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INVESTMENTS - Waccamaw River LLC (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2025
USD ($)
loan
Mar. 31, 2024
USD ($)
Dec. 31, 2024
USD ($)
loan
Dec. 31, 2023
USD ($)
Aug. 12, 2022
USD ($)
Jul. 08, 2021
USD ($)
Feb. 08, 2021
USD ($)
May 13, 2020
USD ($)
Schedule of Investments [Line Items]                
Total dividend income $ 10,742,000 $ 8,477,000            
Fair Value 2,571,228,000   $ 2,449,272,000          
Waccamaw River, LLC                
Schedule of Investments [Line Items]                
Total dividend income 300,000 0            
Distributions of realized gains by investment companies $ 1,700,000 0            
Investment owned, outstanding loans | loan 6,758   8,095          
Average loan amount $ 7,745   $ 7,791          
Investment company, remaining average life to maturity 34 months 15 days   35 months 15 days          
Investment owned, weighted average yield rate 12.20%   12.00%          
Waccamaw River, LLC | Consumer Loan                
Schedule of Investments [Line Items]                
Fair Value $ 36,700,000   $ 45,500,000          
Waccamaw River, LLC | Cash and Cash Equivalents                
Schedule of Investments [Line Items]                
Fair Value 4,000,000   4,300,000          
All Member Of Waccamaw River LLC                
Schedule of Investments [Line Items]                
Total contributed capital 125,000,000              
Waccamaw River, LLC                
Schedule of Investments [Line Items]                
Dividends 10,300,000 $ 0            
Investment, Identifier [Axis]: 1WorldSync, Inc., First Lien Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3] 7,030,000              
Investment, Identifier [Axis]: 1WorldSync, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [4],[5],[6]     7,049,000          
Investment, Identifier [Axis]: A.T. Holdings II LTD, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 8,303,000 [3],[7],[8]   8,479,000 [6],[9],[10]          
Investment, Identifier [Axis]: AD Bidco, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 10,073,000 [1],[2],[3],[11]   10,099,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: AD Bidco, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [1],[2],[3],[11]   0 [4],[5],[6],[12]          
Investment, Identifier [Axis]: ADB Safegate, Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 7,315,000 [1],[2],[8]   6,523,000 [4],[5],[6],[10]          
Investment, Identifier [Axis]: AIT Worldwide Logistics Holdings, Inc., Partnership Units                
Schedule of Investments [Line Items]                
Fair Value 587,000 [3],[13]   550,000 [6],[14]          
Investment, Identifier [Axis]: AMMC CLO 22, Limited Series 2018-22A, Subordinated Structured Notes                
Schedule of Investments [Line Items]                
Fair Value 469,000 [3],[8],[15]   1,733,000 [6],[10],[16]          
Investment, Identifier [Axis]: APC1 Holding, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,484,000 [2],[3],[8],[17]   2,370,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: APOG Bidco Pty Ltd, Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [5],[6],[10],[19]     864,000          
Investment, Identifier [Axis]: ASC Communications, LLC, Class A Units                
Schedule of Investments [Line Items]                
Fair Value 935,000 [3],[13]   869,000 [6]          
Investment, Identifier [Axis]: ASC Communications, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,601,000 [2],[3],[20]   7,344,000 [5],[6],[21]          
Investment, Identifier [Axis]: ASC Communications, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [2],[3],[11],[20]   0 [5],[6],[12],[21]          
Investment, Identifier [Axis]: ATL II MRO Holdings Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 19,013,000 [1],[2],[3]   19,021,000 [4],[5],[6]          
Investment, Identifier [Axis]: ATL II MRO Holdings Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value (43,000) [1],[2],[3],[11]   (49,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: AVSC Holding Corp., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[20] 2,000              
Investment, Identifier [Axis]: AVSC Holding Corp., First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value [5],[21]     148,000          
Investment, Identifier [Axis]: AVSC Holding Corp., First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value [5],[21]     2,000          
Investment, Identifier [Axis]: Accelerant Holdings, Class A Convertible Preferred Equity                
Schedule of Investments [Line Items]                
Fair Value 6,472,000 [3],[13]   6,347,000 [6],[14]          
Investment, Identifier [Axis]: Accelerant Holdings, Class B Convertible Preferred Equity                
Schedule of Investments [Line Items]                
Fair Value 2,375,000 [3],[13]   2,285,000 [6],[14]          
Investment, Identifier [Axis]: Accelerant Holdings, Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value 8,287,000 [3],[13]   7,840,000 [6],[14]          
Investment, Identifier [Axis]: Accelevation LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[11],[20] 2,939,000              
Investment, Identifier [Axis]: Accelevation LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[11],[20] 104,000              
Investment, Identifier [Axis]: Acclime Holdings HK Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,470,000 [2],[3],[8],[22]   2,438,000 [5],[6],[10],[23]          
Investment, Identifier [Axis]: Accurus Aerospace Corporation, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[13]   0 [6],[14]          
Investment, Identifier [Axis]: Accurus Aerospace Corporation, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 11,738,000 [1],[2],[3]   11,612,000 [4],[5],[6]          
Investment, Identifier [Axis]: Accurus Aerospace Corporation, Revolver                
Schedule of Investments [Line Items]                
Fair Value 2,398,000 [1],[2],[3],[11]   1,768,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Acogroup, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 5,497,000 [2],[3],[8],[17]   5,412,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Adhefin International, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,784,000 [2],[3],[8],[11],[17]   1,716,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: Adhefin International, Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair Value 345,000 [2],[3],[8],[17]   326,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: Advantage Software Company (The), LLC, Class A1 Partnership Units                
Schedule of Investments [Line Items]                
Fair Value 581,000 [3],[13]   593,000 [6],[14]          
Investment, Identifier [Axis]: Advantage Software Company (The), LLC, Class A2 Partnership Units                
Schedule of Investments [Line Items]                
Fair Value 150,000 [3],[13]   153,000 [6],[14]          
Investment, Identifier [Axis]: Advantage Software Company (The), LLC, Class B1 Partnership Units                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[13]   0 [6],[14]          
Investment, Identifier [Axis]: Advantage Software Company (The), LLC, Class B2 Partnership Units                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[13]   0 [6],[14]          
Investment, Identifier [Axis]: Air Canada 2020-2 Class B Pass Through Trust, Structured Secured Note - Class B                
Schedule of Investments [Line Items]                
Fair Value 2,393,000   2,411,000          
Investment, Identifier [Axis]: AirX Climate Solutions, Inc., First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 3,260,000 [1],[2],[3]   2,710,000 [4],[5],[6]          
Investment, Identifier [Axis]: AirX Climate Solutions, Inc., First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 3,270,000 [1],[2],[3],[11]   3,828,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: AirX Climate Solutions, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [1],[2],[3],[11]   0 [4],[5],[6],[12]          
Investment, Identifier [Axis]: AlliA Insurance Brokers NV, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,797,000 [2],[3],[8],[11],[17]   4,569,000 [5],[6],[10],[12],[24]          
Investment, Identifier [Axis]: Alpine SG, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 12,775,000 [1],[2],[3],[15]   22,949,000 [4],[5],[6],[16]          
Investment, Identifier [Axis]: Amalfi Midco, Class B Common Stock                
Schedule of Investments [Line Items]                
Fair Value 2,553,000 [3],[8],[13]   1,239,000 [6],[10],[14]          
Investment, Identifier [Axis]: Amalfi Midco, Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 311,000 [3],[8]   290,000 [6],[10]          
Investment, Identifier [Axis]: Amalfi Midco, Subordinated Loan Notes                
Schedule of Investments [Line Items]                
Fair Value 5,819,000 [3],[8]   5,492,000 [6],[10]          
Investment, Identifier [Axis]: Amalfi Midco, Warrants                
Schedule of Investments [Line Items]                
Fair Value 1,075,000 [3],[8],[13]   919,000 [6],[10],[14]          
Investment, Identifier [Axis]: Americo Chemical Products, LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 120,000 [3],[13]   119,000 [6],[14]          
Investment, Identifier [Axis]: Americo Chemical Products, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,557,000 [2],[3],[20]   2,611,000 [5],[6],[21]          
Investment, Identifier [Axis]: Americo Chemical Products, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (8,000) [2],[3],[11],[20]   (7,000) [5],[6],[12],[21]          
Investment, Identifier [Axis]: AnalytiChem Holding GmbH, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 4,076,000 [2],[3],[8],[17]   2,995,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: AnalytiChem Holding GmbH, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 1,657,000 [2],[3],[8],[25]   1,576,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: AnalytiChem Holding GmbH, First Lien Senior Secured Term Loan 3                
Schedule of Investments [Line Items]                
Fair Value 1,011,000 [1],[2],[3],[8]   904,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: AnalytiChem Holding GmbH, First Lien Senior Secured Term Loan 4                
Schedule of Investments [Line Items]                
Fair Value [4],[5],[6],[10]     1,008,000          
Investment, Identifier [Axis]: Apex Bidco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [5],[6],[10],[26]     3,180,000          
Investment, Identifier [Axis]: Apex Bidco Limited, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[8],[27] 1,830,000              
Investment, Identifier [Axis]: Apex Bidco Limited, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[8],[27] 1,399,000              
Investment, Identifier [Axis]: Apex Bidco Limited, Subordinated Senior Unsecured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 310,000 [3],[8]   297,000 [6],[10]          
Investment, Identifier [Axis]: Apidos CLO XXIV, Series 2016-24A, Subordinated Structured Notes                
Schedule of Investments [Line Items]                
Fair Value 2,429,000 [8],[15]   3,272,000 [10],[16]          
Investment, Identifier [Axis]: Aptus 1829. GmbH, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[8],[13]   0 [6],[10],[14]          
Investment, Identifier [Axis]: Aptus 1829. GmbH, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,082,000 [2],[3],[8],[25]   1,994,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Aptus 1829. GmbH, Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value 49,000 [3],[8],[13]   40,000 [6],[10],[14]          
Investment, Identifier [Axis]: Apus Bidco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,718,000 [2],[3],[8],[28]   3,608,000 [5],[6],[10],[29]          
Investment, Identifier [Axis]: Aquavista Watersides 2 LTD, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,481,000 [2],[3],[8],[28]   6,314,000 [5],[6],[10],[12],[26]          
Investment, Identifier [Axis]: Aquavista Watersides 2 LTD, Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,166,000 [2],[3],[8],[28]   2,119,000 [5],[6],[10],[26]          
Investment, Identifier [Axis]: Arc Education, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,982,000 [2],[3],[8],[11],[17]   3,807,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: Arch Global Precision LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 8,805,000 [1],[2],[3]   8,769,000 [4],[5],[6]          
Investment, Identifier [Axis]: Archimede, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,042,000 [2],[3],[8],[17]   5,676,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: Argus Bidco Limited, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[8],[13]   0 [6],[10],[14]          
Investment, Identifier [Axis]: Argus Bidco Limited, Equity Loan Notes                
Schedule of Investments [Line Items]                
Fair Value 31,000 [3],[8]   33,000 [6],[10]          
Investment, Identifier [Axis]: Argus Bidco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[8],[11],[28] 1,607,000              
Investment, Identifier [Axis]: Argus Bidco Limited, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 1,826,000 [2],[3],[8],[25]   1,773,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: Argus Bidco Limited, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 125,000 [2],[3],[8],[22]   127,000 [4],[5],[6],[10]          
Investment, Identifier [Axis]: Argus Bidco Limited, First Lien Senior Secured Term Loan 3                
Schedule of Investments [Line Items]                
Fair Value [5],[6],[10],[12],[26]     1,584,000          
Investment, Identifier [Axis]: Argus Bidco Limited, Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value 31,000 [3],[8]   33,000 [6],[10]          
Investment, Identifier [Axis]: Argus Bidco Limited, Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 792,000 [3],[8]   777,000 [6],[10]          
Investment, Identifier [Axis]: Armstrong Transport Group (Pele Buyer, LLC), First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 5,709,000 [2],[3],[22]   5,637,000 [4],[5],[6]          
Investment, Identifier [Axis]: Artemis Bidco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 270,000 [2],[3],[8],[11],[17]   256,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: Astra Bidco Limited, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 412,000 [2],[3],[8],[17]   396,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: Astra Bidco Limited, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 2,493,000 [2],[3],[8],[11],[28]   2,365,000 [5],[6],[10],[12],[29]          
Investment, Identifier [Axis]: Auxi International, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 1,422,000 [2],[3],[8],[17]   1,351,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Auxi International, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 813,000 [2],[3],[8],[28]   782,000 [5],[6],[10],[29]          
Investment, Identifier [Axis]: Avance Clinical Bidco Pty Ltd, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,760,000 [2],[3],[8],[11],[30]   1,967,000 [5],[6],[10],[12],[31]          
Investment, Identifier [Axis]: Azalea Buyer, Inc., Common Stock                
Schedule of Investments [Line Items]                
Fair Value 302,000 [3],[13]   288,000 [6],[14]          
Investment, Identifier [Axis]: Azalea Buyer, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,773,000 [2],[3],[20]   4,785,000 [5],[6],[12],[21]          
Investment, Identifier [Axis]: Azalea Buyer, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [2],[3],[11],[20]   0 [5],[6],[12],[21]          
Investment, Identifier [Axis]: Azalea Buyer, Inc., Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,868,000 [3]   1,805,000 [6]          
Investment, Identifier [Axis]: BKF Buyer, Inc., Common Stock                
Schedule of Investments [Line Items]                
