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INVESTMENTS - Schedule of Industry Composition of Investment at Fair Value (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 USD ($) investment | Dec. 31, 2023 USD ($) investment
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 2,527,537 |  | $ 2,488,715
Percentage of Total Net Assets | 208.60% | [1] | 208.00%
Equity shares |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 413,482 |  | $ 374,704
Percentage of Total Net Assets | 34.00% |  | 31.00%
Senior debt and 1st lien notes |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 1,658,742 |  | $ 1,670,300
Percentage of Total Net Assets | 137.00% |  | 140.00%
Market Approach | Equity shares | Yield Analysis |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 14,200 |  |
Number of investments | investment | 1 |  |
Yield Analysis | Equity shares | Market Approach |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value |  |  | $ 5,300
Number of investments | investment |  |  | 1
Yield Analysis | Senior debt and 1st lien notes | Market Approach |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 16,000 |  | $ 20,000
Number of investments | investment | 2 |  | 6
Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 1,240,745 |  | $ 1,315,630
Jocassee Partners LLC | Equity shares |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | 244 |  | 268
Jocassee Partners LLC | Senior debt and 1st lien notes |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | 1,188,239 |  | 1,260,183
Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | 50,361 |  | 79,599
Sierra JV | Senior debt and 1st lien notes |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 50,361 |  | $ 79,599
Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 100.00% |  | 100.00%
Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 100.00% |  | 100.00%
Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 100.00% |  | 100.00%
Aerospace and Defense |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 137,956 |  | $ 132,498
Percentage of Total Net Assets | 11.40% |  | 11.10%
Aerospace and Defense | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 85,020 |  | $ 82,200
Aerospace and Defense | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 5.50% |  | 5.30%
Aerospace and Defense | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 6.80% |  | 6.30%
Automotive |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 71,897 |  | $ 80,828
Percentage of Total Net Assets | 5.90% |  | 6.70%
Automotive | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 14,460 |  | $ 26,087
Automotive | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 2,730 |  | $ 2,463
Automotive | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 2.90% |  | 3.30%
Automotive | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.20% |  | 2.00%
Automotive | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 5.40% |  | 3.10%
Banking, Finance, Insurance and Real Estate |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 406,291 |  | $ 401,816
Percentage of Total Net Assets | 33.50% |  | 33.60%
Banking, Finance, Insurance and Real Estate | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 121,466 |  | $ 121,798
Banking, Finance, Insurance and Real Estate | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 0 |  | $ 254
Banking, Finance, Insurance and Real Estate | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 16.10% |  | 16.10%
Banking, Finance, Insurance and Real Estate | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 9.80% |  | 9.30%
Banking, Finance, Insurance and Real Estate | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.00% |  | 0.30%
Beverage, Food and Tobacco |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 33,518 |  | $ 23,135
Percentage of Total Net Assets | 2.80% |  | 1.90%
Beverage, Food and Tobacco | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 29,561 |  | $ 30,637
Beverage, Food and Tobacco | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 3,747 |  | $ 3,172
Beverage, Food and Tobacco | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.30% |  | 0.90%
Beverage, Food and Tobacco | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 2.40% |  | 2.30%
Beverage, Food and Tobacco | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 7.40% |  | 4.00%
Capital Equipment |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 136,168 |  | $ 128,706
Percentage of Total Net Assets | 11.20% |  | 10.80%
Capital Equipment | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 14,466 |  | $ 17,986
Capital Equipment | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 0 |  | $ 5,271
Capital Equipment | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 5.40% |  | 5.20%
Capital Equipment | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.20% |  | 1.40%
Capital Equipment | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.00% |  | 6.60%
Chemicals, Plastics, and Rubber |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 40,937 |  | $ 35,897
Percentage of Total Net Assets | 3.40% |  | 3.00%
Chemicals, Plastics, and Rubber | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 39,054 |  | $ 37,030
Chemicals, Plastics, and Rubber | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 3,014 |  | $ 2,942
Chemicals, Plastics, and Rubber | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.60% |  | 1.50%
Chemicals, Plastics, and Rubber | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 3.10% |  | 2.80%
Chemicals, Plastics, and Rubber | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 6.00% |  | 3.70%
Construction and Building |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 30,684 |  | $ 30,387
Percentage of Total Net Assets | 2.50% |  | 2.50%
Construction and Building | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 19,052 |  | $ 16,942
Construction and Building | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 0 |  | $ 1,867
Construction and Building | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.20% |  | 1.20%
