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CONSOLIDATED SCHEDULES OF INVESTMENTS - USD ($)
3 Months Ended 12 Months Ended
Sep. 30, 2022
Jun. 30, 2022
Aug. 31, 2022
Aug. 22, 2022
Mar. 28, 2022
Jan. 31, 2022
Dec. 31, 2021
Oct. 28, 2021
Jul. 21, 2021
Jun. 30, 2021
Mar. 23, 2021
Dec. 17, 2018
Schedule of Investments [Line Items]                        
Amortized Cost $ 7,345,486,000 [1],[2] $ 7,196,831,000                    
Fair Value [3] $ 7,582,665,000 [1],[2] $ 7,602,510,000                    
% of Net Assets 191.30% [1],[2] 184.60%                    
Subsidiaries | Reportable Legal Entities | Echelon Transportation, LLC                        
Schedule of Investments [Line Items]                        
Ownership interest [2],[5] 100.00% [1],[4] 100.00% [6],[7]                    
Subsidiaries | Reportable Legal Entities | Freedom Marine Solutions, LLC                        
Schedule of Investments [Line Items]                        
Ownership interest [2],[5],[8] 100.00% [1],[4] 100.00% [6],[7]                    
Subsidiaries | Reportable Legal Entities | Kickapoo Ranch Pet Resort                        
Schedule of Investments [Line Items]                        
Ownership interest [2] 100.00% [1],[4] 100.00% [6],[7]                    
Subsidiaries | Reportable Legal Entities | RGIS Services, LLC                        
Schedule of Investments [Line Items]                        
Ownership interest [2] 5.27% [1],[9] 5.27% [7],[10]                    
Credit Central Loan Company, LLC                        
Schedule of Investments [Line Items]                        
Net of revenues [2],[5],[11] 25.00% [1],[4],[12] 25.00% [6],[7]                    
CP Energy Services Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost [13] $ 257,224,000 [4] $ 255,004,000 [6]                    
Fair Value [3],[13] $ 105,951,000 [4] $ 112,701,000 [6]                    
% of Net Assets [13] 2.70% [4] 2.60% [6]                    
Credit Central Loan Company, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost [11] $ 95,115,000 [4] $ 93,233,000 [6]                    
Fair Value [3],[11] $ 67,457,000 [4] $ 76,935,000 [6]                    
% of Net Assets [11] 1.80% [4] 1.90% [6]                    
Echelon Transportation, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 110,378,000 [4] $ 108,790,000 [6]                    
Fair Value [3] $ 62,022,000 [4] $ 65,766,000 [6]                    
% of Net Assets 1.60% [4] 1.60% [6]                    
First Tower Finance Company LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost [14] $ 396,948,000 [4] $ 387,371,000 [6]                    
Fair Value [3],[14] $ 605,282,000 [4] $ 607,283,000 [6]                    
% of Net Assets [14] 15.30% [4] 14.80% [6]                    
Freedom Marine Solutions, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost [8] $ 45,492,000 [4] $ 45,492,000 [6]                    
Fair Value [3],[8] $ 13,312,000 [4] $ 13,899,000 [6]                    
% of Net Assets [8] 0.30% [4] 0.30% [6]                    
InterDent, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 323,547,000 [4] $ 318,566,000 [6]                    
Fair Value [3] $ 407,534,000 [4] $ 406,194,000 [6]                    
% of Net Assets 10.30% [4] 9.80% [6]                    
Kickapoo Ranch Pet Resort                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 2,378,000 [4] $ 2,378,000 [6]                    
Fair Value [3] $ 3,833,000 [4] $ 3,833,000 [6]                    
% of Net Assets 0.10% [4] 0.10% [6]                    
MITY, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost [15] $ 84,897,000 [4] $ 85,470,000 [6]                    
Fair Value [3],[15] $ 57,828,000 [4] $ 59,999,000 [6]                    
% of Net Assets [15] 1.50% [4] 1.50% [6]                    
NPRC                        
Schedule of Investments [Line Items]                        
Amortized Cost [16] $ 888,296,000 [4] $ 863,196,000 [6]                    
Fair Value [16] $ 1,632,298,000 [3],[4] $ 1,615,737,000 [6]                    
% of Net Assets [16] 41.20% [4] 39.40% [6]                    
Nationwide Loan Company LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost [17] $ 41,628,000 [4] $ 41,106,000 [6]                    
Fair Value [17] $ 49,351,000 [3],[4] $ 50,400,000 [6]                    
% of Net Assets [17] 1.20% [4] 1.20% [6]                    
NMMB, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost [18] $ 29,723,000 [4] $ 29,723,000 [6]                    
Fair Value [18] $ 114,694,000 [3],[4] $ 109,943,000 [6]                    
% of Net Assets [18] 2.80% [4] 2.70% [6]                    
Pacific World Corporation                        
Schedule of Investments [Line Items]                        
Amortized Cost [19] $ 262,399,000 [4] $ 260,396,000 [6]                    
Fair Value [19] $ 65,336,000 [3],[4] $ 59,179,000 [6]                    
% of Net Assets [19] 1.60% [4] 1.40% [6]                    
R-V Industries, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 40,488,000 [4] $ 40,488,000 [6]                    
Fair Value $ 56,118,000 [3],[4] $ 56,923,000 [6]                    
% of Net Assets 1.40% [4] 1.40% [6]                    
Universal Turbine Parts, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost [20] $ 65,208,000 [4] $ 65,216,000 [6]                    
Fair Value [20] $ 36,114,000 [3],[4] $ 31,147,000 [6]                    
% of Net Assets [20] 0.90% [4] 0.80% [6]                    
USES Corp.                        
Schedule of Investments [Line Items]                        
Amortized Cost [21] $ 74,332,000 [4] $ 68,218,000 [6]                    
Fair Value [21] $ 25,669,000 [3],[4] $ 22,395,000 [6]                    
% of Net Assets [21] 0.70% [4] 0.50% [6]                    
Valley Electric Company, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost [22] $ 68,303,000 [4] $ 68,259,000 [6]                    
Fair Value [22] $ 141,679,000 [3],[4] $ 145,983,000 [6]                    
% of Net Assets [22] 3.50% [4] 3.50% [6]                    
Nixon, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost [23] $ 0 [9] $ 0 [10]                    
Fair Value [3],[23] $ 0 [9] $ 0 [10]                    
% of Net Assets [23] 0.00% [9] 0.00% [10]                    
PGX Holdings, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost [24] $ 224,570,000 [9] $ 225,313,000 [10]                    
Fair Value [3],[24] $ 287,751,000 [9] $ 340,253,000 [10]                    
% of Net Assets [24] 7.30% [9] 8.20% [10]                    
RGIS Services, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 9,523,000 [9] $ 13,983,000 [10]                    
Fair Value [3] $ 9,755,000 [9] $ 17,004,000 [10]                    
% of Net Assets 0.20% [9] 0.40% [10]                    
8th Avenue Food & Provisions, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 31,976,000 $ 31,966,000                    
Fair Value [3] $ 27,032,000 $ 27,668,000                    
% of Net Assets 0.70% 0.70%                    
ABG Intermediate Holdings 2 LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 8,939,000 $ 8,937,000                    
Fair Value [3] $ 8,734,000 $ 8,666,000                    
% of Net Assets 0.20% 0.20%                    
AmeriLife Holdings, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost   $ 21,966,000                    
Fair Value [3]   $ 22,280,000                    
% of Net Assets   0.50%                    
Apidos CLO XI                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 37,499,000 $ 37,155,000                    
Fair Value [3] $ 28,094,000 $ 29,691,000                    
% of Net Assets 0.70% 0.70%                    
Apidos CLO XII                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 33,248,000 $ 33,580,000                    
Fair Value [3] $ 28,778,000 $ 28,847,000                    
% of Net Assets 0.70% 0.70%                    
Apidos CLO XV                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 34,512,000 $ 34,910,000                    
Fair Value [3] $ 28,534,000 $ 28,370,000                    
% of Net Assets 0.70% 0.70%                    
Apidos CLO XXII                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 28,543,000 $ 28,563,000                    
Fair Value [3] $ 25,308,000 $ 25,318,000                    
% of Net Assets 0.60% 0.60%                    
Atlantis Health Care Group (Puerto Rico), Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 61,611,000 $ 61,815,000                    
Fair Value [3] $ 61,611,000 $ 61,815,000                    
% of Net Assets 1.60% 1.50%                    
Barings CLO 2018-III                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 35,128,000 $ 36,316,000                    
Fair Value [3] $ 23,228,000 $ 24,262,000                    
% of Net Assets 0.60% 0.60%                    
BCPE North Star US Holdco 2, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 94,135,000 $ 94,110,000                    
Fair Value [3] $ 93,668,000 $ 94,815,000                    
% of Net Assets 2.40% 2.30%                    
BCPE Osprey Buyer, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 64,513,000 $ 64,675,000                    
Fair Value [3] $ 63,927,000 $ 64,675,000                    
% of Net Assets 1.60% 1.60%                    
Belnick, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 90,828,000 $ 91,406,000                    
Fair Value [3] $ 90,828,000 $ 91,406,000                    
% of Net Assets 2.30% 2.20%                    
Broder Bros., Co.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 165,628,000 $ 166,686,000                    
Fair Value [3] $ 165,628,000 $ 166,686,000                    
% of Net Assets 4.20% 4.00%                    
California Street CLO IX Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 42,483,000 $ 42,472,000                    
Fair Value [3] $ 29,652,000 $ 30,078,000                    
% of Net Assets 0.70% 0.70%                    
Candle-Lite Company, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 20,874,000 $ 20,936,000                    
Fair Value [3] $ 20,874,000 $ 20,936,000                    
% of Net Assets 0.60% 0.50%                    
Capstone Logistics Acquisition, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 8,256,000 $ 8,246,000                    
Fair Value [3] $ 8,500,000 $ 8,500,000                    
% of Net Assets 0.20% 0.20%                    
Carlyle C17 CLO Limited                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 14,762,000 $ 14,756,000                    
Fair Value [3] $ 13,200,000 $ 13,159,000                    
% of Net Assets 0.30% 0.30%                    
Carlyle Global Market Strategies CLO 2014-4-R, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 18,152,000 $ 18,342,000                    
Fair Value [3] $ 15,133,000 $ 15,294,000                    
% of Net Assets 0.40% 0.40%                    
Carlyle Global Market Strategies CLO 2016-3, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 29,900,000 $ 29,777,000                    
Fair Value [3] $ 25,644,000 $ 26,223,000                    
% of Net Assets 0.60% 0.60%                    
Cent CLO 21 Limited                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 32,922,000 $ 33,984,000                    
Fair Value [3] $ 24,685,000 $ 26,391,000                    
% of Net Assets 0.60% 0.60%                    
CIFC Funding 2013-III-R, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 26,547,000 $ 26,776,000                    
Fair Value [3] $ 20,365,000 $ 20,566,000                    
% of Net Assets 0.50% 0.50%                    
CIFC Funding 2013-IV, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 30,742,000 $ 30,747,000                    
Fair Value [3] $ 27,694,000 $ 28,087,000                    
% of Net Assets 0.70% 0.70%                    
CIFC Funding 2014-IV-R, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 32,606,000 $ 32,368,000                    
Fair Value [3] $ 25,895,000 $ 27,115,000                    
% of Net Assets 0.70% 0.70%                    
CIFC Funding 2016-I, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 30,692,000 $ 30,444,000                    
Fair Value [3] $ 28,660,000 $ 29,000,000                    
% of Net Assets 0.70% 0.70%                    
Collections Acquisition Company, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 36,816,000 $ 36,878,000                    
Fair Value [3] $ 36,816,000 $ 36,878,000                    
% of Net Assets 0.90% 0.90%                    
Columbia Cent CLO 27 Limited                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 30,453,000 $ 29,834,000                    
Fair Value [3] $ 26,421,000 $ 28,052,000                    
% of Net Assets 0.70% 0.70%                    
CP IRIS Holdco I, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 35,000,000 $ 35,000,000                    
Fair Value [3] $ 34,669,000 $ 34,697,000                    
% of Net Assets 0.90% 0.80%                    
Curo Group Holdings Corp.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 47,028,000 $ 47,029,000                    
Fair Value [3] $ 26,681,000 $ 30,550,000                    
% of Net Assets 0.70% 0.70%                    
DRI Holding Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 177,889,000 $ 169,840,000                    
Fair Value [3] $ 175,131,000 $ 168,113,000                    
% of Net Assets 4.40% 4.10%                    
Dunn Paper, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost   $ 11,445,000                    
Fair Value [3]   $ 4,952,000                    
% of Net Assets   0.10%                    
Easy Gardener Products, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 2,001,000 $ 2,001,000                    
Fair Value [3] $ 0 $ 3,613,000                    
% of Net Assets 0.00% 0.10%                    
Engine Group, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 30,542,000 $ 30,542,000 [25]                    
Fair Value [3] $ 3,414,000 $ 3,400,000 [25]                    
% of Net Assets 0.10% 0.10% [25]                    
Engineered Machinery Holdings, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 9,983,000 $ 9,982,000                    
Fair Value [3] $ 9,749,000 $ 9,669,000                    
% of Net Assets 0.20% 0.20%                    
Enseo Acquisition, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 54,313,000 $ 54,450,000                    
Fair Value [3] $ 54,313,000 $ 54,450,000                    
% of Net Assets 1.40% 1.30%                    
EXC Holdings III Corp                        
Schedule of Investments [Line Items]                        
Amortized Cost   $ 12,447,000                    
Fair Value [3]   $ 12,398,000                    
% of Net Assets   0.30%                    
Eze Castle Integration, Inc. (f/k/a/ H.I.G. ECI Merger Sub, Inc.)                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 46,620,000 $ 46,740,000                    
Fair Value [3] $ 46,620,000 $ 46,740,000                    
% of Net Assets 1.20% 1.10%                    
First Brands Group                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 58,894,000 $ 58,891,000                    
Fair Value [3] $ 59,251,000 $ 59,210,000                    
% of Net Assets 1.50% 1.40%                    
Galaxy XV CLO, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 33,614,000 $ 33,868,000                    
Fair Value [3] $ 26,395,000 $ 26,924,000                    
% of Net Assets 0.60% 0.80%                    
Galaxy XXVII CLO, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 16,051,000 $ 15,963,000                    
Fair Value [3] $ 11,970,000 $ 11,898,000                    
% of Net Assets 0.30% 0.30%                    
Galaxy XXVIII CLO, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 26,835,000 $ 27,017,000                    
Fair Value [3] $ 17,819,000 $ 17,407,000                    
% of Net Assets 0.40% 0.40%                    
Halcyon Loan Advisors Funding 2012-1 Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 3,704,000 $ 3,704,000                    
Fair Value [3] $ 6,000 $ 6,000                    
% of Net Assets 0.00% 0.00%                    
Halcyon Loan Advisors Funding 2013-1 Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 19,983,000 $ 19,984,000                    
Fair Value [3] $ 18,000 $ 22,000                    
% of Net Assets 0.00% 0.00%                    
Halcyon Loan Advisors Funding 2014-1 Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 11,822,000 $ 11,822,000                    
Fair Value [3] $ 34,000 $ 37,000                    
% of Net Assets 0.00% 0.00%                    
Halcyon Loan Advisors Funding 2014-2 Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 21,321,000 $ 21,321,000                    
Fair Value [3] $ 44,000 $ 53,000                    
% of Net Assets 0.00% 0.00%                    
Halcyon Loan Advisors Funding 2015-3 Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 29,556,000 $ 29,557,000                    
Fair Value [3] $ 203,000 $ 234,000                    
% of Net Assets 0.00% 0.00%                    
HarbourView CLO VII-R, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 13,083,000 $ 13,024,000                    
Fair Value [3] $ 6,650,000 $ 6,585,000                    
% of Net Assets 0.20% 0.30%                    
Help/Systems Holdings, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 52,309,000 $ 52,295,000                    
Fair Value [3] $ 50,013,000 $ 52,500,000                    
% of Net Assets 1.30% 1.30%                    
Interventional Management Services, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 73,033,000 $ 73,385,000                    
Fair Value [3] $ 71,239,000 $ 72,861,000                    
% of Net Assets 1.80% 1.70%                    
Jefferson Mill CLO Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 17,935,000 $ 18,172,000                    
Fair Value [3] $ 12,734,000 $ 12,879,000                    
% of Net Assets 0.30% 0.40%                    
K&N Parent, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 25,718,000 $ 25,697,000                    
Fair Value [3] $ 14,075,000 $ 24,337,000                    
% of Net Assets 0.40% 0.60%                    
KM2 Solutions LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 23,863,000 $ 23,925,000                    
Fair Value [3] $ 23,863,000 $ 23,925,000                    
% of Net Assets 0.60% 0.60%                    
LCM XIV Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 25,270,000 $ 25,787,000                    
Fair Value [3] $ 18,664,000 $ 19,385,000                    
% of Net Assets 0.50% 0.50%                    
LGC US FINCO, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 29,934,000 $ 30,053,000                    
Fair Value [3] $ 28,898,000 $ 29,609,000                    
% of Net Assets 0.70% 0.70%                    
Magnate Worldwide, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 125,490,000 $ 125,490,000                    
Fair Value [3] $ 125,490,000 $ 125,490,000                    
% of Net Assets 3.20% 3.00%                    
Mamba Purchaser, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 22,846,000 $ 22,840,000                    
Fair Value [3] $ 23,000,000 $ 23,000,000                    
% of Net Assets 0.60% 0.60%                    
Medical Solutions Holdings, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 54,423,000 $ 53,504,000                    
Fair Value [3] $ 54,463,000 $ 53,518,000                    
% of Net Assets 1.40% 1.30%                    
Medusind Acquisition, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 23,320,000 $ 23,488,000 [26]                    
Fair Value [3] $ 23,447,000 $ 23,635,000 [26]                    
% of Net Assets 0.60% 0.60% [26]                    
Mountain View CLO 2013-I Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 24,503,000 $ 25,461,000                    
Fair Value [3] $ 14,982,000 $ 15,560,000                    
% of Net Assets 0.40% 0.40%                    
Mountain View CLO IX Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 24,657,000 $ 25,333,000                    
Fair Value [3] $ 21,417,000 $ 22,510,000                    
% of Net Assets 0.50% 0.60%                    
Nexus Buyer LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 42,500,000 $ 42,500,000                    
Fair Value [3] $ 41,640,000 $ 41,574,000                    
% of Net Assets 1.10% 1.00%                    
Octagon Investment Partners XV, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 29,058,000 $ 29,613,000                    
Fair Value [3] $ 24,383,000 $ 24,235,000                    
% of Net Assets 0.60% 0.70%                    
Octagon Investment Partners 18-R Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 21,735,000 $ 22,064,000                    
Fair Value [3] $ 17,476,000 $ 17,161,000                    
% of Net Assets 0.40% 0.50%                    
OneTouchPoint Corp                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 39,285,000 $ 39,488,000                    
Fair Value [3] $ 39,285,000 $ 39,488,000                    
% of Net Assets 1.00% 1.00%                    
PeopleConnect Holdings, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 226,054,000 $ 233,204,000 [27]                    
Fair Value [3] $ 226,054,000 $ 233,204,000 [27]                    
% of Net Assets 5.70% 5.70% [27]                    
PetVet Care Centers, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 15,945,000 $ 15,941,000                    
Fair Value [3] $ 15,560,000 $ 15,950,000                    
% of Net Assets 0.40% 0.40%                    
PlayPower, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 5,791,000 $ 5,805,000                    
Fair Value [3] $ 5,446,000 $ 5,548,000                    
% of Net Assets 0.10% 0.10%                    
Preventics, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 10,765,000 $ 10,789,000 [28]                    
Fair Value [3] $ 10,761,000 $ 11,050,000 [28]                    
% of Net Assets 0.20% 0.20% [28]                    
RC Buyer, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 19,915,000 $ 19,911,000                    
Fair Value [3] $ 19,435,000 $ 19,989,000                    
% of Net Assets 0.50% 0.50%                    
Redstone Holdco 2 LP                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 49,267,000 $ 49,240,000 [29]                    
Fair Value [3] $ 42,547,000 $ 48,506,000 [29]                    
% of Net Assets 1.10% 1.20% [29]                    
Research Now Group, Inc. & Survey Sampling International LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 57,954,000 $ 57,851,000                    
Fair Value [3] $ 54,234,000 $ 58,129,000                    
% of Net Assets 1.30% 1.40%                    
Rising Tide Holdings, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 22,713,000 $ 22,702,000                    
Fair Value [3] $ 19,717,000 $ 21,583,000                    
% of Net Assets 0.50% 0.50%                    
The RK Logistics Group, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 7,622,000 $ 17,152,000                    
Fair Value [3] $ 16,267,000 $ 19,265,000                    
% of Net Assets 0.50% 0.50%                    
RME Group Holding Company                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 47,547,000 $ 47,797,000                    
Fair Value [3] $ 47,547,000 $ 47,797,000                    
% of Net Assets 1.20% 1.10%                    
Romark WM-R Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 20,019,000 $ 20,448,000                    
Fair Value [3] $ 14,339,000 $ 14,616,000                    
% of Net Assets 0.40% 0.40%                    
Rosa Mexicano                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 23,127,000 $ 23,359,000                    
Fair Value [3] $ 22,234,000 $ 22,651,000                    
% of Net Assets 0.60% 0.50%                    
SEOTownCenter, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 51,610,000 $ 51,740,000                    
Fair Value [3] $ 51,610,000 $ 51,740,000                    
% of Net Assets 1.30% 1.30%                    
Shearer’s Foods, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 4,925,000 $ 4,922,000                    
Fair Value [3] $ 5,000,000 $ 4,953,000                    
% of Net Assets 0.10% 0.10%                    
Shutterfly, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 20,217,000 $ 20,212,000                    
Fair Value [3] $ 16,946,000 $ 17,454,000                    
% of Net Assets 0.40% 0.40%                    
Sorenson Communications, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 34,776,000 $ 34,746,000                    
Fair Value [3] $ 34,782,000 $ 34,965,000                    
% of Net Assets 0.90% 0.80%                    
Southern Veterinary Partners                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 7,939,000 $ 7,937,000                    
Fair Value [3] $ 7,824,000 $ 7,911,000                    
% of Net Assets 0.20% 0.20%                    
Spectrum Holdings III Corp                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 7,484,000 [30],[31] $ 7,483,000                    
Fair Value [3] $ 6,894,000 [30],[31] $ 6,966,000                    
% of Net Assets 0.20% [30],[31] 0.20%                    
Staples, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 8,701,000 $ 8,720,000                    
Fair Value [3] $ 7,821,000 $ 7,921,000                    
% of Net Assets 0.20% 0.20%                    
Strategic Materials                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 12,620,000 $ 6,971,000                    
Fair Value [3] $ 10,864,000 $ 5,737,000                    
% of Net Assets 0.20% 0.10%                    
Stryker Energy, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 0 $ 0                    
Fair Value [3] $ 0 $ 0                    
% of Net Assets 0.00% 0.00%                    
Sudbury Mill CLO Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 0 $ 0                    
Fair Value [3] $ 0 $ 0                    
% of Net Assets 0.00% 0.00%                    
Symphony CLO XIV, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 24,723,000 $ 24,723,000                    
Fair Value [3] $ 13,712,000 $ 14,392,000                    
% of Net Assets 0.30% 0.30%                    
Symphony CLO XV, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 41,773,000 $ 42,037,000                    
Fair Value [3] $ 26,651,000 $ 28,429,000                    
% of Net Assets 0.60% 0.70%                    
Town & Country Holdings, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 159,506,000 $ 166,080,000                    
Fair Value [3] $ 155,023,000 $ 166,080,000                    
% of Net Assets 4.00% 4.00%                    
TPS, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 27,815,000 $ 28,257,000                    
Fair Value [3] $ 27,815,000 $ 28,257,000                    
% of Net Assets 0.70% 0.70%                    
United Sporting Companies, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 103,730,000 $ 103,730,000 [32]                    
Fair Value [3] $ 6,076,000 $ 6,107,000 [32]                    
% of Net Assets 0.20% 0.10% [32]                    
Upstream Newco, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 21,868,000 $ 21,861,000                    
Fair Value [3] $ 21,895,000 $ 22,000,000                    
% of Net Assets 0.60% 0.50%                    
USG Intermediate, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 62,089,000 $ 33,210,000                    
Fair Value [3] $ 62,088,000 $ 33,209,000                    
% of Net Assets 1.60% 0.80%                    
VC GB Holdings I Corp                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 22,804,000 $ 22,797,000                    
Fair Value [3] $ 21,157,000 $ 21,896,000                    
% of Net Assets 0.50% 0.50%                    
Venio LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost   $ 14,554,000                    
Fair Value [3]   $ 12,199,000                    
% of Net Assets   0.30%                    
Victor Technology, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 29,775,000 $ 29,850,000                    
Fair Value [3] $ 29,506,000 $ 29,850,000                    
% of Net Assets 0.70% 0.70%                    
Vision Solutions, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost [33]   $ 79,216,000                    
Fair Value [3],[33]   $ 78,320,000                    
% of Net Assets [33]   1.90%                    
Voya CLO 2012-4, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 28,732,000 $ 28,996,000                    
Fair Value [3] $ 22,547,000 $ 22,424,000                    
% of Net Assets 0.60% 0.50%                    
Voya CLO 2014-1, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 25,089,000 $ 26,014,000                    
Fair Value [3] $ 15,694,000 $ 16,336,000                    
% of Net Assets 0.40% 0.40%                    
Voya CLO 2016-3, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 23,247,000 $ 23,495,000                    
Fair Value [3] $ 18,308,000 $ 18,811,000                    
% of Net Assets 0.50% 0.50%                    
Voya CLO 2017-3, Ltd.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 49,824,000 $ 49,276,000                    
Fair Value [3] $ 39,955,000 $ 41,072,000                    
% of Net Assets 1.00% 1.10%                    
VT Topco, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 32,048,000 $ 32,036,000                    
Fair Value [3] $ 31,657,000 $ 31,839,000                    
% of Net Assets 0.80% 0.80%                    
Wellpath Holdings, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 50,874,000                      
Fair Value [3] $ 48,493,000                      
% of Net Assets 1.20%                      
KNS Acquisition Corp.                        