Fair Value 1,065,000 [3],[13]   1,045,000 [6],[14]          
Investment, Identifier [Axis]: BKF Buyer, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 8,008,000 [2],[3],[20]   8,015,000 [5],[6],[21]          
Investment, Identifier [Axis]: BKF Buyer, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value (48,000) [2],[3],[11],[20]   (52,000) [5],[6],[12],[21]          
Investment, Identifier [Axis]: BNI Global, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 9,739,000 [2],[3],[32]   9,302,000 [5],[6],[33]          
Investment, Identifier [Axis]: BPG Holdings IV Corp, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 12,528,000 [1],[2],[3]   12,560,000 [4],[5],[6]          
Investment, Identifier [Axis]: BVI Medical, Inc., Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [5],[6],[18]     9,482,000          
Investment, Identifier [Axis]: Bariacum S.A, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,169,000 [2],[3],[8],[25]   3,107,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Basin Innovation Group, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 13,940,000 [1],[2],[3],[11]   13,949,000 [5],[6],[12],[21]          
Investment, Identifier [Axis]: Basin Innovation Group, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (25,000) [1],[2],[3],[11]   (28,000) [5],[6],[12],[21]          
Investment, Identifier [Axis]: Benify (Bennevis AB), First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [5],[6],[10],[34]     854,000          
Investment, Identifier [Axis]: Beyond Risk Management, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 5,309,000 [1],[2],[3],[11]   5,322,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Bidwax, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 7,546,000 [2],[3],[8],[25]   7,088,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Biolam Group, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,153,000 [2],[3],[8],[11],[25],[35]   1,406,000 [5],[6],[10],[12],[24],[36]          
Investment, Identifier [Axis]: Black Angus Steakhouses, LLC, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[15],[35],[37],[38]   0 [6],[16],[36],[37],[38],[39] $ 4,869,000 [39],[40]        
Investment, Identifier [Axis]: Black Angus Steakhouses, LLC, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 2,639,000 [3],[15],[35],[37],[38]   2,744,000 [5],[6],[16],[21],[36],[37],[38],[39] 7,166,000 [39],[40]        
Investment, Identifier [Axis]: Black Angus Steakhouses, LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[13],[15]   0 [6],[14],[16]          
Investment, Identifier [Axis]: Black Angus Steakhouses, LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 0 [38]   0 [38] 0 [40]        
Investment, Identifier [Axis]: Bounteous, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,079,000 [2],[3],[20]   4,081,000 [4],[5],[6]          
Investment, Identifier [Axis]: Bridger Aerospace Group Holdings, LLC, Municipal Revenue Bond                
Schedule of Investments [Line Items]                
Fair Value 28,002,000   27,859,000          
Investment, Identifier [Axis]: Bridger Aerospace Group Holdings, LLC, Preferred Stock- Series C                
Schedule of Investments [Line Items]                
Fair Value 14,874,000 [3]   14,618,000 [6]          
Investment, Identifier [Axis]: BrightSign LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,645,000 [2],[3],[20]   4,657,000 [5],[6],[21]          
Investment, Identifier [Axis]: BrightSign LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value [3] 1,251,000              
Investment, Identifier [Axis]: BrightSign LLC, LLC units                
Schedule of Investments [Line Items]                
Fair Value [6]     1,174,000          
Investment, Identifier [Axis]: BrightSign LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 1,085,000 [2],[3],[11],[20]   1,085,000 [5],[6],[12],[21]          
Investment, Identifier [Axis]: Brightpay Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [5],[6],[10],[12],[18]     386,000          
Investment, Identifier [Axis]: Brightpay Limited, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[8],[17] 1,810,000              
Investment, Identifier [Axis]: Brightpay Limited, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 407,000 [2],[3],[8],[17]   1,720,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: British Airways 2020-1 Class B Pass Through Trust, First Lien Senior Secured Bond                
Schedule of Investments [Line Items]                
Fair Value 481,000   507,000          
Investment, Identifier [Axis]: British Engineering Services Holdco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 15,097,000 [2],[3],[8],[28]   14,454,000 [5],[6],[10],[29]          
Investment, Identifier [Axis]: Broadstone Group UK LTD, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[8],[11],[27] 3,117,000              
Investment, Identifier [Axis]: Brook & Whittle Holding Corp., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,285,000 [1],[2],[15]   2,461,000 [4],[5],[16]          
Investment, Identifier [Axis]: Brown Machine Group Holdings, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 5,582,000 [1],[2],[3]   5,716,000 [5],[6],[21]          
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation, LP Units                
Schedule of Investments [Line Items]                
Fair Value 450,000 [3],[13]   450,000 [6],[14]          
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation, Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,218,000 [1],[2],[3]   4,364,000 [5],[6],[23]          
Investment, Identifier [Axis]: CAi Software, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 12,498,000 [1],[2],[3]   12,455,000 [4],[5],[6]          
Investment, Identifier [Axis]: CAi Software, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 1,261,000 [1],[2],[3],[11]   1,246,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: CCFF Buyer, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 5,807,000 [2],[3],[11],[22]   5,809,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: CCFF Buyer, LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 238,000 [3]   235,000 [6]          
Investment, Identifier [Axis]: CCFF Buyer, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (13,000) [2],[3],[11],[22]   (15,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: CGI Parent, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 13,831,000 [1],[2],[3]   14,008,000 [4],[5],[6]          
Investment, Identifier [Axis]: CGI Parent, LLC, Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value 1,909,000 [3],[13]   1,710,000 [6],[14]          
Investment, Identifier [Axis]: CGI Parent, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 534,000 [1],[2],[3],[11]   0 [4],[5],[6],[12]          
Investment, Identifier [Axis]: CM Acquisitions Holdings Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [4],[5],[6]     12,140,000          
Investment, Identifier [Axis]: CM Acquisitions Holdings Inc., First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 1,540,000 [1],[2],[3]   1,523,000 [4],[5],[6]          
Investment, Identifier [Axis]: CM Acquisitions Holdings Inc., First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3] 12,167,000              
Investment, Identifier [Axis]: CMT Opco Holding, LLC (Concept Machine), First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,398,000 [1],[2],[3]   3,381,000 [4],[5],[6]          
Investment, Identifier [Axis]: CMT Opco Holding, LLC (Concept Machine), LLC Units                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[13]   0 [6],[14]          
Investment, Identifier [Axis]: CSL DualCom, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,229,000 [2],[3],[8],[41]   2,016,000 [5],[6],[10],[12],[42]          
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC, 2024 LIFO Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,370,000 [1],[2],[3]   4,211,000 [4],[5],[6]          
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 800,000 [3],[13]   695,000 [6],[14]          
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC, First Out Term Loan                
Schedule of Investments [Line Items]                
Fair Value [4],[5],[6]     2,860,000          
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC, First Out Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3] 809,000              
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC, First Out Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3] 2,154,000              
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC, Second Out Term Loan                
Schedule of Investments [Line Items]                
Fair Value 618,000 [1],[2],[3]   597,000 [4],[5],[6]          
Investment, Identifier [Axis]: CW Group Holdings, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,725,000 [1],[2],[3]   2,732,000 [4],[5],[6]          
Investment, Identifier [Axis]: CW Group Holdings, LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 427,000 [3]   371,000 [6]          
Investment, Identifier [Axis]: Caldwell & Gregory LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 19,062,000 [1],[2],[3],[11]   18,833,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Caldwell & Gregory LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (31,000) [1],[2],[3],[11]   (34,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp., Class A Equity                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[8],[13]   0 [6],[10],[14]          
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp., Class C - Warrants                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[8],[13]   0 [6],[10],[14]          
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp., Class X Equity                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[8],[13]   0 [6],[10],[14]          
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp., Common Stock                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[8],[13]   0 [6],[10],[14]          
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 302,000 [2],[3],[8],[35],[43]   360,000 [5],[6],[10],[36],[44]          
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp., Super Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 256,000 [3],[8],[11]   185,000 [6],[10],[12]          
Investment, Identifier [Axis]: Caribou Holding Company, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [4],[5],[6],[10]     4,236,000          
Investment, Identifier [Axis]: Caribou Holding Company, LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value [6],[10],[14]     682,000          
Investment, Identifier [Axis]: Cascade Residential Services LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,769,000 [1],[2],[3],[11]   3,742,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Cascade Residential Services LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 298,000 [1],[2],[3],[11]   312,000 [4],[5],[6]          
Investment, Identifier [Axis]: Catawba River Limited, Structured - Junior Note                
Schedule of Investments [Line Items]                
Fair Value 2,241,000 [3],[8],[13]   2,365,000 [6],[10]          
Investment, Identifier [Axis]: Celebration Bidco, LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 8,353,000 [3],[13]   11,262,000 [6],[14]          
Investment, Identifier [Axis]: Celebration Bidco, LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 8,353,000 [45]   11,262,000 [46] 12,177,000 [46]        
Investment, Identifier [Axis]: Celebration Bidco, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 7,654,000 [1],[3]   6,414,000 [4],[6]          
Investment, Identifier [Axis]: Celebration Bidco, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 7,654,000 [45]   6,414,000 [46] 6,214,000 [46]        
Investment, Identifier [Axis]: Centralis Finco S.a.r.l., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [5],[6],[10],[18]     2,996,000          
Investment, Identifier [Axis]: Centralis Finco S.a.r.l., First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[8],[17] 3,125,000              
Investment, Identifier [Axis]: Centralis Finco S.a.r.l., First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[8],[11],[17] 0              
Investment, Identifier [Axis]: Ceres Pharma NV, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,317,000 [2],[3],[8],[25]   3,167,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 19,983,000 [3],[13],[45]   16,852,000 [6],[14],[45] 12,160,000 [46]        
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC, Subordinated Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 15,800,000 [3],[45]   15,770,000 [6],[45] 15,649,000 [46]        
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC, Subordinated Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 7,285,000 [3],[45]   7,271,000 [6],[45] 6,868,000 [46]        
Investment, Identifier [Axis]: Cobham Slip Rings SAS, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,303,000 [1],[2],[3],[8]   1,303,000 [5],[6],[10],[23]          
Investment, Identifier [Axis]: Coherus Biosciences, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,903,000 [1],[2],[3]   3,903,000 [4],[5],[6]          
Investment, Identifier [Axis]: Coherus Biosciences, Inc., Royalty Rights                
Schedule of Investments [Line Items]                
Fair Value 6,379,000 [3]   5,834,000 [6]          
Investment, Identifier [Axis]: Command Alkon (Project Potter Buyer, LLC), Class B Partnership Units                
Schedule of Investments [Line Items]                
Fair Value 151,000 [3],[13]   175,000 [6],[14]          
Investment, Identifier [Axis]: Compass Precision, LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 257,000 [3],[13]   154,000 [6],[14]          
Investment, Identifier [Axis]: Compass Precision, LLC, Senior Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair Value 644,000 [3]   640,000 [6]          
Investment, Identifier [Axis]: Comply365, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 18,188,000 [1],[2],[3]   18,663,000 [5],[6],[21]          
Investment, Identifier [Axis]: Comply365, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (25,000) [1],[2],[3],[11]   0 [5],[6],[12],[21]          
Investment, Identifier [Axis]: Contabo Finco S.À.R.L, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [5],[6],[10],[18]     4,822,000          
Investment, Identifier [Axis]: Contabo FincoS.À R.L, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[8],[17] 5,030,000              
Investment, Identifier [Axis]: Coyo Uprising GmbH, Class A Units                
Schedule of Investments [Line Items]                
Fair Value 217,000 [3],[8],[13]   206,000 [6],[10],[14]          
Investment, Identifier [Axis]: Coyo Uprising GmbH, Class B Units                
Schedule of Investments [Line Items]                
Fair Value 412,000 [3],[8],[13]   381,000 [6],[10],[14]          
Investment, Identifier [Axis]: Coyo Uprising GmbH, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,804,000 [2],[3],[8],[11],[25]   4,590,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: DAWGS Intermediate Holdings Co., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3] 6,752,000              
Investment, Identifier [Axis]: DAWGS Intermediate Holdings Co., LLC Units                
Schedule of Investments [Line Items]                
Fair Value [3],[13] 347,000              
Investment, Identifier [Axis]: DAWGS Intermediate Holdings Co., Revolver                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3],[11] 64,000              
Investment, Identifier [Axis]: DISA Holdings Corp., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,933,000 [1],[2],[3]   6,950,000 [4],[5],[6]          
Investment, Identifier [Axis]: DISA Holdings Corp., Revolver                
Schedule of Investments [Line Items]                
Fair Value 86,000 [1],[2],[3],[11]   0 [4],[5],[6],[12]          