Construction and Building | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.50% |  | 1.30%
Construction and Building | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.00% |  | 2.40%
Consumer goods: Durable |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 49,236 |  | $ 47,074
Percentage of Total Net Assets | 4.10% |  | 3.90%
Consumer goods: Durable | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 24,608 |  | $ 26,412
Consumer goods: Durable | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 1,064 |  | $ 1,042
Consumer goods: Durable | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 2.00% |  | 1.90%
Consumer goods: Durable | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 2.00% |  | 2.00%
Consumer goods: Durable | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 2.10% |  | 1.30%
Consumer goods: Non-durable |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 36,108 |  | $ 28,210
Percentage of Total Net Assets | 3.00% |  | 2.40%
Consumer goods: Non-durable | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 21,383 |  | $ 21,850
Consumer goods: Non-durable | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.40% |  | 1.10%
Consumer goods: Non-durable | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.70% |  | 1.70%
Containers, Packaging and Glass |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 37,542 |  | $ 37,524
Percentage of Total Net Assets | 3.10% |  | 3.10%
Containers, Packaging and Glass | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 27,983 |  | $ 26,829
Containers, Packaging and Glass | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.50% |  | 1.50%
Containers, Packaging and Glass | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 2.30% |  | 2.00%
Energy: Electricity |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 29,079 |  | $ 20,874
Percentage of Total Net Assets | 2.40% |  | 1.70%
Energy: Electricity | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 21,150 |  | $ 20,250
Energy: Electricity | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.20% |  | 0.80%
Energy: Electricity | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.70% |  | 1.50%
Energy: Oil and Gas |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 3,236 |  | $ 3,240
Percentage of Total Net Assets | 0.30% |  | 0.30%
Energy: Oil and Gas | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 8,751 |  | $ 6,724
Energy: Oil and Gas | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.10% |  | 0.10%
Energy: Oil and Gas | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.70% |  | 0.50%
Environmental Industries |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 51,501 |  | $ 53,484
Percentage of Total Net Assets | 4.20% |  | 4.50%
Environmental Industries | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 5,749 |  | $ 6,986
Environmental Industries | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 3,769 |  | $ 3,487
Environmental Industries | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 2.00% |  | 2.10%
Environmental Industries | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.50% |  | 0.50%
Environmental Industries | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 7.50% |  | 4.40%
Forest Products & Paper | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 3,601 |  | $ 3,605
Forest Products & Paper | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.30% |  | 0.30%
Healthcare and Pharmaceuticals |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 190,321 |  | $ 216,952
Percentage of Total Net Assets | 15.70% |  | 18.10%
Healthcare and Pharmaceuticals | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 127,058 |  | $ 141,070
Healthcare and Pharmaceuticals | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 8,578 |  | $ 12,880
Healthcare and Pharmaceuticals | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 7.50% |  | 8.70%
Healthcare and Pharmaceuticals | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 10.20% |  | 10.70%
Healthcare and Pharmaceuticals | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 17.00% |  | 16.20%
High Tech Industries |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 304,442 |  | $ 303,082
Percentage of Total Net Assets | 25.10% |  | 25.40%
High Tech Industries | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 161,353 |  | $ 174,572
High Tech Industries | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 10,153 |  | $ 14,661
High Tech Industries | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 12.00% |  | 12.20%
High Tech Industries | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 13.00% |  | 13.30%
High Tech Industries | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 20.20% |  | 18.40%
Hotel, Gaming and Leisure |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 55,991 |  | $ 54,256
Percentage of Total Net Assets | 4.60% |  | 4.50%
Hotel, Gaming and Leisure | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 19,691 |  | $ 22,834
Hotel, Gaming and Leisure | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 2.20% |  | 2.20%
Hotel, Gaming and Leisure | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.60% |  | 1.70%
Investment Funds and Vehicles |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 110,694 |  | $ 110,066
Percentage of Total Net Assets | 9.10% |  | 9.20%
Investment Funds and Vehicles | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 30,550 |  | $ 33,450
Investment Funds and Vehicles | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 4.40% |  | 4.40%
Investment Funds and Vehicles | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 2.50% |  | 2.50%
Media: Advertising, Printing and Publishing |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 38,931 |  | $ 39,447
Percentage of Total Net Assets | 3.20% |  | 3.30%
Media: Advertising, Printing and Publishing | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 11,819 |  | $ 12,081
Media: Advertising, Printing and Publishing | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.50% |  | 1.60%
