12]   7,176,000 [6],[8],[9]      
Investment, Identifier [Axis]: Sixty-Five Bidco Limited | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[16] 5,431,000   5,431,000          
Investment, Identifier [Axis]: Sixty-Five Bidco Limited | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[22] 3,610,000   3,610,000          
Investment, Identifier [Axis]: Skyvault Holdings LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 14,616,000 [3],[39]   14,616,000 [3],[39]   16,020,000 [6],[7],[35] 3,586,000    
Investment, Identifier [Axis]: Skyvault Holdings LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 6,295,000 [3],[39]   6,295,000 [3],[39]   5,339,000 [6],[7],[14],[35] 1,195,000    
Investment, Identifier [Axis]: SmartShift Group, Inc. | Common Stock                
Schedule of Investments [Line Items]                
Fair value 769,000 [3],[10]   769,000 [3],[10]   594,000 [6],[14]      
Investment, Identifier [Axis]: SmartShift Group, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 12,740,000 [3],[12],[25]   12,740,000 [3],[12],[25]   12,814,000 [6],[9],[28]      
Investment, Identifier [Axis]: SmartShift Group, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[12],[13],[25]   0 [3],[12],[13],[25]   0 [6],[7],[9],[28]      
Investment, Identifier [Axis]: Smile Brands Group Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,420,000 [3],[11],[12],[20]   4,420,000 [3],[11],[12],[20]   4,577,000 [6],[8],[9]      
Investment, Identifier [Axis]: Solo Buyer, L.P. | Common Equity                
Schedule of Investments [Line Items]                
Fair value 284,000 [3],[10]   284,000 [3],[10]   269,000 [6],[14]      
Investment, Identifier [Axis]: Solo Buyer, L.P. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 14,669,000 [3],[11],[12]   14,669,000 [3],[11],[12]   14,798,000 [6],[8],[9]      
Investment, Identifier [Axis]: Solo Buyer, L.P. | Revolver                
Schedule of Investments [Line Items]                
Fair value 779,000 [3],[11],[12],[13]   779,000 [3],[11],[12],[13]   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 [11],[12] 1,593,000   1,593,000          
Investment, Identifier [Axis]: Sonicwall US Holdings Inc | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value [11],[12] 609,000   609,000          
Investment, Identifier [Axis]: Sound Point CLO XX, Ltd. | Subordinated Structured Notes                
Schedule of Investments [Line Items]                
Fair value [5],[14],[15]         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],[11],[12]   2,618,000 [3],[11],[12]   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],[11],[12],[13]   0 [3],[11],[12],[13]   (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],[11],[12],[13] 2,892,000   2,892,000          
Investment, Identifier [Axis]: Stage 3 Holdco LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (7,000)   (7,000)          
Investment, Identifier [Axis]: Starnmeer B.V. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,483,000 [2],[3],[12],[25]   2,483,000 [2],[3],[12],[25]   2,475,000 [5],[6],[9],[28]      
Investment, Identifier [Axis]: Sunrise Acquisition Bidco Limited | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,607,000 [2],[3],[12],[13],[22]   2,607,000 [2],[3],[12],[13],[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 4,502,000 [3],[11],[12]   4,502,000 [3],[11],[12]   4,249,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Superjet Buyer, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (19,000) [3],[11],[12],[13]   (19,000) [3],[11],[12],[13]   (13,000) [6],[7],[8],[9]      
Investment, Identifier [Axis]: Surface Finishing Technologies Inc. | Common Stock                
Schedule of Investments [Line Items]                
Fair value [3],[10] 254,000   254,000          
Investment, Identifier [Axis]: Surface Finishing Technologies Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[12],[13],[25] 7,315,000   7,315,000          
Investment, Identifier [Axis]: Surface Finishing Technologies Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[12],[13],[25] 0   0          
Investment, Identifier [Axis]: Surgical Precision Instruments GmbH | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[13],[16] 3,544,000   3,544,000          
Investment, Identifier [Axis]: Swoop Intermediate III, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 4,280,000 [3],[11],[12],[13]   4,280,000 [3],[11],[12],[13]   1,977,000 [6],[7],[9],[19]      