Investment, Identifier [Axis]: DataServ Integrations, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,871,000 [2],[3],[22]   1,871,000 [5],[6],[23]          
Investment, Identifier [Axis]: DataServ Integrations, LLC, Partnership Units                
Schedule of Investments [Line Items]                
Fair Value [6],[14]     103,000          
Investment, Identifier [Axis]: DataServ Integrations, LLC, Preferred Units                
Schedule of Investments [Line Items]                
Fair Value [3],[13] 117,000              
Investment, Identifier [Axis]: DataServ Integrations, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [2],[3],[11],[22]   0 [5],[6],[12],[23]          
Investment, Identifier [Axis]: David Wood Baking UK Ltd, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 849,000 [2],[3],[8],[28]   818,000 [5],[6],[10],[29]          
Investment, Identifier [Axis]: DecksDirect, LLC, Class A Units                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[13]   0 [6],[14]          
Investment, Identifier [Axis]: DecksDirect, LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[13]   0 [6],[14]          
Investment, Identifier [Axis]: DecksDirect, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,295,000 [1],[2],[3]   1,383,000 [4],[5],[6]          
Investment, Identifier [Axis]: DecksDirect, LLC, Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value [3] 0              
Investment, Identifier [Axis]: DecksDirect, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 191,000 [1],[2],[3],[11]   301,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Discovery Buyer, L.P., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3],[11] 12,261,000              
Investment, Identifier [Axis]: Discovery Buyer, L.P., Revolver                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3],[11] (22,000)              
Investment, Identifier [Axis]: Diversified Packaging Holdings LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 381,000 [3]   333,000 [6],[14]          
Investment, Identifier [Axis]: Diversified Packaging Holdings LLC, Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 792,000 [3]   717,000 [6]          
Investment, Identifier [Axis]: Dragon Bidco, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,701,000 [2],[3],[8],[17]   2,585,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: DreamStart Bidco SAS (d/b/a SmartTrade), First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,297,000 [2],[3],[8],[17]   2,202,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: Dryden 49 Senior Loan Fund, Series 2017-49A, Subordinated Structured Notes                
Schedule of Investments [Line Items]                
Fair Value 46,000 [8],[13],[15]   437,000 [10],[14],[16]          
Investment, Identifier [Axis]: Dune Group, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 97,000 [2],[3],[8],[11],[25]   91,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: Dune Group, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 1,361,000 [1],[2],[3],[8]   193,000 [4],[5],[6],[10]          
Investment, Identifier [Axis]: Dune Group, First Lien Senior Secured Term Loan 3                
Schedule of Investments [Line Items]                
Fair Value [4],[5],[6],[10]     1,164,000          
Investment, Identifier [Axis]: Dunlipharder B.V., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 999,000 [1],[2],[3],[8]   998,000 [4],[5],[6],[10]          
Investment, Identifier [Axis]: Dwyer Instruments, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 14,422,000 [1],[2],[3]   14,433,000 [4],[5],[6]          
Investment, Identifier [Axis]: EB Development, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,834,000 [2],[3],[8],[11],[17]   1,971,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: EFC International, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 317,000 [3],[13]   380,000 [6],[14]          
Investment, Identifier [Axis]: EFC International, Senior Unsecured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 803,000 [3]   797,000 [6]          
Investment, Identifier [Axis]: EMI Porta Holdco LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 11,599,000 [1],[2],[3]   11,696,000 [4],[5],[6]          
Investment, Identifier [Axis]: EMI Porta Holdco LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 353,000 [2],[3],[11],[20]   543,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Echo Global Logistics, Inc., Partnership Equity                
Schedule of Investments [Line Items]                
Fair Value 375,000 [3],[13]   417,000 [6],[14]          
Investment, Identifier [Axis]: Echo Global Logistics, Inc., Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 9,469,000 [2],[3],[20]   9,450,000 [5],[6],[21]          
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value           $ 4,500,000    
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC, Revolver, Funded                
Schedule of Investments [Line Items]                
Fair Value 11,300,000   10,100,000          
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC, Revolver, Unfunded                
Schedule of Investments [Line Items]                
Fair Value         $ 22,700,000 13,600,000    
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC, Second Lien Senior Secured Loan                
Schedule of Investments [Line Items]                
Fair Value           $ 89,800,000    
Investment, Identifier [Axis]: Eclipse Business Capital, LLC units                
Schedule of Investments [Line Items]                
Fair Value 136,855,000 [45]   136,855,000 [45] 145,799,000 [46]        
Investment, Identifier [Axis]: Eclipse Business Capital, LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 136,855,000 [3]   136,855,000 [6]          
Investment, Identifier [Axis]: Eclipse Business Capital, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 11,273,000 [3],[11],[20]   10,091,000 [6],[12],[21]          
Investment, Identifier [Axis]: Eclipse Business Capital, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 11,273,000 [45]   10,091,000 [45] 5,545,000 [46]        
Investment, Identifier [Axis]: Eclipse Business Capital, LLC, Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,545,000 [3]   4,545,000 [6]          
Investment, Identifier [Axis]: Eclipse Business Capital, Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,545,000 [45]   4,545,000 [45] 4,545,000 [46]        
Investment, Identifier [Axis]: Electric Equipment & Engineering Co., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 310,000 [3]   307,000 [6]          
Investment, Identifier [Axis]: Electric Equipment & Engineering Co., LLC Units                
Schedule of Investments [Line Items]                
Fair Value 195,000 [3],[13]   188,000 [6],[14]          
Investment, Identifier [Axis]: Electrical Components International, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 10,395,000 [1],[2],[3],[11]   10,410,000 [5],[6],[12],[23]          
Investment, Identifier [Axis]: Ellkay, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,478,000 [1],[2],[3]   4,348,000 [4],[5],[6]          
Investment, Identifier [Axis]: Entact Environmental Services, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,495,000 [1],[2],[3]   6,624,000 [4],[5],[6]          
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 836,000 [2],[3],[8],[25],[35]   831,000 [5],[6],[10],[24],[36]          
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 437,000 [1],[2],[3],[8],[35]   453,000 [4],[5],[6],[10],[36]          
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL, First Lien Senior Secured Term Loan 3                
Schedule of Investments [Line Items]                
Fair Value 1,158,000 [2],[3],[8],[28],[35]   1,165,000 [5],[6],[10],[29],[36]          
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL, Senior Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[8],[35]   0 [6],[10],[36]          
Investment, Identifier [Axis]: Events Software BidCo Pty Ltd, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,340,000 [2],[3],[8],[11],[30]   1,336,000 [5],[6],[10],[12],[31]          
Investment, Identifier [Axis]: Expert Institute Group Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3],[11] 2,553,000              
Investment, Identifier [Axis]: Expert Institute Group Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3],[11] (14,000)              
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,259,000 [1],[2],[3]   5,955,000 [4],[5],[6]          
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 136,000 [1],[2],[3],[11]   124,000 [4],[5],[6],[12]          
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 [4],[5],[6]     11,950,000          
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 [1],[2],[3] 11,998,000              
Investment, Identifier [Axis]: FSS Buyer LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,728,000 [2],[3],[20]   4,740,000 [5],[6],[21]          
Investment, Identifier [Axis]: FSS Buyer LLC, LP Interest                
Schedule of Investments [Line Items]                
Fair Value 17,000 [3]   17,000 [6]          
Investment, Identifier [Axis]: FSS Buyer LLC, LP Units                
Schedule of Investments [Line Items]                
Fair Value 74,000 [3],[13]   74,000 [6],[14]          
Investment, Identifier [Axis]: Faraday, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,633,000 [2],[3],[8],[17]   1,552,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: Ferrellgas L.P., Opco Preferred Units                
Schedule of Investments [Line Items]                
Fair Value 2,799,000 [3]   2,799,000 [6]          
Investment, Identifier [Axis]: FinThrive Software Intermediate Holdings Inc., Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value 5,944,000 [3]   5,608,000 [6]          
Investment, Identifier [Axis]: Finaxy Holding, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,994,000 [2],[3],[8],[25]   3,872,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Finexvet, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,848,000 [2],[3],[8],[25]   4,613,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: FitzMark Buyer, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,119,000 [2],[3],[20]   4,128,000 [5],[6],[21]          
Investment, Identifier [Axis]: Five Star Holding LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 564,000 [3],[13]   564,000 [6],[14]          
Investment, Identifier [Axis]: Five Star Holding LLC, Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 13,268,000 [1],[2],[3]   13,198,000 [4],[5],[6]          
Investment, Identifier [Axis]: Flexential Issuer, LLC, Structured Secured Note - Class C                
Schedule of Investments [Line Items]                
Fair Value 15,862,000   15,339,000          
Investment, Identifier [Axis]: Flywheel Re Segregated Portfolio 2022-4, Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value 4,497,000 [3],[8],[13]   3,875,000 [6],[10],[14]          
Investment, Identifier [Axis]: Footco 40 Limited, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 226,000 [2],[3],[8],[17]   217,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: Footco 40 Limited, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 1,639,000 [2],[3],[8],[11],[27]   1,588,000 [5],[6],[10],[12],[26]          
Investment, Identifier [Axis]: Forest Buyer, LLC, Class A LLC Units                
Schedule of Investments [Line Items]                
Fair Value 132,000 [3]   130,000 [6],[14]          
Investment, Identifier [Axis]: Forest Buyer, LLC, Class B LLC Units                
Schedule of Investments [Line Items]                
Fair Value 136,000 [3],[13]   124,000 [6],[14]          
Investment, Identifier [Axis]: Forest Buyer, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,107,000 [1],[2],[3]   6,091,000 [4],[5],[6]          
Investment, Identifier [Axis]: Forest Buyer, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [1],[2],[3],[11]   (2,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Fortis Payment Systems, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [4],[5],[6],[12]     8,815,000          
Investment, Identifier [Axis]: Fortis Payment Systems, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value [4],[5],[6],[12]     (9,000)          
Investment, Identifier [Axis]: FragilePak LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,532,000 [1],[2],[3]   4,544,000 [4],[5],[6]          
Investment, Identifier [Axis]: FragilePak LLC, Partnership Units                
Schedule of Investments [Line Items]                
Fair Value 680,000 [3],[13]   767,000 [6],[14]          
Investment, Identifier [Axis]: GB Eagle Buyer, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 9,148,000 [1],[2],[3],[11]   9,129,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: GB Eagle Buyer, Inc., Partnership Units                
Schedule of Investments [Line Items]                
Fair Value 1,419,000 [3]   1,350,000 [6]          
Investment, Identifier [Axis]: GB Eagle Buyer, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 276,000 [1],[2],[3],[11]   (23,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: GCDL LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 314,000 [3],[13]   243,000 [6],[14]          
Investment, Identifier [Axis]: GCDL LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 529,000 [1],[2],[3],[11]   529,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: GCDL LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (2,000) [1],[2],[3],[11]   (2,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: GPNZ II GmbH, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[8],[13]   0 [6],[10],[14]          
Investment, Identifier [Axis]: GPNZ II GmbH, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 294,000 [3],[8]   271,000 [6],[10]          
Investment, Identifier [Axis]: GPNZ II GmbH, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 86,000 [3],[8]   33,000 [5],[6],[10],[12]          
Investment, Identifier [Axis]: GPNZ II GmbH, First Lien Senior Secured Term Loan 3                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[8],[11]   189,000 [5],[6],[10],[33],[36]          
Investment, Identifier [Axis]: GPNZ II GmbH, First Lien Senior Secured Term Loan 4                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[8],[32],[35] 24,000              
Investment, Identifier [Axis]: Global Academic Group Limited, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 2,520,000 [2],[3],[8],[30]   2,284,000 [5],[6],[10],[31]          
Investment, Identifier [Axis]: Global Academic Group Limited, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 4,043,000 [2],[3],[8],[11],[47]   4,000,000 [5],[6],[10],[12],[48]          
Investment, Identifier [Axis]: Gojo Industries, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 12,902,000 [2],[3],[20]   12,883,000 [4],[5],[6]          
Investment, Identifier [Axis]: Graphpad Software, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 9,487,000 [1],[2],[3],[11]   9,499,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Graphpad Software, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [1],[2],[3],[11]   (1,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Greenhill II BV, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,006,000 [2],[3],[8],[17]   936,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: Groupe Guemas, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,964,000 [2],[3],[8],[25]   4,747,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Groupe Product Life, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [5],[6],[10],[12],[18]     871,000          
Investment, Identifier [Axis]: Groupe Product Life, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[8],[17] 802,000              
Investment, Identifier [Axis]: Groupe Product Life, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[8],[11],[17] 166,000              