Schedule of Investments [Line Items]                        
Amortized Cost   $ 9,262,000                    
Fair Value [3]   $ 9,440,000                    
% of Net Assets   0.20%                    
Reception Purchaser, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 62,130,000 $ 52,587,000                    
Fair Value [3] $ 62,488,000 $ 52,924,000                    
% of Net Assets 1.60% 1.30%                    
ShiftKey, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 64,460,000 $ 25,000,000                    
Fair Value [3] $ 65,000,000 $ 25,000,000                    
% of Net Assets 1.60% 0.60%                    
ViaPath Technologies. (f/k/a Global Tel*Link Corporation)                        
Schedule of Investments [Line Items]                        
Amortized Cost   $ 131,220,000                    
Fair Value [3]   $ 131,391,000                    
% of Net Assets   3.20%                    
Wellpath Holdings, Inc. (f/k/a CCS-CMGC Holdings, Inc.)                        
Schedule of Investments [Line Items]                        
Amortized Cost   $ 50,850,000                    
Fair Value [3]   $ 50,657,000                    
% of Net Assets   1.20%                    
Aventiv Technologies, LLC (f/k/a Securus Technologies Holdings, Inc.)                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 59,799,000 $ 59,780,000                    
Fair Value [3] $ 56,607,000 $ 57,556,000                    
% of Net Assets 1.40% 1.40%                    
Barracuda Parent, LLC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 19,413,000                      
Fair Value [3] $ 19,321,000                      
% of Net Assets 0.50%                      
Burgess Point Purchaser Corporation                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 30,000,000                      
Fair Value [3] $ 30,000,000                      
% of Net Assets 0.80%                      
DTI Holdco, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 93,152,000 $ 93,139,000                    
Fair Value [3] $ 92,152,000 $ 93,440,000                    
% of Net Assets 2.40% 2.20%                    
Precisely Software Incorporated                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 79,245,000                      
Fair Value [3] $ 76,383,000                      
% of Net Assets 1.90%                      
Raisin Acquisition Co, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 25,536,000 $ 25,557,000                    
Fair Value [3] $ 25,829,000 $ 25,962,000                    
% of Net Assets 0.60% 0.60%                    
Targus Cayman HoldCo Limited                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 2,805,000 [9] $ 2,805,000 [10],[34]                    
Fair Value [3] $ 19,769,000 [9] $ 36,007,000 [10],[34]                    
% of Net Assets 0.50% [9] 0.90% [10],[34]                    
WatchGuard Technologies, Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 35,000,000                      
Fair Value [3] $ 34,053,000                      
% of Net Assets 0.90%                      
ViaPath Technologies.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 131,289,000                      
Fair Value [3] $ 128,529,000                      
% of Net Assets 3.20%                      
Wellful Inc.                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 27,437,000                      
Fair Value [3] $ 27,146,000                      
% of Net Assets 0.60%                      
Control Investments                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 2,786,356,000 [1],[2],[4] $ 2,732,906,000 [6]                    
Fair Value $ 3,444,478,000 [3],[4] $ 3,438,317,000 [6]               $ 2,919,717,000    
% of Net Assets 86.90% [4] 83.50% [6]                    
Affiliate Investments                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 236,898,000 [1],[2],[9] $ 242,101,000 [10]                    
Fair Value $ 317,275,000 [1],[2],[3],[9] $ 393,264,000 [3],[10]               356,734,000    
% of Net Assets 8.00% [1],[2],[9] 9.50% [10]                    
Non-Control/ Non-Affiliate Investments                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 4,322,232,000 $ 4,221,824,000                    
Fair Value [3] $ 3,820,912,000 $ 3,770,929,000                    
% of Net Assets 96.40% 91.60%                    
Investment, Identifier [Axis]: CP Energy Services Inc., Energy Equipment and Services, First Lien Term Loan 1                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[35] 12.67% [4],[13] 13.25% [6]                    
Basis spread rate [30],[35] 9.00% [4],[13] 11.00% [6]                    
Floor [30],[35] 1.00% [4],[13] 1.00% [6]                    
Principal Value [30],[35] $ 48,046,000 [4],[13] $ 46,698,000 [6]                    
Amortized Cost [30],[35] 48,046,000 [4],[13] 46,698,000 [6]                    
Fair Value [3],[30],[35] $ 48,046,000 [4],[13] $ 46,698,000 [6]                    
% of Net Assets [30],[35] 1.20% [4],[13] 1.10% [6]                    
Investment, Identifier [Axis]: CP Energy Services Inc., Energy Equipment and Services, First Lien Term Loan 2                        
Schedule of Investments [Line Items]                        
Investment interest rate [30] 12.67% [4],[13] 11.25% [6]                    
Basis spread rate [30] 9.00% [4],[13] 8.00% [6]                    
Floor [30] 1.00% [4],[13] 1.00% [6]                    
Principal Value [30] $ 6,173,000 [4],[13] $ 6,000,000 [6]                    
Amortized Cost [30] 6,173,000 [4],[13] 6,000,000 [6]                    
Fair Value [3],[30] $ 6,173,000 [4],[13] $ 6,000,000 [6]                    
% of Net Assets [30] 0.20% [4],[13] 0.10% [6]                    
Investment, Identifier [Axis]: 8th Avenue Food & Provisions, Inc., Food Products, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36] 10.87% 9.42% [31]                    
Basis spread rate [30],[36] 7.75% 7.75% [31]                    
Floor [30],[36] 0.00% 0.00% [31]                    
Principal Value [30],[36] $ 32,133,000 $ 32,133,000 [31]                    
Amortized Cost [30],[36] 31,976,000 31,966,000 [31]                    
Fair Value [3],[30],[36] $ 27,032,000 $ 27,668,000 [31]                    
% of Net Assets [30],[36] 0.70% 0.70% [31]                    
Investment, Identifier [Axis]: ABG Intermediate Holdings 2 LLC, Textiles, Apparel & Luxury Goods, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 9.13% 7.63%                    
Basis spread rate [30],[31],[36] 6.00% 6.00%                    
Floor [30],[31],[36] 0.50% 0.80%                    
Principal Value [30],[31],[36] $ 9,000,000 $ 9,000,000                    
Amortized Cost [30],[31],[36] 8,939,000 8,937,000                    
Fair Value [3],[30],[31],[36] $ 8,734,000 $ 8,666,000                    
% of Net Assets [30],[31],[36] 0.20% 0.20%                    
Investment, Identifier [Axis]: AmeriLife Holdings, LLC, Insurance, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36]   9.56%                    
Basis spread rate [30],[31],[36]   8.50%                    
Floor [30],[31],[36]   1.00%                    
Principal Value [30],[31],[36]   $ 22,280,000                    
Amortized Cost [30],[31],[36]   21,966,000                    
Fair Value [3],[30],[31],[36]   $ 22,280,000                    
% of Net Assets [30],[31],[36]   0.50%                    
Investment, Identifier [Axis]: Apidos CLO XI, Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 13.14% 10.09%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 67,782,000 $ 67,782,000                    
Amortized Cost [12],[37] 37,499,000 37,155,000                    
Fair Value [3],[12],[37] $ 28,094,000 $ 29,691,000                    
% of Net Assets [12],[37] 0.70% 0.70%                    
Investment, Identifier [Axis]: Apidos CLO XII, Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 11.30% 6.72%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 52,203,000 $ 52,203,000                    
Amortized Cost [12],[37] 33,248,000 33,580,000                    
Fair Value [3],[12],[37] $ 28,778,000 $ 28,847,000                    
% of Net Assets [12],[37] 0.70% 0.70%                    
Investment, Identifier [Axis]: Apidos CLO XV, Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 11.24% 7.45%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 48,515,000 $ 48,515,000                    
Amortized Cost [12],[37] 34,512,000 34,910,000                    
Fair Value [3],[12],[37] $ 28,534,000 $ 28,370,000                    
% of Net Assets [12],[37] 0.70% 0.70%                    
Investment, Identifier [Axis]: Apidos CLO XXII, Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 14.83% 10.78%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 35,855,000 $ 35,855,000                    
Amortized Cost [12],[37] 28,543,000 28,563,000                    
Fair Value [3],[12],[37] $ 25,308,000 $ 25,318,000                    
% of Net Assets [12],[37] 0.60% 0.60%                    
Investment, Identifier [Axis]: Atlantis Health Care Group (Puerto Rico), Inc., Health Care Providers & Services, First Lien Revolving Line of Credit                        
Schedule of Investments [Line Items]                        
Uncommitted funds [2],[30],[38] $ 3,000,000 [1] $ 3,000,000 [7]                    
Investment interest rate [30],[38] 12.42% 11.00%                    
Basis spread rate [30],[38] 8.75% 8.75%                    
Floor [30],[38] 2.00% 2.00%                    
Principal Value [30],[38] $ 0 $ 0                    
Amortized Cost [30],[38] 0 0                    
Fair Value [3],[30],[38] $ 0 $ 0                    
% of Net Assets [30],[38] 0.00% 0.00%                    
Investment, Identifier [Axis]: Atlantis Health Care Group (Puerto Rico), Inc., Health Care Providers & Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 12.42% 11.00%                    
Basis spread rate [30],[31] 8.75% 8.75%                    
Floor [30],[31] 2.00% 2.00%                    
Principal Value [30],[31] $ 61,611,000 $ 61,815,000                    
Amortized Cost [30],[31] 61,611,000 61,815,000                    
Fair Value [3],[30],[31] $ 61,611,000 $ 61,815,000                    
% of Net Assets [30],[31] 1.60% 1.50%                    
Investment, Identifier [Axis]: Aventiv Technologies, LLC (f/k/a Securus Technologies Holdings, Inc.), Communications Equipment, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36],[39] 8.17% 6.75%                    
Basis spread rate [30],[31],[36],[39] 4.50% 4.50%                    
Floor [30],[31],[36],[39] 1.00% 1.00%                    
Principal Value [30],[31],[36],[39] $ 9,670,000 $ 9,695,000                    
Amortized Cost [30],[31],[36],[39] 9,214,000 9,202,000                    
Fair Value [3],[30],[31],[36],[39] $ 8,743,000 $ 8,962,000                    
% of Net Assets [30],[31],[36],[39] 0.20% 0.20%                    
Investment, Identifier [Axis]: Aventiv Technologies, LLC (f/k/a Securus Technologies Holdings, Inc.), Communications Equipment, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 11.06% 9.49%                    
Basis spread rate [30],[31],[36] 8.25% 8.25%                    
Floor [30],[31],[36] 1.00% 1.00%                    
Principal Value [30],[31],[36] $ 50,662,000 $ 50,662,000                    
Amortized Cost [30],[31],[36] 50,585,000 50,578,000                    
Fair Value [3],[30],[31],[36] $ 47,864,000 $ 48,594,000                    
% of Net Assets [30],[31],[36] 1.20% 1.20%                    
Investment, Identifier [Axis]: BCPE North Star US Holdco 2, Inc., Food Products, Second Lien Delayed Draw Term Loan                        
Schedule of Investments [Line Items]                        
Uncommitted funds [2],[30],[36],[38] $ 5,185,000 [1] $ 5,185,000 [7]                    
Investment interest rate [30],[36],[38] 10.92% 9.50%                    
Basis spread rate [30],[36],[38] 7.25% 7.25%                    
Floor [30],[36],[38] 0.75% 0.75%                    
Principal Value [30],[36],[38] $ 0 $ 0                    
Amortized Cost [30],[36],[38] 0 0                    
Fair Value [3],[30],[36],[38] $ 0 $ 0                    
% of Net Assets [30],[36],[38] 0.00% 0.00%                    
Investment, Identifier [Axis]: BCPE North Star US Holdco 2, Inc., Food Products, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 10.92% 9.50%                    
Basis spread rate [30],[31],[36] 7.25% 7.25%                    
Floor [30],[31],[36] 0.75% 0.75%                    
Principal Value [30],[31],[36] $ 94,815,000 $ 94,815,000                    
Amortized Cost [30],[31],[36] 94,135,000 94,110,000                    
Fair Value [3],[30],[31],[36] $ 93,668,000 $ 94,815,000                    
% of Net Assets [30],[31],[36] 2.40% 2.30%                    
Investment, Identifier [Axis]: BCPE Osprey Buyer, Inc., Health Care Technology, First Lien Revolving Line of Credit                        
Schedule of Investments [Line Items]                        
Uncommitted funds [2],[30],[36],[38] $ 4,239,000 [1] $ 4,239,000 [7]                    
Investment interest rate [30],[36],[38] 8.71% 7.25%                    
Basis spread rate [30],[36],[38] 5.75% 5.75%                    
Floor [30],[36],[38] 0.75% 0.75%                    
Principal Value [30],[36],[38] $ 0 $ 0                    
Amortized Cost [30],[36],[38] 0 0                    
Fair Value [3],[30],[36],[38] $ 0 $ 0                    
% of Net Assets [30],[36],[38] 0.00% 0.00%                    
Investment, Identifier [Axis]: BCPE Osprey Buyer, Inc., Health Care Technology, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36] 8.71% 7.25%                    
Basis spread rate [30],[36] 5.75% 5.75%                    
Floor [30],[36] 0.75% 0.75%                    
Principal Value [30],[36] $ 64,513,000 $ 64,675,000                    
Amortized Cost [30],[36] 64,513,000 64,675,000                    
Fair Value [3],[30],[36] $ 63,927,000 $ 64,675,000                    
% of Net Assets [30],[36] 1.60% 1.60%                    
Investment, Identifier [Axis]: BCPE Osprey Buyer, Inc., Health Care Technology, Second Lien Delayed Draw Term Loan                        
Schedule of Investments [Line Items]                        
Uncommitted funds [2],[30],[36],[38] $ 22,609,000 [1] $ 22,609,000 [7]                    
Investment interest rate [30],[36],[38] 8.71% 7.25%                    
Basis spread rate [30],[36],[38] 5.75% 5.75%                    
Floor [30],[36],[38] 0.75% 0.75%                    
Principal Value [30],[36],[38] $ 0 $ 0                    
Amortized Cost [30],[36],[38] 0 0                    
Fair Value [3],[30],[36],[38] $ 0 $ 0                    
% of Net Assets [30],[36],[38] 0.00% 0.00%                    
Investment, Identifier [Axis]: Barings CLO 2018-III, Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37],[40] 0.00% 0.00%                    
Floor [12],[37],[40] 0.00% 0.00%                    
Principal Value [12],[37],[40] $ 83,097,000 $ 83,097,000                    
Amortized Cost [12],[37],[40] 35,128,000 36,316,000                    
Fair Value [3],[12],[37],[40] $ 23,228,000 $ 24,262,000                    
% of Net Assets [12],[37],[40] 0.60% 0.60%                    
Investment, Identifier [Axis]: Barracuda Parent, LLC, IT Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36] 9.85%                      
Basis spread rate [30],[36] 7.00%                      
Floor [30],[36] 0.50%                      
Principal Value [30],[36] $ 20,000,000                      
Amortized Cost [30],[36] 19,413,000                      
Fair Value [3],[30],[36] $ 19,321,000                      
% of Net Assets [30],[36] 0.50%                      
Investment, Identifier [Axis]: Belnick, LLC, Household Durables, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 11.17% 10.25%                    
Basis spread rate [30],[31] 7.50% 8.00%                    
Floor [30],[31] 1.00% 1.00%                    
Principal Value [30],[31] $ 90,828,000 $ 91,406,000                    
Amortized Cost [30],[31] 90,828,000 91,406,000                    
Fair Value [3],[30],[31] $ 90,828,000 $ 91,406,000                    
% of Net Assets [30],[31] 2.30% 2.20%                    
Investment, Identifier [Axis]: Broder Bros., Co., Textiles, Apparel & Luxury Goods, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 9.60% 7.39%                    
Basis spread rate [30],[31] 6.00% 6.00%                    
Floor [30],[31] 1.00% 1.00%                    
Principal Value [30],[31] $ 165,628,000 $ 166,686,000                    
Amortized Cost [30],[31] 165,628,000 166,686,000                    
Fair Value [3],[30],[31] $ 165,628,000 $ 166,686,000                    
% of Net Assets [30],[31] 4.20% 4.00%                    
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation, Auto Components, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36] 12.16%                      
Basis spread rate [30],[36] 9.00%                      
Floor [30],[36] 0.75%                      
Principal Value [30],[36] $ 30,000,000                      
Amortized Cost [30],[36] 30,000,000                      
Fair Value [3],[30],[36] $ 30,000,000                      
% of Net Assets [30],[36] 0.80%                      
Investment, Identifier [Axis]: CIFC Funding 2013-III-R, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 13.47% 9.36%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 44,100,000 $ 44,100,000                    
Amortized Cost [12],[37] 26,547,000 26,776,000                    
Fair Value [3],[12],[37] $ 20,365,000 $ 20,566,000                    
% of Net Assets [12],[37] 0.50% 0.50%                    
Investment, Identifier [Axis]: CIFC Funding 2013-IV, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 15.39% 13.43%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 45,500,000 $ 45,500,000                    
Amortized Cost [12],[37] 30,742,000 30,747,000                    
Fair Value [3],[12],[37] $ 27,694,000 $ 28,087,000                    
% of Net Assets [12],[37] 0.70% 0.70%                    
Investment, Identifier [Axis]: CIFC Funding 2014-IV-R, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 16.50% 14.17%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 50,143,000 $ 50,143,000                    
Amortized Cost [12],[37] 32,606,000 32,368,000                    
Fair Value [3],[12],[37] $ 25,895,000 $ 27,115,000                    
% of Net Assets [12],[37] 0.70% 0.70%                    
Investment, Identifier [Axis]: CIFC Funding 2016-I, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 17.06% 14.47%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 34,000,000 $ 34,000,000                    
Amortized Cost [12],[37] 30,692,000 30,444,000                    
Fair Value [3],[12],[37] $ 28,660,000 $ 29,000,000                    
% of Net Assets [12],[37] 0.70% 0.70%                    
Investment, Identifier [Axis]: CP Energy - Spartan Energy Services, Inc. | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 40,778,000 $ 48,441,000               26,866,000    
Investment, Identifier [Axis]: CP Energy Services Inc. | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 65,173,000 $ 64,260,000               44,621,000    
Investment, Identifier [Axis]: CP Energy Services Inc. - First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Interest, PIK 12.67% 13.25%                    
Investment, Identifier [Axis]: CP Energy Services Inc. - First Lien Term Loan A to Spartan Energy Services, LLC                        
Schedule of Investments [Line Items]                        
Interest, PIK 11.12% 9.67%   11.12%       9.67%        
Investment, Identifier [Axis]: CP Energy Services Inc., Energy Equipment & Services, Common Stock                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5],[13] 102,924 [1],[4] 102,924 [6],[7]                    
Amortized Cost [5],[13] $ 86,240,000 [4] $ 86,240,000 [6]                    
Fair Value [3],[5],[13] $ 0 [4] $ 0 [6]                    
% of Net Assets [5],[13] 0.00% [4] 0.00% [6]                    
Investment, Identifier [Axis]: CP Energy Services Inc., Energy Equipment & Services, First Lien Term Loan A to Spartan Energy Services, LLC                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[35] 11.12% [4],[13] 9.67% [6]                    
Basis spread rate [30],[35] 8.00% [4],[13] 8.00% [6]                    
Floor [30],[35] 1.00% [4],[13] 1.00% [6]                    
Principal Value [30],[35] $ 27,347,000 [4],[13] $ 26,648,000 [6]                    
Amortized Cost [30],[35] 27,347,000 [4],[13] 26,648,000 [6]                    
Fair Value [3],[30],[35] $ 27,347,000 [4],[13] $ 26,648,000 [6]                    
% of Net Assets [30],[35] 0.70% [4],[13] 0.60% [6]                    
Investment, Identifier [Axis]: CP Energy Services Inc., Energy Equipment & Services, Series A Preferred Units to Spartan Energy Holdings, Inc.                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5] 10,000 [1],[4],[13] 10,000 [6],[7]                    
Investment interest rate [4],[5],[13] 15.00%                      
Amortized Cost [5] $ 26,193,000 [4],[13] $ 26,193,000 [6]                    
Fair Value [3],[5] $ 13,431,000 [4],[13] $ 21,793,000 [6]                    
% of Net Assets [5] 0.30% [4],[13] 0.50% [6]                    
Investment, Identifier [Axis]: CP Energy Services Inc., Energy Equipment & Services, Series B Convertible Preferred Stock                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5] 790 [1],[4],[13] 790 [6],[7]                    
Investment interest rate [4],[5],[13] 16.00%                      
Amortized Cost [5] $ 63,225,000 [4],[13] $ 63,225,000 [6]                    
Fair Value [3],[5] $ 10,954,000 [4],[13] $ 11,562,000 [6]                    
% of Net Assets [5] 0.30% [4],[13] 0.30% [6]                    
Investment, Identifier [Axis]: CP Energy Services Inc., Series A Preferred Stock, Spartan Energy Holdings                        
Schedule of Investments [Line Items]                        
Fair Value $ 26,193,000                      
Investment, Identifier [Axis]: CP IRIS Holdco I, Inc., Building Products, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 10.12% 8.67%                    
Basis spread rate [30],[31],[36] 7.00% 7.00%                    
Floor [30],[31],[36] 0.50% 0.50%                    
Principal Value [30],[31],[36] $ 35,000,000 $ 35,000,000                    
Amortized Cost [30],[31],[36] 35,000,000 35,000,000                    
Fair Value [3],[30],[31],[36] $ 34,669,000 $ 34,697,000                    
% of Net Assets [30],[31],[36] 0.90% 0.80%                    
Investment, Identifier [Axis]: California Street CLO IX Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 11.45% 10.82%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 58,914,000 $ 58,914,000                    
Amortized Cost [12],[37] 42,483,000 42,472,000                    
Fair Value [3],[12],[37] $ 29,652,000 $ 30,078,000                    
% of Net Assets [12],[37] 0.70% 0.70%                    
Investment, Identifier [Axis]: Candle-Lite Company, LLC, Household Products, First Lien Term Loan A                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 8.57% 7.10%                    
Basis spread rate [30],[31] 5.50% 5.50%                    
Floor [30],[31] 1.25% 1.25%                    
Principal Value [30],[31] $ 9,925,000 $ 9,987,000                    
Amortized Cost [30],[31] 9,925,000 9,987,000                    
Fair Value [3],[30],[31] $ 9,925,000 $ 9,987,000                    
% of Net Assets [30],[31] 0.30% 0.20%                    
Investment, Identifier [Axis]: Candle-Lite Company, LLC, Household Products, First Lien Term Loan B                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 12.57% 11.10%                    
Basis spread rate [30],[31] 9.50% 9.50%                    
Floor [30],[31] 1.25% 1.25%                    
Principal Value [30],[31] $ 10,949,000 $ 10,949,000                    
Amortized Cost [30],[31] 10,949,000 10,949,000                    
Fair Value [3],[30],[31] $ 10,949,000 $ 10,949,000                    
% of Net Assets [30],[31] 0.30% 0.30%                    
Investment, Identifier [Axis]: Capstone Logistics Acquisition, Inc., Commercial Services & Supplies, Second Lien Delayed Draw Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 11.87%                      
Basis spread rate [30],[31],[36] 8.75%                      
Floor [30],[31],[36] 1.00%                      
Principal Value [30],[31],[36] $ 8,500,000                      
Amortized Cost [30],[31],[36] 8,256,000                      
Fair Value [3],[30],[31],[36] $ 8,500,000                      
% of Net Assets [30],[31],[36] 0.20%                      
Investment, Identifier [Axis]: Capstone Logistics Acquisition, Inc., Commercial Services & Supplies, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36]   10.42%                    
Basis spread rate [30],[31],[36]   8.75%                    
Floor [30],[31],[36]   1.00%                    
Principal Value [30],[31],[36]   $ 8,500,000                    
Amortized Cost [30],[31],[36]   8,246,000                    
Fair Value [3],[30],[31],[36]   $ 8,500,000                    
% of Net Assets [30],[31],[36]   0.20%                    
Investment, Identifier [Axis]: Carlyle C17 CLO Limited, Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 15.55% 12.57%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 24,870,000 $ 24,870,000                    
Amortized Cost [12],[37] 14,762,000 14,756,000                    
Fair Value [3],[12],[37] $ 13,200,000 $ 13,159,000                    
% of Net Assets [12],[37] 0.30% 0.30%                    
Investment, Identifier [Axis]: Carlyle Global Market Strategies CLO 2014-4-R, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 12.39% 10.02%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 25,533,000 $ 25,533,000                    
Amortized Cost [12],[37] 18,152,000 18,342,000                    
Fair Value [3],[12],[37] $ 15,133,000 $ 15,294,000                    
% of Net Assets [12],[37] 0.40% 0.40%                    
Investment, Identifier [Axis]: Carlyle Global Market Strategies CLO 2016-3, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 12.23% 11.18%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 32,200,000 $ 32,200,000                    
Amortized Cost [12],[37] 29,900,000 29,777,000                    
Fair Value [3],[12],[37] $ 25,644,000 $ 26,223,000                    
% of Net Assets [12],[37] 0.60% 0.60%                    
Investment, Identifier [Axis]: Cent CLO 21 Limited, Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37],[40] 0.00% 0.00%                    
Floor [12],[37],[40] 0.00% 0.00%                    
Principal Value [12],[37],[40] $ 49,552,000 $ 49,552,000                    
Amortized Cost [12],[37],[40] 32,922,000 33,984,000                    
Fair Value [3],[12],[37],[40] $ 24,685,000 $ 26,391,000                    
% of Net Assets [12],[37],[40] 0.60% 0.60%                    
Investment, Identifier [Axis]: Collections Acquisition Company, Inc., Diversified Financial Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 11.82% 10.65%                    
Basis spread rate [30],[31] 8.15% 8.15%                    
Floor [30],[31] 2.50% 2.50%                    
Principal Value [30],[31] $ 36,816,000 $ 36,878,000                    
Amortized Cost [30],[31] 36,816,000 36,878,000                    
Fair Value [3],[30],[31] $ 36,816,000 $ 36,878,000                    
% of Net Assets [30],[31] 0.90% 0.90%                    
Investment, Identifier [Axis]: Columbia Cent CLO 27 Limited, Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 15.79% 15.76%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 48,977,000 $ 48,977,000                    
Amortized Cost [12],[37] 30,453,000 29,834,000                    
Fair Value [3],[12],[37] $ 26,421,000 $ 28,052,000                    
% of Net Assets [12],[37] 0.70% 0.70%                    
Investment, Identifier [Axis]: Credit Central Loan Company, LLC | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 67,457,000 $ 76,935,000               78,023,000    
Investment, Identifier [Axis]: Credit Central Loan Company, LLC - First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Interest, PIK 5.00% 10.00%                    
Investment, Identifier [Axis]: Credit Central Loan Company, LLC, Consumer Finance, Class A Units                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5],[11] 14,867,312 [1],[4],[12] 14,867,312 [6],[7]                    
Amortized Cost [5],[11] $ 19,331,000 [4],[12] $ 19,331,000 [6]                    
Fair Value [3],[5],[11] $ 0 [4],[12] $ 1,103,000 [6]                    
% of Net Assets [5],[11] 0.00% [4],[12] 0.00% [6]                    
Investment, Identifier [Axis]: Credit Central Loan Company, LLC, Consumer Finance, Class P Shares                        
Schedule of Investments [Line Items]                        
Units (in shares) [1],[2],[4],[5],[11],[12] 9,980,481                      
Investment interest rate [4],[5],[11],[12] 12.75%                      
Amortized Cost [4],[5],[11],[12] $ 9,980,000                      
Fair Value [3],[4],[5],[11],[12] $ 0                      
% of Net Assets [4],[5],[11],[12] 0.00%                      
Investment, Identifier [Axis]: Credit Central Loan Company, LLC, Consumer Finance, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [11],[35] 5.00% [4],[12] 10.00% [6]                    
Interest, PIK [11],[35] 5.00% [4],[12] 10.00% [6]                    
Floor [11],[35] 0.00% [4],[12] 0.00% [6]                    
Principal Value [11],[35] $ 67,549,000 [4],[12] $ 75,832,000 [6]                    
Amortized Cost [11],[35] 65,804,000 [4],[12] 73,902,000 [6]                    
Fair Value [3],[11],[35] $ 67,457,000 [4],[12] $ 75,832,000 [6]                    
% of Net Assets [11],[35] 1.80% [4],[12] 1.90% [6]                    
Investment, Identifier [Axis]: Credit Central Loan Company, LLC, Consumer Finance, Net Revenues Interest (25% of Net Revenues)                        
Schedule of Investments [Line Items]                        
Amortized Cost [5],[11] $ 0 [4],[12] $ 0 [6]                    
Fair Value [3],[5],[11] $ 0 [4],[12] $ 0 [6]                    
% of Net Assets [5],[11] 0.00% [4],[12] 0.00% [6]                    
Investment, Identifier [Axis]: Credit Central Senior Subordinated Loan Agreement                        
Schedule of Investments [Line Items]                        
Interest, PIK 10.00%                     20.00%
Investment, Identifier [Axis]: Curo Group Holdings Corp., Consumer Finance, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[36],[39] 7.50% 7.50%                    
Floor [12],[36],[39] 0.00% 0.00%                    
Principal Value [12],[36],[39] $ 47,000,000 $ 47,000,000                    
Amortized Cost [12],[36],[39] 47,028,000 47,029,000                    
Fair Value [3],[12],[36],[39] $ 26,681,000 $ 30,550,000                    
% of Net Assets [12],[36],[39] 0.70% 0.70%                    
Investment, Identifier [Axis]: DRI Holding Inc., Commercial Services & Supplies, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 8.37% 6.92%                    
Basis spread rate [30],[31],[36] 5.25% 5.25%                    
Floor [30],[31],[36] 0.50% 0.50%                    
Principal Value [30],[31],[36] $ 34,161,000 $ 24,938,000                    
Amortized Cost [30],[31],[36] 32,889,000 24,840,000                    
Fair Value [3],[30],[31],[36] $ 33,393,000 $ 24,563,000                    
% of Net Assets [30],[31],[36] 0.80% 0.60%                    
Investment, Identifier [Axis]: DRI Holding Inc., Commercial Services & Supplies, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30] 11.12% 9.67% [31]                    
Basis spread rate [30] 8.00% 8.00% [31]                    
Floor [30] 0.50% 0.50% [31]                    
Principal Value [30] $ 145,000,000 $ 145,000,000 [31]                    
Amortized Cost [30] 145,000,000 145,000,000 [31]                    
Fair Value [3],[30] $ 141,738,000 $ 143,550,000 [31]                    
% of Net Assets [30] 3.60% 3.50% [31]                    
Investment, Identifier [Axis]: DTI Holdco, Inc.                        
