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INVESTMENTS - Geographic Composition Of Investment At Fair Value (Details) - USD ($)
$ in Thousands

9 Months Ended

12 Months Ended

Sep. 30, 2022

Dec. 31, 2021

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 2,332,492

^[1]

$ 1,800,594

^[2]

Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 1,213,233

$ 1,245,647

Jocassee Partners LLC | Percentage of Total Portfolio | 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 of investment owned

$ 24,788

$ 16,509

Australia | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

2.00%

1.30%

Austria | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 6,141

$ 1,115

Austria | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

0.50%

0.10%

Belgium | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 15,670

$ 14,814

Belgium | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

1.30%

1.20%

Canada | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 7,273

$ 8,507

Canada | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

0.60%

0.70%

Denmark | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 889

$ 6,960

Denmark | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

0.10%

0.60%

Finland | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 1,733

$ 47,992

Finland | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

0.10%

3.90%

France | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 124,836

$ 3,391

France | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

10.30%

0.30%

Germany | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 51,063

$ 6,357

Germany | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

4.20%

0.50%

Hong Kong | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 16,262

$ 2,272

Hong Kong | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

1.40%

0.20%

Ireland | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 3,632

$ 123,816

Ireland | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

0.30%

9.90%

Italy | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 0

$ 113,896

Italy | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

0.00%

9.10%

Luxembourg | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 1,608

$ 4,766

Luxembourg | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

0.10%

0.40%

Netherlands | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 32,866

$ 3,744

Netherlands | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

2.70%

0.30%

Panama | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 939

$ 0

Panama | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

0.10%

0.00%

Singapore | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 4,905

$ 0

Singapore | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

0.40%

0.00%

Spain | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 3,806

$ 1,225

Spain | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

0.30%

0.10%

Sweden | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 4,104

$ 32,150

Sweden | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

0.40%

2.60%

Switzerland | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 5,176

$ 965

Switzerland | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

0.40%

0.10%

United Kingdom | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 116,853

$ 5,305

United Kingdom | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

9.60%

0.40%

USA | Jocassee Partners LLC

Summary of Investment Holdings [Line Items]

Fair value of investment owned

$ 790,689

$ 851,863

USA | Jocassee Partners LLC | Percentage of Total Portfolio | Geographic Concentration Risk

Summary of Investment Holdings [Line Items]

Percentage of Total Portfolio

65.20%

68.40%

[1]	Some or all of the investment is or will be encumbered as security for the Company's $1.1 billion senior secured credit facility with ING Capital LLC initially entered into in February 2019 (as amended, restated and otherwise modified from time to time, the "February 2019 Credit Facility").
[2]	Some or all of the investment is or will be encumbered as security for the Company's senior secured credit facility with ING Capital LLC.

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