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INVESTMENTS - Geographic Composition Of Investment At Fair Value (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 2,556,114 | $ 2,448,935
Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 1,212,132 | $ 1,209,063
Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 100.00% | 100.00%
Australia | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 25,771 | $ 26,111
Australia | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 2.10% | 2.10%
Austria | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 6,924 | $ 6,697
Austria | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 0.60% | 0.50%
Belgium | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 17,075 | $ 16,385
Belgium | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 1.40% | 1.40%
Canada | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 7,309 | $ 7,280
Canada | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 0.60% | 0.60%
Denmark | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 986 | $ 953
Denmark | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 0.10% | 0.10%
Finland | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 2,112 | $ 1,967
Finland | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 0.20% | 0.20%
France | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 135,678 | $ 133,682
France | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 11.20% | 11.10%
Germany | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 39,323 | $ 38,068
Germany | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 3.20% | 3.10%
Hong Kong | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 16,635 | $ 16,593
Hong Kong | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 1.40% | 1.40%
Ireland | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 4,336 | $ 4,334
Ireland | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 0.30% | 0.40%
Luxembourg | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 1,795 | $ 1,759
Luxembourg | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 0.10% | 0.10%
Netherlands | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 35,965 | $ 35,194
Netherlands | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 3.00% | 2.90%
Panama | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 946 | $ 945
Panama | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 0.10% | 0.10%
Singapore | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 4,961 | $ 4,955
Singapore | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 0.40% | 0.40%
Spain | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 4,452 | $ 4,189
Spain | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 0.40% | 0.30%
Sweden | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 4,392 | $ 4,371
Sweden | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 0.40% | 0.40%
Switzerland | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 2,404 | $ 5,558
Switzerland | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 0.20% | 0.50%
United Kingdom | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 128,084 | $ 126,305
United Kingdom | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 10.50% | 10.40%
USA | Jocassee Partners LLC |  |
Summary of Investment Holdings [Line Items] |  |
Fair Value | $ 772,984 | $ 773,717
USA | Jocassee Partners LLC | Fair Value | Geographic Concentration Risk |  |
Summary of Investment Holdings [Line Items] |  |
Percentage of Total Portfolio | 63.80% | 64.00%

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