Schedule of Investments [Line Items]                        
Fair Value $ 18,089,000                      
Investment, Identifier [Axis]: DTI Holdco, Inc., Professional Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36] 7.33% 6.28%                    
Basis spread rate [30],[36] 4.75% 4.75%                    
Floor [30],[36] 0.75% 0.75%                    
Principal Value [30],[36] $ 18,500,000 $ 18,500,000                    
Amortized Cost [30],[36] 18,152,000 18,139,000                    
Fair Value [3],[30],[36] $ 18,089,000 $ 18,440,000                    
% of Net Assets [30],[36] 0.50% 0.40%                    
Investment, Identifier [Axis]: DTI Holdco, Inc., Professional Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36] 10.33% 9.28%                    
Basis spread rate [30],[36] 7.75% 7.75%                    
Floor [30],[36] 0.75% 0.75%                    
Principal Value [30],[36] $ 75,000,000 $ 75,000,000                    
Amortized Cost [30],[36] 75,000,000 75,000,000                    
Fair Value [3],[30],[36] $ 74,063,000 $ 75,000,000                    
% of Net Assets [30],[36] 1.90% 1.80%                    
Investment, Identifier [Axis]: Dunn Paper, Inc., Paper & Forest Products, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36],[41]   10.31%                    
Basis spread rate [30],[36],[41]   9.25%                    
Floor [30],[36],[41]   1.00%                    
Principal Value [30],[36],[41]   $ 11,500,000                    
Amortized Cost [30],[36],[41]   11,445,000                    
Fair Value [3],[30],[36],[41]   $ 4,952,000                    
% of Net Assets [30],[36],[41]   0.10%                    
Investment, Identifier [Axis]: Easy Gardener Products, Inc., Household Durable, Class A Units of EZG Holdings, LLC                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5] 200 [1] 200 [7]                    
Floor [5] 0.00%                      
Principal Value [5] $ 0                      
Amortized Cost [5] 313,000 $ 313,000                    
Fair Value [3],[5] $ 0 $ 781,000                    
% of Net Assets [5] 0.00% 0.00%                    
Investment, Identifier [Axis]: Easy Gardener Products, Inc., Household Durable, Class B Units of EZG Holdings, LLC                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5] 12,525 [1] 12,525 [7]                    
Floor [5] 0.00%                      
Principal Value [5] $ 0                      
Amortized Cost [5] 1,688,000 $ 1,688,000                    
Fair Value [3],[5] $ 0 $ 2,832,000                    
% of Net Assets [5] 0.00% 0.10%                    
Investment, Identifier [Axis]: Echelon Transportation, LLC | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 62,022,000 $ 65,766,000               84,240,000    
Investment, Identifier [Axis]: Echelon Transportation, LLC - First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Interest, PIK 6.00%         6.00%            
Investment, Identifier [Axis]: Echelon Transportation, LLC, Aerospace & Defense, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30] 6.37% [4] 6.00% [6]                    
Basis spread rate [30] 4.00% [4] 4.00% [6]                    
Floor [30] 2.00% [4] 2.00% [6]                    
Principal Value [30] $ 54,797,000 [4] $ 53,209,000 [6]                    
Amortized Cost [30] 54,797,000 [4] 53,209,000 [6]                    
Fair Value [3],[30] $ 54,797,000 [4] $ 53,209,000 [6]                    
% of Net Assets [30] 1.40% [4] 1.30% [6]                    
Investment, Identifier [Axis]: Echelon Transportation, LLC, Aerospace & Defense, Membership Interest                        
Schedule of Investments [Line Items]                        
Amortized Cost [5] $ 22,738,000 [4] $ 22,738,000 [6]                    
Fair Value [3],[5] $ 0 [4] $ 0 [6]                    
% of Net Assets [5] 0.00% [4] 0.00% [6]                    
Investment, Identifier [Axis]: Echelon Transportation, LLC, Aerospace & Defense, Preferred Units                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5] 32,842,586 [1],[4] 32,842,586 [6],[7]                    
Amortized Cost [5] $ 32,843,000 [4] $ 32,843,000 [6]                    
Fair Value [3],[5] $ 7,225,000 [4] $ 12,557,000 [6]                    
% of Net Assets [5] 0.20% [4] 0.30% [6]                    
Investment, Identifier [Axis]: Engine Group, Inc., Media, Class B Common Units                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5],[36] 1,039,554 [1] 1,039,554 [7],[25]                    
Floor [5],[36] 0.00%                      
Principal Value [5],[36] $ 0                      
Amortized Cost [5],[36] 26,991,000 $ 26,991,000 [25]                    
Fair Value [3],[5],[36] $ 87,000 $ 0 [25]                    
% of Net Assets [5],[36] 0.00% 0.00% [25]                    
Investment, Identifier [Axis]: Engine Group, Inc., Media, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36] 7.56% 6.42% [25]                    
Basis spread rate [30],[36] 4.75% 4.75% [25]                    
Floor [30],[36] 1.00% 1.00% [25]                    
Principal Value [30],[36] $ 3,551,000 $ 3,551,000 [25]                    
Amortized Cost [30],[36] 3,551,000 3,551,000 [25]                    
Fair Value [3],[30],[36] $ 3,327,000 $ 3,400,000 [25]                    
% of Net Assets [30],[36] 0.10% 0.10% [25]                    
Investment, Identifier [Axis]: Engineered Machinery Holdings, Inc., Machinery, Incremental Amendment No. 2 Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 10.17% 8.75%                    
Basis spread rate [30],[31],[36] 6.50% 6.50%                    
Floor [30],[31],[36] 0.75% 0.75%                    
Principal Value [30],[31],[36] $ 5,000,000 $ 5,000,000                    
Amortized Cost [30],[31],[36] 4,983,000 4,982,000                    
Fair Value [3],[30],[31],[36] $ 4,934,000 $ 4,897,000                    
% of Net Assets [30],[31],[36] 0.10% 0.10%                    
Investment, Identifier [Axis]: Engineered Machinery Holdings, Inc., Machinery, Incremental Amendment No. 3 Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 9.67% 8.25%                    
Basis spread rate [30],[31],[36] 6.00% 6.00%                    
Floor [30],[31],[36] 0.75% 0.75%                    
Principal Value [30],[31],[36] $ 5,000,000 $ 5,000,000                    
Amortized Cost [30],[31],[36] 5,000,000 5,000,000                    
Fair Value [3],[30],[31],[36] $ 4,815,000 $ 4,772,000                    
% of Net Assets [30],[31],[36] 0.10% 0.10%                    
Investment, Identifier [Axis]: Enseo Acquisition, Inc., IT Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 11.67% 10.25%                    
Basis spread rate [30],[31] 8.00% 8.00%                    
Floor [30],[31] 1.00% 1.00%                    
Principal Value [30],[31] $ 54,313,000 $ 54,450,000                    
Amortized Cost [30],[31] 54,313,000 54,450,000                    
Fair Value [3],[30],[31] $ 54,313,000 $ 54,450,000                    
% of Net Assets [30],[31] 1.40% 1.30%                    
Investment, Identifier [Axis]: Excelitas Technologies Corp. (f/k/a/ EXC Holdings III Corp.), Technology Hardware, Storage & Peripherals, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36]   8.50%                    
Basis spread rate [30],[31],[36]   7.50%                    
Floor [30],[31],[36]   1.00%                    
Principal Value [30],[31],[36]   $ 12,500,000                    
Amortized Cost [30],[31],[36]   12,447,000                    
Fair Value [3],[30],[31],[36]   $ 12,398,000                    
% of Net Assets [30],[31],[36]   0.30%                    
Investment, Identifier [Axis]: Eze Castle Integration, Inc. (f/k/a/ H.I.G. ECI Merger Sub, Inc.), IT Services, First Lien Delayed Draw Term Loan                        
Schedule of Investments [Line Items]                        
Uncommitted funds [1],[2],[30],[38] $ 1,786,000                      
Investment interest rate [30],[38] 11.24%                      
Basis spread rate [30],[38] 8.50%                      
Floor [30],[38] 1.50%                      
Principal Value [30],[38] $ 0                      
Amortized Cost [30],[38] 0                      
Fair Value [3],[30],[38] $ 0                      
% of Net Assets [30],[38] 0.00%                      
Investment, Identifier [Axis]: Eze Castle Integration, Inc. (f/k/a/ H.I.G. ECI Merger Sub, Inc.), IT Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 11.24%                      
Basis spread rate [30],[31] 8.50%                      
Floor [30],[31] 1.50%                      
Principal Value [30],[31] $ 46,620,000                      
Amortized Cost [30],[31] 46,620,000                      
Fair Value [3],[30],[31] $ 46,620,000                      
% of Net Assets [30],[31] 1.20%                      
Investment, Identifier [Axis]: Eze Castle Integration, Inc., IT Services, First Lien Delayed Draw Term Loan                        
Schedule of Investments [Line Items]                        
Uncommitted funds [2],[7],[30],[38]   $ 1,786,000                    
Investment interest rate [30],[38]   10.00%                    
Basis spread rate [30],[38]   8.50%                    
Floor [30],[38]   1.50%                    
Principal Value [30],[38]   $ 0                    
Amortized Cost [30],[38]   0                    
Fair Value [3],[30],[38]   $ 0                    
% of Net Assets [30],[38]   0.00%                    
Investment, Identifier [Axis]: Eze Castle Integration, Inc., IT Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31]   10.00%                    
Basis spread rate [30],[31]   8.50%                    
Floor [30],[31]   1.50%                    
Principal Value [30],[31]   $ 46,740,000                    
Amortized Cost [30],[31]   46,740,000                    
Fair Value [3],[30],[31]   $ 46,740,000                    
% of Net Assets [30],[31]   1.10%                    
Investment, Identifier [Axis]: First Brands Group, Auto Components, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 8.37% 6.29%                    
Basis spread rate [30],[31],[36] 5.00% 5.00%                    
Floor [30],[31],[36] 1.00% 1.00%                    
Principal Value [30],[31],[36] $ 22,468,000 $ 22,525,000                    
Amortized Cost [30],[31],[36] 22,348,000 22,388,000                    
Fair Value [3],[30],[31],[36] $ 22,251,000 $ 22,210,000                    
% of Net Assets [30],[31],[36] 0.60% 0.50%                    
Investment, Identifier [Axis]: First Brands Group, Auto Components, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 11.87% 9.74%                    
Basis spread rate [30],[31],[36] 8.50% 8.50%                    
Floor [30],[31],[36] 1.00% 1.00%                    
Principal Value [30],[31],[36] $ 37,000,000 $ 37,000,000                    
Amortized Cost [30],[31],[36] 36,546,000 36,503,000                    
Fair Value [3],[30],[31],[36] $ 37,000,000 $ 37,000,000                    
% of Net Assets [30],[31],[36] 0.90% 0.90%                    
Investment, Identifier [Axis]: First Tower Finance Company LLC | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 605,282,000 $ 607,283,000               592,356,000    
Investment, Identifier [Axis]: First Tower Finance Company LLC - First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Interest, PIK 12.00% 12.00%                    
Investment, Identifier [Axis]: First Tower Finance Company LLC, Consumer Finance, Class A Units                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5],[14] 95,709,910 [1],[4],[12] 95,709,910 [6],[7]                    
Amortized Cost [5],[14] $ 31,146,000 [4],[12] $ 31,146,000 [6]                    
Fair Value [3],[5],[14] $ 239,480,000 [4],[12] $ 251,058,000 [6]                    
% of Net Assets [5],[14] 6.00% [4],[12] 6.10% [6]                    
Investment, Identifier [Axis]: First Tower Finance Company LLC, Consumer Finance, First Lien Term Loan to First Tower, LLC                        
Schedule of Investments [Line Items]                        
Investment interest rate [14],[35] 10.00% [4],[12] 10.00% [6]                    
Interest, PIK [14],[35] 12.00% [4],[12] 12.00% [6]                    
Floor [14],[35] 0.00% [4],[12] 0.00% [6]                    
Principal Value [14],[35] $ 365,802,000 [4],[12] $ 356,225,000 [6]                    
Amortized Cost [14],[35] 365,802,000 [4],[12] 356,225,000 [6]                    
Fair Value [3],[14],[35] $ 365,802,000 [4],[12] $ 356,225,000 [6]                    
% of Net Assets [14],[35] 9.30% [4],[12] 8.70% [6]                    
Investment, Identifier [Axis]: Freedom Marine Solutions, LLC | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 13,312,000 $ 13,899,000               11,717,000    
Investment, Identifier [Axis]: Freedom Marine Solutions, LLC, Energy Equipment & Services, Membership Interest                        
Schedule of Investments [Line Items]                        
Amortized Cost [5],[8] 45,492,000 [4] 45,492,000 [6]                    
Fair Value [3],[5],[8] $ 13,312,000 [4] $ 13,899,000 [6]                    
% of Net Assets [5],[8] 0.30% [4] 0.30% [6]                    
Investment, Identifier [Axis]: Galaxy XV CLO, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 13.31% 12.12%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 50,525,000 $ 50,525,000                    
Amortized Cost [12],[37] 33,614,000 33,868,000                    
Fair Value [3],[12],[37] $ 26,395,000 $ 26,924,000                    
% of Net Assets [12],[37] 0.60% 0.80%                    
Investment, Identifier [Axis]: Galaxy XXVII CLO, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 14.95% 11.34%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 24,575,000 $ 24,575,000                    
Amortized Cost [12],[37] 16,051,000 15,963,000                    
Fair Value [3],[12],[37] $ 11,970,000 $ 11,898,000                    
% of Net Assets [12],[37] 0.30% 0.30%                    
Investment, Identifier [Axis]: Galaxy XXVIII CLO, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 11.05% 7.95%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 39,905,000 $ 39,905,000                    
Amortized Cost [12],[37] 26,835,000 27,017,000                    
Fair Value [3],[12],[37] $ 17,819,000 $ 17,407,000                    
% of Net Assets [12],[37] 0.40% 0.40%                    
Investment, Identifier [Axis]: Halcyon Loan Advisors Funding 2012-1 Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37],[40] 0.00% 0.00%                    
Floor [12],[37],[40] 0.00% 0.00%                    
Principal Value [12],[37],[40] $ 23,188,000 $ 23,188,000                    
Amortized Cost [12],[37],[40] 3,704,000 3,704,000                    
Fair Value [3],[12],[37],[40] $ 6,000 $ 6,000                    
% of Net Assets [12],[37],[40] 0.00% 0.00%                    
Investment, Identifier [Axis]: Halcyon Loan Advisors Funding 2013-1 Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37],[40] 0.00% 0.00%                    
Floor [12],[37],[40] 0.00% 0.00%                    
Principal Value [12],[37],[40] $ 40,400,000 $ 40,400,000                    
Amortized Cost [12],[37],[40] 19,983,000 19,984,000                    
Fair Value [3],[12],[37],[40] $ 18,000 $ 22,000                    
% of Net Assets [12],[37],[40] 0.00% 0.00%                    
Investment, Identifier [Axis]: Halcyon Loan Advisors Funding 2014-1 Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37],[40] 0.00% 0.00%                    
Floor [12],[37],[40] 0.00% 0.00%                    
Principal Value [12],[37],[40] $ 24,500,000 $ 24,500,000                    
Amortized Cost [12],[37],[40] 11,822,000 11,822,000                    
Fair Value [3],[12],[37],[40] $ 34,000 $ 37,000                    
% of Net Assets [12],[37],[40] 0.00% 0.00%                    
Investment, Identifier [Axis]: Halcyon Loan Advisors Funding 2014-2 Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37],[40] 0.00% 0.00%                    
Floor [12],[37],[40] 0.00% 0.00%                    
Principal Value [12],[37],[40] $ 41,164,000 $ 41,164,000                    
Amortized Cost [12],[37],[40] 21,321,000 21,321,000                    
Fair Value [3],[12],[37],[40] $ 44,000 $ 53,000                    
% of Net Assets [12],[37],[40] 0.00% 0.00%                    
Investment, Identifier [Axis]: Halcyon Loan Advisors Funding 2015-3 Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37],[40] 0.00% 0.00%                    
Floor [12],[37],[40] 0.00% 0.00%                    
Principal Value [12],[37],[40] $ 39,598,000 $ 39,598,000                    
Amortized Cost [12],[37],[40] 29,556,000 29,557,000                    
Fair Value [3],[12],[37],[40] $ 203,000 $ 234,000                    
% of Net Assets [12],[37],[40] 0.00% 0.00%                    
Investment, Identifier [Axis]: HarbourView CLO VII-R, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 1.80% 0.00% [40]                    
Floor [12],[37] 0.00% 0.00% [40]                    
Principal Value [12],[37] $ 19,025,000 $ 19,025,000 [40]                    
Amortized Cost [12],[37] 13,083,000 13,024,000 [40]                    
Fair Value [3],[12],[37] $ 6,650,000 $ 6,585,000 [40]                    
% of Net Assets [12],[37] 0.20% 0.30% [40]                    
Investment, Identifier [Axis]: Help/Systems Holdings, Inc., Software, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 9.88% 7.56%                    
Basis spread rate [30],[31],[36] 6.75% 6.75%                    
Floor [30],[31],[36] 0.75% 0.75%                    
Principal Value [30],[31],[36] $ 52,500,000 $ 52,500,000                    
Amortized Cost [30],[31],[36] 52,309,000 52,295,000                    
Fair Value [3],[30],[31],[36] $ 50,013,000 $ 52,500,000                    
% of Net Assets [30],[31],[36] 1.30% 1.30%                    
Investment, Identifier [Axis]: InterDent, Inc. | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 407,534,000 $ 406,194,000               412,339,000    
Investment, Identifier [Axis]: InterDent, Inc. - First Lien Term Loan B                        
Schedule of Investments [Line Items]                        
Interest, PIK 12.00% 12.00%                    
Investment, Identifier [Axis]: InterDent, Inc., Health Care Providers & Services, Common Stock                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5] 99,900 [1],[4] 99,900 [6],[7]                    
Amortized Cost [5] $ 45,118,000 [4] $ 45,118,000 [6]                    
Fair Value [3],[5] $ 129,105,000 [4] $ 132,746,000 [6]                    
% of Net Assets [5] 3.30% [4] 3.20% [6]                    
Investment, Identifier [Axis]: InterDent, Inc., Health Care Providers & Services, First Lien Term Loan A                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 8.62% [4] 7.17% [6]                    
Basis spread rate [30],[31] 5.50% [4] 5.50% [6]                    
Floor [30],[31] 1.00% [4] 1.00% [6]                    
Principal Value [30],[31] $ 96,773,000 [4] $ 96,773,000 [6]                    
Amortized Cost [30],[31] 96,773,000 [4] 96,773,000 [6]                    
Fair Value [3],[30],[31] $ 96,773,000 [4] $ 96,773,000 [6]                    
% of Net Assets [30],[31] 2.40% [4] 2.40% [6]                    
Investment, Identifier [Axis]: InterDent, Inc., Health Care Providers & Services, First Lien Term Loan A/B                        
Schedule of Investments [Line Items]                        
Investment interest rate [30] 17.77% [4],[31] 16.65% [6]                    
Basis spread rate [30] 14.65% [4],[31] 14.65% [6]                    
Floor [30] 2.00% [4],[31] 2.00% [6]                    
Principal Value [30] $ 14,249,000 [4],[31] $ 14,249,000 [6]                    
Amortized Cost [30] 14,249,000 [4],[31] 14,249,000 [6]                    
Fair Value [3],[30] $ 14,249,000 [4],[31] $ 14,249,000 [6]                    
% of Net Assets [30] 0.40% [4],[31] 0.30% [6]                    
Investment, Identifier [Axis]: InterDent, Inc., Health Care Providers & Services, First Lien Term Loan B                        
Schedule of Investments [Line Items]                        
Interest, PIK [35] 12.00% [4] 12.00% [6]                    
Floor [35] 0.00% [4] 0.00% [6]                    
Principal Value [35] $ 167,407,000 [4] $ 162,426,000 [6]                    
Amortized Cost [35] 167,407,000 [4] 162,426,000 [6]                    
Fair Value [3],[35] $ 167,407,000 [4] $ 162,426,000 [6]                    
% of Net Assets [35] 4.20% [4] 3.90% [6]                    
Investment, Identifier [Axis]: Interventional Management Services, LLC, Health Care Providers & Service, First Lien Revolving Line of Credit                        
Schedule of Investments [Line Items]                        
Uncommitted funds [2],[30],[38] $ 5,000,000 [1] $ 5,000,000 [7]                    
Investment interest rate [30],[38] 12.67% 11.25%                    
Basis spread rate [30],[38] 9.00% 9.00%                    
Floor [30],[38] 1.00% 1.00%                    
Principal Value [30],[38] $ 5,000,000 $ 5,000,000                    
Amortized Cost [30],[38] 5,000,000 5,000,000                    
Fair Value [3],[30],[38] $ 4,877,000 $ 4,964,000                    
% of Net Assets [30],[38] 0.10% 0.10%                    
Investment, Identifier [Axis]: Interventional Management Services, LLC, Health Care Providers & Service, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 12.67% 11.25%                    
Basis spread rate [30],[31] 9.00% 9.00%                    
Floor [30],[31] 1.00% 1.00%                    
Principal Value [30],[31] $ 68,033,000 $ 68,385,000                    
Amortized Cost [30],[31] 68,033,000 68,385,000                    
Fair Value [3],[30],[31] $ 66,362,000 $ 67,897,000                    
% of Net Assets [30],[31] 1.70% 1.60%                    
Investment, Identifier [Axis]: Jefferson Mill CLO Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 7.55% 5.45%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 23,594,000 $ 23,594,000                    
Amortized Cost [12],[37] 17,935,000 18,172,000                    
Fair Value [3],[12],[37] $ 12,734,000 $ 12,879,000                    
% of Net Assets [12],[37] 0.30% 0.40%                    
Investment, Identifier [Axis]: K&N Parent, Inc.                        