Investment, Identifier [Axis]: Swoop Intermediate III, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[11],[12],[13]   0 [3],[11],[12],[13]   0 [6],[7],[9],[19]      
Investment, Identifier [Axis]: Syniverse Holdings, Inc. | Series A Preferred Equity                
Schedule of Investments [Line Items]                
Fair value 9,697,000 [3]   9,697,000 [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 2,627,000 [3],[12],[13],[18]   2,627,000 [3],[12],[13],[18]   2,599,000 [6],[7],[9],[19]      
Investment, Identifier [Axis]: Syntax Midco 2 Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 518,000 [3],[12],[13],[18]   518,000 [3],[12],[13],[18]   797,000 [6],[7],[9],[19]      
Investment, Identifier [Axis]: TA KHP Aggregator, L.P. | Common Stock                
Schedule of Investments [Line Items]                
Fair value 101,000 [3],[10]   101,000 [3],[10]   56,000 [6],[14]      
Investment, Identifier [Axis]: TA KHP Aggregator, L.P. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 1,010,000 [3],[11],[12],[13]   1,010,000 [3],[11],[12],[13]   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],[11],[12],[13]   (3,000) [3],[11],[12],[13]   (4,000) [6],[7],[8],[9]      
Investment, Identifier [Axis]: TA KHP Aggregator, L.P. | Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,527,000 [3]   2,527,000 [3]   2,226,000 [6]      
Investment, Identifier [Axis]: TA SL Cayman Aggregator Corp. | Common Stock                
Schedule of Investments [Line Items]                
Fair value 95,000 [3],[10]   95,000 [3],[10]   93,000 [6],[14]      
Investment, Identifier [Axis]: TA SL Cayman Aggregator Corp. | Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair value 3,530,000 [3],[12],[25]   3,530,000 [3],[12],[25]   3,148,000 [6],[28]      
Investment, Identifier [Axis]: TAPCO Buyer LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 9,482,000 [3],[11],[12]   9,482,000 [3],[11],[12]   9,492,000 [6],[9],[19]      
Investment, Identifier [Axis]: TAPCO Buyer LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 433,000 [3]   433,000 [3]   523,000 [6],[14]      
Investment, Identifier [Axis]: TAPCO Buyer LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 199,000 [3],[11],[12],[13]   199,000 [3],[11],[12],[13]   (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 6,659,000 [3],[12],[13],[18]   6,659,000 [3],[12],[13],[18]   5,401,000 [6],[7],[9],[19]      
Investment, Identifier [Axis]: THG Acquisition, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 574,000 [3],[12],[13],[18]   574,000 [3],[12],[13],[18]   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 20,110,000 [3],[11],[12],[13]   20,110,000 [3],[11],[12],[13]   16,833,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc. | Partnership Units                
Schedule of Investments [Line Items]                
Fair value 49,000 [3],[10]   49,000 [3],[10]   36,000 [6],[14]      
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 0 [3],[11],[12],[13]   0 [3],[11],[12],[13]   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],[11],[12],[13] 6,373,000   6,373,000          
Investment, Identifier [Axis]: Tallman Equipment Co., Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (13,000)   (13,000)          
Investment, Identifier [Axis]: Tank Holding Corp | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value 7,504,000 [3],[12],[18]   7,504,000 [3],[12],[18]   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 2,896,000 [3],[12],[18]   2,896,000 [3],[12],[18]   2,985,000 [6],[9],[19]      
Investment, Identifier [Axis]: Tank Holding Corp | Revolver                
Schedule of Investments [Line Items]                
Fair value 58,000 [3],[12],[13],[18]   58,000 [3],[12],[13],[18]   (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 [5],[6],[7],[9],[26]         1,779,000      
Investment, Identifier [Axis]: Team Air Distributing, LLC | Partnership Equity                
Schedule of Investments [Line Items]                
Fair value 0 [3],[10]   0 [3],[10]   212,000 [6],[14]      
Investment, Identifier [Axis]: Team Air Distributing, LLC | Preferred Stock 1                
Schedule of Investments [Line Items]                
Fair value [3],[10] 0   0          
Investment, Identifier [Axis]: Team Air Distributing, LLC | Preferred Stock 2                
Schedule of Investments [Line Items]                
Fair value [3],[10] 0   0          