Investment, Identifier [Axis]: HEKA Invest, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 5,060,000 [2],[3],[8],[11],[17]   4,850,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: HS Advisory Buyer LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3],[11] 1,257,000              
Investment, Identifier [Axis]: HS Advisory Buyer LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3],[11] (9,000)              
Investment, Identifier [Axis]: HSL Compliance, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[8],[11],[27] 3,692,000              
Investment, Identifier [Axis]: HTI Technology & Industries, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 10,237,000 [2],[3],[11],[22]   10,421,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: HTI Technology & Industries, Revolver                
Schedule of Investments [Line Items]                
Fair Value (89,000) [2],[3],[11],[22]   (70,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: HW Holdco, LLC (Hanley Wood LLC), First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 10,831,000 [1],[2],[3]   11,081,000 [4],[5],[6]          
Investment, Identifier [Axis]: Haystack Holdings LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3],[11] 9,764,000              
Investment, Identifier [Axis]: Haystack Holdings LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3],[11] (14,000)              
Investment, Identifier [Axis]: HeartHealth Bidco Pty Ltd, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 601,000 [2],[3],[8],[11],[30]   602,000 [5],[6],[10],[31]          
Investment, Identifier [Axis]: Heartland Veterinary Partners, LLC, Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair Value 13,306,000 [3]   12,865,000 [6]          
Investment, Identifier [Axis]: Heavy Construction Systems Specialists, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 7,202,000 [1],[2],[3]   7,221,000 [4],[5],[6]          
Investment, Identifier [Axis]: Heavy Construction Systems Specialists, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [1],[2],[3],[11]   0 [4],[5],[6],[12]          
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 3,272,000 [2],[3],[8],[32]   3,042,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: HemaSource, Inc., Common Stock                
Schedule of Investments [Line Items]                
Fair Value 128,000 [3],[13]   124,000 [6],[14]          
Investment, Identifier [Axis]: HemaSource, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,861,000 [2],[3],[20]   7,267,000 [5],[6],[21]          
Investment, Identifier [Axis]: HemaSource, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [2],[3],[11],[20]   0 [5],[6],[12],[21]          
Investment, Identifier [Axis]: Herbalife Ltd., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,292,000 [2],[8],[20]   3,294,000 [5],[10],[21]          
Investment, Identifier [Axis]: Home Care Assistance, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,272,000 [2],[3],[22]   3,524,000 [4],[5],[6]          
Investment, Identifier [Axis]: HomeX Services Group LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,494,000 [1],[2],[3],[11]   1,477,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: HomeX Services Group LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [1],[2],[3],[11]   (3,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Honour Lane Logistics Holdings Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,667,000 [2],[3],[8],[22]   6,645,000 [5],[6],[10],[23]          
Investment, Identifier [Axis]: Hydratech Holdings, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 8,971,000 [1],[2],[3],[11]   7,413,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Hydratech Holdings, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 829,000 [1],[2],[3],[11]   265,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Hygie 31 Holding, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,570,000 [2],[3],[8],[25]   1,502,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Hylan Datacom & Electrical LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value [46]     0 2,013,000        
Investment, Identifier [Axis]: Hylan Datacom & Electrical LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [46]     0 3,917,000        
Investment, Identifier [Axis]: Hylan Datacom & Electrical LLC, Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [46]     0 4,519,000        
Investment, Identifier [Axis]: ICREDITWORKS LLC, Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value [3] 10,208,000              
Investment, Identifier [Axis]: ICREDITWORKS LLC, Warrants                
Schedule of Investments [Line Items]                
Fair Value [3],[13] 0              
Investment, Identifier [Axis]: IM Square, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,648,000 [2],[3],[8],[17]   2,533,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: ISTO Technologies II, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,718,000 [1],[2],[3]   6,706,000 [5],[6],[23]          
Investment, Identifier [Axis]: ISTO Technologies II, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [1],[2],[3],[11]   (2,000) [5],[6],[12],[23]          
Investment, Identifier [Axis]: ITI Intermodal, Inc., Common Stock                
Schedule of Investments [Line Items]                
Fair Value 979,000 [3],[13]   915,000 [6],[14]          
Investment, Identifier [Axis]: ITI Intermodal, Inc., First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 799,000 [1],[2],[3]   800,000 [5],[6],[23]          
Investment, Identifier [Axis]: ITI Intermodal, Inc., First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 12,047,000 [1],[2],[3]   12,079,000 [5],[6],[23]          
Investment, Identifier [Axis]: ITI Intermodal, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 226,000 [1],[2],[3],[11]   225,000 [5],[6],[12],[23]          
Investment, Identifier [Axis]: Ice House America, L.L.C., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,493,000 [1],[2],[3],[11]   4,482,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Ice House America, L.L.C., LLC Units                
Schedule of Investments [Line Items]                
Fair Value 281,000 [3],[13]   316,000 [6],[14]          
Investment, Identifier [Axis]: Ice House America, L.L.C., Revolver                
Schedule of Investments [Line Items]                
Fair Value 313,000 [1],[2],[3],[11]   186,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Infoniqa Holdings GmbH, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,839,000 [2],[3],[8],[17]   2,721,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Innovad Group II BV, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 6,658,000 [2],[3],[8],[17]   6,383,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Innovad Group II BV, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 1,036,000 [2],[3],[8],[49]   1,012,000 [5],[6],[10],[50]          
Investment, Identifier [Axis]: Innovative XCessories & Services, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [4],[5],[16]     2,746,000          
Investment, Identifier [Axis]: Interstellar Group B.V., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,603,000 [2],[3],[8],[11],[17]   1,509,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: InvoCare Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,980,000 [2],[3],[8],[11],[30]   1,963,000 [5],[6],[10],[12],[31]          
Investment, Identifier [Axis]: Isagenix International, LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[13],[15]   0 [6],[14],[16]          
Investment, Identifier [Axis]: Isagenix International, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 181,000 [1],[2],[3],[15]   160,000 [4],[5],[6],[16]          
Investment, Identifier [Axis]: Isolstar Holding NV (IPCOM), First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 5,359,000 [2],[3],[8],[17]   5,075,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: Ivanti Software, Inc., Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,850,000 [1],[2],[15]   3,285,000 [4],[5],[16]          
Investment, Identifier [Axis]: JF Acquisition, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,730,000 [1],[2],[3]   3,736,000 [4],[5],[6]          
Investment, Identifier [Axis]: Jade Bidco Limited (Jane's), First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 1,162,000 [2],[3],[8],[25]   1,112,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Jade Bidco Limited (Jane's), First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 6,526,000 [2],[3],[8],[22]   6,579,000 [5],[6],[10],[23]          
Investment, Identifier [Axis]: JetBlue 2019-1 Class B Pass Through Trust, Structured Secured Note - Class B                
Schedule of Investments [Line Items]                
Fair Value 2,489,000   2,520,000          
Investment, Identifier [Axis]: Jocassee Partners LLC                
Schedule of Investments [Line Items]                
Total contributed capital 35,000,000   35,000,000          
Investment, Identifier [Axis]: Jocassee Partners LLC, Member Interest                
Schedule of Investments [Line Items]                
Fair Value [10],[12],[51]     40,761,000          
Investment, Identifier [Axis]: Jocassee Partners LLC, Member Interest                
Schedule of Investments [Line Items]                
Fair Value 39,825,000 [8],[52]   40,761,000 41,053,000        
Investment, Identifier [Axis]: Jon Bidco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,760,000 [2],[3],[8],[11],[47]   3,720,000 [5],[6],[10],[12],[48]          
Investment, Identifier [Axis]: Jones Fish Hatcheries & Distributors LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,481,000 [2],[3],[22]   3,481,000 [4],[5],[6]          
Investment, Identifier [Axis]: Jones Fish Hatcheries & Distributors LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 421,000 [3]   372,000 [6]          
Investment, Identifier [Axis]: Jones Fish Hatcheries & Distributors LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 251,000 [2],[3],[11],[22]   0 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Keystone Bidco B.V., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 847,000 [2],[3],[8],[11],[25]   677,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: Keystone Bidco B.V., Revolver                
Schedule of Investments [Line Items]                
Fair Value 19,000 [2],[3],[8],[11],[25]   18,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: Kid Distro Holdings, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 13,122,000 [1],[2],[3]   13,156,000 [4],[5],[6]          
Investment, Identifier [Axis]: Kid Distro Holdings, LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 784,000 [3],[13]   772,000 [6],[14]          
Investment, Identifier [Axis]: Lambir Bidco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,013,000 [2],[3],[8],[11],[25]   1,952,000 [5],[6],[10],[12],[24]          
Investment, Identifier [Axis]: Lambir Bidco Limited, Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,765,000 [3],[8]   1,721,000 [6],[10]          
Investment, Identifier [Axis]: Lattice Group Holdings Bidco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 734,000 [2],[3],[8],[11],[22]   687,000 [5],[6],[10],[12],[23]          
Investment, Identifier [Axis]: Lattice Group Holdings Bidco Limited, Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [2],[3],[8],[11],[22]   (1,000) [5],[6],[10],[12],[23]          
Investment, Identifier [Axis]: LeadsOnline, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 10,033,000 [1],[2],[3]   10,029,000 [4],[5],[6]          
Investment, Identifier [Axis]: LeadsOnline, LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 210,000 [3]   180,000 [6]          
Investment, Identifier [Axis]: LeadsOnline, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (3,000) [1],[2],[3],[11]   (10,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Learfield Communications, LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 4,195,000 [13]   4,085,000 [6],[14]          
Investment, Identifier [Axis]: Learfield Communications, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 5,460,000 [2],[20]   5,520,000 [5],[21]          
Investment, Identifier [Axis]: Legal Solutions Holdings, Senior Subordinated Loan                
Schedule of Investments [Line Items]                
Fair Value [6],[36],[53]     0          
Investment, Identifier [Axis]: Lifestyle Intermediate II, LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value [3],[13] 0              
Investment, Identifier [Axis]: Lifestyle Intermediate II, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,796,000 [1],[2],[3],[15]   2,812,000 [4],[5],[6],[16]          
Investment, Identifier [Axis]: Long Term Care Group, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 8,169,000 [1],[2],[3]   7,839,000 [4],[5],[6]          
Investment, Identifier [Axis]: M-Personal Protection Management GMBH (f.k.a INOS 19-090 GmbH), First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [5],[6],[10],[18]     10,829,000          
Investment, Identifier [Axis]: M-Personal Protection Management GMBH, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[8],[17] 11,436,000              
Investment, Identifier [Axis]: MB Purchaser, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,591,000 [1],[2],[3],[11]   2,591,000 [5],[6],[12],[21]          
Investment, Identifier [Axis]: MB Purchaser, LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 78,000 [3],[13]   82,000 [6],[14]          
Investment, Identifier [Axis]: MB Purchaser, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (2,000) [1],[2],[3],[11]   (2,000) [5],[6],[12],[21]          
Investment, Identifier [Axis]: MC Group Ventures Corporation, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 4,926,000 [1],[2],[3],[11]   4,899,000 [5],[6],[12],[21]          
Investment, Identifier [Axis]: MC Group Ventures Corporation, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 4,043,000 [1],[2],[3],[11]   4,036,000 [5],[6],[12],[23]          
Investment, Identifier [Axis]: MC Group Ventures Corporation, Partnership Units                
Schedule of Investments [Line Items]                
Fair Value 681,000 [3],[13]   681,000 [6],[14]          
Investment, Identifier [Axis]: MI OpCo Holdings, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [5],[21]     6,320,000          
Investment, Identifier [Axis]: MNS Buyer, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 660,000 [2],[3],[20]   662,000 [4],[5],[6]          
Investment, Identifier [Axis]: MNS Buyer, Inc., Partnership Units                
Schedule of Investments [Line Items]                
Fair Value 108,000 [3],[13]   106,000 [6],[14]          
Investment, Identifier [Axis]: MSI Express Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3],[11] 5,470,000              
Investment, Identifier [Axis]: MSI Express Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3],[11] 624,000              
Investment, Identifier [Axis]: MVC Automotive Group GmbH, Bridge Loan                
Schedule of Investments [Line Items]                
Fair Value [40]     0 9,762,000        
Investment, Identifier [Axis]: MVC Automotive Group GmbH, Common Equity Interest                
Schedule of Investments [Line Items]                
Fair Value [6],[10],[14],[53]     13,741,000          
Investment, Identifier [Axis]: MVC Automotive Group GmbH, Common Equity Interest                
Schedule of Investments [Line Items]                
Fair Value 13,944,000 [38]   13,741,000 [38] 15,430,000 [40]        
Investment, Identifier [Axis]: MVC Automotive Group Gmbh, Common Equity Interest                
Schedule of Investments [Line Items]                
Fair Value [3],[8],[13],[54] 13,944,000              
Investment, Identifier [Axis]: MVC Private Equity Fund LP, General Partnership Interest                
Schedule of Investments [Line Items]                
Fair Value 0   0 [10],[14],[53] 24,000        