Schedule of Investments [Line Items]                        
Fair Value $ 14,075,000                      
Investment, Identifier [Axis]: K&N Parent, Inc., Auto Component, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36] 11.87% 11.00%                    
Basis spread rate [30],[36] 8.75% 8.75%                    
Floor [30],[36] 1.00% 1.00%                    
Principal Value [30],[36] $ 25,887,000 $ 25,887,000                    
Amortized Cost [30],[36] 25,718,000 25,697,000                    
Fair Value [3],[30],[36] $ 14,075,000 $ 24,337,000                    
% of Net Assets [30],[36] 0.40% 0.60%                    
Investment, Identifier [Axis]: KM2 Solutions LLC, IT Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 11.67% 10.25%                    
Basis spread rate [30],[31] 8.00% 8.00%                    
Floor [30],[31] 1.00% 1.00%                    
Principal Value [30],[31] $ 23,863,000 $ 23,925,000                    
Amortized Cost [30],[31] 23,863,000 23,925,000                    
Fair Value [3],[30],[31] $ 23,863,000 $ 23,925,000                    
% of Net Assets [30],[31] 0.60% 0.60%                    
Investment, Identifier [Axis]: KNS Acquisition Corp., Food & Staples Retailing, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36]   8.50%                    
Basis spread rate [30],[36]   6.25%                    
Floor [30],[36]   0.75%                    
Principal Value [30],[36]   $ 9,937,000                    
Amortized Cost [30],[36]   9,262,000                    
Fair Value [3],[30],[36]   $ 9,440,000                    
% of Net Assets [30],[36]   0.20%                    
Investment, Identifier [Axis]: Kickapoo Ranch Pet Resort | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 3,833,000 $ 3,833,000               3,833,000    
Investment, Identifier [Axis]: Kickapoo Ranch Pet Resort, Diversified Consumer Services, Membership Interest                        
Schedule of Investments [Line Items]                        
Amortized Cost 2,378,000 [4] 2,378,000 [6]                    
Fair Value [3] $ 3,833,000 [4] $ 3,833,000 [6]                    
% of Net Assets 0.10% [4] 0.10% [6]                    
Investment, Identifier [Axis]: LCM XIV Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 8.37% 7.15%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 49,934,000 $ 49,934,000                    
Amortized Cost [12],[37] 25,270,000 25,787,000                    
Fair Value [3],[12],[37] $ 18,664,000 $ 19,385,000                    
% of Net Assets [12],[37] 0.50% 0.50%                    
Investment, Identifier [Axis]: LGC US FINCO, LLC, Machinery, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 9.62% 8.17%                    
Basis spread rate [30],[31],[36] 6.50% 6.50%                    
Floor [30],[31],[36] 1.00% 1.00%                    
Principal Value [30],[31],[36] $ 30,476,000 $ 30,638,000                    
Amortized Cost [30],[31],[36] 29,934,000 30,053,000                    
Fair Value [3],[30],[31],[36] $ 28,898,000 $ 29,609,000                    
% of Net Assets [30],[31],[36] 0.70% 0.70%                    
Investment, Identifier [Axis]: MITY, Inc. | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 57,828,000 $ 59,999,000               49,680,000    
Investment, Identifier [Axis]: MITY, Inc. - First Lien Term Loan A                        
Schedule of Investments [Line Items]                        
Interest, PIK   0.00%                 10.00%  
Investment, Identifier [Axis]: MITY, Inc. - First Lien Term Loan B                        
Schedule of Investments [Line Items]                        
Interest, PIK 10.00% 10.00%                 20.00%  
Investment, Identifier [Axis]: MITY, Inc., Commercial Services & Supplies, Common Stock                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5],[15] 42,053 [1],[4] 42,053 [6],[7]                    
Amortized Cost [5],[15] $ 27,349,000 [4] $ 27,349,000 [6]                    
Fair Value [3],[5],[15] $ 280,000 [4] $ 1,878,000 [6]                    
% of Net Assets [5],[15] 0.00% [4] 0.00% [6]                    
Investment, Identifier [Axis]: MITY, Inc., Commercial Services & Supplies, First Lien Term Loan A                        
Schedule of Investments [Line Items]                        
Investment interest rate [15],[30] 10.67% [4] 10.00% [6],[35]                    
Basis spread rate [15],[30] 7.00% [4] 7.00% [6],[35]                    
Floor [15],[30] 3.00% [4] 3.00% [6],[35]                    
Principal Value [15],[30] $ 31,944,000 [4] $ 32,210,000 [6],[35]                    
Amortized Cost [15],[30] 31,944,000 [4] 32,210,000 [6],[35]                    
Fair Value [3],[15],[30] $ 31,944,000 [4] $ 32,210,000 [6],[35]                    
% of Net Assets [15],[30] 0.80% [4] 0.80% [6],[35]                    
Investment, Identifier [Axis]: MITY, Inc., Commercial Services & Supplies, First Lien Term Loan B                        
Schedule of Investments [Line Items]                        
Investment interest rate [15],[30],[35] 10.67% [4] 10.00% [6]                    
Basis spread rate [15],[30],[35] 7.00% [4] 7.00% [6]                    
Interest, PIK [15],[30],[35] 10.00% [4] 10.00% [6]                    
Floor [15],[30],[35] 3.00% [4] 3.00% [6]                    
Principal Value [15],[30],[35] $ 18,404,000 [4] $ 18,711,000 [6]                    
Amortized Cost [15],[30],[35] 18,404,000 [4] 18,711,000 [6]                    
Fair Value [3],[15],[30],[35] $ 18,404,000 [4] $ 18,711,000 [6]                    
% of Net Assets [15],[30],[35] 0.50% [4] 0.50% [6]                    
Investment, Identifier [Axis]: MITY, Inc., Commercial Services & Supplies, Unsecured Note to Broda Enterprises ULC                        
Schedule of Investments [Line Items]                        
Investment interest rate [15] 10.00% [4],[12] 10.00% [6]                    
Floor [15] 0.00% [4],[12] 0.00% [6]                    
Principal Value [15] $ 7,200,000 [4],[12] $ 7,200,000 [6]                    
Amortized Cost [15] 7,200,000 [4],[12] 7,200,000 [6]                    
Fair Value [3],[15] $ 7,200,000 [4],[12] $ 7,200,000 [6]                    
% of Net Assets [15] 0.20% [4],[12] 0.20% [6]                    
Investment, Identifier [Axis]: Magnate Worldwide, LLC, Air Freight & Logistics, First Lien Delayed Draw Term Loan                        
Schedule of Investments [Line Items]                        
Uncommitted funds [2],[30],[36],[38] $ 2,357,000 [1] $ 2,357,000 [7]                    
Investment interest rate [30],[36],[38] 9.17% 7.75%                    
Basis spread rate [30],[36],[38] 5.50% 5.50%                    
Floor [30],[36],[38] 0.75% 0.75%                    
Principal Value [30],[36],[38] $ 0 $ 0                    
Amortized Cost [30],[36],[38] 0 0                    
Fair Value [3],[30],[36],[38] $ 0 $ 0                    
% of Net Assets [30],[36],[38] 0.00% 0.00%                    
Investment, Identifier [Axis]: Magnate Worldwide, LLC, Air Freight & Logistics, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 9.17% 7.75%                    
Basis spread rate [30],[31],[36] 5.50% 5.50%                    
Floor [30],[31],[36] 0.75% 0.75%                    
Principal Value [30],[31],[36] $ 30,490,000 $ 30,490,000                    
Amortized Cost [30],[31],[36] 30,490,000 30,490,000                    
Fair Value [3],[30],[31],[36] $ 30,490,000 $ 30,490,000                    
% of Net Assets [30],[31],[36] 0.80% 0.70%                    
Investment, Identifier [Axis]: Magnate Worldwide, LLC, Air Freight & Logistics, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 12.17% 10.75%                    
Basis spread rate [30],[31],[36] 8.50% 8.50%                    
Floor [30],[31],[36] 0.75% 0.75%                    
Principal Value [30],[31],[36] $ 95,000,000 $ 95,000,000                    
Amortized Cost [30],[31],[36] 95,000,000 95,000,000                    
Fair Value [3],[30],[31],[36] $ 95,000,000 $ 95,000,000                    
% of Net Assets [30],[31],[36] 2.40% 2.30%                    
Investment, Identifier [Axis]: Mamba Purchaser, Inc., Health Care Providers & Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 9.55% 8.10%                    
Basis spread rate [30],[31],[36] 6.50% 6.50%                    
Floor [30],[31],[36] 0.50% 0.50%                    
Principal Value [30],[31],[36] $ 23,000,000 $ 23,000,000                    
Amortized Cost [30],[31],[36] 22,846,000 22,840,000                    
Fair Value [3],[30],[31],[36] $ 23,000,000 $ 23,000,000                    
% of Net Assets [30],[31],[36] 0.60% 0.60%                    
Investment, Identifier [Axis]: Medical Solutions Holdings, Inc., Health Care Providers & Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 9.88% 9.88%                    
Basis spread rate [30],[31],[36] 7.00% 7.00%                    
Floor [30],[31],[36] 0.50% 0.50%                    
Principal Value [30],[31],[36] $ 54,463,000 $ 53,518,000                    
Amortized Cost [30],[31],[36] 54,423,000 53,504,000                    
Fair Value [3],[30],[31],[36] $ 54,463,000 $ 53,518,000                    
% of Net Assets [30],[31],[36] 1.40% 1.30%                    
Investment, Identifier [Axis]: Medusind Acquisition, Inc., Health Care Providers & Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 10.19% 8.81% [26]                    
Basis spread rate [30],[31] 6.50% 6.50% [26]                    
Floor [30],[31] 1.00% 1.00% [26]                    
Principal Value [30],[31] $ 23,447,000 $ 23,635,000 [26]                    
Amortized Cost [30],[31] 23,320,000 23,488,000 [26]                    
Fair Value [3],[30],[31] $ 23,447,000 $ 23,635,000 [26]                    
% of Net Assets [30],[31] 0.60% 0.60% [26]                    
Investment, Identifier [Axis]: Mountain View CLO 2013-I Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 0.00% [40] 2.05%                    
Floor [12],[37] 0.00% [40] 0.00%                    
Principal Value [12],[37] $ 43,650,000 [40] $ 43,650,000                    
Amortized Cost [12],[37] 24,503,000 [40] 25,461,000                    
Fair Value [3],[12],[37] $ 14,982,000 [40] $ 15,560,000                    
% of Net Assets [12],[37] 0.40% [40] 0.40%                    
Investment, Identifier [Axis]: Mountain View CLO IX Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 9.86% 10.29%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 47,830,000 $ 47,830,000                    
Amortized Cost [12],[37] 24,657,000 25,333,000                    
Fair Value [3],[12],[37] $ 21,417,000 $ 22,510,000                    
% of Net Assets [12],[37] 0.50% 0.60%                    
Investment, Identifier [Axis]: NMMB, Inc. | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 114,694,000 $ 109,943,000               46,888,000    
Investment, Identifier [Axis]: NMMB, Inc., Media, Common Stock                        
Schedule of Investments [Line Items]                        
Units (in shares) [18] 21,418 [1],[2],[4] 21,418 [6]                    
Amortized Cost [18] $ 0 [4] $ 0 [6]                    
Fair Value [18] $ 84,971,000 [3],[4] $ 80,220,000 [6]                    
% of Net Assets [18] 2.10% [4] 2.00% [6]                    
Investment, Identifier [Axis]: NMMB, Inc., Media, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [18],[30],[31] 12.17% [4] 10.75% [6]                    
Basis spread rate [18],[30],[31] 8.50% [4] 8.50% [6]                    
Floor [18],[30],[31] 2.00% [4] 2.00% [6]                    
Principal Value [18],[30],[31] $ 29,723,000 [4] $ 29,723,000 [6]                    
Amortized Cost [18],[30],[31] 29,723,000 [4] 29,723,000 [6]                    
Fair Value [18],[30],[31] $ 29,723,000 [3],[4] $ 29,723,000 [6]                    
% of Net Assets [18],[30],[31] 0.70% [4] 0.70% [6]                    
Investment, Identifier [Axis]: NPRC and Subsidiaries                        
Schedule of Investments [Line Items]                        
Principal Value $ 74,000,000                      
Investment, Identifier [Axis]: National Property REIT Corp. | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 1,632,298,000 $ 1,615,737,000               1,189,755,000    
Investment, Identifier [Axis]: National Property REIT Corp. - First Lien Term Loan A                        
Schedule of Investments [Line Items]                        
Interest, PIK 3.53% 3.53%                    
Investment, Identifier [Axis]: National Property REIT Corp. - First Lien Term Loan B                        
Schedule of Investments [Line Items]                        
Interest, PIK 5.50% 5.50%                    
Investment, Identifier [Axis]: National Property REIT Corp. - First Lien Term Loan C                        
Schedule of Investments [Line Items]                        
Interest, PIK 2.25% 2.25%                    
Investment, Identifier [Axis]: National Property REIT Corp. - First Lien Term Loan D                        
Schedule of Investments [Line Items]                        
Interest, PIK 2.50% 2.50%                    
Investment, Identifier [Axis]: National Property REIT Corp., Equity Real Estate Investment Trusts (REITs) / Online Lending / Structured Finance, Common Stock                        
Schedule of Investments [Line Items]                        
Units (in shares) [16],[42] 3,334,895 [1],[2],[4],[5] 3,334,895 [6]                    
Amortized Cost [16],[42] $ 15,430,000 [4],[5] $ 15,830,000 [6]                    
Fair Value [16],[42] $ 700,447,000 [3],[4],[5] $ 707,622,000 [6]                    
% of Net Assets [16],[42] 17.80% [4],[5] 17.30% [6]                    
Investment, Identifier [Axis]: National Property REIT Corp., Equity Real Estate Investment Trusts (REITs) / Online Lending / Structured Finance, First Lien Term Loan A                        
Schedule of Investments [Line Items]                        
Investment interest rate [16],[30],[35] 5.11% [4] 4.44% [6]                    
Basis spread rate [16],[30],[35] 1.44% [4] 1.44% [6]                    
Interest, PIK [16],[30],[35] 3.53% [4] 3.53% [6]                    
Floor [16],[30],[35] 3.00% [4] 3.00% [6]                    
Principal Value [16],[30],[35] $ 468,161,000 [4] $ 448,061,000 [6]                    
Amortized Cost [16],[30],[35] 468,161,000 [4] 448,061,000 [6]                    
Fair Value [16],[30],[35] $ 468,161,000 [3],[4] $ 448,061,000 [6]                    
% of Net Assets [16],[30],[35] 11.80% [4] 10.90% [6]                    
Investment, Identifier [Axis]: National Property REIT Corp., Equity Real Estate Investment Trusts (REITs) / Online Lending / Structured Finance, First Lien Term Loan B                        
Schedule of Investments [Line Items]                        
Investment interest rate [16],[30],[35] 5.67% [4] 5.00% [6]                    
Basis spread rate [16],[30],[35] 2.00% [4] 2.00% [6]                    
Interest, PIK [16],[30],[35] 5.50% [4] 5.50% [6]                    
Floor [16],[30],[35] 3.00% [4] 3.00% [6]                    
Principal Value [16],[30],[35] $ 25,080,000 [4] $ 29,080,000 [6]                    
Amortized Cost [16],[30],[35] 25,080,000 [4] 29,080,000 [6]                    
Fair Value [16],[30],[35] $ 25,058,000 [3],[4] $ 29,080,000 [6]                    
% of Net Assets [16],[30],[35] 0.60% [4] 0.70% [6]                    
Investment, Identifier [Axis]: National Property REIT Corp., Equity Real Estate Investment Trusts (REITs) / Online Lending / Structured Finance, First Lien Term Loan C                        
Schedule of Investments [Line Items]                        
Investment interest rate [16],[30],[35] 13.67% [4] 12.25% [6]                    
Basis spread rate [16],[30],[35] 10.00% [4] 10.00% [6]                    
Interest, PIK [16],[30],[35] 2.25% [4] 2.25% [6]                    
Floor [16],[30],[35] 1.00% [4] 1.00% [6]                    
Principal Value [16],[30],[35] $ 196,200,000 [4] $ 186,800,000 [6]                    
Amortized Cost [16],[30],[35] 196,200,000 [4] 186,800,000 [6]                    
Fair Value [16],[30],[35] $ 194,510,000 [3],[4] $ 186,800,000 [6]                    
% of Net Assets [16],[30],[35] 4.90% [4] 4.50% [6]                    
Investment, Identifier [Axis]: National Property REIT Corp., Equity Real Estate Investment Trusts (REITs) / Online Lending / Structured Finance, First Lien Term Loan D                        
Schedule of Investments [Line Items]                        
Investment interest rate [16],[30],[35] 4.17% [4] 3.50% [6]                    
Basis spread rate [16],[30],[35] 0.50% [4] 0.50% [6]                    
Interest, PIK [16],[30],[35] 2.50% [4] 2.50% [6]                    
Floor [16],[30],[35] 3.00% [4] 3.00% [6]                    
Principal Value [16],[30],[35] $ 183,425,000 [4] $ 183,425,000 [6]                    
Amortized Cost [16],[30],[35] 183,425,000 [4] 183,425,000 [6]                    
Fair Value [16],[30],[35] $ 183,425,000 [3],[4] $ 183,425,000 [6]                    
% of Net Assets [16],[30],[35] 4.60% [4] 4.50% [6]                    
Investment, Identifier [Axis]: National Property REIT Corp., Equity Real Estate Investment Trusts (REITs) / Online Lending / Structured Finance, Residual Profit Interest                        
Schedule of Investments [Line Items]                        
Amortized Cost [16],[43] $ 0 [4],[38] $ 0 [6]                    
Fair Value [16],[43] $ 60,697,000 [3],[4],[38] $ 60,749,000 [6]                    
% of Net Assets [16],[43] 1.50% [4],[38] 1.50% [6]                    
Investment, Identifier [Axis]: National Property REIT Corporation                        
Schedule of Investments [Line Items]                        
Fair Value $ 1,632,298,000                      
Investment, Identifier [Axis]: Nationwide Loan Company LLC | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 49,351,000 $ 50,400,000               47,993,000    
Investment, Identifier [Axis]: Nationwide Loan Company LLC - First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Interest, PIK 10.00% 10.00%                    
Investment, Identifier [Axis]: Nationwide Loan Company LLC, Consumer Finance, Class A Units                        
Schedule of Investments [Line Items]                        
Units (in shares) [12],[17] 38,550,460 [1],[2],[4] 38,550,460 [6]                    
Amortized Cost [12],[17] $ 20,846,000 [4] $ 20,846,000 [6]                    
Fair Value [12],[17] $ 28,569,000 [3],[4] $ 30,140,000 [6]                    
% of Net Assets [12],[17] 0.70% [4] 0.70% [6]                    
Investment, Identifier [Axis]: Nationwide Loan Company LLC, Consumer Finance, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[17],[35] 10.00% [4] 10.00% [6]                    
Interest, PIK [12],[17],[35] 10.00% [4] 10.00% [6]                    
Floor [12],[17],[35] 0.00% [4] 0.00% [6]                    
Principal Value [12],[17],[35] $ 20,782,000 [4] $ 20,260,000 [6]                    
Amortized Cost [12],[17],[35] 20,782,000 [4] 20,260,000 [6]                    
Fair Value [12],[17],[35] $ 20,782,000 [3],[4] $ 20,260,000 [6]                    
% of Net Assets [12],[17],[35] 0.50% [4] 0.50% [6]                    
Investment, Identifier [Axis]: Nexus Buyer LLC, Capital Markets, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36] 9.37% 7.44%                    
Basis spread rate [30],[36] 6.25% 6.25%                    
Floor [30],[36] 0.50% 0.50%                    
Principal Value [30],[36] $ 42,500,000 $ 42,500,000                    
Amortized Cost [30],[36] 42,500,000 42,500,000                    
Fair Value [3],[30],[36] $ 41,640,000 $ 41,574,000                    
% of Net Assets [30],[36] 1.10% 1.00%                    
Investment, Identifier [Axis]: Nixon, Inc. | Affiliate Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 0 $ 0               0    
Investment, Identifier [Axis]: Nixon, Inc., Textiles, Apparel & Luxury Goods , Common Stock                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5],[23] 857 [1],[9] 857 [7],[10]                    
Amortized Cost [5],[23] $ 0 [9] $ 0 [10]                    
Fair Value [3],[5],[23] $ 0 [9] $ 0 [10]                    
% of Net Assets [5],[23] 0.00% [9] 0.00% [10]                    
Investment, Identifier [Axis]: Octagon Investment Partners 18-R Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 15.18% 11.27%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 46,016,000 $ 46,016,000                    
Amortized Cost [12],[37] 21,735,000 22,064,000                    
Fair Value [3],[12],[37] $ 17,476,000 $ 17,161,000                    
% of Net Assets [12],[37] 0.40% 0.50%                    
Investment, Identifier [Axis]: Octagon Investment Partners XV, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 9.28% 8.63%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 42,064,000 $ 42,064,000                    
Amortized Cost [12],[37] 29,058,000 29,613,000                    
Fair Value [3],[12],[37] $ 24,383,000 $ 24,235,000                    
% of Net Assets [12],[37] 0.60% 0.70%                    
Investment, Identifier [Axis]: OneTouchPoint Corp, Professional Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 11.67% 10.25%                    
Basis spread rate [30],[31] 8.00% 8.00%                    
Floor [30],[31] 1.00% 1.00%                    
Principal Value [30],[31] $ 39,285,000 $ 39,488,000                    
Amortized Cost [30],[31] 39,285,000 39,488,000                    
Fair Value [3],[30],[31] $ 39,285,000 $ 39,488,000                    
% of Net Assets [30],[31] 1.00% 1.00%                    
Investment, Identifier [Axis]: Online Consumer Lending | NPRC                        
Schedule of Investments [Line Items]                        
Fair Value $ 25,058,000                      
Investment, Identifier [Axis]: PGX Holdings, Inc. | Affiliate Investments                        
Schedule of Investments [Line Items]                        
Uncommitted funds                 $ 202,931,000      
Fair Value $ 287,751,000 $ 340,253,000               313,089,000    
Investment, Identifier [Axis]: PGX Holdings, Inc., 1.5 Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Principal Value                 18,164,000      
Investment, Identifier [Axis]: PGX Holdings, Inc., Diversified Consumer Services, Common Stock                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5],[24] 40,780,359 [1],[9] 40,780,359 [7],[10]                    
Amortized Cost [5],[24] $ 0 [9] $ 0 [10]                    
Fair Value [3],[5],[24] $ 66,904,000 [9] $ 114,940,000 [10]                    
% of Net Assets [5],[24] 1.70% [9] 2.80% [10]                    