Investment, Identifier [Axis]: Team Air Distributing, LLC | Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair value 634,000 [3],[20]   634,000 [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 999,000 [2],[3],[12],[13],[30]   999,000 [2],[3],[12],[13],[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],[17]         4,114,000      
Investment, Identifier [Axis]: Techone B.V. | Revolver                
Schedule of Investments [Line Items]                
Fair value [5],[6],[7],[9],[17]         (2,000)      
Investment, Identifier [Axis]: Tencarva Machinery Company, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 9,167,000 [3],[11],[12],[13]   9,167,000 [3],[11],[12],[13]   7,507,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Tencarva Machinery Company, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (8,000) [3],[11],[12],[13]   (8,000) [3],[11],[12],[13]   (17,000) [6],[7],[8],[9]      
Investment, Identifier [Axis]: Terrybear, Inc. | Partnership Equity                
Schedule of Investments [Line Items]                
Fair value 0 [3],[10]   0 [3],[10]   0 [6],[14]      
Investment, Identifier [Axis]: Terrybear, Inc. | Preferred Stock                
Schedule of Investments [Line Items]                
Fair value [3],[10] 169,000   169,000          
Investment, Identifier [Axis]: Terrybear, Inc. | Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair value [6]         269,000      
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 11,488,000 [3],[11],[12]   11,488,000 [3],[11],[12]   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 (23,000) [3],[11],[12],[13]   (23,000) [3],[11],[12],[13]   (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 55,000 [11],[12]   55,000 [11],[12]   58,000 [8],[9]      
Investment, Identifier [Axis]: The Octave Music Group, Inc. | Partnership Equity                
Schedule of Investments [Line Items]                
Fair value 1,401,000 [3],[10]   1,401,000 [3],[10]   1,956,000 [6],[14]      
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 2,261,000 [10],[39],[45]   2,261,000 [10],[39],[45]   4,271,000 [14],[35],[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],[10] 0   0          
Investment, Identifier [Axis]: Transportation Insight, LLC | Class A Preferred Units                
Schedule of Investments [Line Items]                
Fair value [3],[10] 4,535,000   4,535,000          
Investment, Identifier [Axis]: Transportation Insight, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12] 4,216,000   4,216,000          
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],[11],[12],[13]   641,000 [3],[11],[12],[13]   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 11,303,000 [3],[11],[12]   11,303,000 [3],[11],[12]   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 4,786,000 [3],[11],[12]   4,786,000 [3],[11],[12]   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 744,000 [2],[3],[12],[16]   744,000 [2],[3],[12],[16]   769,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: UBC Ledgers Holding AB | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value 1,606,000 [2],[3],[12],[13],[59]   1,606,000 [2],[3],[12],[13],[59]   1,738,000 [5],[6],[7],[9],[60]      
Investment, Identifier [Axis]: UHY Advisors, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 15,353,000 [3],[11],[12],[13]   15,353,000 [3],[11],[12],[13]   8,295,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: UHY Advisors, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 740,000 [3],[11],[12],[13]   740,000 [3],[11],[12],[13]   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 11,922,000 [2],[3],[12],[22]   11,922,000 [2],[3],[12],[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],[12],[13],[16] 1,276,000   1,276,000          
Investment, Identifier [Axis]: US Bank National Association Series 2025-1 | Structured Note - Class R                
Schedule of Investments [Line Items]                
Fair value 2,973,000 [2],[3],[11],[12]   2,973,000 [2],[3],[11],[12]   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 2,911,000 [2],[12],[18]   2,911,000 [2],[12],[18]   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 17,712,000 [3],[12],[18]   17,712,000 [3],[12],[18]   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 1,054,000 [2],[3],[12],[29]   1,054,000 [2],[3],[12],[29]   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 707,000 [2],[3],[12],[16]   707,000 [2],[3],[12],[16]   471,000 [5],[6],[7],[9],[17]      