Investment, Identifier [Axis]: MVC Private Equity Fund LP, Limited Partnership Interest                
Schedule of Investments [Line Items]                
Fair Value 0   11,000 [10],[14],[53] 981,000        
Investment, Identifier [Axis]: Magnetite XIX, Limited, Subordinated Notes                
Schedule of Investments [Line Items]                
Fair Value 5,238,000 [1],[2],[8]   10,500,000 [4],[6],[10],[16]          
Investment, Identifier [Axis]: Marmoutier Holding B.V., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value (24,000) [2],[3],[8],[11],[25],[35]   146,000 [5],[6],[10],[12],[24],[36]          
Investment, Identifier [Axis]: Marmoutier Holding B.V., Revolver                
Schedule of Investments [Line Items]                
Fair Value (13,000) [2],[3],[8],[11],[25],[35]   (53,000) [5],[6],[10],[12],[24],[36]          
Investment, Identifier [Axis]: Marmoutier Holding B.V., Super Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 193,000 [3],[8],[35]   185,000 [5],[6],[10],[36]          
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee), First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 1,749,000 [1],[2],[3]   1,747,000 [4],[5],[6]          
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee), First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 3,607,000 [2],[3],[41]   3,775,000 [5],[6],[42]          
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee), Revolver 1                
Schedule of Investments [Line Items]                
Fair Value 33,000 [1],[2],[3],[11]   (9,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee), Revolver 2                
Schedule of Investments [Line Items]                
Fair Value (10,000) [2],[3],[11],[41]   (10,000) [5],[6],[12],[42]          
Investment, Identifier [Axis]: Median B.V., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 9,305,000 [2],[8],[27]   8,966,000 [5],[10],[29]          
Investment, Identifier [Axis]: Medical Solutions Parent Holdings, Inc., Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,211,000 [1],[2]   2,211,000 [4],[5]          
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc., Common Stock                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[13]   0 [6],[14]          
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,901,000 [1],[2],[3]   3,648,000 [4],[5],[6]          
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc., Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value 92,000 [3],[13]   46,000 [6],[14]          
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 150,000 [1],[2],[3],[11]   108,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Mercell Holding AS, Class A Units                
Schedule of Investments [Line Items]                
Fair Value 138,000 [3],[8],[13]   125,000 [6],[10],[14]          
Investment, Identifier [Axis]: Mercell Holding AS, Class B Units                
Schedule of Investments [Line Items]                
Fair Value 26,000 [3],[8],[13]   21,000 [6],[10],[14]          
Investment, Identifier [Axis]: Mercell Holding AS, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,972,000 [2],[3],[8],[11],[55]   2,750,000 [5],[6],[10],[12],[56]          
Investment, Identifier [Axis]: Modern Star Holdings Bidco Pty Limited., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,933,000 [2],[3],[8],[11],[57]   7,008,000 [5],[6],[10],[12],[58]          
Investment, Identifier [Axis]: Momentum Textiles, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[20] 7,255,000              
Investment, Identifier [Axis]: Momentum Textiles, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[11],[20] (9,000)              
Investment, Identifier [Axis]: Moonlight Bidco Limited, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 198,000 [3],[8],[13]   182,000 [6],[10],[14]          
Investment, Identifier [Axis]: Moonlight Bidco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,917,000 [2],[3],[8],[11],[27]   1,841,000 [5],[6],[10],[12],[26]          
Investment, Identifier [Axis]: Murphy Midco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,638,000 [2],[3],[8],[28]   1,641,000 [5],[6],[10],[29]          
Investment, Identifier [Axis]: Music Reports, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,604,000 [1],[2],[3]   6,618,000 [4],[5],[6]          
Investment, Identifier [Axis]: NAW Buyer LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 11,820,000 [1],[2],[3],[11]   11,850,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: NAW Buyer LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 543,000 [3]   524,000 [6]          
Investment, Identifier [Axis]: NAW Buyer LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [1],[2],[3],[11]   0 [4],[5],[6],[12]          
Investment, Identifier [Axis]: NF Holdco, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,267,000 [1],[2],[3]   6,283,000 [4],[5],[6]          
Investment, Identifier [Axis]: NF Holdco, LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 448,000 [3],[13]   563,000 [6],[14]          
Investment, Identifier [Axis]: NF Holdco, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 276,000 [1],[2],[3],[11]   276,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: NPM Investments 28 B.V., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,967,000 [2],[3],[8],[11],[17]   1,869,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: Napa Bidco Pty Ltd, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 12,540,000 [2],[3],[8],[30]   12,459,000 [5],[6],[10],[31]          
Investment, Identifier [Axis]: Narda Acquisitionco., Inc., Class A Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value 589,000 [3],[13]   578,000 [6],[14]          
Investment, Identifier [Axis]: Narda Acquisitionco., Inc., Class B Common Stock                
Schedule of Investments [Line Items]                
Fair Value 677,000 [3],[13]   743,000 [6],[14]          
Investment, Identifier [Axis]: Narda Acquisitionco., Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 5,061,000 [2],[3],[20]   5,074,000 [5],[6],[21]          
Investment, Identifier [Axis]: Narda Acquisitionco., Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [2],[3],[11],[20]   0 [5],[6],[12],[21]          
Investment, Identifier [Axis]: Navia Benefit Solutions, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 5,557,000 [2],[3],[20]   5,572,000 [5],[6],[21]          
Investment, Identifier [Axis]: NeoxCo, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,583,000 [2],[3],[8],[25]   2,456,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Next Holdco, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 22,077,000 [1],[2],[3],[11]   7,320,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Next Holdco, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (7,000) [1],[2],[3],[11]   0 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Northstar Recycling, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 17,136,000 [1],[2],[3],[11]   16,910,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Northstar Recycling, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [1],[2],[3],[11]   (44,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: OA Buyer, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [5],[6],[21]     8,268,000          
Investment, Identifier [Axis]: OA Buyer, Inc., First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[20] 5,461,000              
Investment, Identifier [Axis]: OA Buyer, Inc., First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[20] 2,819,000              
Investment, Identifier [Axis]: OA Buyer, Inc., Partnership Units                
Schedule of Investments [Line Items]                
Fair Value 827,000 [3],[13]   783,000 [6]          
Investment, Identifier [Axis]: OA Buyer, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [2],[3],[11],[20]   (5,000) [5],[6],[12],[21]          
Investment, Identifier [Axis]: OAC Holdings I Corp, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,312,000 [1],[2],[3]   3,539,000 [5],[6],[21]          
Investment, Identifier [Axis]: OAC Holdings I Corp, Revolver                
Schedule of Investments [Line Items]                
Fair Value 489,000 [1],[2],[3],[11]   0 [5],[6],[12],[21]          
Investment, Identifier [Axis]: OG III B.V., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [5],[6],[10],[18]     3,241,000          
Investment, Identifier [Axis]: OG III B.V., First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[8],[17] 2,098,000              
Investment, Identifier [Axis]: OG III B.V., First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[8],[17] 1,291,000              
Investment, Identifier [Axis]: ORTEC INTERNATIONAL NEWCO B.V., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 973,000 [2],[3],[8],[17]   931,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: OSP Hamilton Purchaser, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 13,896,000 [1],[2],[3],[11]   13,901,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: OSP Hamilton Purchaser, LLC, LP Units                
Schedule of Investments [Line Items]                
Fair Value 195,000 [3]   151,000 [6]          
Investment, Identifier [Axis]: OSP Hamilton Purchaser, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 432,000 [1],[2],[3],[11]   430,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Ocelot Holdco LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 903,000 [3],[13]   742,000 [6],[14]          
Investment, Identifier [Axis]: Ocelot Holdco LLC, Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value 2,963,000 [3]   2,873,000 [6]          
Investment, Identifier [Axis]: Ocelot Holdco LLC, Super Senior Takeback Loan                
Schedule of Investments [Line Items]                
Fair Value 549,000 [2],[3]   549,000 [5],[6]          
Investment, Identifier [Axis]: Ocelot Holdco LLC, Takeback Term Loan                
Schedule of Investments [Line Items]                
Fair Value [5],[6]     2,933,000          
Investment, Identifier [Axis]: Ocelot Holdco LLC, Takeback Term loan                
Schedule of Investments [Line Items]                
Fair Value [2],[3] 2,933,000              
Investment, Identifier [Axis]: Ocular Therapeutix, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,849,000 [2],[3],[8],[20]   4,849,000 [5],[6],[10],[21]          
Investment, Identifier [Axis]: Offen Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,678,000 [3],[15],[20]   3,681,000 [6],[16],[21]          
Investment, Identifier [Axis]: Oracle Vision Bidco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,898,000 [2],[3],[8],[28]   2,802,000 [5],[6],[10],[29]          
Investment, Identifier [Axis]: Origin Bidco Limited, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 314,000 [2],[3],[8],[17]   301,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: Origin Bidco Limited, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 524,000 [1],[2],[3],[8]   522,000 [4],[5],[6],[10]          
Investment, Identifier [Axis]: PDQ.Com Corporation, Class A-2 Partnership Units                
Schedule of Investments [Line Items]                
Fair Value 26,000 [3],[13]   42,000 [6],[14]          
Investment, Identifier [Axis]: PDQ.Com Corporation, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 14,752,000 [1],[2],[3],[11]   14,514,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: PSP Intermediate 4, LLC, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 883,000 [2],[3],[8],[11],[17]   844,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: PSP Intermediate 4, LLC, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 1,411,000 [1],[2],[3],[8]   1,408,000 [4],[5],[6],[10]          
Investment, Identifier [Axis]: Panoche Energy Center LLC, First Lien Senior Secured Bond                
Schedule of Investments [Line Items]                
Fair Value 3,351,000 [3]   3,695,000 [6]          
Investment, Identifier [Axis]: Pare SAS (SAS Maurice MARLE), First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 2,667,000 [2],[3],[8],[17]   2,688,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Pare SAS (SAS Maurice MARLE), First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 1,500,000 [1],[2],[3],[8]   1,500,000 [4],[5],[6],[10]          
Investment, Identifier [Axis]: Parkview Dental Holdings LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [5],[6],[12],[21]     609,000          
Investment, Identifier [Axis]: Parkview Dental Holdings LLC, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[11],[20] 25,000              
Investment, Identifier [Axis]: Parkview Dental Holdings LLC, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[20] 588,000              
Investment, Identifier [Axis]: Parkview Dental Holdings LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 213,000 [3],[13]   263,000 [6],[14]          
Investment, Identifier [Axis]: Parkview Dental Holdings LLC, Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value [3] 37,000              
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 1,945,000 [2],[3],[8],[17]   2,045,000 [5],[6],[10],[18]          
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 2,397,000 [1],[2],[3],[8]   2,628,000 [4],[5],[6],[10]          
Investment, Identifier [Axis]: Perimeter Master Note Business Trust, Structured Secured Note - Class A                
Schedule of Investments [Line Items]                
Fair Value 179,000 [3],[8]   177,000 [6],[10]          
Investment, Identifier [Axis]: Perimeter Master Note Business Trust, Structured Secured Note - Class B                
Schedule of Investments [Line Items]                
Fair Value 180,000 [3],[8]   178,000 [6],[10]          
Investment, Identifier [Axis]: Perimeter Master Note Business Trust, Structured Secured Note - Class C                
Schedule of Investments [Line Items]                
Fair Value 180,000 [3],[8]   180,000 [6],[10]          
Investment, Identifier [Axis]: Perimeter Master Note Business Trust, Structured Secured Note - Class D                
Schedule of Investments [Line Items]                
Fair Value 181,000 [3],[8]   178,000 [6],[10]          
Investment, Identifier [Axis]: Perimeter Master Note Business Trust, Structured Secured Note - Class E                
Schedule of Investments [Line Items]                
Fair Value 9,263,000 [3],[8]   8,904,000 [6],[10]          
Investment, Identifier [Axis]: Permaconn BidCo Pty Ltd, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,553,000 [2],[3],[8],[30]   2,537,000 [5],[6],[10],[31]          
Investment, Identifier [Axis]: Polara Enterprises, L.L.C., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 954,000 [2],[3],[20]   957,000 [4],[5],[6]          
Investment, Identifier [Axis]: Polara Enterprises, L.L.C., Partnership Units                
Schedule of Investments [Line Items]                
Fair Value 1,492,000 [3]   1,229,000 [6]          
Investment, Identifier [Axis]: Polara Enterprises, L.L.C., Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [2],[3],[11],[20]   0 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Policy Services Company, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 51,038,000 [1],[2],[3]   52,940,000 [4],[5],[6]          
Investment, Identifier [Axis]: Policy Services Company, LLC, Warrants - Class A                
Schedule of Investments [Line Items]                
Fair Value 1,202,000 [3],[13]   1,262,000 [6],[14]          
Investment, Identifier [Axis]: Policy Services Company, LLC, Warrants - Class B                
Schedule of Investments [Line Items]                
Fair Value 406,000 [3],[13]   426,000 [6],[14]          
Investment, Identifier [Axis]: Policy Services Company, LLC, Warrants - Class CC                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[13]   0 [6],[14]          
Investment, Identifier [Axis]: Policy Services Company, LLC, Warrants - Class D                