Investment, Identifier [Axis]: PGX Holdings, Inc., Diversified Consumer Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [24],[30],[31],[36] 11.56% [9] 9.25% [10]                    
Basis spread rate [24],[30],[31],[36] 7.75% [9] 7.75% [10]                    
Floor [24],[30],[31],[36] 1.50% [9] 1.50% [10]                    
Principal Value [24],[30],[31],[36] $ 70,639,000 [9] $ 71,382,000 [10]                    
Amortized Cost [24],[30],[31],[36] 70,639,000 [9] 71,382,000 [10]                    
Fair Value [3],[24],[30],[31],[36] $ 69,029,000 [9] $ 71,382,000 [10]                    
% of Net Assets [24],[30],[31],[36] 1.80% [9] 1.70% [10]                    
Investment, Identifier [Axis]: PGX Holdings, Inc., Diversified Consumer Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [24],[30],[31] 14.82% [9] 13.42% [10]                    
Basis spread rate [24],[30],[31] 11.75% [9] 11.75% [10]                    
Floor [24],[30],[31] 1.50% [9] 1.50% [10]                    
Principal Value $ 153,931,000 [9],[24],[30],[31] $ 153,931,000 [10],[24],[30],[31]             153,931,000      
Amortized Cost [24],[30],[31] 153,931,000 [9] 153,931,000 [10]                    
Fair Value [3],[24],[30],[31] $ 151,818,000 [9] $ 153,931,000 [10]                    
% of Net Assets [24],[30],[31] 3.80% [9] 3.70% [10]                    
Investment, Identifier [Axis]: PGX Holdings, Inc., First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Principal Value                 49,000,000      
Investment, Identifier [Axis]: PGX Holdings, Inc., First Lien Senior Secured Term Loan                        
Schedule of Investments [Line Items]                        
Principal Value                 47,773,000      
Investment, Identifier [Axis]: PGX Holdings, Inc., Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Principal Value                 $ 122,271,000      
Investment, Identifier [Axis]: Pacific World Corporation | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 65,336,000 $ 59,179,000               71,097,000    
Investment, Identifier [Axis]: Pacific World Corporation - First Lien Term Loan A                        
Schedule of Investments [Line Items]                        
Interest, PIK 8.37% 6.92%                    
Investment, Identifier [Axis]: Pacific World Corporation - Revolving Line of Credit                        
Schedule of Investments [Line Items]                        
Interest, PIK 10.37% 8.92%                    
Investment, Identifier [Axis]: Pacific World Corporation, Personal Product, Common Stock                        
Schedule of Investments [Line Items]                        
Units (in shares) [5],[19] 6,778,414 [1],[2],[4] 6,778,414 [6]                    
Amortized Cost [5],[19] $ 0 [4] $ 0 [6]                    
Fair Value [5],[19] $ 0 [3],[4] $ 0 [6]                    
% of Net Assets [5],[19] 0.00% [4] 0.00% [6]                    
Investment, Identifier [Axis]: Pacific World Corporation, Personal Product, Convertible Preferred Equity                        
Schedule of Investments [Line Items]                        
Units (in shares) [5],[19] 323,235 [1],[2],[4] 323,235 [6]                    
Interest, PIK [4],[5],[19] 6.50%                      
Amortized Cost [5],[19] $ 189,295,000 [4] $ 189,295,000 [6]                    
Fair Value [5],[19] $ 0 [3],[4] $ 0 [6]                    
% of Net Assets [5],[19] 0.00% [4] 0.00% [6]                    
Investment, Identifier [Axis]: Pacific World Corporation, Personal Product, First Lien Revolving Line of Credit                        
Schedule of Investments [Line Items]                        
Uncommitted funds [19],[35],[38] $ 26,000,000 [1],[2],[4],[30] $ 26,000,000 [6]                    
Basis spread rate [19],[35],[38] 7.25% [4],[30] 7.25% [6]                    
Interest, PIK [19],[35],[38] 10.37% [4],[30] 8.92% [6]                    
Floor [19],[35],[38] 1.00% [4],[30] 1.00% [6]                    
Principal Value [19],[35],[38] $ 27,897,000 [4],[30] $ 26,743,000 [6]                    
Amortized Cost [19],[35],[38] 27,897,000 [4],[30] 26,743,000 [6]                    
Fair Value [19],[35],[38] $ 27,897,000 [3],[4],[30] $ 26,743,000 [6]                    
% of Net Assets [19],[35],[38] 0.70% [4],[30] 0.60% [6]                    
Investment, Identifier [Axis]: Pacific World Corporation, Personal Product, First Lien Term Loan A                        
Schedule of Investments [Line Items]                        
Basis spread rate [19],[30],[35] 5.25% [4] 5.25% [6]                    
Interest, PIK [19],[30],[35] 8.37% [4] 6.92% [6]                    
Floor [19],[30],[35] 1.00% [4] 1.00% [6]                    
Principal Value [19],[30],[35] $ 45,207,000 [4] $ 44,358,000 [6]                    
Amortized Cost [19],[30],[35] 45,207,000 [4] 44,358,000 [6]                    
Fair Value [19],[30],[35] $ 37,439,000 [3],[4] $ 32,436,000 [6]                    
% of Net Assets [19],[30],[35] 0.90% [4] 0.80% [6]                    
Investment, Identifier [Axis]: PeopleConnect Holdings, LLC, Interactive Media & Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 11.92% 10.50% [27]                    
Basis spread rate [30],[31] 8.25% 8.25% [27]                    
Floor [30],[31] 1.75% 1.75% [27]                    
Principal Value [30],[31] $ 226,054,000 $ 233,204,000 [27]                    
Amortized Cost [30],[31] 226,054,000 233,204,000 [27]                    
Fair Value [3],[30],[31] $ 226,054,000 $ 233,204,000 [27]                    
% of Net Assets [30],[31] 5.70% 5.70% [27]                    
Investment, Identifier [Axis]: PetVet Care Centers, LLC, Health Care Providers & Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 9.37% 7.92%                    
Basis spread rate [30],[31],[36] 6.25% 6.25%                    
Floor [30],[31],[36] 0.00% 0.00%                    
Principal Value [30],[31],[36] $ 16,000,000 $ 16,000,000                    
Amortized Cost [30],[31],[36] 15,945,000 15,941,000                    
Fair Value [3],[30],[31],[36] $ 15,560,000 $ 15,950,000                    
% of Net Assets [30],[31],[36] 0.40% 0.40%                    
Investment, Identifier [Axis]: PlayPower, Inc., Leisure Products, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 9.17% 7.75%                    
Basis spread rate [30],[31],[36] 5.50% 5.50%                    
Floor [30],[31],[36] 0.00% 0.00%                    
Principal Value [30],[31],[36] $ 5,824,000 $ 5,841,000                    
Amortized Cost [30],[31],[36] 5,791,000 5,805,000                    
Fair Value [3],[30],[31],[36] $ 5,446,000 $ 5,548,000                    
% of Net Assets [30],[31],[36] 0.10% 0.10%                    
Investment, Identifier [Axis]: Precisely Software Incorporated, IT Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 10.03%                      
Basis spread rate [30],[31],[36] 7.25%                      
Floor [30],[31],[36] 0.75%                      
Principal Value [30],[31],[36] $ 80,000,000                      
Amortized Cost [30],[31],[36] 79,245,000                      
Fair Value [3],[30],[31],[36] $ 76,383,000                      
% of Net Assets [30],[31],[36] 1.90%                      
Investment, Identifier [Axis]: Preventics, Inc., Health Care Providers & Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 14.17% 12.75% [28]                    
Basis spread rate [30],[31] 10.50% 10.50% [28]                    
Floor [30],[31] 1.00% 1.00% [28]                    
Principal Value [30],[31] $ 9,219,000 $ 9,243,000 [28]                    
Amortized Cost [30],[31] 9,219,000 9,243,000 [28]                    
Fair Value [3],[30],[31] $ 9,219,000 $ 9,243,000 [28]                    
% of Net Assets [30],[31] 0.20% 0.20% [28]                    
Investment, Identifier [Axis]: Preventics, Inc., Health Care Providers & Services, Series A Convertible Preferred Stock                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5] 320 [1] 320 [7],[28]                    
Investment interest rate [5] 8.00%                      
Floor [5] 0.00%                      
Principal Value [5] $ 0                      
Amortized Cost [5] 127,000 $ 127,000 [28]                    
Fair Value [3],[5] $ 127,000 $ 148,000 [28]                    
% of Net Assets [5] 0.00% 0.00% [28]                    
Investment, Identifier [Axis]: Preventics, Inc., Health Care Providers & Services, Series C Convertible Preferred Stock                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5] 3,575 [1] 3,575 [7],[28]                    
Investment interest rate [5] 8.00%                      
Floor [5] 0.00%                      
Principal Value [5] $ 0                      
Amortized Cost [5] 1,419,000 $ 1,419,000 [28]                    
Fair Value [3],[5] $ 1,415,000 $ 1,659,000 [28]                    
% of Net Assets [5] 0.00% 0.00% [28]                    
Investment, Identifier [Axis]: R-V Industries, Inc. | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 56,118,000 $ 56,923,000               49,693,000    
Investment, Identifier [Axis]: R-V Industries, Inc., Machinery, Common Stock                        
Schedule of Investments [Line Items]                        
Units (in shares) 745,107 [1],[2],[4] 745,107 [6]                    
Amortized Cost $ 6,866,000 [4] $ 6,866,000 [6]                    
Fair Value $ 22,496,000 [3],[4] $ 23,301,000 [6]                    
% of Net Assets 0.60% [4] 0.60% [6]                    
Investment, Identifier [Axis]: R-V Industries, Inc., Machinery, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 12.67% [4] 11.25% [6]                    
Basis spread rate [30],[31] 9.00% [4] 9.00% [6]                    
Floor [30],[31] 1.00% [4] 1.00% [6]                    
Principal Value [30],[31] $ 33,622,000 [4] $ 33,622,000 [6]                    
Amortized Cost [30],[31] 33,622,000 [4] 33,622,000 [6]                    
Fair Value [30],[31] $ 33,622,000 [3],[4] $ 33,622,000 [6]                    
% of Net Assets [30],[31] 0.80% [4] 0.80% [6]                    
Investment, Identifier [Axis]: RC Buyer, Inc., Auto Components, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 10.17% 8.75%                    
Basis spread rate [30],[31],[36] 6.50% 6.50%                    
Floor [30],[31],[36] 0.75% 0.75%                    
Principal Value [30],[31],[36] $ 20,000,000 $ 20,000,000                    
Amortized Cost [30],[31],[36] 19,915,000 19,911,000                    
Fair Value [3],[30],[31],[36] $ 19,435,000 $ 19,989,000                    
% of Net Assets [30],[31],[36] 0.50% 0.50%                    
Investment, Identifier [Axis]: RGIS Services, LLC | Affiliate Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 9,755,000 $ 17,004,000               17,440,000    
Investment, Identifier [Axis]: RGIS Services, LLC, Commercial Services & Supplies, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [10],[30],[36]   9.17%                    
Basis spread rate [10],[30],[36]   7.50%                    
Floor [10],[30],[36]   1.00%                    
Principal Value [10],[30],[36]   $ 3,680,000                    
Amortized Cost [10],[30],[36]   3,680,000                    
Fair Value [3],[10],[30],[36]   $ 3,680,000                    
% of Net Assets [10],[30],[36]   0.10%                    
Investment, Identifier [Axis]: RGIS Services, LLC, Commercial Services & Supplies, Membership Interest                        
Schedule of Investments [Line Items]                        
Amortized Cost 9,523,000 [9] $ 10,303,000 [10]                    
Fair Value [3] $ 9,755,000 [9] $ 13,324,000 [10]                    
% of Net Assets 0.20% [9] 0.30% [10]                    
Investment, Identifier [Axis]: RME Group Holding Company, Media, First Lien Term Loan A                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 9.17% 7.75%                    
Basis spread rate [30],[31] 5.50% 5.50%                    
Floor [30],[31] 1.00% 1.00%                    
Principal Value [30],[31] $ 25,800,000 $ 25,988,000                    
Amortized Cost [30],[31] 25,800,000 25,988,000                    
Fair Value [3],[30],[31] $ 25,800,000 $ 25,988,000                    
% of Net Assets [30],[31] 0.70% 0.60%                    
Investment, Identifier [Axis]: RME Group Holding Company, Media, First Lien Term Loan B                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 14.67% 13.25%                    
Basis spread rate [30],[31] 11.00% 11.00%                    
Floor [30],[31] 1.00% 1.00%                    
Principal Value [30],[31] $ 21,747,000 $ 21,809,000                    
Amortized Cost [30],[31] 21,747,000 21,809,000                    
Fair Value [3],[30],[31] $ 21,747,000 $ 21,809,000                    
% of Net Assets [30],[31] 0.50% 0.50%                    
Investment, Identifier [Axis]: Raisin Acquisition Co, Inc., Pharmaceuticals, First Lien Delayed Draw Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[38] 7.00% 9.26%                    
Basis spread rate [30],[38] 10.81% 7.00%                    
Floor [30],[38] 1.00% 1.00%                    
Principal Value [30],[38] $ 1,546,000 $ 1,550,000                    
Amortized Cost [30],[38] 1,507,000 1,509,000                    
Fair Value [3],[30],[38] $ 1,519,000 $ 1,527,000                    
% of Net Assets [30],[38] 0.00% 0.00%                    
Investment, Identifier [Axis]: Raisin Acquisition Co, Inc., Pharmaceuticals, First Lien Revolving Line of Credit                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[38] 10.44% 8.75%                    
Basis spread rate [30],[38] 7.00% 7.00%                    
Floor [30],[38] 1.00% 1.00%                    
Principal Value [30],[38] $ 0 $ 0                    
Amortized Cost [30],[38] 0 0                    
Fair Value [3],[30],[38] $ 0 $ 0                    
% of Net Assets [30],[38] 0.00% 0.00%                    
Investment, Identifier [Axis]: Raisin Acquisition Co, Inc., Pharmaceuticals, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 10.44% 8.75%                    
Basis spread rate [30],[31] 7.00% 7.00%                    
Floor [30],[31] 1.00% 1.00%                    
Principal Value [30],[31] $ 24,738,000 $ 24,801,000                    
Amortized Cost [30],[31] 24,029,000 24,048,000                    
Fair Value [3],[30],[31] $ 24,310,000 $ 24,435,000                    
% of Net Assets [30],[31] 0.60% 0.60%                    
Investment, Identifier [Axis]: Real Estate Portfolio | NPRC                        
Schedule of Investments [Line Items]                        
Fair Value $ 1,412,730,000                      
Investment, Identifier [Axis]: Reception Purchaser, LLC, Air Freight & Logistics, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 9.13% 8.20%                    
Basis spread rate [30],[31],[36] 6.00% 6.00%                    
Floor [30],[31],[36] 0.75% 0.75%                    
Principal Value [30],[31],[36] $ 63,207,000 $ 53,366,000                    
Amortized Cost [30],[31],[36] 62,130,000 52,587,000                    
Fair Value [3],[30],[31],[36] $ 62,488,000 $ 52,924,000                    
% of Net Assets [30],[31],[36] 1.60% 1.30%                    
Investment, Identifier [Axis]: Redstone Holdco 2 LP, IT Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 10.52% 8.97% [29]                    
Basis spread rate [30],[31],[36] 7.75% 7.75% [29]                    
Floor [30],[31],[36] 0.75% 0.75% [29]                    
Principal Value [30],[31],[36] $ 50,000,000 $ 50,000,000 [29]                    
Amortized Cost [30],[31],[36] 49,267,000 49,240,000 [29]                    
Fair Value [3],[30],[31],[36] $ 42,547,000 $ 48,506,000 [29]                    
% of Net Assets [30],[31],[36] 1.10% 1.20% [29]                    
Investment, Identifier [Axis]: Research Now Group, Inc. & Survey Sampling International LLC, Professional Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36],[39] 8.84% 6.50%                    
Basis spread rate [30],[31],[36],[39] 5.50% 5.50%                    
Floor [30],[31],[36],[39] 1.00% 1.00%                    
Principal Value [30],[31],[36],[39] $ 9,525,000 $ 9,550,000                    
Amortized Cost [30],[31],[36],[39] 9,348,000 9,355,000                    
Fair Value [3],[30],[31],[36],[39] $ 8,734,000 $ 8,929,000                    
% of Net Assets [30],[31],[36],[39] 0.20% 0.20%                    
Investment, Identifier [Axis]: Research Now Group, Inc. & Survey Sampling International LLC, Professional Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 12.84% 10.50%                    
Basis spread rate [30],[31],[36] 9.50% 9.50%                    
Floor [30],[31],[36] 1.00% 1.00%                    
Principal Value [30],[31],[36] $ 50,000,000 $ 50,000,000                    
Amortized Cost [30],[31],[36] 48,606,000 48,496,000                    
Fair Value [3],[30],[31],[36] $ 45,500,000 $ 49,200,000                    
% of Net Assets [30],[31],[36] 1.10% 1.20%                    
Investment, Identifier [Axis]: Rising Tide Holdings, Inc.                        
Schedule of Investments [Line Items]                        
Fair Value $ 19,717,000                      
Investment, Identifier [Axis]: Rising Tide Holdings, Inc., Diversified Consumer Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 11.37% 9.92%                    
Basis spread rate [30],[31],[36] 8.25% 8.25%                    
Floor [30],[31],[36] 0.75% 0.75%                    
Principal Value [30],[31],[36] $ 23,000,000 $ 23,000,000                    
Amortized Cost [30],[31],[36] 22,713,000 22,702,000                    
Fair Value [3],[30],[31],[36] $ 19,717,000 $ 21,583,000                    
% of Net Assets [30],[31],[36] 0.50% 0.50%                    
Investment, Identifier [Axis]: Romark WM-R Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 8.50% 6.65%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 27,725,000 $ 27,725,000                    
Amortized Cost [12],[37] 20,019,000 20,448,000                    
Fair Value [3],[12],[37] $ 14,339,000 $ 14,616,000                    
% of Net Assets [12],[37] 0.40% 0.40%                    
Investment, Identifier [Axis]: Rosa Mexicano, Hotels, Restaurants & Leisure, First Lien Revolving Line of Credit                        
Schedule of Investments [Line Items]                        
Uncommitted funds [2],[30],[38] $ 500,000 [1] $ 500,000 [7]                    
Investment interest rate [30],[38] 11.17% 9.75%                    
Basis spread rate [30],[38] 7.50% 7.50%                    
Floor [30],[38] 1.25% 1.25%                    
Principal Value [30],[38] $ 338,000 $ 382,000                    
Amortized Cost [30],[38] 338,000 382,000                    
Fair Value [3],[30],[38] $ 325,000 $ 371,000                    
% of Net Assets [30],[38] 0.00% 0.00%                    
Investment, Identifier [Axis]: Rosa Mexicano, Hotels, Restaurants & Leisure, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30] 11.17% 9.75%                    
Basis spread rate [30] 7.50% 7.50%                    
Floor [30] 1.25% 1.25%                    
Principal Value [30] $ 22,789,000 $ 22,977,000                    
Amortized Cost [30] 22,789,000 22,977,000                    
Fair Value [3],[30] $ 21,909,000 $ 22,280,000                    
% of Net Assets [30] 0.60% 0.50%                    
Investment, Identifier [Axis]: SEOTownCenter, Inc., IT Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 11.67% 10.25%                    
Basis spread rate [30],[31] 8.00% 8.00%                    
Floor [30],[31] 1.00% 1.00%                    
Principal Value [30],[31] $ 51,610,000 $ 51,740,000                    
Amortized Cost [30],[31] 51,610,000 51,740,000                    
Fair Value [3],[30],[31] $ 51,610,000 $ 51,740,000                    
% of Net Assets [30],[31] 1.30% 1.30%                    
Investment, Identifier [Axis]: Secured Structured Notes | NPRC                        
Schedule of Investments [Line Items]                        
Amortized Cost $ 448,235,000                      
Fair Value $ 420,627,000                      
Investment, Identifier [Axis]: Shearer’s Foods, LLC, Food Products, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 10.87% 9.42%                    
Basis spread rate [30],[31],[36] 7.75% 7.75%                    
Floor [30],[31],[36] 1.00% 1.00%                    
Principal Value [30],[31],[36] $ 5,000,000 $ 5,000,000                    
Amortized Cost [30],[31],[36] 4,925,000 4,922,000                    
Fair Value [3],[30],[31],[36] $ 5,000,000 $ 4,953,000                    
% of Net Assets [30],[31],[36] 0.10% 0.10%                    
Investment, Identifier [Axis]: ShiftKey, LLC                        
Schedule of Investments [Line Items]                        
Investment interest rate [30]   7.96%                    
Basis spread rate [30]   5.75%                    
Floor [30]   1.00%                    
Principal Value [30]   $ 25,000,000                    
Amortized Cost [30]   25,000,000                    
Fair Value [3],[30]   $ 25,000,000                    
% of Net Assets [30]   0.60%                    
Investment, Identifier [Axis]: ShiftKey, LLC, Health Care Technology, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 7.96%                      
Basis spread rate [30],[31] 5.75%                      
Floor [30],[31] 1.00%                      
Principal Value [30],[31] $ 65,000,000                      
Amortized Cost [30],[31] 64,460,000                      
Fair Value [3],[30],[31] $ 65,000,000                      
% of Net Assets [30],[31] 1.60%                      
Investment, Identifier [Axis]: Shutterfly, LLC                        
Schedule of Investments [Line Items]                        
Fair Value $ 16,946,000                      
Investment, Identifier [Axis]: Shutterfly, LLC, Internet & Direct Marketing Retail, 2021 Refinancing First Lien Term Loan B                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 8.67% 7.25% [39]                    
Basis spread rate [30],[31],[36] 5.00% 5.00% [39]                    
Floor [30],[31],[36] 0.75% 0.75% [39]                    
Principal Value [30],[31],[36] $ 20,295,000 $ 20,295,000 [39]                    
Amortized Cost [30],[31],[36] 20,217,000 20,212,000 [39]                    
Fair Value [3],[30],[31],[36] $ 16,946,000 $ 17,454,000 [39]                    
% of Net Assets [30],[31],[36] 0.40% 0.40% [39]                    
Investment, Identifier [Axis]: Sorenson Communications, LLC, Diversified Telecommunication Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 9.17% 7.75%                    
Basis spread rate [30],[31],[36] 5.50% 5.50%                    
Floor [30],[31],[36] 0.75% 0.75%                    