Investment, Identifier [Axis]: Unosquare, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,259,000 [3],[12],[13],[18]   2,259,000 [3],[12],[13],[18]   2,362,000 [6],[7],[9],[19]      
Investment, Identifier [Axis]: Unosquare, LLC | LLC Units                
Schedule of Investments [Line Items]                
Fair value 149,000 [3],[10]   149,000 [3],[10]   216,000 [6],[14]      
Investment, Identifier [Axis]: Unosquare, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value (20,000) [3],[12],[13],[18]   (20,000) [3],[12],[13],[18]   (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 1,769,000 [2],[3],[12],[16]   1,769,000 [2],[3],[12],[16]   1,837,000 [5],[6],[9],[17]      
Investment, Identifier [Axis]: Utac Ceram | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value 3,653,000 [2],[3],[11],[12]   3,653,000 [2],[3],[11],[12]   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 46,049,000 [3],[11],[12]   46,049,000 [3],[11],[12]   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],[10]   0 [3],[10]   0 [6],[14]      
Investment, Identifier [Axis]: VOYA CLO 2015-2, LTD. | Subordinated Structured Notes                
Schedule of Investments [Line Items]                
Fair value [5],[14],[15]         41,000      
Investment, Identifier [Axis]: VOYA CLO 2016-2, LTD. | Subordinated Structured Notes                
Schedule of Investments [Line Items]                
Fair value [5],[14],[15]         1,000      
Investment, Identifier [Axis]: VPP Intermediate Holdings, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] 4,256,000   4,256,000          
Investment, Identifier [Axis]: VPP Intermediate Holdings, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[11],[12],[13] (2,000)   (2,000)          
Investment, Identifier [Axis]: Velocity Pooling Vehicle, LLC | Common Stock                
Schedule of Investments [Line Items]                
Fair value 2,000 [3],[10]   2,000 [3],[10]   2,000 [6],[14],[15]      
Investment, Identifier [Axis]: Velocity Pooling Vehicle, LLC | Warrants                
Schedule of Investments [Line Items]                
Fair value 3,000 [3],[10]   3,000 [3],[10]   3,000 [6],[14],[15]      
Investment, Identifier [Axis]: Victoria Bidco Limited | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 3,988,000 [2],[3],[12],[29]   3,988,000 [2],[3],[12],[29]   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],[12],[13],[18] 8,847,000   8,847,000          
Investment, Identifier [Axis]: Vista Acquisition, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value [3],[12],[13],[18] (8,000)   (8,000)          
Investment, Identifier [Axis]: Vista Global Holding Ltd | Structured Secured Note - Class C                
Schedule of Investments [Line Items]                
Fair value 457,000 [2]   457,000 [2]   482,000 [5]      
Investment, Identifier [Axis]: Vital Buyer, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 13,093,000 [3],[12],[25]   13,093,000 [3],[12],[25]   13,232,000 [6],[8],[9]      
Investment, Identifier [Axis]: Vital Buyer, LLC | Partnership Units                
Schedule of Investments [Line Items]                
Fair value 482,000 [3],[10]   482,000 [3],[10]   566,000 [6]      
Investment, Identifier [Axis]: WWEC Holdings III Corp | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 11,979,000 [3],[11],[12]   11,979,000 [3],[11],[12]   12,049,000 [6],[8],[9]      
Investment, Identifier [Axis]: WWEC Holdings III Corp | Revolver                
Schedule of Investments [Line Items]                
Fair value (5,000) [3],[11],[12],[13]   (5,000) [3],[11],[12],[13]   (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 60,000 [2],[10],[39],[45]   60,000 [2],[10],[39],[45]   4,489,000 [5],[35],[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]: Webcentral DEH | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[13],[16] (98,000)   (98,000)          
Investment, Identifier [Axis]: West-NR Acquisitionco, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 12,944,000 [3],[11],[12],[13]   12,944,000 [3],[11],[12],[13]   10,900,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Whitcraft Holdings, Inc. | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 12,949,000 [3],[11],[12]   12,949,000 [3],[11],[12]   12,845,000 [6],[7],[8],[9]      
Investment, Identifier [Axis]: Whitcraft Holdings, Inc. | LP Units                