Schedule of Investments [Line Items]                
Fair Value 116,000 [3],[13]   122,000 [6],[14]          
Investment, Identifier [Axis]: Polymer Solutions Group Holdings, LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[13]   0 [6],[14]          
Investment, Identifier [Axis]: Polymer Solutions Group Holdings, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 460,000 [2],[3],[15],[20],[35]   554,000 [5],[6],[16],[21],[36]          
Investment, Identifier [Axis]: PowerGEM Buyer, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 8,010,000 [1],[2],[3],[11]   6,710,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: PowerGEM Buyer, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value (22,000) [1],[2],[3],[11]   (26,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Premium Franchise Brands, LLC, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 7,387,000 [1],[2],[3]   7,377,000 [4],[5],[6]          
Investment, Identifier [Axis]: Premium Franchise Brands, LLC, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 2,725,000 [1],[2],[3]   2,694,000 [4],[5],[6]          
Investment, Identifier [Axis]: Premium Invest, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 9,041,000 [2],[3],[8],[11],[17]   8,750,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: Preqin MC Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [5],[6],[10],[23]     2,789,000          
Investment, Identifier [Axis]: Pro-Vision Solutions Holdings, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 7,671,000 [2],[3],[20]   7,662,000 [4],[5],[6]          
Investment, Identifier [Axis]: Pro-Vision Solutions Holdings, LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 233,000 [3],[13]   249,000 [6],[14]          
Investment, Identifier [Axis]: Pro-Vision Solutions Holdings, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 327,000 [2],[3],[11],[20]   (28,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Process Equipment, Inc. (ProcessBarron), First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 5,178,000 [2],[3],[22]   5,338,000 [5],[6],[23]          
Investment, Identifier [Axis]: Process Insights Acquisition, Inc., Common Stock                
Schedule of Investments [Line Items]                
Fair Value 198,000 [3],[13]   237,000 [6],[14]          
Investment, Identifier [Axis]: Process Insights Acquisition, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 5,595,000 [1],[2],[3],[11]   5,134,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Process Insights Acquisition, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 509,000 [1],[2],[3],[11]   889,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: ProfitOptics, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,608,000 [2],[3],[20]   1,613,000 [5],[6],[21]          
Investment, Identifier [Axis]: ProfitOptics, LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 317,000 [3],[13]   198,000 [6],[14]          
Investment, Identifier [Axis]: ProfitOptics, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 242,000 [2],[3],[11],[20]   242,000 [5],[6],[12],[21]          
Investment, Identifier [Axis]: ProfitOptics, LLC, Senior Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair Value 76,000 [3]   76,000 [6]          
Investment, Identifier [Axis]: Proppants Holding, LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[15]   0 [6],[16]          
Investment, Identifier [Axis]: Protego Bidco B.V., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,722,000 [2],[3],[8],[25]   1,646,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Protego Bidco B.V., Revolver                
Schedule of Investments [Line Items]                
Fair Value 2,074,000 [2],[3],[8],[25]   1,974,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: QPE7 SPV1 BidCo Pty Ltd, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,705,000 [2],[3],[8],[57]   1,694,000 [5],[6],[10],[58]          
Investment, Identifier [Axis]: Qualified Industries, LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 73,000 [3],[13]   61,000 [6],[14]          
Investment, Identifier [Axis]: Qualified Industries, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,571,000 [2],[3],[22]   2,567,000 [5],[6],[23]          
Investment, Identifier [Axis]: Qualified Industries, LLC, Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value 180,000 [3],[13]   175,000 [6],[14]          
Investment, Identifier [Axis]: Qualified Industries, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (4,000) [2],[3],[11],[22]   (5,000) [5],[6],[12],[23]          
Investment, Identifier [Axis]: Questel Unite, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [4],[5],[6],[10]     7,059,000          
Investment, Identifier [Axis]: R1 Holdings, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,047,000 [2],[3],[22]   6,135,000 [5],[6],[21]          
Investment, Identifier [Axis]: R1 Holdings, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 801,000 [2],[3],[11],[22]   472,000 [5],[6],[12],[21]          
Investment, Identifier [Axis]: RA Outdoors, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 13,005,000 [2],[3],[15],[22]   12,732,000 [4],[5],[6],[16]          
Investment, Identifier [Axis]: RA Outdoors, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 1,244,000 [2],[3],[15],[22]   1,217,000 [4],[5],[6],[16]          
Investment, Identifier [Axis]: REP SEKO MERGER SUB LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 3,673,000 [3],[13]   4,595,000 [6],[14]          
Investment, Identifier [Axis]: REP SEKO MERGER SUB LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,013,000 [1],[2],[3]   1,015,000 [4],[5],[6]          
Investment, Identifier [Axis]: REP SEKO MERGER SUB LLC, First Out Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,571,000 [1],[2],[3]   2,577,000 [4],[5],[6]          
Investment, Identifier [Axis]: ROI Solutions LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 17,991,000 [2],[3],[11],[22]   17,973,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: ROI Solutions LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (46,000) [2],[3],[11],[22]   (55,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: RPX Corporation, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 21,610,000 [2],[3],[20]   21,638,000 [4],[5],[6]          
Investment, Identifier [Axis]: RPX Corporation, Revolver                
Schedule of Investments [Line Items]                
Fair Value (35,000) [2],[3],[11],[20]   (39,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Class A Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[13],[15]   0 [6],[14],[16]          
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Class B Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[13],[15]   0 [6],[14],[16]          
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Class C Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value 52,000 [3],[13],[15]   57,000 [6],[14],[16]          
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[13],[15]   0 [6],[14],[16]          
Investment, Identifier [Axis]: Randys Holdings, Inc., Common Stock                
Schedule of Investments [Line Items]                
Fair Value [3],[13] 671,000              
Investment, Identifier [Axis]: Randys Holdings, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 11,850,000 [1],[2],[3],[11]   10,873,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Randys Holdings, Inc., Partnership Units                
Schedule of Investments [Line Items]                
Fair Value [6],[14]     622,000          
Investment, Identifier [Axis]: Randys Holdings, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 809,000 [1],[2],[3],[11]   613,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Rapid Buyer LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 5,332,000 [1],[2],[3],[11]   5,313,000 [5],[6],[12],[23]          
Investment, Identifier [Axis]: Rapid Buyer LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 536,000 [3],[13]   533,000 [6],[14]          
Investment, Identifier [Axis]: Rapid Buyer LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (19,000) [1],[2],[3],[11]   (22,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Recovery Point Systems, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 11,265,000 [1],[2],[3]   11,294,000 [4],[5],[6]          
Investment, Identifier [Axis]: Recovery Point Systems, Inc., Partnership Equity                
Schedule of Investments [Line Items]                
Fair Value 82,000 [3],[13]   81,000 [6],[14]          
Investment, Identifier [Axis]: Renovation Parent Holdings, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,363,000 [1],[2],[3]   4,308,000 [4],[5],[6]          
Investment, Identifier [Axis]: Renovation Parent Holdings, LLC, Partnership Equity                
Schedule of Investments [Line Items]                
Fair Value 95,000 [3],[13]   85,000 [6],[14]          
Investment, Identifier [Axis]: Resolute Investment Managers, Inc., Common Stock                
Schedule of Investments [Line Items]                
Fair Value 0 [3],[13],[15]   98,000 [6],[14],[16]          
Investment, Identifier [Axis]: Rhondda Financing No. 1 DAC, Structured - Junior Note                
Schedule of Investments [Line Items]                
Fair Value [6],[10],[12]     26,044,000          
Investment, Identifier [Axis]: Riedel Beheer B.V., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,942,000 [2],[3],[8],[17]   1,963,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: Rocade Holdings LLC, Common LP Units                
Schedule of Investments [Line Items]                
Fair Value 490,000 [3],[13],[45]   243,000 [6],[14],[46] 844,000 [46]        
Investment, Identifier [Axis]: Rocade Holdings LLC, Preferred LP Units                
Schedule of Investments [Line Items]                
Fair Value 85,101,000 [1],[3],[11],[45]   83,000,000 [4],[6],[12],[45] 73,113,000 [46]        
Investment, Identifier [Axis]: Rock Labor LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,436,000 [2],[3],[20]   6,426,000 [4],[5],[6]          
Investment, Identifier [Axis]: Rock Labor LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 1,202,000 [3]   1,127,000 [6]          
Investment, Identifier [Axis]: Rock Labor LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (14,000) [1],[2],[3],[11]   (19,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Royal Buyer, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 8,084,000 [1],[2],[3]   8,098,000 [4],[5],[6]          
Investment, Identifier [Axis]: Royal Buyer, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [1],[2],[3],[11]   (2,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Ruffalo Noel Levitz, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,405,000 [1],[2],[3],[35]   6,792,000 [4],[5],[6]          
Investment, Identifier [Axis]: Russell Investments US Institutional Holdco, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 512,000 [1],[2],[3]   508,000 [4],[5],[6]          
Investment, Identifier [Axis]: SBP Holdings LP, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 8,640,000 [2],[3],[11],[20]   8,648,000 [5],[6],[12],[21]          
Investment, Identifier [Axis]: SBP Holdings LP, Revolver                
Schedule of Investments [Line Items]                
Fair Value (11,000) [2],[3],[11],[20]   (13,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: SISU ACQUISITIONCO., INC., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,657,000 [1],[2],[3]   6,591,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: SPATCO Energy Solutions, LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 274,000 [3],[13]   280,000 [6],[14]          
Investment, Identifier [Axis]: SPATCO Energy Solutions, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,973,000 [1],[2],[3],[11]   6,990,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: SPATCO Energy Solutions, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (18,000) [1],[2],[3],[11]   (18,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: SSCP Pegasus Midco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,286,000 [2],[3],[8],[11],[27]   4,368,000 [5],[6],[10],[12],[26]          
Investment, Identifier [Axis]: SSCP Spring Bidco 3 Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 972,000 [2],[3],[8],[28]   941,000 [5],[6],[10],[29]          
Investment, Identifier [Axis]: SVI International LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 588,000 [1],[2],[3],[11]   583,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: SVI International LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 283,000 [3]   277,000 [6]          
Investment, Identifier [Axis]: SVI International LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [1],[2],[3],[11]   (1,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Saab Purchaser, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 17,622,000 [1],[2],[3],[11]   17,592,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Saab Purchaser, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value (21,000) [1],[2],[3],[11]   (24,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Safety Products Holdings, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 14,775,000 [1],[2],[3]   14,812,000 [4],[5],[6]          
Investment, Identifier [Axis]: Safety Products Holdings, LLC, Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value 527,000 [3],[13]   537,000 [6],[14]          
Investment, Identifier [Axis]: Sanoptis S.A.R.L., First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 3,866,000 [2],[3],[8],[11],[25]   3,692,000 [5],[6],[10],[12],[24]          
Investment, Identifier [Axis]: Sanoptis S.A.R.L., First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 2,910,000 [2],[3],[8],[59]   2,788,000 [5],[6],[10],[50]          
Investment, Identifier [Axis]: Sanoptis S.A.R.L., First Lien Senior Secured Term Loan 3                
Schedule of Investments [Line Items]                
Fair Value [5],[6],[10],[50]     46,000          
Investment, Identifier [Axis]: Sansidor BV, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 691,000 [2],[3],[8],[11],[17]   534,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: Scaled Agile, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,541,000 [1],[2],[3]   1,605,000 [4],[5],[6]          
Investment, Identifier [Axis]: Scaled Agile, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 291,000 [1],[2],[3]   302,000 [4],[5],[6]          
Investment, Identifier [Axis]: Scout Bidco B.V., First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 3,447,000 [2],[3],[8],[17]   3,297,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: Scout Bidco B.V., First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 442,000 [1],[2],[3],[8]   442,000 [4],[5],[6],[10]          
Investment, Identifier [Axis]: Scout Bidco B.V., Revolver                
Schedule of Investments [Line Items]                
Fair Value (12,000) [2],[3],[8],[11],[17]   (14,000) [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: Security Holdings B.V, Bridge Loan                
Schedule of Investments [Line Items]                
Fair Value 6,655,000 [38]   6,655,000 [40] 6,328,000 [40]        
Investment, Identifier [Axis]: Security Holdings B.V, Common Stock Series A                
Schedule of Investments [Line Items]                
Fair Value 449,000 [38]   399,000 [40] 311,000 [40]        
Investment, Identifier [Axis]: Security Holdings B.V, Common Stock Series B                
Schedule of Investments [Line Items]                
Fair Value 41,995,000 [38]   37,296,000 [40] 29,080,000 [40]        
Investment, Identifier [Axis]: Security Holdings B.V, Revolver                
Schedule of Investments [Line Items]                
Fair Value 5,725,000 [38]   5,333,000 [40] 3,866,000 [40]        
Investment, Identifier [Axis]: Security Holdings B.V, Senior Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair Value 11,345,000 [38]   11,191,000 [40] 10,867,000 [40]        