Principal Value [30],[31],[36] $ 35,194,000 $ 35,194,000                    
Amortized Cost [30],[31],[36] 34,776,000 34,746,000                    
Fair Value [3],[30],[31],[36] $ 34,782,000 $ 34,965,000                    
% of Net Assets [30],[31],[36] 0.90% 0.80%                    
Investment, Identifier [Axis]: Southern Veterinary Partners, Health Care Providers & Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 10.87% 9.42%                    
Basis spread rate [30],[31],[36] 7.75% 7.75%                    
Floor [30],[31],[36] 1.00% 1.00%                    
Principal Value [30],[31],[36] $ 8,000,000 $ 8,000,000                    
Amortized Cost [30],[31],[36] 7,939,000 7,937,000                    
Fair Value [3],[30],[31],[36] $ 7,824,000 $ 7,911,000                    
% of Net Assets [30],[31],[36] 0.20% 0.20%                    
Investment, Identifier [Axis]: Spectrum Holdings III Corp, Health Care Equipment & Supplies, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36] 10.12% 8.67% [31]                    
Basis spread rate [30],[36] 7.00% 7.00% [31]                    
Floor [30],[36] 1.00% 1.00% [31]                    
Principal Value [30],[36] $ 7,500,000 $ 7,500,000 [31]                    
Amortized Cost [30],[36] 7,484,000 7,483,000 [31]                    
Fair Value [3],[30],[36] $ 6,894,000 $ 6,966,000 [31]                    
% of Net Assets [30],[36] 0.20% 0.20% [31]                    
Investment, Identifier [Axis]: Staples, Inc., Distributors, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36],[39] 7.78% 6.29%                    
Basis spread rate [30],[31],[36],[39] 5.00% 5.00%                    
Floor [30],[31],[36],[39] 0.00% 0.00%                    
Principal Value [30],[31],[36],[39] $ 8,751,000 $ 8,774,000                    
Amortized Cost [30],[31],[36],[39] 8,701,000 8,720,000                    
Fair Value [3],[30],[31],[36],[39] $ 7,821,000 $ 7,921,000                    
% of Net Assets [30],[31],[36],[39] 0.20% 0.20%                    
Investment, Identifier [Axis]: Strategic Materials, Household Durables, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36] 6.53%                      
Basis spread rate [30],[36] 3.75%                      
Floor [30],[36] 1.00%                      
Principal Value [30],[36] $ 7,351,000                      
Amortized Cost [30],[36] 5,647,000                      
Fair Value [3],[30],[36] $ 5,657,000                      
% of Net Assets [30],[36] 0.10%                      
Investment, Identifier [Axis]: Strategic Materials, Household Durables, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36] 10.53% 9.04%                    
Basis spread rate [30],[36] 7.75% 7.75%                    
Floor [30],[36] 1.00% 1.00%                    
Principal Value [30],[36] $ 7,000,000 $ 7,000,000                    
Amortized Cost [30],[36] 6,973,000 6,971,000                    
Fair Value [3],[30],[36] $ 5,207,000 $ 5,737,000                    
% of Net Assets [30],[36] 0.10% 0.10%                    
Investment, Identifier [Axis]: Stryker Energy, LLC, Energy Equipment & Services, Overriding Royalty Interest                        
Schedule of Investments [Line Items]                        
Floor [44] 0.00%                      
Principal Value [44] $ 0                      
Amortized Cost [44] 0 $ 0                    
Fair Value [3],[44] $ 0 $ 0                    
% of Net Assets [44] 0.00% 0.00%                    
Investment, Identifier [Axis]: Sudbury Mill CLO Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37],[40] 0.00% 0.00%                    
Floor [12],[37],[40] 0.00% 0.00%                    
Principal Value [12],[37],[40] $ 28,200,000 $ 28,200,000                    
Amortized Cost [12],[37],[40] 0 0                    
Fair Value [3],[12],[37],[40] $ 0 $ 0                    
% of Net Assets [12],[37],[40] 0.00% 0.00%                    
Investment, Identifier [Axis]: Symphony CLO XIV, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37],[40] 0.00% 0.00%                    
Floor [12],[37],[40] 0.00% 0.00%                    
Principal Value [12],[37],[40] $ 49,250,000 $ 49,250,000                    
Amortized Cost [12],[37],[40] 24,723,000 24,723,000                    
Fair Value [3],[12],[37],[40] $ 13,712,000 $ 14,392,000                    
% of Net Assets [12],[37],[40] 0.30% 0.30%                    
Investment, Identifier [Axis]: Symphony CLO XV, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 9.40% 7.65%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 63,831,000 $ 63,831,000                    
Amortized Cost [12],[37] 41,773,000 42,037,000                    
Fair Value [3],[12],[37] $ 26,651,000 $ 28,429,000                    
% of Net Assets [12],[37] 0.60% 0.70%                    
Investment, Identifier [Axis]: TPS, LLC - First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Interest, PIK 1.50% 1.50%                    
Investment, Identifier [Axis]: TPS, LLC, Machinery, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[35] 12.67% 11.25%                    
Basis spread rate [30],[31],[35] 9.00% 9.00%                    
Interest, PIK [30],[31],[35] 1.50% 1.50%                    
Floor [30],[31],[35] 1.00% 1.00%                    
Principal Value [30],[31],[35] $ 27,815,000 $ 28,257,000                    
Amortized Cost [30],[31],[35] 27,815,000 28,257,000                    
Fair Value [3],[30],[31],[35] $ 27,815,000 $ 28,257,000                    
% of Net Assets [30],[31],[35] 0.70% 0.70%                    
Investment, Identifier [Axis]: Targus Cayman HoldCo Limited | Affiliate Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 19,769,000 $ 36,007,000               26,205,000    
Investment, Identifier [Axis]: Targus Cayman HoldCo Limited, Textiles, Apparel & Luxury Goods, Common Stock                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5],[34] 7,383,395 [1],[9] 7,383,395 [7],[10]                    
Amortized Cost [5],[34] $ 2,805,000 [9] $ 2,805,000 [10]                    
Fair Value [3],[5],[34] $ 19,769,000 [9] $ 36,007,000 [10]                    
% of Net Assets [5],[34] 0.50% [9] 0.90% [10]                    
Investment, Identifier [Axis]: The RK Logistics Group, Inc., Commercial Services & Supplies, Class A Common Units                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5] 263,000 [1] 263,000 [7]                    
Floor [5] 0.00%                      
Principal Value [5] $ 0                      
Amortized Cost [5] 263,000 $ 263,000                    
Fair Value [3],[5] $ 0 $ 0                    
% of Net Assets [5] 0.00% 0.00%                    
Investment, Identifier [Axis]: The RK Logistics Group, Inc., Commercial Services & Supplies, Class B Common Units                        
Schedule of Investments [Line Items]                        
Units (in shares) [2],[5] 1,237,000 [1] 1,237,000 [7]                    
Floor [5] 0.00%                      
Principal Value [5] $ 0                      
Amortized Cost [5] 1,237,000 $ 1,237,000                    
Fair Value [3],[5] $ 10,145,000 $ 3,457,000                    
% of Net Assets [5] 0.30% 0.10%                    
Investment, Identifier [Axis]: The RK Logistics Group, Inc., Commercial Services & Supplies, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 14.17% 12.75%                    
Basis spread rate [30],[31] 10.50% 10.50%                    
Floor [30],[31] 1.00% 1.00%                    
Principal Value [30],[31] $ 6,122,000 $ 15,652,000                    
Amortized Cost [30],[31] 6,122,000 15,652,000                    
Fair Value [3],[30],[31] $ 6,122,000 $ 15,808,000                    
% of Net Assets [30],[31] 0.20% 0.40%                    
Investment, Identifier [Axis]: Town & Country Holdings, Inc. - First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Interest, PIK 4.875%   4.875%       8.125%          
Investment, Identifier [Axis]: Town & Country Holdings, Inc., Distributors, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[35] 9.42% 10.75%                    
Basis spread rate [30],[31],[35] 5.75% 8.50%                    
Interest, PIK [30],[31],[35] 4.875%                      
Floor [30],[31],[35] 1.50% 1.50%                    
Principal Value [30],[31],[35] $ 159,506,000 $ 166,080,000                    
Amortized Cost [30],[31],[35] 159,506,000 166,080,000                    
Fair Value [3],[30],[31],[35] $ 153,011,000 $ 166,080,000                    
% of Net Assets [30],[31],[35] 3.90% 4.00%                    
Investment, Identifier [Axis]: Town & Country Holdings, Inc., Distributors, Non-Voting Class W Interests                        
Schedule of Investments [Line Items]                        
Units (in shares) [1],[2],[5] 188,105                      
Investment interest rate [5] 4.00%                      
Floor [5] 0.00%                      
Principal Value [5] $ 0                      
Amortized Cost [5] 0                      
Fair Value [3],[5] $ 2,012,000                      
% of Net Assets [5] 0.10%                      
Investment, Identifier [Axis]: USES Corp. | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 25,669,000 $ 22,395,000               33,815,000    
Investment, Identifier [Axis]: USES Corp. - First Lien Equipment Term Loan                        
Schedule of Investments [Line Items]                        
Interest, PIK 12.12%                      
Investment, Identifier [Axis]: USES Corp., Commercial Services & Supplies, Common Stock                        
Schedule of Investments [Line Items]                        
Units (in shares) [5],[21] 268,962 [1],[2],[4] 268,962 [6]                    
Amortized Cost [5],[21] $ 0 [4] $ 0 [6]                    
Fair Value [5],[21] $ 0 [3],[4] $ 0 [6]                    
% of Net Assets [5],[21] 0.00% [4] 0.00% [6]                    
Investment, Identifier [Axis]: USES Corp., Commercial Services & Supplies, First Lien Equipment Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [4],[21],[30],[35] 12.12%                      
Basis spread rate [4],[21],[30],[35] 9.00%                      
Floor [4],[21],[30],[35] 1.00%                      
Principal Value [4],[21],[30],[35] $ 6,114,000                      
Amortized Cost [4],[21],[30],[35] 6,114,000                      
Fair Value [3],[4],[21],[30],[35] $ 6,114,000                      
% of Net Assets [4],[21],[30],[35] 0.20%                      
Investment, Identifier [Axis]: USES Corp., Commercial Services & Supplies, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [21],[30] 12.12% [4] 10.67% [6]                    
Basis spread rate [21],[30] 9.00% [4] 9.00% [6]                    
Floor [21],[30] 1.00% [4] 1.00% [6]                    
Principal Value [21],[30] $ 2,000,000 [4] $ 2,000,000 [6]                    
Amortized Cost [21],[30] 2,000,000 [4] 2,000,000 [6]                    
Fair Value [21],[30] $ 2,000,000 [3],[4] $ 2,000,000 [6]                    
% of Net Assets [21],[30] 0.10% [4] 0.00% [6]                    
Investment, Identifier [Axis]: USES Corp., Commercial Services & Supplies, First Lien Term Loan A                        
Schedule of Investments [Line Items]                        
Interest, PIK [21],[41] 9.00% [4] 9.00% [6]                    
Floor [21],[41] 0.00% [4] 0.00% [6]                    
Principal Value [21],[41] $ 61,761,000 [4] $ 60,362,000 [6]                    
Amortized Cost [21],[41] 30,651,000 [4] 30,651,000 [6]                    
Fair Value [21],[41] $ 17,555,000 [3],[4] $ 20,395,000 [6]                    
% of Net Assets [21],[41] 0.40% [4] 0.50% [6]                    
Investment, Identifier [Axis]: USES Corp., Commercial Services & Supplies, First Lien Term Loan B                        
Schedule of Investments [Line Items]                        
Interest, PIK [21],[41] 15.50% [4] 15.50% [6]                    
Floor [21],[41] 0.00% [4] 0.00% [6]                    
Principal Value [21],[41] $ 94,211,000 [4] $ 90,576,000 [6]                    
Amortized Cost [21],[41] 35,567,000 [4] 35,567,000 [6]                    
Fair Value [21],[41] $ 0 [3],[4] $ 0 [6]                    
% of Net Assets [21],[41] 0.00% [4] 0.00% [6]                    
Investment, Identifier [Axis]: USG Intermediate, LLC, Leisure Products, Equity                        
Schedule of Investments [Line Items]                        
Floor [5] 0.00%                      
Principal Value [5] $ 0                      
Amortized Cost [5] 1,000 $ 1,000                    
Fair Value [3],[5] $ 0 $ 0                    
% of Net Assets [5] 0.00% 0.00%                    
Investment, Identifier [Axis]: USG Intermediate, LLC, Leisure Products, First Lien Revolving Line of Credit                        
Schedule of Investments [Line Items]                        
Uncommitted funds [2],[30],[38] $ 3,000,000 [1] $ 3,000,000 [7]                    
Investment interest rate [30],[38] 12.37% 10.92%                    
Basis spread rate [30],[38] 9.25% 9.25%                    
Floor [30],[38] 1.00% 1.00%                    
Principal Value [30],[38] $ 3,000,000 $ 3,000,000                    
Amortized Cost [30],[38] 3,000,000 3,000,000                    
Fair Value [3],[30],[38] $ 3,000,000 $ 3,000,000                    
% of Net Assets [30],[38] 0.10% 0.10%                    
Investment, Identifier [Axis]: USG Intermediate, LLC, Leisure Products, First Lien Term Loan B                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 14.87% 13.42%                    
Basis spread rate [30],[31] 11.75% 11.75%                    
Floor [30],[31] 1.00% 1.00%                    
Principal Value [30],[31] $ 59,088,000 $ 30,209,000                    
Amortized Cost [30],[31] 59,088,000 30,209,000                    
Fair Value [3],[30],[31] $ 59,088,000 $ 30,209,000                    
% of Net Assets [30],[31] 1.50% 0.70%                    
Investment, Identifier [Axis]: United Sporting Companies, Inc., Distributors, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[41] 13.25% 13.25%                    
Basis spread rate [30],[41] 11.00% 11.00%                    
Interest, PIK [30],[41] 2.00% 2.00%                    
Floor [30],[41] 2.25% 2.25%                    
Principal Value [30],[41] $ 144,692,000 $ 144,692,000                    
Amortized Cost [30],[41] 103,730,000 103,730,000                    
Fair Value [3],[30],[41] $ 6,076,000 $ 6,107,000                    
% of Net Assets [30],[41] 0.20% 0.10%                    
Investment, Identifier [Axis]: Universal Turbine Parts, LLC | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 36,114,000 $ 31,147,000               27,106,000    
Investment, Identifier [Axis]: Universal Turbine Parts, LLC, Trading Companies & Distributors, Common Stock                        
Schedule of Investments [Line Items]                        
Units (in shares) [5],[20] 10,000 [1],[2],[4] 10,000 [6]                    
Amortized Cost [5],[20] $ 0 [4] $ 0 [6]                    
Fair Value [5],[20] $ 0 [3],[4] $ 0 [6]                    
% of Net Assets [5],[20] 0.00% [4] 0.00% [6]                    
Investment, Identifier [Axis]: Universal Turbine Parts, LLC, Trading Companies & Distributors, First Lien Delayed Draw Term Loan                        
Schedule of Investments [Line Items]                        
Uncommitted funds [20],[30],[38] $ 6,965,000 [1],[2],[4] $ 6,965,000 [6]                    
Investment interest rate [20],[30],[38] 10.87% [4] 10.25% [6]                    
Basis spread rate [20],[30],[38] 7.75% [4] 7.75% [6]                    
Floor [20],[30],[38] 2.50% [4] 2.50% [6]                    
Principal Value [20],[30],[38] $ 3,133,000 [4] $ 3,141,000 [6]                    
Amortized Cost [20],[30],[38] 3,133,000 [4] 3,141,000 [6]                    
Fair Value [20],[30],[38] $ 3,133,000 [3],[4] $ 3,141,000 [6]                    
% of Net Assets [20],[30],[38] 0.10% [4] 0.10% [6]                    
Investment, Identifier [Axis]: Universal Turbine Parts, LLC, Trading Companies & Distributors, First Lien Term Loan A                        
Schedule of Investments [Line Items]                        
Investment interest rate [20],[30] 9.42% [4] 8.00% [6]                    
Basis spread rate [20],[30] 5.75% [4] 5.75% [6]                    
Floor [20],[30] 1.00% [4] 1.00% [6]                    
Principal Value [20],[30] $ 29,575,000 [4] $ 29,575,000 [6]                    
Amortized Cost [20],[30] 29,575,000 [4] 29,575,000 [6]                    
Fair Value [20],[30] $ 29,575,000 [3],[4] $ 28,006,000 [6]                    
% of Net Assets [20],[30] 0.70% [4] 0.70% [6]                    
Investment, Identifier [Axis]: Universal Turbine Parts, LLC, Trading Companies & Distributors, Preferred Units                        
Schedule of Investments [Line Items]                        
Units (in shares) [5],[20] 55,383,218 [1],[2],[4] 55,383,218 [6]                    
Amortized Cost [5],[20] $ 32,500,000 [4] $ 32,500,000 [6]                    
Fair Value [5],[20] $ 3,406,000 [3],[4] $ 0 [6]                    
% of Net Assets [5],[20] 0.10% [4] 0.00% [6]                    
Investment, Identifier [Axis]: Upstream Newco, Inc., Health Care Providers & Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 12.17% 10.17%                    
Basis spread rate [30],[31],[36] 8.50% 8.50%                    
Floor [30],[31],[36] 0.00% 0.00%                    
Principal Value [30],[31],[36] $ 22,000,000 $ 22,000,000                    
Amortized Cost [30],[31],[36] 21,868,000 21,861,000                    
Fair Value [3],[30],[31],[36] $ 21,895,000 $ 22,000,000                    
% of Net Assets [30],[31],[36] 0.60% 0.50%                    
Investment, Identifier [Axis]: VC GB Holdings I Corp, Household Durables, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 9.63% 9.63%                    
Basis spread rate [30],[31],[36] 6.75% 6.75%                    
Floor [30],[31],[36] 0.50% 0.50%                    
Principal Value [30],[31],[36] $ 23,000,000 $ 23,000,000                    
Amortized Cost [30],[31],[36] 22,804,000 22,797,000                    
Fair Value [3],[30],[31],[36] $ 21,157,000 $ 21,896,000                    
% of Net Assets [30],[31],[36] 0.50% 0.50%                    
Investment, Identifier [Axis]: VT Topco, Inc., Commercial Services & Supplies, 2021 Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 10.12% 8.67%                    
Basis spread rate [30],[31],[36] 7.00% 7.00%                    
Floor [30],[31],[36] 0.75% 0.75%                    
Principal Value [30],[31],[36] $ 20,250,000 $ 20,250,000                    
Amortized Cost [30],[31],[36] 20,118,000 20,110,000                    
Fair Value [3],[30],[31],[36] $ 19,878,000 $ 19,992,000                    
% of Net Assets [30],[31],[36] 0.50% 0.50%                    
Investment, Identifier [Axis]: VT Topco, Inc., Commercial Services & Supplies, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 9.87% 8.42%                    
Basis spread rate [30],[31],[36] 6.75% 6.75%                    
Floor [30],[31],[36] 0.00% 0.00%                    
Principal Value [30],[31],[36] $ 12,000,000 $ 12,000,000                    
Amortized Cost [30],[31],[36] 11,930,000 11,926,000                    
Fair Value [3],[30],[31],[36] $ 11,779,000 $ 11,847,000                    
% of Net Assets [30],[31],[36] 0.30% 0.30%                    
Investment, Identifier [Axis]: Valley Electric Co. of Mt. Vernon, Inc. - First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Interest, PIK 2.50% 2.50%                    
Investment, Identifier [Axis]: Valley Electric Company, Inc. | Control Investments                        
Schedule of Investments [Line Items]                        
Fair Value $ 141,679,000 $ 145,983,000               $ 149,695,000    
Investment, Identifier [Axis]: Valley Electric Company, Inc. - First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Interest, PIK 10.00% 10.00%                    
Investment, Identifier [Axis]: Valley Electric Company, Inc. - First Lien Term Loan B                        
Schedule of Investments [Line Items]                        
Interest, PIK 4.50% 4.50%     4.50%              
Investment, Identifier [Axis]: Valley Electric Company, Inc., Construction & Engineering, Common Stock                        
Schedule of Investments [Line Items]                        
Units (in shares) [22] 50,000 [1],[2],[4] 50,000 [6]                    
Consolidated revenue interest [22],[45] 2.00% [1],[2],[4] 2.00% [6]                    
Amortized Cost [22] $ 11,550,000 [4] $ 11,506,000 [6]                    
Fair Value [22] $ 83,371,000 [3],[4] $ 87,449,000 [6]                    
% of Net Assets [22] 2.10% [4] 2.10% [6]                    
Investment, Identifier [Axis]: Valley Electric Company, Inc., Construction & Engineering, Consolidated Revenue Interest                        
Schedule of Investments [Line Items]                        
Amortized Cost [22],[45] $ 0 [4] $ 0 [6]                    
Fair Value [22],[45] $ 1,555,000 [3],[4] $ 1,781,000 [6]                    
% of Net Assets [22],[45] 0.00% [4] 0.00% [6]                    
Investment, Identifier [Axis]: Valley Electric Company, Inc., Construction & Engineering, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [22],[35] 8.00% [4],[31] 8.00% [6]                    
Interest, PIK [22],[35] 10.00% [4],[31] 10.00% [6]                    
Floor [22],[35] 0.00% [4],[31] 0.00% [6]                    
Principal Value [22],[35] $ 33,301,000 [4],[31] $ 33,301,000 [6]                    
Amortized Cost [22],[35] 33,301,000 [4],[31] 33,301,000 [6]                    
Fair Value [22],[35] $ 33,301,000 [3],[4],[31] $ 33,301,000 [6]                    
% of Net Assets [22],[35] 0.80% [4],[31] 0.80% [6]                    
Investment, Identifier [Axis]: Valley Electric Company, Inc., Construction & Engineering, First Lien Term Loan B                        
Schedule of Investments [Line Items]                        
Investment interest rate [22],[35] 8.00% [4],[31] 8.00% [6]                    
Interest, PIK [22],[35] 4.50% [4],[31] 4.50% [6]                    
Floor [22],[35] 0.00% [4],[31] 0.00% [6]                    
Principal Value [22],[35] $ 13,000,000 [4],[31] $ 13,000,000 [6]                    
Amortized Cost [22],[35] 13,000,000 [4],[31] 13,000,000 [6]                    
Fair Value [22],[35] $ 13,000,000 [3],[4],[31] $ 13,000,000 [6]                    
% of Net Assets [22],[35] 0.30% [4],[31] 0.30% [6]                    
Investment, Identifier [Axis]: Valley Electric Company, Inc., Construction & Engineering, First Lien Term Loan to Valley Electric Co. of Mt. Vernon, Inc.                        