Schedule of Investments [Line Items]                
Fair value 1,537,000 [3],[10]   1,537,000 [3],[10]   1,164,000 [6],[14]      
Investment, Identifier [Axis]: Whitcraft Holdings, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value 1,006,000 [3],[11],[12],[13]   1,006,000 [3],[11],[12],[13]   (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 2,275,000 [2],[3],[11],[12]   2,275,000 [2],[3],[11],[12]   2,247,000 [5],[6],[8],[9]      
Investment, Identifier [Axis]: Woodland Foods, LLC | Common Stock                
Schedule of Investments [Line Items]                
Fair value 2,095,000 [3],[10]   2,095,000 [3],[10]   1,815,000 [6],[14]      
Investment, Identifier [Axis]: Woodland Foods, LLC | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 17,004,000 [3],[11],[12]   17,004,000 [3],[11],[12]   17,036,000 [6],[8],[9]      
Investment, Identifier [Axis]: Woodland Foods, LLC | Preferred Stock 1                
Schedule of Investments [Line Items]                
Fair value 745,000 [3]   745,000 [3]   551,000 [6]      
Investment, Identifier [Axis]: Woodland Foods, LLC | Preferred Stock 2                
Schedule of Investments [Line Items]                
Fair value 166,000 [3]   166,000 [3]   145,000 [6]      
Investment, Identifier [Axis]: Woodland Foods, LLC | Revolver                
Schedule of Investments [Line Items]                
Fair value 579,000 [3],[11],[12],[13]   579,000 [3],[11],[12],[13]   (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 13,539,000 [3],[11],[12]   13,539,000 [3],[11],[12]   13,757,000 [6],[9],[28]      
Investment, Identifier [Axis]: World 50, Inc. | Revolver                
Schedule of Investments [Line Items]                
Fair value (2,000) [3],[11],[12],[13]   (2,000) [3],[11],[12],[13]   0 [6],[7],[9],[28]      
Investment, Identifier [Axis]: Xeinadin Bidco Limited | Common Stock                
Schedule of Investments [Line Items]                
Fair value 607,000 [2],[3],[10]   607,000 [2],[3],[10]   1,228,000 [5],[6],[14]      
Investment, Identifier [Axis]: Xeinadin Bidco Limited | First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair value 318,000 [2],[3],[12],[23]   318,000 [2],[3],[12],[23]   329,000 [5],[6],[9],[24]      
Investment, Identifier [Axis]: Xeinadin Bidco Limited | First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair value 9,349,000 [2],[3],[12],[29]   9,349,000 [2],[3],[12],[29]   9,465,000 [5],[6],[9],[27]      
Investment, Identifier [Axis]: Xeinadin Bidco Limited | Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair value 5,043,000 [2],[3],[12],[29]   5,043,000 [2],[3],[12],[29]   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 2,882,000 [2],[3],[12],[23]   2,882,000 [2],[3],[12],[23]   1,707,000 [5],[6],[7],[9],[24]      
Investment, Identifier [Axis]: Zeppelin Bidco Limited | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value 2,183,000 [2],[3],[12],[29],[39]   2,183,000 [2],[3],[12],[29],[39]   2,565,000 [5],[6],[9],[27],[35] 0    
Investment, Identifier [Axis]: Zeppelin Bidco Limited | Ordinary Shares                
Schedule of Investments [Line Items]                
Fair value 0 [2],[3],[10],[39]   0 [2],[3],[10],[39]   82,000 [5],[6],[14],[35]      
Investment, Identifier [Axis]: Zeppelin Bidco Limited | Ordinary Shares(879 shares)                
Schedule of Investments [Line Items]                
Fair value         $ 82,000 $ 0    
Investment, Identifier [Axis]: Zest Bidco GmbH | First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair value [2],[3],[12],[13],[23] 2,180,000   2,180,000          
Investment, Identifier [Axis]: iCreditWorks LLC | Preferred Stock                
Schedule of Investments [Line Items]                
Fair value [3] 12,032,000   12,032,000          
Investment, Identifier [Axis]: iCreditWorks LLC | Warrants                
Schedule of Investments [Line Items]                
Fair value [3],[10] $ 0   $ 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 22.8% of total investments at fair value as of September 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] The interest rate on these loans is subject to 3 Month SOFR, which as of September 30, 2026 was 4.08330%.
[12] Debt investment includes interest rate floor feature.
[13] Position or portion thereof is an unfunded loan or equity commitment.
[14] Investment is non-income producing.
[15] 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.