Investment, Identifier [Axis]: Security Holdings B.V, Senior Unsecured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,500,000 [38]   2,293,000 [40] 2,236,000 [40]        
Investment, Identifier [Axis]: Security Holdings B.V., Bridge Loan                
Schedule of Investments [Line Items]                
Fair Value 6,655,000 [3],[8],[54]   6,655,000 [6],[10],[53]          
Investment, Identifier [Axis]: Security Holdings B.V., Common Stock Series A                
Schedule of Investments [Line Items]                
Fair Value 449,000 [3],[8],[13],[54]   399,000 [6],[10],[14],[53]          
Investment, Identifier [Axis]: Security Holdings B.V., Common Stock Series B                
Schedule of Investments [Line Items]                
Fair Value 41,995,000 [3],[8],[13],[54]   37,296,000 [6],[10],[14],[53]          
Investment, Identifier [Axis]: Security Holdings B.V., Revolver                
Schedule of Investments [Line Items]                
Fair Value 5,725,000 [3],[8],[11],[54]   5,333,000 [6],[10],[12],[53]          
Investment, Identifier [Axis]: Security Holdings B.V., Senior Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair Value 11,345,000 [3],[8],[54]   11,191,000 [6],[10],[53]          
Investment, Identifier [Axis]: Security Holdings B.V., Senior Unsecured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,500,000 [3],[8],[11],[54]   2,293,000 [6],[10],[53]          
Investment, Identifier [Axis]: Selenium Designated Activity Company, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [2],[3],[8],[25] 7,574,000              
Investment, Identifier [Axis]: Sereni Capital NV, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 943,000 [2],[3],[8],[32]   903,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Sereni Capital NV, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 1,588,000 [2],[3],[8],[32]   1,524,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Serta Simmons Bedding LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 906,000 [13]   655,000 [14]          
Investment, Identifier [Axis]: Shelf Bidco Ltd, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 4,632,000 [3],[8]   4,668,000 [6],[10]          
Investment, Identifier [Axis]: Shelf Bidco Ltd, Second Out Term Loan                
Schedule of Investments [Line Items]                
Fair Value 12,127,000 [1],[2],[3],[8]   12,153,000 [4],[5],[6],[10]          
Investment, Identifier [Axis]: Sierra Senior Loan Strategy JV I LLC, Member Interest                
Schedule of Investments [Line Items]                
Fair Value [10],[16],[51]     41,453,000          
Investment, Identifier [Axis]: Sierra Senior Loan Strategy JV I LLC, Member Interest                
Schedule of Investments [Line Items]                
Fair Value 40,548,000 [8],[15],[52]   41,453,000 39,172,000        
Investment, Identifier [Axis]: Sierra Senior Loan Strategy JV LLC (Sierra JV)                
Schedule of Investments [Line Items]                
Total contributed capital 110,100,000              
Investment, Identifier [Axis]: Sinari Invest, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,969,000 [2],[3],[8],[11],[25]   1,858,000 [5],[6],[10],[12],[24]          
Investment, Identifier [Axis]: Skyvault Holdings LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 12,139,000 [3],[11]   3,586,000 [6],[12]          
Investment, Identifier [Axis]: Skyvault Holdings LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 12,139,000 [45]   3,586,000 [45] 0 [46]        
Investment, Identifier [Axis]: Skyvault Holdings LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 4,046,000 [3],[13]   1,195,000 [6],[14]          
Investment, Identifier [Axis]: Skyvault Holdings LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 4,046,000 [45]   1,195,000 [45] 0 [46]        
Investment, Identifier [Axis]: SmartShift Group, Inc., Common Stock                
Schedule of Investments [Line Items]                
Fair Value 519,000 [3],[13]   483,000 [6],[14]          
Investment, Identifier [Axis]: SmartShift Group, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 12,912,000 [2],[3],[22]   12,944,000 [4],[5],[6]          
Investment, Identifier [Axis]: SmartShift Group, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [2],[3],[11],[22]   0 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Smartling, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 10,410,000 [2],[3],[22]   10,437,000 [4],[5],[6]          
Investment, Identifier [Axis]: Smartling, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [2],[3],[11],[22]   0 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Smile Brands Group Inc., First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 1,166,000 [1],[2],[3]   1,230,000 [4],[5],[6]          
Investment, Identifier [Axis]: Smile Brands Group Inc., First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 3,310,000 [1],[2],[3]   3,477,000 [4],[5],[6]          
Investment, Identifier [Axis]: Solo Buyer, L.P., Common Equity                
Schedule of Investments [Line Items]                
Fair Value 398,000 [3],[13]   325,000 [6],[14]          
Investment, Identifier [Axis]: Solo Buyer, L.P., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 15,279,000 [1],[2],[3]   14,826,000 [4],[5],[6]          
Investment, Identifier [Axis]: Solo Buyer, L.P., Revolver                
Schedule of Investments [Line Items]                
Fair Value 862,000 [1],[2],[3],[11]   466,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Sound Point CLO XX, Ltd., Subordinated Structured Notes                
Schedule of Investments [Line Items]                
Fair Value 44,000 [8],[13],[15]   61,000 [10],[14],[16]          
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 2,052,000 [1],[2],[3],[11]   2,057,000 [5],[6],[12],[23]          
Investment, Identifier [Axis]: Sparus Holdings, LLC (f/k/a Sparus Holdings, Inc.), Revolver                
Schedule of Investments [Line Items]                
Fair Value 77,000 [1],[2],[3],[11]   (1,000) [5],[6],[12],[23]          
Investment, Identifier [Axis]: Spatial Business Systems LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 14,878,000 [1],[2],[3]   14,706,000 [4],[5],[6]          
Investment, Identifier [Axis]: Spatial Business Systems LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [1],[2],[3],[11]   (21,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Starnmeer B.V., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,500,000 [2],[3],[8],[22]   2,500,000 [5],[6],[10],[23]          
Investment, Identifier [Axis]: Superjet Buyer, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 17,703,000 [1],[2],[3],[11]   17,712,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Superjet Buyer, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (35,000) [1],[2],[3],[11]   (38,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Syniverse Holdings, Inc., Series A Preferred Equity                
Schedule of Investments [Line Items]                
Fair Value 10,379,000 [3]   10,076,000 [6]          
Investment, Identifier [Axis]: TA SL Cayman Aggregator Corp., Common Stock                
Schedule of Investments [Line Items]                
Fair Value 83,000 [3],[13]   84,000 [6],[14]          
Investment, Identifier [Axis]: TA SL Cayman Aggregator Corp., Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,969,000 [3]   2,785,000 [6]          
Investment, Identifier [Axis]: TAPCO Buyer LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 13,559,000 [1],[2],[3]   13,517,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: TAPCO Buyer LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 261,000 [3],[13]   252,000 [6],[14]          
Investment, Identifier [Axis]: TAPCO Buyer LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (38,000) [1],[2],[3],[11]   (44,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: THG Acquisition, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 10,246,000 [2],[3],[11],[20]   10,187,000 [5],[6],[12],[21]          
Investment, Identifier [Axis]: THG Acquisition, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 56,000 [2],[3],[11],[20]   97,000 [5],[6],[12],[21]          
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc., First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 2,568,000 [1],[2],[3]   2,572,000 [4],[5],[6]          
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc., First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 2,142,000 [1],[2],[3]   953,000 [4],[5],[6]          
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc., First Lien Senior Secured Term Loan 3                
Schedule of Investments [Line Items]                
Fair Value 7,859,000 [1],[2],[3],[11]   1,192,000 [4],[5],[6]          
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc., First Lien Senior Secured Term Loan 4                
Schedule of Investments [Line Items]                
Fair Value [4],[5],[6],[12]     7,837,000          
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc., Partnership Units                
Schedule of Investments [Line Items]                
Fair Value 25,000 [3]   26,000 [6]          
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value (4,000) [1],[2],[3],[11]   (4,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Tank Holding Corp, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 7,792,000 [2],[3],[20]   7,792,000 [5],[6],[23]          
Investment, Identifier [Axis]: Tank Holding Corp, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 2,998,000 [2],[3],[20]   2,868,000 [5],[6],[12],[21]          
Investment, Identifier [Axis]: Tank Holding Corp, Revolver                
Schedule of Investments [Line Items]                
Fair Value (10,000) [2],[3],[11],[20]   (12,000) [5],[6],[12],[23]          
Investment, Identifier [Axis]: Tanqueray Bidco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,693,000 [2],[3],[8],[11],[27]   1,643,000 [5],[6],[10],[12],[26]          
Investment, Identifier [Axis]: Team Air Distributing, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [6]     35,000          
Investment, Identifier [Axis]: Team Air Distributing, LLC, Partnership Equity                
Schedule of Investments [Line Items]                
Fair Value 573,000 [3],[13]   625,000 [6],[14]          
Investment, Identifier [Axis]: Team Air Distributing, LLC, Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair Value 739,000 [3]   702,000 [6]          
Investment, Identifier [Axis]: Technology Service Stream BidCo Pty Ltd, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 674,000 [2],[3],[8],[11],[30]   677,000 [5],[6],[10],[12],[19]          
Investment, Identifier [Axis]: Techone B.V., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,796,000 [2],[3],[8],[17]   3,609,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: Techone B.V., Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [2],[3],[8],[11],[17]   (4,000) [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: Tencarva Machinery Company, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 14,010,000 [1],[2],[3],[11]   8,364,000 [4],[5],[6]          
Investment, Identifier [Axis]: Tencarva Machinery Company, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value (32,000) [1],[2],[3],[11]   (18,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Terrybear, Inc., Partnership Equity                
Schedule of Investments [Line Items]                
Fair Value 79,000 [3],[13]   120,000 [6],[14]          
Investment, Identifier [Axis]: Terrybear, Inc., Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair Value 266,000 [3]   268,000 [6]          
Investment, Identifier [Axis]: The Caprock Group, Inc. (aka TA/TCG Holdings, LLC), First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,645,000 [2],[3],[20]   2,647,000 [4],[5],[6]          
Investment, Identifier [Axis]: The Caprock Group, Inc. (aka TA/TCG Holdings, LLC), Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [2],[3],[11],[20]   0 [4],[5],[6],[12]          
Investment, Identifier [Axis]: The Caprock Group, Inc. (aka TA/TCG Holdings, LLC), Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,791,000 [2],[3],[22]   3,791,000 [5],[6],[23]          
Investment, Identifier [Axis]: The Octave Music Group, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,504,000 [1],[2]   3,595,000 [4],[5]          
Investment, Identifier [Axis]: The Octave Music Group, Inc., Partnership Equity                
Schedule of Investments [Line Items]                
Fair Value 2,180,000 [3],[13]   2,180,000 [6]          
Investment, Identifier [Axis]: Thompson Rivers LLC                
Schedule of Investments [Line Items]                
Total contributed capital               $ 75,000,000
Investment, Identifier [Axis]: Thompson Rivers LLC, Member Interest                
Schedule of Investments [Line Items]                
Fair Value [14],[51]     7,208,000          
Investment, Identifier [Axis]: Thompson Rivers LLC, Member Interest                
Schedule of Investments [Line Items]                
Fair Value 6,237,000 [13],[52]   7,208,000 13,365,000        
Investment, Identifier [Axis]: Thompsonn Rivers LLC                
Schedule of Investments [Line Items]                
Total contributed capital 79,411,000   79,411,000          
Investment, Identifier [Axis]: Transportation Insight, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 8,667,000 [1],[2],[3]   8,518,000 [4],[5],[6]          
Investment, Identifier [Axis]: Trident Maritime Systems, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 14,186,000 [1],[2],[3]   14,420,000 [4],[5],[6]          
Investment, Identifier [Axis]: Trintech, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,795,000 [2],[3],[20]   6,787,000 [5],[6],[21]          
Investment, Identifier [Axis]: Trintech, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 147,000 [2],[3],[11],[20]   145,000 [5],[6],[12],[21]          
Investment, Identifier [Axis]: True Religion Apparel, Inc., Class A Units                
Schedule of Investments [Line Items]                
Fair Value [6],[14],[16]     0          
Investment, Identifier [Axis]: Turbo Buyer, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 7,677,000 [1],[2],[3]   7,754,000 [4],[5],[6]          
Investment, Identifier [Axis]: Turnberry Solutions, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,861,000 [2],[3],[20]   4,874,000 [5],[6],[21]          
Investment, Identifier [Axis]: UBC Ledgers Holding AB, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 559,000 [1],[2],[3],[8]   536,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: UBC Ledgers Holding AB, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 1,595,000 [2],[3],[8],[11],[60]   1,450,000 [5],[6],[10],[12],[34]          
Investment, Identifier [Axis]: UHY Advisors, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 13,247,000 [1],[2],[3],[11]   12,982,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: UHY Advisors, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 779,000 [1],[2],[3],[11]   (35,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: UKFast Leaders Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 11,403,000 [2],[3],[8],[27]   11,041,000 [5],[6],[10],[26]          
Investment, Identifier [Axis]: US Bank National Association Series 2025-1, Structured Note - Class R                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3],[8] 7,500,000              
Investment, Identifier [Axis]: USLS Acquisition, Inc. (f/k/a US Legal Support, Inc.), First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 12,440,000 [1],[2],[3]   12,487,000 [4],[5],[6]          
Investment, Identifier [Axis]: USLS Acquisition, Inc. (f/k/a US Legal Support, Inc.), First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 5,397,000 [1],[2],[3]   5,411,000 [4],[5],[6]          