Schedule of Investments [Line Items]                        
Investment interest rate [22],[30],[31],[35] 8.67% [4] 8.00% [6]                    
Basis spread rate [22],[30],[31],[35] 5.00% [4] 5.00% [6]                    
Interest, PIK [22],[30],[31],[35] 2.50% [4] 2.50% [6]                    
Floor [22],[30],[31],[35] 3.00% [4] 3.00% [6]                    
Principal Value [22],[30],[31],[35] $ 10,452,000 [4] $ 10,452,000 [6]                    
Amortized Cost [22],[30],[31],[35] 10,452,000 [4] 10,452,000 [6]                    
Fair Value [22],[30],[31],[35] $ 10,452,000 [3],[4] $ 10,452,000 [6]                    
% of Net Assets [22],[30],[31],[35] 0.30% [4] 0.30% [6]                    
Investment, Identifier [Axis]: Venio LLC - First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Interest, PIK   1.00%                    
Investment, Identifier [Axis]: Venio LLC, Professional Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Interest, PIK [35]   1.00%                    
Floor [35]   0.00%                    
Principal Value [35]   $ 14,554,000                    
Amortized Cost [35]   14,554,000                    
Fair Value [3],[35]   $ 12,199,000                    
% of Net Assets [35]   0.30%                    
Investment, Identifier [Axis]: ViaPath Technologies. (f/k/a Global Tel*Link Corporation), Diversified Telecommunication Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36]   5.92%                    
Basis spread rate [30],[31],[36]   4.25%                    
Floor [30],[31],[36]   0.00%                    
Principal Value [30],[31],[36]   $ 9,698,000                    
Amortized Cost [30],[31],[36]   9,474,000                    
Fair Value [3],[30],[31],[36]   $ 9,125,000                    
% of Net Assets [30],[31],[36]   0.20%                    
Investment, Identifier [Axis]: ViaPath Technologies. (f/k/a Global Tel*Link Corporation), Diversified Telecommunication Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36]   11.63%                    
Basis spread rate [30],[31],[36]   10.00%                    
Floor [30],[31],[36]   0.00%                    
Principal Value [30],[31],[36]   $ 122,670,000                    
Amortized Cost [30],[31],[36]   121,746,000                    
Fair Value [3],[30],[31],[36]   $ 122,266,000                    
% of Net Assets [30],[31],[36]   3.00%                    
Investment, Identifier [Axis]: ViaPath Technologies., Diversified Telecommunication Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 7.06%                      
Basis spread rate [30],[31],[36] 4.25%                      
Floor [30],[31],[36] 0.00%                      
Principal Value [30],[31],[36] $ 9,698,000                      
Amortized Cost [30],[31],[36] 9,490,000                      
Fair Value [3],[30],[31],[36] $ 9,072,000                      
% of Net Assets [30],[31],[36] 0.20%                      
Investment, Identifier [Axis]: ViaPath Technologies., Diversified Telecommunication Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 12.73%                      
Basis spread rate [30],[31],[36] 10.00%                      
Floor [30],[31],[36] 0.00%                      
Principal Value [30],[31],[36] $ 122,670,000                      
Amortized Cost [30],[31],[36] 121,799,000                      
Fair Value [3],[30],[31],[36] $ 119,457,000                      
% of Net Assets [30],[31],[36] 3.00%                      
Investment, Identifier [Axis]: Victor Technology, LLC, Commercial Services & Supplies, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31] 11.17% 9.75%                    
Basis spread rate [30],[31] 7.50% 7.50%                    
Floor [30],[31] 1.00% 1.00%                    
Principal Value [30],[31] $ 29,775,000 $ 29,850,000                    
Amortized Cost [30],[31] 29,775,000 29,850,000                    
Fair Value [3],[30],[31] $ 29,506,000 $ 29,850,000                    
% of Net Assets [30],[31] 0.70% 0.70%                    
Investment, Identifier [Axis]: Vision Solutions, Inc                        
Schedule of Investments [Line Items]                        
Fair Value $ 76,383,000                      
Investment, Identifier [Axis]: Vision Solutions, Inc., IT Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[33],[36]   8.43%                    
Basis spread rate [30],[31],[33],[36]   7.25%                    
Floor [30],[31],[33],[36]   0.75%                    
Principal Value [30],[31],[33],[36]   $ 80,000,000                    
Amortized Cost [30],[31],[33],[36]   79,216,000                    
Fair Value [3],[30],[31],[33],[36]   $ 78,320,000                    
% of Net Assets [30],[31],[33],[36]   1.90%                    
Investment, Identifier [Axis]: Voya CLO 2012-4, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 6.01% 3.74%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 40,613,000 $ 40,613,000                    
Amortized Cost [12],[37] 28,732,000 28,996,000                    
Fair Value [3],[12],[37] $ 22,547,000 $ 22,424,000                    
% of Net Assets [12],[37] 0.60% 0.50%                    
Investment, Identifier [Axis]: Voya CLO 2014-1, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 0.63% 0.00% [40]                    
Floor [12],[37] 0.00% 0.00% [40]                    
Principal Value [12],[37] $ 40,773,000 $ 40,773,000 [40]                    
Amortized Cost [12],[37] 25,089,000 26,014,000 [40]                    
Fair Value [3],[12],[37] $ 15,694,000 $ 16,336,000 [40]                    
% of Net Assets [12],[37] 0.40% 0.40% [40]                    
Investment, Identifier [Axis]: Voya CLO 2016-3, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 8.66% 7.08%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 28,100,000 $ 28,100,000                    
Amortized Cost [12],[37] 23,247,000 23,495,000                    
Fair Value [3],[12],[37] $ 18,308,000 $ 18,811,000                    
% of Net Assets [12],[37] 0.50% 0.50%                    
Investment, Identifier [Axis]: Voya CLO 2017-3, Ltd., Structured Finance, Subordinated Structured Note                        
Schedule of Investments [Line Items]                        
Investment interest rate [12],[37] 13.91% 12.14%                    
Floor [12],[37] 0.00% 0.00%                    
Principal Value [12],[37] $ 44,885,000 $ 44,885,000                    
Amortized Cost [12],[37] 49,824,000 49,276,000                    
Fair Value [3],[12],[37] $ 39,955,000 $ 41,072,000                    
% of Net Assets [12],[37] 1.00% 1.10%                    
Investment, Identifier [Axis]: WatchGuard Technologies, Inc., IT Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36] 8.28%                      
Basis spread rate [30],[36] 5.25%                      
Floor [30],[36] 0.75%                      
Principal Value [30],[36] $ 35,000,000                      
Amortized Cost [30],[36] 35,000,000                      
Fair Value [3],[30],[36] $ 34,053,000                      
% of Net Assets [30],[36] 0.90%                      
Investment, Identifier [Axis]: Wellful Inc., Food & Staples Retailing, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36] 10.42%                      
Basis spread rate [30],[36] 6.25%                      
Floor [30],[36] 0.75%                      
Principal Value [30],[36] $ 14,037,000                      
Amortized Cost [30],[36] 13,362,000                      
Fair Value [3],[30],[36] $ 13,505,000                      
% of Net Assets [30],[36] 0.30%                      
Investment, Identifier [Axis]: Wellful Inc., Food & Staples Retailing, Incremental First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[36] 10.42%                      
Basis spread rate [30],[36] 6.25%                      
Floor [30],[36] 0.75%                      
Principal Value [30],[36] $ 14,928,000                      
Amortized Cost [30],[36] 14,075,000                      
Fair Value [3],[30],[36] $ 13,641,000                      
% of Net Assets [30],[36] 0.30%                      
Investment, Identifier [Axis]: Wellpath Holdings, Inc. (f/k/a CCS-CMGC Holdings, Inc.), Health Care Providers & Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36]   7.07%                    
Basis spread rate [30],[31],[36]   5.50%                    
Floor [30],[31],[36]   0.00%                    
Principal Value [30],[31],[36]   $ 14,389,000                    
Amortized Cost [30],[31],[36]   14,229,000                    
Fair Value [3],[30],[31],[36]   $ 14,193,000                    
% of Net Assets [30],[31],[36]   0.30%                    
Investment, Identifier [Axis]: Wellpath Holdings, Inc. (f/k/a CCS-CMGC Holdings, Inc.), Health Care Providers & Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36]   10.57%                    
Basis spread rate [30],[31],[36]   9.00%                    
Floor [30],[31],[36]   0.00%                    
Principal Value [30],[31],[36]   $ 37,000,000                    
Amortized Cost [30],[31],[36]   36,621,000                    
Fair Value [3],[30],[31],[36]   $ 36,464,000                    
% of Net Assets [30],[31],[36]   0.90%                    
Investment, Identifier [Axis]: Wellpath Holdings, Inc., Health Care Providers & Services, First Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 8.62%                      
Basis spread rate [30],[31],[36] 5.50%                      
Floor [30],[31],[36] 0.00%                      
Principal Value [30],[31],[36] $ 14,379,000                      
Amortized Cost [30],[31],[36] 14,231,000                      
Fair Value [3],[30],[31],[36] $ 13,865,000                      
% of Net Assets [30],[31],[36] 0.30%                      
Investment, Identifier [Axis]: Wellpath Holdings, Inc., Health Care Providers & Services, Second Lien Term Loan                        
Schedule of Investments [Line Items]                        
Investment interest rate [30],[31],[36] 12.12%                      
Basis spread rate [30],[31],[36] 9.00%                      
Floor [30],[31],[36] 0.00%                      
Principal Value [30],[31],[36] $ 37,000,000                      
Amortized Cost [30],[31],[36] 36,643,000                      
Fair Value [3],[30],[31],[36] $ 34,628,000                      
% of Net Assets [30],[31],[36] 0.90%                      
[1] The following shows the composition of our investment portfolio at cost by control designation, investment type and by industry as of September 30, 2022:
Industry1st Lien
Term Loan
2nd Lien
Term Loan
Subordinated Structured NotesUnsecured Debt
Equity (B)
Cost Total
Control Investments
Aerospace & Defense$54,797 $— $— $— $55,581 $110,378 
Commercial Services & Supplies124,680 — — 7,200 27,349 159,229 
Construction & Engineering56,753 — — — 11,550 68,303 
Consumer Finance452,388 — — — 81,303 533,691 
Diversified Consumer Services— — — — 2,378 2,378 
Energy Equipment & Services81,566 — — — 221,150 302,716 
Equity Real Estate Investment Trusts (REITs)651,586 — — — 15,430 667,016 
Health Care Providers & Services278,429 — — — 45,118 323,547 
Machinery33,622 — — — 6,866 40,488 
Media29,723 — — — — 29,723 
Online Lending25,080 — — — — 25,080 
Personal Products73,104 — — — 189,295 262,399 
Trading Companies & Distributors32,708 — — — 32,500 65,208 
Structured Finance (A)196,200 — — — — 196,200 
Total Control Investments$2,090,636 $— $— $7,200 $688,520 $2,786,356 
Affiliate Investments
Commercial Services & Supplies$— $— $— $— $9,523 $9,523 
Diversified Consumer Services70,639 153,931 — — — 224,570 
Textiles, Apparel & Luxury Goods— — — — 2,805 2,805 
 Total Affiliate Investments $70,639 $153,931 $— $— $12,328 $236,898 
Non-Control/Non-Affiliate Investments
Air Freight & Logistics$92,620 $95,000 $— $— $— $187,620 
Auto Components22,348 112,179 — — — 134,527 
Building Products— 35,000 — — — 35,000 
Capital Markets— 42,500 — — — 42,500 
Commercial Services & Supplies68,786 185,304 — — 1,500 255,590 
Communications Equipment9,214 50,585 — — — 59,799 
Consumer Finance47,028 — — — — 47,028 
Distributors168,207 103,730 — — — 271,937 
Diversified Consumer Services— 22,713 — — — 22,713 
Diversified Financial Services36,816 — — — — 36,816 
Diversified Telecommunication Services44,266 121,799 — — — 166,065 
Food & Staples Retailing27,437 — — — — 27,437 
Food Products— 131,036 — — — 131,036 
Health Care Equipment & Supplies— 7,484 — — — 7,484 
Health Care Providers & Services181,414 159,664 — — 1,546 342,624 
Health Care Technology128,973 — — — — 128,973 
Hotels, Restaurants & Leisure23,127 — — — — 23,127 
Household Durables96,475 29,777 — — 2,001 128,253 
Household Products20,874 — — — — 20,874 
Interactive Media & Services226,054 — — — — 226,054 
Internet & Direct Marketing Retail20,217 — — — — 20,217 
IT Services211,406 147,925 — — — 359,331 
Leisure Products67,879 — — — 67,880 
Machinery57,749 9,983 — — — 67,732 
Media51,098 — — — 26,991 78,089 
Pharmaceuticals25,536 — — — — 25,536 
Professional Services66,785 123,606 — — — 190,391 
Industry1st Lien
Term Loan
2nd Lien
Term Loan
Subordinated Structured NotesUnsecured Debt
Equity (B)
Cost Total
Software— 52,309 — — — 52,309 
Textiles, Apparel & Luxury Goods165,628 8,939 — — — 174,567 
Structured Finance (A)— — 990,723 — — 990,723 
 Total Non-Control/Non-Affiliate $1,859,937 $1,439,533 $990,723 $— $32,039 $4,322,232 
Total Portfolio Investment Cost$4,021,212 $1,593,464 $990,723 $7,200 $732,887 $7,345,486 
The following table shows the composition of our investment portfolio at fair value by control designation, investment type and by industry as of September 30, 2022:
Industry1st Lien
Term Loan
2nd Lien
Term Loan
Subordinated Structured NotesUnsecured Debt
Equity (B)
Fair Value TotalFair Value % of Net Assets Applicable to Common Stock
Control Investments
 Aerospace & Defense $54,797 $— $— $— $7,225 $62,022 1.6 %
 Commercial Services & Supplies 76,017 — — 7,200 280 83,497 2.1 %
 Construction & Engineering 56,753 — — — 84,926 141,679 3.6 %
 Consumer Finance 454,041 — — — 268,049 722,090 18.2 %
 Diversified Consumer Services — — — — 3,833 3,833 0.1 %
 Energy Equipment & Services 81,566 — — — 37,697 119,263 3.0 %
Equity Real Estate Investment Trusts (REITs)651,586 — — — 761,144 1,412,730 35.7 %
 Health Care Providers & Services 278,429 — — — 129,105 407,534 10.3 %
 Machinery 33,622 — — — 22,496 56,118 1.4 %
 Media 29,723 — — — 84,971 114,694 2.9 %
 Online Lending 25,058 — — — — 25,058 0.6 %
 Personal Products 65,336 — — — — 65,336 1.6 %
 Trading Companies & Distributors 32,708 — — — 3,406 36,114 0.9 %
Structured Finance (A)194,510 — — — — 194,510 4.9 %
Total Control Investments$2,034,146 $— $— $7,200 $1,403,132 $3,444,478 86.9 %
Fair Value % of Net Assets51.3 %— %— %0.2 %35.4 %86.9 %
Affiliate Investments
Commercial Services & Supplies$— $— $— $— $9,755 $9,755 0.2 %
Diversified Consumer Services69,029 151,818 — — 66,904 287,751 7.3 %
Textiles, Apparel & Luxury Goods— — — — 19,769 19,769 0.5 %
Total Affiliate Investments$69,029 $151,818 $— $— $96,428 $317,275 8.0 %
Fair Value % of Net Assets1.7 %3.8 %— %— %2.5 %8.0 %
Non-Control/Non-Affiliate Investments
Air Freight & Logistics$92,978 $95,000 $— $— $— $187,978 4.7 %
Auto Components22,251 100,510 — — — 122,761 3.1 %
Building Products— 34,669 — — — 34,669 0.9 %
Capital Markets— 41,640 — — — 41,640 1.1 %
Commercial Services & Supplies69,021 181,895 — — 10,145 261,061 6.6 %
Communications Equipment8,743 47,864 — — — 56,607 1.4 %
Consumer Finance26,681 — — — — 26,681 0.7 %
Distributors160,832 6,076 — — 2,012 168,920 4.2 %
Diversified Consumer Services— 19,717 — — — 19,717 0.5 %
Diversified Financial Services36,816 — — — — 36,816 0.9 %
Diversified Telecommunication Services43,854 119,457 — — — 163,311 4.1 %
Food & Staples Retailing27,146 — — — — 27,146 0.7 %
Food Products— 125,700 — — — 125,700 3.2 %
Health Care Equipment & Supplies— 6,894 — — — 6,894 0.2 %
Health Care Providers & Services179,381 157,370 — — 1,542 338,293 8.4 %
Health Care Technology128,927 — — — — 128,927 3.3 %
Hotels, Restaurants & Leisure22,234 — — — — 22,234 0.6 %
Industry1st Lien
Term Loan
2nd Lien
Term Loan
Subordinated Structured NotesUnsecured Debt
Equity (B)
Fair Value TotalFair Value % of Net Assets Applicable to Common Stock
Household Durables96,485 26,364 — — — 122,849 3.1 %
Household Products20,874 — — — — 20,874 0.5 %
Interactive Media & Services226,054 — — — — 226,054 5.7 %
Internet & Direct Marketing Retail16,946 — — — — 16,946 0.4 %
IT Services210,459 138,251 — — — 348,710 8.8 %
Leisure Products67,534 — — — — 67,534 1.7 %
Machinery56,713 9,749 — — — 66,462 1.7 %
Media50,874 — — — 87 50,961 1.3 %
Pharmaceuticals25,829 — — — — 25,829 0.7 %
Professional Services66,108 119,563 — — — 185,671 4.7 %
Software— 50,013 — — — 50,013 1.3 %
Textiles, Apparel & Luxury Goods165,628 8,734 — — — 174,362 4.4 %
Structured Finance (A)— — 695,292 — — 695,292 17.5 %
Total Non-Control/Non-Affiliate$1,822,368 $1,289,466 $695,292 $— $13,786 $3,820,912 96.4 %
Fair Value % of Net Assets46.0 %32.6 %17.5 %— %0.3 %96.4 %
Total Portfolio$3,925,543 $1,441,284 $695,292 $7,200 $1,513,346 $7,582,665 191.3 %
Fair Value % of Net Assets99.0 %36.4 %17.5 %0.2 %38.2 %191.3 %
(A) Our SSN investments do not have industry concentrations and as such have been separated in the tables above.
(B) Equity, unless specifically stated otherwise, includes our investments in preferred stock, common stock, membership interests, net profits interests, net operating income interests, net revenue interests, overriding royalty interests, escrows receivable, and warrants.
[2] The terms “Prospect,” “the Company,” “we,” “us” and “our” mean Prospect Capital Corporation and its subsidiaries unless the context specifically requires otherwise. The securities in which Prospect has invested were acquired in transactions that were exempt from registration under the Securities Act of 1933, as amended (the “Securities Act”). These securities may be resold only in transactions that are exempt from registration under the Securities Act.
[3] Fair value is determined by or under the direction of our Board of Directors. Unless otherwise indicated by endnote 47 below, all of our investments are valued using significant unobservable inputs. In accordance with ASC 820, such investments are classified as Level 3 within the fair value hierarchy. See Notes 2 and 3 within the accompanying notes to consolidated financial statements for further discussion.
[4] As defined in the 1940 Act, we are deemed to “Control” these portfolio companies because we own more than 25% of the portfolio company’s outstanding voting securities. Transactions during the three months ended September 30, 2022 with these controlled investments were as follows:
Controlled CompaniesFair Value at June 30, 2022Gross Additions (Cost)(A)Gross Reductions (Cost)(B)Net unrealized
gains (losses)
Fair Value at September 30, 2022Interest
income
Dividend
income
Other
income
Net realized
gains (losses)
CP Energy Services Inc.$64,260 $1,521 $— $(608)$65,173 $1,521 $— $— $— 
CP Energy - Spartan Energy Services, Inc.48,441 699 — (8,362)40,778 700 — — — 
Credit Central Loan Company, LLC76,935 1,882 — (11,360)67,457 1,859 — — — 
Echelon Transportation, LLC65,766 1,588 — (5,332)62,022 869 — — — 
First Tower Finance Company LLC607,283 9,577 — (11,578)605,282 20,235 — — — 
Freedom Marine Solutions, LLC13,899 — — (587)13,312 — — — — 
InterDent, Inc.406,194 4,981 — (3,641)407,534 7,508 — — — 
Kickapoo Ranch Pet Resort3,833 — — — 3,833 — 50 — — 
MITY, Inc.59,999 — (573)(1,598)57,828 1,897 — — — 
National Property REIT Corp.1,615,737 77,600 (52,500)(8,539)1,632,298 20,272 — 20,665 — 
Nationwide Loan Company LLC50,400 522 — (1,571)49,351 1,045 — — — 
NMMB, Inc.109,943 — — 4,751 114,694 818 1,093 — (1,093)
Pacific World Corporation59,179 2,003 — 4,154 65,336 1,508 — — — 
R-V Industries, Inc.56,923 — — (805)56,118 985 — — — 
Universal Turbine Parts, LLC31,147 — (8)4,975 36,114 688 — — — 
USES Corp.22,395 6,114 — (2,840)25,669 173 — — — 
Valley Electric Company, Inc.145,983 — 44 (4,348)141,679 2,185 44 — — 
Total$3,438,317 $106,487 $(53,037)$(47,289)$3,444,478 $62,263 $1,187 $20,665 $(1,093)
(A) Gross additions include increases in the cost basis of the investments resulting from new portfolio investments, OID accretion and PIK interest, and any transfer of investments.
(B) Gross reductions include decreases in the cost basis of investments resulting from principal collections related to investments repayments or sales, impairments, and any transfer of investments.
[5] Represents non-income producing security that has not paid a dividend in the year preceding the reporting date.
[6] As defined in the 1940 Act, we are deemed to “Control” these portfolio companies because we own more than 25% of the portfolio company’s outstanding voting securities. Transactions during the year ended June 30, 2022 with these controlled investments were as follows:
Portfolio CompanyFair Value at June 30, 2021Gross Additions (Cost)(A)Gross Reductions (Cost)(B)Net unrealized
gains (losses)
Fair Value at June 30, 2022Interest
income
Dividend
income
Other
income
Net realized
gains (losses)
CP Energy Services Inc.$44,621 $11,277 $— $8,362 $64,260 $5,424 $— $— $— 
CP Energy - Spartan Energy Services, LLC26,866 10,992 — 10,583 48,441 1,884 — — 
Credit Central Loan Company, LLC78,023 9,599 (1,295)(9,392)76,935 15,106 — — — 
Echelon Transportation LLC84,240 10,646 — (29,120)65,766 7,695 — — — 
First Tower Finance Company LLC592,356 42,669 (11,153)(16,589)607,283 74,501 — 7,898 — 
Freedom Marine Solutions, LLC11,717 1,000 — 1,182 13,899 — — — — 
InterDent, Inc.412,339 36,123 (246)(42,022)406,194 26,517 — 200 — 
Kickapoo Ranch Pet Resort3,833 — — — 3,833 — 25 — — 
MITY, Inc.49,680 4,956 — 5,363 59,999 7,317 — — 12 
National Property REIT Corp.1,189,755 410,867 (301,382)316,497 1,615,737 63,818 — 69,772 — 
Nationwide Loan Company LLC47,993 — — 2,407 50,400 4,108 2,650 405 — 
NMMB, Inc.46,888 25,000 (13,021)51,076 109,943 1,206 8,383 450 3,946 
Pacific World Corporation71,097 11,151 — (23,069)59,179 4,779 — — — 
R-V Industries, Inc.49,693 5,000 — 2,230 56,923 3,051 441 125 — 
Universal Turbine Parts, LLC27,106 — (33)4,074 31,147 2,354 — — — 
USES Corp.33,815 — — (11,420)22,395 203 — — — 
Valley Electric Company, Inc.149,695 13,022 (14,698)(2,036)145,983 7,531 3,150 926 — 
Total$2,919,717 $592,302 $(341,828)$268,126 $3,438,317 $225,494 $14,649 $79,782 $3,958 
(A) Gross additions include increases in the cost basis of the investments resulting from new portfolio investments, PIK interest, and any transfer of investments.
(B) Gross reductions include decreases in the cost basis of investments resulting from principal collections related to investments repayments or sales, impairments, and any transfer of investments.
[7] The following table shows the composition of our investment portfolio at cost by control designation, investment type and by industry as of June 30, 2022:
Industry1st Lien
Term Loan
2nd Lien
Term Loan
Subordinated Structured NotesUnsecured Debt
Equity (B)
Cost Total
Control Investments
Aerospace & Defense$53,209 $— $— $— $55,581 $108,790 
Commercial Services & Supplies119,139 — — 7,200 27,349 153,688 
Construction & Engineering56,753 — — — 11,506 68,259 
Consumer Finance450,387 — — — 71,323 521,710 
Diversified Consumer Services— — — — 2,378 2,378 
Energy Equipment & Services79,346 — — — 221,150 300,496 
Equity Real Estate Investment Trusts (REITs)631,486 — — — 15,830 647,316 
Health Care Providers & Services273,448 — — — 45,118 318,566 
Machinery33,622 — — — 6,866 40,488 
Media29,723 — — — — 29,723 
Online Lending29,080 — — — — 29,080 
Personal Products71,101 — — — 189,295 260,396 
Trading Companies & Distributors32,716 — — — 32,500 65,216 
Structured Finance (A)186,800 — — — — 186,800 
    Total Control Investments$2,046,810 $— $— $7,200 $678,896 $2,732,906 
Affiliate Investments
Commercial Services & Supplies$3,680 $— $— $— $10,303 $13,983 
Diversified Consumer Services71,382 153,931 — — — 225,313 
Textiles, Apparel & Luxury Goods— — — — 2,805 2,805 
Total Affiliate Investments$75,062 $153,931 $— $— $13,108 $242,101 
Non-Control/Non-Affiliate Investments
Air Freight & Logistics$83,077 $95,000 $— $— $— $178,077 
Auto Components22,388 82,111 — — — 104,499 
Building Products— 35,000 — — — 35,000 
Capital Markets— 42,500 — — — 42,500 
Commercial Services & Supplies70,342 185,282 — — 1,500 257,124 
Communications Equipment9,202 50,578 — — — 59,780 
Consumer Finance47,029 — — — — 47,029 
Distributors174,800 103,730 — — — 278,530 
Diversified Consumer Services— 22,702 — — — 22,702 
Diversified Financial Services36,878 — — — — 36,878 
Diversified Telecommunication Services44,220 121,746 — — — 165,966 
Food & Staples Retailing9,262 — — — — 9,262 
Food Products— 130,998 — — — 130,998 
Health Care Equipment & Supplies— 7,483 — — — 7,483 
Health Care Providers & Services182,160 158,704 — — 1,546 342,410 
Health Care Technology89,675 — — — — 89,675 
Hotels, Restaurants & Leisure23,359 — — — — 23,359 
Household Durables91,406 29,768 — — 2,001 123,175 
Household Products20,936 — — — — 20,936 
Insurance— 21,966 — — — 21,966 
Interactive Media & Services233,204 — — — — 233,204 
Internet & Direct Marketing Retail20,212 — — — — 20,212 
IT Services176,855 128,456 — — — 305,311 
Leisure Products39,014 — — — 39,015 
Machinery58,310 9,982 — — — 68,292 
Media51,348 — — — 26,991 78,339 
Paper & Forest Products— 11,445 — — — 11,445 
Pharmaceuticals25,557 — — — — 25,557 
Professional Services81,536 123,496 — — — 205,032 
Software— 52,295 — — — 52,295 
Technology Hardware, Storage & Peripherals— 12,447 — — — 12,447 
Textiles, Apparel & Luxury Goods166,686 8,937 — — — 175,623 
Structured Finance— — 997,703 — — 997,703 
Total Non-Control/Non-Affiliate $1,757,456 $1,434,626 $997,703 $— $32,039 $4,221,824 
Total Portfolio Investment Cost$3,879,328 $1,588,557 $997,703 $7,200 $724,043 $7,196,831 
The following table shows the composition of our investment portfolio at fair value by control designation, investment type and by industry as of June 30, 2022:
Industry1st Lien
Term Loan
2nd Lien
Term Loan
Subordinated Structured NotesUnsecured Debt
Equity (B)
Fair Value TotalFair Value % of Net Assets
Control Investments
Aerospace & Defense$53,209 $— $— $— $12,557 $65,766 1.6 %
Commercial Services & Supplies73,316 — — 7,200 1,878 82,394 2.0 %
Construction & Engineering56,753 — — — 89,230 145,983 3.5 %
Consumer Finance452,317 — — — 282,301 734,618 17.8 %
Diversified Consumer Services— — — — 3,833 3,833 0.1 %
Energy Equipment & Services79,346 — — — 47,254 126,600 3.1 %
Equity Real Estate Investment Trusts (REITs)631,486 — — — 768,371 1,399,857 34.0 %
Health Care Providers & Services273,448 — — — 132,746 406,194 9.9 %
Machinery33,622 — — — 23,301 56,923 1.4 %
Media29,723 — — — 80,220 109,943 2.7 %
Online Lending29,080 — — — — 29,080 0.7 %
Personal Products59,179 — — — — 59,179 1.4 %
Trading Companies & Distributors31,147 — — — — 31,147 0.8 %
Structured Finance (A)186,800 — — — — 186,800 4.5 %
Total Control Investments$1,989,426 $— $— $7,200 $1,441,691 $3,438,317 83.5 %
Fair Value % of Net Assets48.3 %— %— %0.2 %35.0 %83.5 %
Affiliate Investments
Commerical Sevices & Supplies$3,680 $— $— $— $13,324 $17,004 0.4 %
Diversified Consumer Services71,382 153,931 — — 114,940 340,253 8.2 %
Textiles, Apparel & Luxury Goods— — — — 36,007 36,007 0.9 %
Total Affiliate Investments$75,062 $153,931 $— $— $164,271 $393,264 9.5 %
Fair Value % of Net Assets1.8 %3.7 %— %— %4.0 %9.5 %
Non-Control/Non-Affiliate Investments
Air Freight & Logistics$83,414 $95,000 $— $— $— $178,414 4.3 %
Auto Components22,210 81,326 — — — 103,536 2.5 %
Commercial Services & Supplies70,221 183,889 — — 3,457 257,567 6.3 %
Communications Equipment8,962 48,594 — — — 57,556 1.4 %
Building Products— 34,697 — — — 34,697 0.8 %
Capital Markets— 41,574 — — — 41,574 1.0 %
Consumer Finance30,550 — — — — 30,550 0.7 %
Distributors174,001 6,107 — — — 180,108 4.4 %
Diversified Consumer Services— 21,583 — — — 21,583 0.5 %
Diversified Financial Services36,878 — — — — 36,878 0.9 %
Diversified Telecommunication Services44,090 122,266 — — — 166,356 4.0 %
Food & Staples Retailing9,440 — — — — 9,440 0.2 %
Food Products— 127,436 — — — 127,436 3.1 %
Health Care Equipment & Supplies— 6,966 — — — 6,966 0.2 %
Health Care Providers & Services181,747 158,843 — — 1,807 342,397 8.4 %
Health Care Technology89,675 — — — — 89,675 2.2 %
Hotels, Restaurants & Leisure22,651 — — — — 22,651 0.5 %
Household Durables91,406 27,633 — — 3,613 122,652 3.0 %
Household Products20,936 — — — — 20,936 0.5 %
Insurance— 22,280 — — — 22,280 0.5 %
Interactive Media & Services233,204 — — — — 233,204 5.8 %
Internet & Direct Marketing Retail17,454 — — — — 17,454 0.4 %
IT Services176,855 126,826 — — — 303,681 7.4 %
Leisure Products38,757 — — — — 38,757 0.9 %
Machinery57,866 9,669 — — — 67,535 1.6 %
Media51,197 — — — — 51,197 1.2 %
Paper & Forest Products— 4,952 — — — 4,952 0.1 %
Pharmaceuticals25,962 — — — — 25,962 0.6 %
Industry1st Lien
Term Loan
2nd Lien
Term Loan
Subordinated Structured NotesUnsecured Debt
Equity (B)
Fair Value TotalFair Value % of Net Assets
Professional Services79,056 124,200 — — — 203,256 4.9 %
Software— 52,500 — — — 52,500 1.3 %
Technology Hardware, Storage & Peripherals— 12,398 — — — 12,398 0.3 %
Textiles, Apparel & Luxury Goods166,686 8,666 — — — 175,352 4.4 %
Structured Finance— — 711,429 — — 711,429 17.3 %
Total Non-Control/Non-Affiliate$1,733,218 $1,317,405 $711,429 $— $8,877 $3,770,929 91.6 %
Fair Value % of Net Assets42.1 %32.0 %17.3 %— %0.2 %91.6 %
Total Portfolio$3,797,706 $1,471,336 $711,429 $7,200 $1,614,839 $7,602,510 184.6 %
Fair Value % of Net Assets92.2 %35.7 %17.3 %0.2 %39.2 %184.6 %
(A) Our SSN investments do not have industry concentrations and as such have been separated in the tables above.