[16] The interest rate on these loans is subject to 3 Month EURIBOR, which as of September 30, 2026 was 2.61700%.
[17] The interest rate on these loans is subject to 3 Month EURIBOR, which as of December 31, 2025 was 2.02600%.
[18] The interest rate on these loans is subject to 1 Month SOFR, which as of September 30, 2026 was 3.91252%.
[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 September 30, 2026 was 3.74800%.
[23] The interest rate on these loans is subject to 6 Month EURIBOR, which as of September 30, 2026 was 3.07400%.
[24] The interest rate on these loans is subject to 6 Month EURIBOR, which as of December 31, 2025 was 2.10700%.
[25] The interest rate on these loans is subject to 6 Month SOFR, which as of September 30, 2026 was 4.26907%.
[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 SOFR, which as of December 31, 2025 was 3.57418%.
[29] The interest rate on these loans is subject to 6 Month SONIA, which as of September 30, 2026 was 3.76542%.
[30] The interest rate on these loans is subject to 3 Month BBSY, which as of September 30, 2026 was 4.77150%.
[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 September 30, 2026 was 2.30555%.
[33] The interest rate on these loans is subject to 1 Month EURIBOR, which as of December 31, 2025 was 1.93900%.
[34] Non-accrual investment
[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 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
[36] Non-accrual investment
[37] Non-accrual investment.
[38] The interest rate on these loans is subject to 3 Month CORRA, which as of December 31, 2025 was 2.30000%.
[39] 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 nine months ended September 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)September 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 $— $(1,304)$(1,233)$806 $— $— 
Ordinary Shares
(42,639,498 shares)
— — — — — — — 
1,731 — (1,304)(1,233)806 — — 
Celebration Bidco, LLC(d)
First Lien Senior Secured Term Loan (SOFR + 8.00%, 12.1% Cash)
8,463 43 — — 72 8,578 774 
Common Stock
(1,243,071 shares)
8,925 — — — 1,293 10,218 — 
17,388 43 — — 1,365 18,796 774 
December 31, 2025
Value		Gross Additions
(a)		Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)September 30,
2026
Value		Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Coastal Marina Holdings, LLC(d)
Subordinated Term Loan
(8.0% Cash)
$15,891 $94 $(226)$— $25 $15,784 $1,088 
Subordinated Term Loan
(8.0% Cash)
7,327 46 (339)— 17 7,051 504 
LLC Units (3,518,097 units)
19,983 — — — 1,302 21,285 513 
43,201 140 (565)— 1,344 44,120 2,105 
Eclipse Business Capital, LLC(d)
First Lien Senior Secured Term Loan (SOFR + 6.60%, 10.5% Cash)
— 3,333 — — — 3,333 124 
Revolver (SOFR + 6.60%, 10.5% Cash)
9,909 44,862 (42,485)— (13)12,273 774 
Second Lien Senior Secured Term Loan (7.5% Cash)
4,546 4 — — (4)4,546 265 
LLC units (89,447,396 units)
139,539 — — — — 139,539 12,111 
153,994 48,199 (42,485)— (17)159,691 13,274 
EMI Porta Holdco LLC(d)
First Lien Senior Secured Term Loan (SOFR + 5.50%, 9.2% Cash)
— 4,656 (252)— — 4,404 166 
Revolver (SOFR + 5.50%, 9.2% Cash)
— 127 (127)— — — 2 
Preferred Stock
(2,322,860 shares)
(12.0% PIK)
— 2,432 — — 7 2,439 109 
Common Stock
(6,017,772 shares)
— 3,004 — — 907 3,911 — 
— 10,219 (379)— 914 10,754 277 
Jocassee Partners LLC
9.1% Member Interest
37,986 — — — (6,827)31,159 8,564 
37,986 — — — (6,827)31,159 8,564 
Policy Services Company, LLC(d)
First Lien Senior Secured Term Loan (SOFR + 6.00%, 14.3% PIK)
— 56,563 — — (7,594)48,969 4,196 
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)
— — — — — — 
— 56,563 — — (7,594)48,969 4,196 
Rocade Holdings LLC(d)