Investment, Identifier [Axis]: Union Bidco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 961,000 [2],[3],[8],[11],[27]   930,000 [5],[6],[10],[12],[29]          
Investment, Identifier [Axis]: United Therapy Holding III GmbH, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,455,000 [2],[3],[8],[11],[17]   1,204,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: Unither (Uniholding), First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,047,000 [2],[3],[8],[11],[17]   1,962,000 [5],[6],[10],[12],[18]          
Investment, Identifier [Axis]: Utac Ceram, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 1,565,000 [2],[3],[8],[17]   1,500,000 [5],[6],[10],[18]          
Investment, Identifier [Axis]: Utac Ceram, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 937,000 [1],[2],[3],[8]   2,471,000 [4],[5],[6],[10]          
Investment, Identifier [Axis]: Utac Ceram, First Lien Senior Secured Term Loan 3                
Schedule of Investments [Line Items]                
Fair Value 2,460,000 [1],[2],[3],[8]   943,000 [4],[5],[6],[10]          
Investment, Identifier [Axis]: VB Spine Intermediary II LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3] 43,527,000              
Investment, Identifier [Axis]: VOYA CLO 2015-2, LTD., Subordinated Structured Notes                
Schedule of Investments [Line Items]                
Fair Value 81,000 [8],[13],[15]   15,000 [10],[14],[16]          
Investment, Identifier [Axis]: VOYA CLO 2016-2, LTD., Subordinated Structured Notes                
Schedule of Investments [Line Items]                
Fair Value 1,198,000 [8],[13],[15]   1,072,000 [10],[14],[16]          
Investment, Identifier [Axis]: Validity, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 4,783,000 [2],[3],[22]   4,783,000 [5],[6],[21]          
Investment, Identifier [Axis]: Velocity Pooling Vehicle, LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 2,000 [3],[13],[15]   2,000 [6],[14],[16]          
Investment, Identifier [Axis]: Velocity Pooling Vehicle, LLC, Warrants                
Schedule of Investments [Line Items]                
Fair Value 3,000 [3],[13],[15]   3,000 [6],[14],[16]          
Investment, Identifier [Axis]: Victoria Bidco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,923,000 [2],[3],[8],[28]   3,787,000 [5],[6],[10],[29]          
Investment, Identifier [Axis]: Vision Solutions Inc., Second Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 6,237,000 [1],[2],[15]   6,256,000 [4],[5],[16]          
Investment, Identifier [Axis]: Vista Global Holding Ltd, Structured Secured Note - Class C                
Schedule of Investments [Line Items]                
Fair Value 499,000 [3],[8]   495,000 [6],[10]          
Investment, Identifier [Axis]: VistaJet Pass Through Trust 2021-1B, Structured Secured Note - Class B                
Schedule of Investments [Line Items]                
Fair Value 2,811,000 [3]   3,160,000 [6]          
Investment, Identifier [Axis]: Vital Buyer, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 17,881,000 [1],[2],[3]   7,241,000 [4],[5],[6]          
Investment, Identifier [Axis]: Vital Buyer, LLC, Partnership Units                
Schedule of Investments [Line Items]                
Fair Value 309,000 [3]   388,000 [6]          
Investment, Identifier [Axis]: W2O Holdings, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 14,928,000 [2],[3],[20]   11,772,000 [4],[5],[6]          
Investment, Identifier [Axis]: WEST-NR ACQUISITIONCO, LLC, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 8,465,000 [1],[2],[3],[11]   2,502,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: WEST-NR ACQUISITIONCO, LLC, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 1,817,000 [1],[2],[3],[11]   5,959,000 [4],[5],[6]          
Investment, Identifier [Axis]: WEST-NR ACQUISITIONCO, LLC, First Lien Senior Secured Term Loan 3                
Schedule of Investments [Line Items]                
Fair Value [4],[5],[6],[12]     1,816,000          
Investment, Identifier [Axis]: WWEC Holdings III Corp, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 12,008,000 [1],[2],[3]   12,050,000 [4],[5],[6]          
Investment, Identifier [Axis]: WWEC Holdings III Corp, Revolver                
Schedule of Investments [Line Items]                
Fair Value (37,000) [1],[2],[3],[11]   (35,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Waccamaw River LLC                
Schedule of Investments [Line Items]                
Total contributed capital 30,280,000   30,280,000       $ 25,000,000  
Investment, Identifier [Axis]: Waccamaw River LLC, Member Interest                
Schedule of Investments [Line Items]                
Fair Value [10],[51]     10,730,000          
Investment, Identifier [Axis]: Waccamaw River LLC, Member Interest                
Schedule of Investments [Line Items]                
Fair Value 8,803,000 [8],[52]   10,730,000 $ 15,470,000        
Investment, Identifier [Axis]: Whitcraft Holdings, Inc., First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 1,804,000 [1],[2],[3]   1,802,000 [4],[5],[6]          
Investment, Identifier [Axis]: Whitcraft Holdings, Inc., First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 1,170,000 [1],[2],[3],[11]   (36,000) [4],[5],[6],[12]          
Investment, Identifier [Axis]: Whitcraft Holdings, Inc., First Lien Senior Secured Term Loan 3                
Schedule of Investments [Line Items]                
Fair Value 8,504,000 [1],[2],[3]   8,525,000 [5],[6],[21]          
Investment, Identifier [Axis]: Whitcraft Holdings, Inc., LP Units                
Schedule of Investments [Line Items]                
Fair Value 971,000 [3],[13]   975,000 [6],[14]          
Investment, Identifier [Axis]: Whitcraft Holdings, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 1,255,000 [1],[2],[3],[11]   993,000 [5],[6],[12],[21]          
Investment, Identifier [Axis]: White Bidco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 1,749,000 [1],[2],[3],[8],[11]   1,747,000 [4],[5],[6],[10],[12]          
Investment, Identifier [Axis]: Woodland Foods, LLC, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 1,556,000 [3],[13]   1,271,000 [6],[14]          
Investment, Identifier [Axis]: Woodland Foods, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 15,514,000 [1],[2],[3],[11]   6,097,000 [4],[5],[6]          
Investment, Identifier [Axis]: Woodland Foods, LLC, Preferred Stock                
Schedule of Investments [Line Items]                
Fair Value [6]     427,000          
Investment, Identifier [Axis]: Woodland Foods, LLC, Preferred Stock 1                
Schedule of Investments [Line Items]                
Fair Value [3] 448,000              
Investment, Identifier [Axis]: Woodland Foods, LLC, Preferred Stock 2                
Schedule of Investments [Line Items]                
Fair Value [3] 124,000              
Investment, Identifier [Axis]: Woodland Foods, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 869,000 [1],[2],[3],[11]   1,043,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: World 50, Inc., First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 13,862,000 [1],[2],[3]   13,785,000 [5],[6],[21]          
Investment, Identifier [Axis]: World 50, Inc., Revolver                
Schedule of Investments [Line Items]                
Fair Value 0 [1],[2],[3],[11]   (8,000) [5],[6],[12],[21]          
Investment, Identifier [Axis]: Xeinadin Bidco Limited, Common Stock                
Schedule of Investments [Line Items]                
Fair Value 589,000 [3],[8],[13]   572,000 [6],[10],[14]          
Investment, Identifier [Axis]: Xeinadin Bidco Limited, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value 298,000 [2],[3],[8],[25]   283,000 [5],[6],[10],[24]          
Investment, Identifier [Axis]: Xeinadin Bidco Limited, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value 8,956,000 [2],[3],[8],[28]   8,598,000 [5],[6],[10],[29]          
Investment, Identifier [Axis]: Xeinadin Bidco Limited, Subordinated Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,870,000 [3],[8]   3,691,000 [6],[10]          
Investment, Identifier [Axis]: ZB Holdco LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value [4],[5],[6]     9,053,000          
Investment, Identifier [Axis]: ZB Holdco LLC, First Lien Senior Secured Term Loan 1                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3] 9,050,000              
Investment, Identifier [Axis]: ZB Holdco LLC, First Lien Senior Secured Term Loan 2                
Schedule of Investments [Line Items]                
Fair Value [1],[2],[3],[11] (22,000)              
Investment, Identifier [Axis]: ZB Holdco LLC, LLC Units                
Schedule of Investments [Line Items]                
Fair Value 222,000 [3],[13]   197,000 [6],[14]          
Investment, Identifier [Axis]: ZB Holdco LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value 983,000 [1],[2],[3],[11]   495,000 [4],[5],[6],[12]          
Investment, Identifier [Axis]: Zeppelin Bidco Limited, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 2,873,000 [2],[3],[8],[28],[35]   4,691,000 [5],[6],[10],[29]          
Investment, Identifier [Axis]: eShipping, LLC, First Lien Senior Secured Term Loan                
Schedule of Investments [Line Items]                
Fair Value 3,300,000 [2],[3],[20]   3,465,000 [5],[6],[21]          
Investment, Identifier [Axis]: eShipping, LLC, Revolver                
Schedule of Investments [Line Items]                
Fair Value $ 0 [2],[3],[11],[20]   $ 0 [5],[6],[12],[21]          
[1] The interest rate on these loans is subject to 3 Month SOFR, which as of March 31, 2025 was 4.28788%.
[2] Debt investment includes interest rate floor feature.
[3] The fair value of the investment was determined using significant unobservable inputs.
[4] The interest rate on these loans is subject to 3 Month SOFR, which as of December 31, 2024 was 4.30510%.
[5] Debt investment includes interest rate floor feature.
[6] The fair value of the investment was determined using significant unobservable inputs.
[7] PIK non-accrual investment.
[8] 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 March 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).
[9] PIK non-accrual investment.
[10] Investment is not a qualifying investment as defined under Section 55(a) of the 1940 Act. Non-qualifying assets represent 26.1% of total investments at fair value as of December 31, 2024. 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).
[11] Position or portion thereof is an unfunded loan or equity commitment.
[12] Position or portion thereof is an unfunded loan or equity commitment.
[13] Investment is non-income producing.
[14] Investment is non-income producing.
[15] Investment was purchased as part of the Sierra Merger and is part of the Sierra Reference Portfolio for purposes of the Sierra Credit Support Agreement.
[16] Investment was purchased as part of the Sierra Merger and is part of the Sierra Reference Portfolio for purposes of the Sierra Credit Support Agreement.
[17] The interest rate on these loans is subject to 3 Month EURIBOR, which as of March 31, 2025 was 2.33600%.
[18] The interest rate on these loans is subject to 3 Month EURIBOR, which as of December 31, 2024 was 2.71400%.
[19] The interest rate on these loans is subject to 6 Month BBSY, which as of December 31, 2024 was 4.49250%.
[20] The interest rate on these loans is subject to 1 Month SOFR, which as of March 31, 2025 was 4.31937%.
[21] The interest rate on these loans is subject to 1 Month SOFR, which as of December 31, 2024 was 4.33249%.
[22] The interest rate on these loans is subject to 6 Month SOFR, which as of March 31, 2025 was 4.19259%.
[23] The interest rate on these loans is subject to 6 Month SOFR, which as of December 31, 2024 was 4.25001%.
[24] The interest rate on these loans is subject to 6 Month EURIBOR, which as of December 31, 2024 was 2.56800%.
[25] The interest rate on these loans is subject to 6 Month EURIBOR, which as of March 31, 2025 was 2.33600%.
[26] The interest rate on these loans is subject to 3 Month SONIA, which as of December 31, 2024 was 4.62330%.
[27] The interest rate on these loans is subject to 3 Month SONIA, which as of March 31, 2025 was 4.35650%.
[28] The interest rate on these loans is subject to 6 Month SONIA, which as of March 31, 2025 was 4.27950%.
[29] The interest rate on these loans is subject to 6 Month SONIA, which as of December 31, 2024 was 4.56370%.
[30] The interest rate on these loans is subject to 3 Month BBSY, which as of March 31, 2025 was 4.12540%.
[31] The interest rate on these loans is subject to 3 Month BBSY, which as of December 31, 2024 was 4.41630%.
[32] The interest rate on these loans is subject to 1 Month EURIBOR, which as of March 31, 2025 was 2.35800%.
[33] The interest rate on these loans is subject to 1 Month EURIBOR, which as of December 31, 2024 was 2.84500%.
[34] The interest rate on these loans is subject to 3 Month STIBOR, which as of December 31, 2024 was 2.54200%.
[35] Non-accrual investment.
[36] Non-accrual investment.
[37] Non-accrual investment.
[38] The fair value of the investment was determined using significant unobservable inputs.
[39] The Sierra Credit Support Agreement covers all of the investments acquired by the Company from Sierra in connection with the Sierra Merger and any investments received by the Company in connection with the restructuring, amendment, extension or other modification (including the issuance of new securities) of any of the Sierra Reference Portfolio. Each investment that is included in the Sierra Reference Portfolio is denoted in the above Schedule of Investments with footnote (28).
[40] The fair value of the investment was determined using significant unobservable inputs.
[41] The interest rate on these loans is subject to 1 Month SONIA, which as of March 31, 2025 was 4.46580%.
[42] The interest rate on these loans is subject to 1 Month SONIA, which as of December 31, 2024 was 4.71030%.
[43] The interest rate on these loans is subject to 3 Month CORRA, which as of March 31, 2025 was 2.77000%.
[44] The interest rate on these loans is subject to 3 Month CORRA, which as of December 31, 2024 was 3.15158%.
[45] The fair value of the investment was determined using significant unobservable inputs.
[46] The fair value of the investment was determined using significant unobservable inputs.
[47] The interest rate on these loans is subject to 3 Month BKBM, which as of March 31, 2025 was 3.67000%.
[48] The interest rate on these loans is subject to 3 Month BKBM, which as of December 31, 2024 was 4.27000%.
[49] The interest rate on these loans is subject to 3 Month SARON, which as of March 31, 2025 was 0.41000%
[50] The interest rate on these loans is subject to 6 Month SARON, which as of December 31, 2024 was 1.01720%.
[51] Portfolio company does not issue shares or units, member interest is based on commitments.
[52] Portfolio company does not issue shares or units, member interest is based on commitments.
[53] Investment was purchased as part of the MVC Acquisition and is part of the MVC Reference Portfolio for purposes of the MVC Credit Support Agreement.
[54] Investment was purchased as part of the MVC Acquisition and is part of the MVC Reference Portfolio for purposes of the MVC Credit Support Agreement.
[55] The interest rate on these loans is subject to 1 Month NIBOR, which as of March 31, 2025 was 4.49000%.
[56] The interest rate on these loans is subject to 1 Month NIBOR, which as of December 31, 2024 was 4.61000%.
[57] The interest rate on these loans is subject to 1 Month BBSY, which as of March 31, 2025 was 4.09500%.
[58] The interest rate on these loans is subject to 1 Month BBSY, which as of December 31, 2024 was 4.32250%.
[59] The interest rate on these loans is subject to 6 Month SARON, which as of March 31, 2025 was 0.20632%.
[60] The interest rate on these loans is subject to 3 Month STIBOR, which as of March 31, 2025 was 2.35700%.