(B) Equity, unless specifically stated otherwise, includes our investments in preferred stock, common stock, membership interests, net profits interests, net operating income interests, net revenue interests, overriding royalty interests, escrows receivable, and warrants.
[8] Energy Solutions Holdings Inc., a consolidated entity in which we own 100% of the equity, owns 100% of Freedom Marine Solutions, LLC (“Freedom Marine”), which owns Vessel Company, LLC, Vessel Company II, LLC and Vessel Company III, LLC. We report Freedom Marine as a separate controlled company.
[9] As defined in the 1940 Act, we are deemed to be an “Affiliated company” of these portfolio companies because we own more than 5% of the portfolio company’s outstanding voting securities. Transactions during the three months ended September 30, 2022 with these affiliated investments were as follows:
Affiliated CompaniesFair Value at June 30, 2022Gross Additions (Cost)(A)Gross Reductions (Cost)(B)Net unrealized
gains (losses)
Fair Value at September 30, 2022Interest
income
Dividend
income
Other
income
Net realized
gains (losses)
Nixon, Inc.— — — — — — — — — 
PGX Holdings, Inc.340,253 — (743)(51,759)287,751 7,430 — 133 — 
RGIS Services, LLC17,004 — (4,460)(2,789)9,755 31 1,374 — — 
Targus Cayman HoldCo Limited36,007 — — (16,238)19,769 — — — — 
Total$393,264 $— $(5,203)$(70,786)$317,275 $7,461 $1,374 $133 $— 
(A) Gross additions include increases in the cost basis of the investments resulting from new portfolio investments, PIK interest, and any transfer of investments.
(B) Gross reductions include decreases in the cost basis of investments resulting from principal collections related to investments repayments or sales, impairments, and any transfer of investments.
[10] As defined in the 1940 Act, we are deemed to be an “Affiliated company” of these portfolio companies because we own more than 5% of the portfolio company’s outstanding voting securities. Transactions during the year ended June 30, 2022 with these affiliated investments were as follows:
Portfolio CompanyFair Value at June 30, 2021Gross Additions (Cost)(A)Gross Reductions (Cost)(B)Net unrealized
gains (losses)
Fair Value at June 30, 2022Interest
income
Dividend
income
Other
income
Net realized
gains (losses)
Nixon, Inc.$— $— $— $— $— $— $— $— $— 
PGX Holdings, Inc.$313,089 $229,984 $(190,825)$(11,995)$340,253 $30,032 $— $4,032 $— 
RGIS Services, LLC$17,440 $— $— $(436)$17,004 $317 $256 $— $— 
Targus Cayman HoldCo Limited$26,205 $— $— $9,802 $36,007 $— $— $— $— 
356,734 229,984 (190,825)(2,629)393,264 30,349 256 4,032 — 
(A)    Gross additions include increases in the cost basis of the investments resulting from new portfolio investments, PIK interest, and any transfer of investments.
(B)    Gross reductions include decreases in the cost basis of investments resulting from principal collections related to investments repayments or sales, impairments, and any transfer of investments.
[11] Credit Central Holdings of Delaware, LLC (“Credit Central Delaware”), a consolidated entity in which we own 100% of the membership interests, owns 99.8% and 99.0% of Credit Central Loan Company, LLC (f/k/a Credit Central Holdings, LLC (“Credit Central”)) as of September 30, 2022 and June 30, 2022, respectively. Credit Central owns 100% of each of Credit Central, LLC; Credit Central South, LLC; Credit Central of Texas, LLC; and Credit Central of Tennessee, LLC, the operating companies. We report Credit Central as a separate controlled company. Effective December 10, 2021, Credit Central’s term loan lenders were granted a first priority security interest on certain assets of Credit Central and our investment became classified as a First Lien Term Loan.
[12] Investment has been designated as an investment not “qualifying” under Section 55(a) of the Investment Company Act of 1940 (the “1940 Act”). Under the 1940 Act, we may not acquire any non-qualifying asset unless, at the time such acquisition is made, qualifying assets represent at least 70% of our total assets. As of September 30, 2022 and June 30, 2022, our qualifying assets, as a percentage of total assets, stood at 81.06% and 80.64%, respectively. We monitor the status of these assets on an ongoing basis.
[13] CP Holdings of Delaware LLC (“CP Holdings”), a consolidated entity in which we own 100% of the membership interests, owns 99.8% of CP Energy Services Inc. (“CP Energy”) as of September 30, 2022 and June 30, 2022. CP Energy owns directly or indirectly 100% of each of CP Well Testing, LLC; Wright Foster Disposals, LLC; Foster Testing Co., Inc.; ProHaul Transports, LLC; and Wright Trucking, Inc. We report CP Energy as a separate controlled company. In June 2019, CP Energy purchased a controlling interest in the common equity of Spartan Energy Holdings, Inc. (“Spartan Holdings”), which owns 100% of Spartan Energy Services, LLC (“Spartan”), a portfolio company of Prospect with $27,347 in first lien term loans (the “Spartan Term Loans”) due to us as of September 30, 2022. As a result of CP Energy’s purchase, and given Prospect’s controlling interest in CP Energy, our Spartan Term Loans are presented as control investments under CP Energy. Spartan remains the direct borrower and guarantor to Prospect for the Spartan Term Loans. In September 2020, we made a new $26,193 Series A preferred stock investment in Spartan Energy Holdings, Inc., which equates to 100% of the Series A non-voting non-convertible preferred stock outstanding. In September 2020, Spartan Energy Services, LLC fully repaid the $26,193 Senior Secured Term Loan B receivable to us at par. We recorded a realized gain of $2,832 in our Consolidated Statement of Operations for the quarter ended September 30, 2020 as a result of this transaction.
[14] First Tower Holdings of Delaware LLC (“First Tower Delaware”), a consolidated entity in which we own 100% of the membership interests, owns 78.06% and 80.03% of First Tower Finance Company LLC (“First Tower Finance”), which owns 100% of First Tower, LLC, the operating company as of September 30, 2022 and June 30, 2022. We report First Tower Finance as a separate controlled company. Effective March 17, 2021, the First Tower, LLC lenders were granted a first priority security interest in First Tower Finance’s assets and our investment became classified as a First Lien Term Loan. Effective June 30, 2021, we increased our investment in our first lien term loan in the aggregate principal amount of $50,000 and the proceeds were returned to us as a distribution on our equity investment in First Tower, LLC.
[15] MITY Holdings of Delaware Inc. (“MITY Delaware”), a consolidated entity in which we own 100% of the common stock, owns 100% of the equity of MITY, Inc. (f/k/a MITY Enterprises, Inc.) (“MITY”). MITY owns 100% of each of MITY-Lite, Inc. (“Mity-Lite”); Broda Enterprises USA, Inc.; and Broda Enterprises ULC (“Broda Canada”). We report MITY as a separate controlled company. Our subordinated unsecured note issued and outstanding to Broda Canada is denominated in Canadian Dollars (“CAD”). As of September 30, 2022 and June 30, 2022, the principal balance of this note was CAD 7,371. In accordance with ASC 830, Foreign Currency Matters (“ASC 830”), this note was remeasured into our functional currency, US Dollars (USD), and is presented on our Consolidated Schedule of Investments in USD. We formed a separate legal entity domiciled in the United States, MITY FSC, Inc., (“MITY FSC”) in which Prospect owns 100% of the equity. MITY FSC does not have material operations. This entity earns commission payments from MITY-Lite based on its sales to foreign customers, and distributes it to its shareholder. 
[16] NPH Property Holdings, LLC (“NPH”), a consolidated entity in which we own 100% of the membership interests, owns 100% of the common equity of National Property REIT Corp. (“NPRC”) (f/k/a National Property Holdings Corp.), a property REIT which holds investments in several real estate properties. Additionally, NPRC invests in online consumer loans and rated secured structured notes through American Consumer Lending Limited (“ACLL”) and National General Lending Limited (“NGL”), respectively, its wholly owned subsidiaries. We report NPRC as a separate controlled company. See Note 3 for further discussion of the investments held by NPRC.
[17] Nationwide Acceptance Holdings LLC (“Nationwide Holdings”), a consolidated entity in which we own 100% of the membership interests, owns 94.48% of Nationwide Loan Company LLC, the operating company, as of September 30, 2022 and June 30, 2022. We report Nationwide Loan Company LLC as a separate controlled company. Prospect has a first priority security interest in the assets of Nationwide.
[18] NMMB Holdings, Inc. (“NMMB Holdings”), a consolidated entity in which we own 100% of the equity, owns 90.42% of the fully diluted equity of NMMB, Inc. (“NMMB”) as of September 30, 2022 and June 30, 2022. NMMB owns 100% of Refuel Agency, Inc., which owns 100% of Armed Forces Communications, Inc. We report NMMB as a separate controlled company.
[19] Prospect owns 100% of the preferred equity of Pacific World Corporation (“Pacific World”), which represents a 99.97% ownership interest of Pacific World as of September 30, 2022 and as of June 30, 2022. As a result, Prospect’s investment in Pacific World is classified as a control investment.
[20] UTP Holdings Group, Inc. (“UTP Holdings”) owns all of the voting stock of Universal Turbine Parts, LLC (“UTP”) and has appointed a Board of Directors to UTP Holdings, consisting of three employees of the Investment Advisor. UTP Holdings owns UTP. UTP Holdings is a wholly-owned holding company controlled by Prospect and therefore Prospect’s investment in UTP is classified as a control investment.
[21] Prospect owns 99.96% of the equity of USES Corp. as of September 30, 2022 and June 30, 2022.
[22] Valley Electric Holdings I, Inc., a consolidated entity in which we own 100% of the common stock, owns 100% of Valley Electric Holdings II, Inc. (“Valley Holdings II”), another consolidated entity. Valley Holdings II owns 94.99% of Valley Electric Company, Inc. (“Valley Electric”). Valley Electric owns 100% of the equity of VE Company, Inc., which owns 100% of the equity of Valley Electric Co. of Mt. Vernon, Inc. We report Valley Electric as a separate controlled company.
[23] As of September 30, 2022 and June 30, 2022, Prospect owns 8.57% of the equity in Encinitas Watches Holdco, LLC, the parent company of Nixon, Inc.
[24] On July 21, 2021, we funded total commitments of $202,931 for our investment in PGX Holdings, Inc. (“PGX”), comprised of a $49,000 first lien senior secured floating rate term loan and a $153,931 second lien senior secured floating rate term loan, to support the refinancing of PGX. In connection with the refinancing, our $47,773 first lien senior secured term loan, $18,164 1.5 lien senior secured term loan and $122,271 second lien senior secured term loan outstanding with PGX were fully repaid at par.
[25] Engine Group, Inc., EMX Digital, Inc. (f/k/a Clearstream.TV, Inc.), and Engine International, Inc., are joint borrowers on the first lien term loan.
[26] Medusind Acquisition, Inc., Medusind Intermediate, Inc., Medusind Solutions Inc. and Medusind Inc. are joint borrowers.
[27] PeopleConnect Holdings, Inc. and Pubrec Holdings, Inc. are joint borrowers.
[28] Prospect owns 38.95% of the preferred stock of Legere Pharmaceutical Holdings, Inc. (“Legere”), which represents 4.98% voting interest in Legere. Legere is the parent company of the borrower, Preventics, Inc. (d/b/a Legere Pharmaceuticals).
[29] Redstone Holdco 2 LP is the parent borrower on the second lien term loan. Redstone Buyer, LLC, Redstone Intermediate (Archer) HoldCo LLC, Redstone Intermediate (FRI) HoldCo LLC, Redstone Intermediate (NetWitness) HoldCo, LLC, and Redstone Intermediate (SecurID) HoldCo, LLC are joint borrowers on the Second Lien Term Loan.
[30] Certain variable rate securities in our portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. The 1-Month LIBOR, or “1ML”, was 3.14% as of September 30, 2022 and 1.79% as of June 30, 2022. The 3-Month LIBOR, or “3ML”, was 3.75% as of September 30, 2022 and 2.29% as of June 30, 2022. The 6-Month LIBOR, or “6ML”, was 4.23% as of September 30, 2022 and 2.94% as of June 30, 2022. The 1-Month Secured Overnight Financing Rate or “1M SOFR”, was 3.04% as of September 30, 2022 and 1.69% as of June 30, 2022. The 3-Month Secured Overnight Financing Rate or “3M SOFR”, was 3.59% as of September 30, 2022 and 2.12% as of June 30, 2022. The 6-Month Secured Overnight Financing Rate or “6M SOFR” was 3.99% as of September 30, 2022.
[31] Security, or a portion thereof, is held by Prospect Capital Funding LLC (“PCF”), our wholly owned subsidiary and a bankruptcy remote special purpose entity, and is pledged as collateral for the Revolving Credit Facility and such security is not available as collateral to our general creditors (see Note 4). The fair values of the investments held by PCF at September 30, 2022 and June 30, 2022 were $2,658,423 and $2,638,042, respectively, representing 35.1% and 34.7% of our total investments, respectively.
[32] Ellett Brothers, LLC, Evans Sports, Inc., Jerry’s Sports, Inc., Simmons Gun Specialties, Inc., Bonitz Brothers, Inc., and Outdoor Sports Headquarters, Inc. are joint borrowers on the second lien term loan. United Sporting Companies, Inc. (“USC”) is a parent guarantor of this debt investment, and is 100% owned by SportCo Holdings, Inc. (“SportCo”). In June 2019, USC filed for Chapter 11 bankruptcy and began liquidating its remaining assets.
[33] Vision Solutions, Inc. and Precisely Software Incorporate are joint borrowers on the Second Lien Term Loan.
[34] Prospect owns 9.19% of the equity in Targus Cayman HoldCo Limited (“Targus”), the parent company of Targus International LLC (“Targus International”), as of September 30, 2022 and June 30, 2022.
[35] The interest rate on these investments, excluding those on non-accrual, contains a paid in kind (“PIK”) provision, whereby the issuer has either the option or the obligation to make interest payments with the issuance of additional securities. The interest rate in the schedule represents the current interest rate in effect for these investments.
The following table provides additional details on these PIK investments, including the maximum annual PIK interest rate allowed under the existing credit agreements, as of and for three months ended September 30, 2022:
Security NamePIK Rate -
Capitalized
PIK Rate -
Paid as cash
Maximum
Current PIK Rate
CP Energy Services Inc. - First Lien Term Loan12.67 %— %12.67 %(A)
CP Energy Services Inc. - First Lien Term Loan12.67 %— %12.67 %(A)
CP Energy Services Inc. - First Lien Term Loan A to Spartan Energy Services, LLC11.12 %— %11.12 %(B)
Credit Central Loan Company, LLC - First Lien Term Loan5.00 %— %5.00 %(C)
Echelon Transportation, LLC - First Lien Term Loan6.00 %— %6.00 %(D)
First Tower Finance Company LLC - First Lien Term Loan9.37 %2.63 %12.00 %
InterDent, Inc. - First Lien Term Loan B12.00 %— %12.00 %
MITY, Inc. - First Lien Term Loan B— %10.00 %10.00 %
National Property REIT Corp. - First Lien Term Loan A— %3.53 %3.53 %
National Property REIT Corp. - First Lien Term Loan B— %5.50 %5.50 %
National Property REIT Corp. - First Lien Term Loan C— %2.25 %2.25 %
National Property REIT Corp. - First Lien Term Loan D— %2.50 %2.50 %
Nationwide Loan Company LLC - First Lien Term Loan10.00 %— %10.00 %
Pacific World Corporation - Revolving Line of Credit10.37 %— %10.37 %(E)
Pacific World Corporation - First Lien Term Loan A8.37 %— %8.37 %
Town & Country Holdings, Inc. - First Lien Term Loan4.875 %— %4.875 %(F)
TPS, LLC - First Lien Term Loan1.50 %— %1.50 %
USES Corp. - First Lien Equipment Term Loan12.12 %— %12.12 %
Valley Electric Co. of Mt. Vernon, Inc. - First Lien Term Loan— %2.50 %2.50 %
Valley Electric Company, Inc. - First Lien Term Loan— %10.00 %10.00 %
Valley Electric Company, Inc. - First Lien Term Loan B— %4.50 %4.50 %
(A) Effective September 20, 2022, the CP Energy Fifteenth Amendment to Loan Agreement was amended to allow 100% of the September 30, 2022 interest accruing in cash to be payable in kind resulting in a current PIK rate capitalized of 12.67%.
(B) On August 22, 2022, the Spartan Energy Services, LLC Twenty-Fifth Amendment to Amended and Restated Senior Secured Loan Agreement was amended to allow interest accruing in cash to be payable in kind resulting in a maximum current PIK rate of 11.12%.
(C) On September 30, 2022, the Credit Central Senior Subordinated Loan Agreement was amended to allow interest accruing in cash to be payable in kind resulting in a maximum current PIK rate of 10.00%.
(D) On January 31, 2022, the Echelon Fifth Amendment and Restated Credit Agreement was amended to remove the PIK rate and to allow the interest accruing in cash to be payable in kind resulting in a maximum current PIK rate of 6.00%.
(E) Effective as of December 29, 2021, the Pacific World Corporation Amendment No. 8 was amended to allow the Revolving Line of Credit interest accruing in cash to be payable in kind resulting in a maximum current rate of 10.37%.
(F) On August 31, 2022, the Town & Country Holdings, Inc. Seventh Amendment to Loan Agreement was amended to allow the First Lien Term loan interest accruing in cash to be payable in kind resulting in a maximum current PIK rate of 4.875%.
The following table provides additional details on these PIK investments, including the maximum annual PIK interest rate allowed under the existing credit agreements, as of and for three months ended June 30, 2022:    
Security NamePIK Rate -
Capitalized
PIK Rate -
Paid as cash
Maximum
Current PIK Rate
CP Energy Services Inc. - First Lien Term Loan13.25%—%13.25%(A)
CP Energy Services Inc. - First Lien Term Loan A to Spartan Energy Services, LLC9.67%—%9.67%(B)
Credit Central Loan Company, LLC - First Lien Term Loan12.92%7.08%10.00%(C)
First Tower Finance Company LLC - First Lien Term Loan8.72%3.28%12.00%
InterDent, Inc. - First Lien Term Loan B12.00%—%12.00%
MITY, Inc. - First Lien Term Loan A3.30%6.70%—%(D)
MITY, Inc. - First Lien Term Loan B6.59%13.41%10.00%(D)
National Property REIT Corp. - First Lien Term Loan A—%3.53%3.53%
National Property REIT Corp. - First Lien Term Loan B—%5.50%5.50%
National Property REIT Corp. - First Lien Term Loan C—%2.25%2.25%
National Property REIT Corp. - First Lien Term Loan D—%2.50%2.50%
Nationwide Loan Company LLC - First Lien Term Loan—%10.00%10.00%
Pacific World Corporation - Revolving Line of Credit8.92%—%8.92%(E)
Pacific World Corporation - First Lien Term Loan A6.92%—%6.92%
Town & Country Holdings, Inc. - First Lien Term LoanN/AN/AN/A(F)
TPS, LLC - First Lien Term Loan1.50%—%1.50%
Valley Electric Co. of Mt. Vernon, Inc. - First Lien Term Loan—%2.50%2.50%
Valley Electric Company, Inc. - First Lien Term Loan—%10.00%10.00%
Valley Electric Company, Inc. - First Lien Term Loan B—%4.50%4.50%(G)
Venio LLC - First Lien Term Loan1.00%—%1.00%
(A) Effective March 31, 2022, the CP Energy Fourteenth Amendment to Loan Agreement was amended to allow 100% of the June 30, 2022 interest accruing in cash to be payable in kind resulting in a current PIK rate capitalized of 13.25%.
(B) On October 28, 2021, the Spartan Energy Services, LLC Twenty-Second Amendment to Amended and Restated Senior Secured Loan Agreement was amended to allow interest accruing in cash to be payable in kind resulting in maximum current PIK rate of 9.67%.
(C) On December 17, 2018, the Credit Central Senior Subordinated Loan Agreement was amended to allow interest accruing in cash to be payable in kind resulting in a maximum current PIK rate of 20.00%.
(D) On March 23, 2021, the Mity Amendment No. 1 and Waiver to Note Purchase Agreement was amended to allow Senior Secured Note A and Senior Secured Note B interest accruing in cash to be payable in kind resulting in a maximum current TLA PIK rate of 10% and TLB PIK rate of 20.00%.
(E) Effective as of December 29, 2021, the Pacific World Corporation Amendment No. 8 was amended to allow the Revolving Line of Credit interest accruing in cash to be payable in kind resulting in a maximum current rate of 8.92%
(F) On December 31, 2021, the Town & Country Holdings, Inc. Seventh Amendment to Loan Agreement was amended to allow the First Lien Term Loan interest accruing in cash to be payable in kind resulting in a maximum current PIK rate of 8.125%. As of June 30, 2022 there is no longer interest accruing as payable in kind.
(G) On March 28, 2022, the Valley Electric Company, Inc. Loan Agreement was amended to allow interest accruing at a maximum current PIK rate of 4.50%.
[36] Syndicated investment which was originated by a financial institution and broadly distributed.
[37] This investment is in the equity class of the collateralized loan obligation (“CLO”) security, which is referred to as “Subordinated Structured Note,” or “SSN”. The SSN investments are entitled to recurring distributions which are generally equal to the excess cash flow generated from the underlying investments after payment of the contractual payments to debt holders and fund expenses. The current estimated yield, calculated using amortized cost, is based on the current projections of this excess cash flow taking into account assumptions which have been made regarding expected prepayments, losses and future reinvestment rates. These assumptions are periodically reviewed and adjusted. Ultimately, the actual yield may be higher or lower than the estimated yield if actual results differ from those used for the assumptions.
[38] Undrawn committed revolvers and delayed draw term loans to our portfolio companies incur commitment and unused fees ranging from 0.00% to 7.25%. As of September 30, 2022 and June 30, 2022, we had $43,434 and $43,934, respectively, of undrawn revolver and delayed draw term loan commitments to our portfolio companies.
[39] This investment represents a Level 2 security in the ASC 820 table as of September 30, 2022. See Notes 2 and 3 within the accompanying notes to consolidated financial statements for further discussion.
[40] The effective yield has been estimated to be 0% as expected future cash flows are anticipated to not be sufficient to repay the investment at cost. If the expected investment proceeds increase, there is a potential for future investment income from the investment. Distributions, once received, will be recognized as return of capital, and when called, any remaining unamortized investment costs will be written off if the actual distributions are less than the amortized investment cost. To the extent that the cost basis of the SSN is fully recovered, any future distributions will be recorded as realized gains.
[41] Investment on non-accrual status as of the reporting date (See Note 2).
[42] Since Prospect's initial common equity investment in NPRC on December 31, 2013, we have made numerous additional follow-on investments that have been used to invest in new and existing properties as well as online consumer loans and rated secured structured notes. These follow-on acquisitions are summarized by fiscal year below (excluding effects of return of capital distributions). Details of specific transactions are included in the respective fiscal year Form 10-K filing (refer to endnote 44 for NPRC term loan follow-on investments):
Fiscal YearFollow-On Investments
(NPRC Common Stock, excluding cost of initial investment)
2014$4,555 
201568,693 
201693,857 
2017116,830 
2018137,024 
201911,582 
202019,800 
202215,620 
20233,600 
[43] As of September 30, 2022 and June 30, 2022, the residual profit interest includes both (i) 8.33% of New TLA and TLD residual profit and (ii) 100% of TLC residual profits, with both calculated quarterly in arrears.
[44] The overriding royalty interests held receive payments at the stated rates based upon operations of the borrower.
[45] The consolidated revenue interest is equal to the lesser of (i) 2.0% of consolidated revenue for the twelve-month period ending on the last day of the prior fiscal quarter (or portion thereof) and (ii) 25% of the amount of interest accrued on the Notes at the cash interest rate for such fiscal quarter (or portion thereof).