Second Lien Senior Secured Term Loan (SOFR + 8.00%, 11.7% Cash)
2,667 9,292 — — (10)11,949 704 
Preferred LP Units (71,000 units) (SOFR + 6.00%, 9.9% Cash)
89,450 6,439 (7,010)— (8)88,871 6,439 
Common LP Units (23.8 units)
3,596 — — — 1,873 5,469 1,236 
95,713 15,731 (7,010)— 1,855 106,289 8,379 
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 (1,527)— — 14,616 1,427 
LLC Units (5,381,304.8 units)
5,339 41 (2,140)— 3,055 6,295 1,899 
21,359 164 (3,667)— 3,055 20,911 3,326 
Thompson Rivers LLC
16.0% Member Interest
4,271 — (1,997)— (13)2,261 — 
4,271 — (1,997)— (13)2,261 — 
December 31, 2025
Value		Gross Additions
(a)		Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)September 30,
2026
Value		Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Waccamaw River LLC
20% Member Interest
$4,489 $— $(4,406)$— $(23)$60 $161 
4,489 — (4,406)— (23)60 161 
Zeppelin Bidco Limited(d)
First Lien Senior Secured Term Loan (SONIA + 6.50%, 3.8% Cash, 6.5% PIK)
2,565 282 — — (664)2,183 216 
Ordinary Shares (879 shares)
82 — — — (82)— — 
2,647 282 — — (746)2,183 216 
Total Affiliate Investments$399,183 $131,341 $(78,250)$(1,233)$(5,848)$445,193 $41,495 
(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
[40] The interest rate on these loans is subject to 6 Month CORRA, which as of September 30, 2026 was 2.29821%.
[41] The interest rate on these loans is subject to 1 Month EURIBOR, which as of September 30, 2026 was 2.49600%.
[42] The interest rate on these loans is subject to 3 Month BKBM, which as of September 30, 2026 was 3.13000%.
[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 nine months ended September 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)September 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 (7.7% Cash)
$— $4,833 $— $— $(62)$4,771 $106 
First Lien Senior Secured Term Loan (EURIBOR + 7.65%, 9.9% Cash)
— 5,582 (3,733)(63)(81)1,705 198 
Common Equity Interest (25,404 Shares)
14,143 — — — (5,603)8,540 — 
14,143 10,415 (3,733)(63)(5,746)15,016 304 
Security Holdings B.V(d)
First Lien Senior Secured Term Loan (6.0% PIK)
— 1,496 — — (19)1,477 16 
Bridge Loan (5.0% PIK)
6,997 176 — — — 7,173 268 
Revolver (6.0% PIK)
6,225 5,527 — (6)(495)11,251 443 
Senior Subordinated Term Loan (3.1% PIK)
11,565 342 — — — 11,907 277 
Senior Unsecured Term Loan (15.0% PIK)
2,909 335 — — (98)3,146 337 
Common Stock Series A (17,100 shares)
436 — — — 33 469 — 
Common Stock Series B (1,236 shares)
40,702 — — — 3,138 43,840 — 
68,834 7,876 — (6)2,559 79,263 1,341 
Total Control Investments$82,977 $18,291 $(3,733)$(69)$(3,187)$94,279 $1,645 
(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 SONIA, which as of September 30, 2026 was 3.73630%.
[52] The interest rate on these loans is subject to 3 Month NIBOR, which as of September 30, 2026 was 4.80000%.
[53] The interest rate on these loans is subject to 1 Month NIBOR, which as of December 31, 2025 was 3.89000%.
[54] The interest rate on these loans is subject to 6 Month BBSY, which as of December 31, 2025 was 4.12100%.
[55] The interest rate on these loans is subject to 6 Month BBSY, which as of September 30, 2026 was 5.12300%.
[56] The interest rate on these loans is subject to 1 Month BBSY, which as of December 31, 2025 was 3.55000%.
[57] The interest rate on these loans is subject to 3 Month SARON, which as of September 30, 2026 was -0.04590%
[58] The interest rate on these loans is subject to 3 Month SARON, which as of December 31, 2025 was -0.04360%.
[59] The interest rate on these loans is subject to 3 Month STIBOR, which as of September 30, 2026 was 2.00700%.
[60] The interest rate on these loans is subject to 3 Month STIBOR, which as of December 31, 2025 was 1.95800%.