Media: Advertising, Printing and Publishing | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.00% |  | 0.90%
Media: Broadcasting and Subscription |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 13,060 |  | $ 13,277
Percentage of Total Net Assets | 1.10% |  | 1.10%
Media: Broadcasting and Subscription | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 22,596 |  | $ 31,201
Media: Broadcasting and Subscription | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.50% |  | 0.50%
Media: Broadcasting and Subscription | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.80% |  | 2.40%
Media: Diversified and Production |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 65,449 |  | $ 64,559
Percentage of Total Net Assets | 5.40% |  | 5.40%
Media: Diversified and Production | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 34,354 |  | $ 34,391
Media: Diversified and Production | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 2.60% |  | 2.60%
Media: Diversified and Production | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 2.80% |  | 2.60%
Metals and Mining |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 9,015 |  | $ 8,993
Percentage of Total Net Assets | 0.70% |  | 0.80%
Metals and Mining | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 4,870 |  | $ 3,863
Metals and Mining | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.40% |  | 0.40%
Metals and Mining | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.40% |  | 0.30%
Retail | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 12,974 |  | $ 13,141
Retail | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 6,219 |  | $ 6,255
Retail | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.00% |  | 1.00%
Retail | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 12.40% |  | 7.90%
Services: Business |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 366,291 |  | $ 326,762
Percentage of Total Net Assets | 30.20% |  | 27.30%
Services: Business | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 217,010 |  | $ 222,610
Services: Business | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 4,799 |  | $ 6,798
Services: Business | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 14.50% |  | 13.20%
Services: Business | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 17.50% |  | 16.90%
Services: Business | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 9.50% |  | 8.50%
Services: Consumer |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 61,307 |  | $ 61,409
Percentage of Total Net Assets | 5.10% |  | 5.10%
Services: Consumer | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 59,055 |  | $ 58,632
Services: Consumer | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 0 |  | $ 8,525
Services: Consumer | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 2.40% |  | 2.50%
Services: Consumer | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 4.70% |  | 4.50%
Services: Consumer | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.00% |  | 10.70%
Structured products |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 104,014 |  | $ 102,922
Percentage of Total Net Assets | 8.60% |  | 8.60%
Structured products | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 4.10% |  | 4.10%
Telecommunications |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 27,535 |  | $ 27,565
Percentage of Total Net Assets | 2.30% |  | 2.30%
Telecommunications | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 35,894 |  | $ 36,027
Telecommunications | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.10% |  | 1.10%
Telecommunications | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 2.90% |  | 2.70%
Transportation: Cargo |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 88,075 |  | $ 96,450
Percentage of Total Net Assets | 7.30% |  | 8.10%
Transportation: Cargo | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 46,477 |  | $ 57,575
Transportation: Cargo | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 6,288 |  | $ 6,296
Transportation: Cargo | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 3.50% |  | 3.90%
Transportation: Cargo | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 3.70% |  | 4.40%
Transportation: Cargo | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 12.50% |  | 7.90%
Transportation: Consumer |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 12,882 |  | $ 11,951
Percentage of Total Net Assets | 1.10% |  | 1.00%
Transportation: Consumer | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 13,682 |  | $ 12,613
Transportation: Consumer | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 0 |  | $ 3,686
Transportation: Consumer | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.50% |  | 0.50%
Transportation: Consumer | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 1.10% |  | 1.00%
Transportation: Consumer | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Sierra JV |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.00% |  | 4.60%
Utilities: Electric |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 15,377 |  | $ 22,696
Percentage of Total Net Assets | 1.30% |  | 1.90%
Utilities: Electric | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 7,058 |  | $ 9,396
Utilities: Electric | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.60% |  | 0.90%
Utilities: Electric | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.60% |  | 0.70%
Utilities: Oil and Gas |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 0 |  | $ 4,655
Percentage of Total Net Assets | 0.00% |  | 0.40%
Utilities: Oil and Gas | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Fair Value | $ 0 |  | $ 6,838
Utilities: Oil and Gas | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.00% |  | 0.20%
Utilities: Oil and Gas | Percentage of Total Portfolio, at Fair Value | Industry Concentration Risk | Jocassee Partners LLC |  |  |
Schedule of Investments [Line Items] |  |  |
Percentage of Total Portfolio | 0.00% |  | 0.50%
[1] | Fair value as a percentage of net assets.

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