INVESTMENTS - Schedule of Geographic Composition of Investment at Fair Value (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2026	Dec. 31, 2025
Schedule of Investments [Line Items]
Fair Value	$ 2,458,590	$ 2,398,524
Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	1,126,044	1,241,387
Jocassee Partners LLC \| Investment, Excluding Short Term Investment, with Previous Commitment to Provide Financing
Schedule of Investments [Line Items]
Fair Value	$ 1,100,397	$ 1,223,606
Jocassee Partners LLC \| Percentage of Total Portfolio, at Fair Value \| Geographic Concentration Risk
Schedule of Investments [Line Items]
Percentage of Total Portfolio	100.00%	100.00%
Australia \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 19,822	$ 24,053
Australia \| Jocassee Partners LLC \| Percentage of Total Portfolio, at Fair Value \| Geographic Concentration Risk
Schedule of Investments [Line Items]
Percentage of Total Portfolio	2.00%	2.00%
Austria \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 6,200	$ 6,459
Austria \| Jocassee Partners LLC \| Percentage of Total Portfolio, at Fair Value \| Geographic Concentration Risk
Schedule of Investments [Line Items]
Percentage of Total Portfolio	1.00%	1.00%
Belgium \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 3,188	$ 20,645
Belgium \| Jocassee Partners LLC \| Percentage of Total Portfolio, at Fair Value \| Geographic Concentration Risk
Schedule of Investments [Line Items]
Percentage of Total Portfolio	0.00%	2.00%
Canada \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 4,828	$ 2,081
Canada \| Jocassee Partners LLC \| Percentage of Total Portfolio, at Fair Value \| Geographic Concentration Risk
Schedule of Investments [Line Items]
Percentage of Total Portfolio	0.00%	0.00%
France \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 97,194	$ 110,106
France \| Jocassee Partners LLC \| Percentage of Total Portfolio, at Fair Value \| Geographic Concentration Risk
Schedule of Investments [Line Items]
Percentage of Total Portfolio	9.00%	9.00%
Germany \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 46,724	$ 47,823
Germany \| Jocassee Partners LLC \| Percentage of Total Portfolio, at Fair Value \| Geographic Concentration Risk
Schedule of Investments [Line Items]
Percentage of Total Portfolio	4.00%	4.00%
Hong Kong \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 9,590	$ 15,000
Hong Kong \| Jocassee Partners LLC \| Percentage of Total Portfolio, at Fair Value \| Geographic Concentration Risk
Schedule of Investments [Line Items]
Percentage of Total Portfolio	1.00%	1.00%
Ireland \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 8,523	$ 8,743
Ireland \| Jocassee Partners LLC \| Percentage of Total Portfolio, at Fair Value \| Geographic Concentration Risk
Schedule of Investments [Line Items]
Percentage of Total Portfolio	1.00%	1.00%
Luxembourg \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 3,341	$ 3,340
Luxembourg \| Jocassee Partners LLC \| Percentage of Total Portfolio, at Fair Value \| Geographic Concentration Risk
Schedule of Investments [Line Items]
Percentage of Total Portfolio	0.00%	0.00%
Netherlands \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 42,247	$ 49,546
Netherlands \| Jocassee Partners LLC \| Percentage of Total Portfolio, at Fair Value \| Geographic Concentration Risk
Schedule of Investments [Line Items]
Percentage of Total Portfolio	4.00%	4.00%
Singapore \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 4,961	$ 4,950
Singapore \| Jocassee Partners LLC \| Percentage of Total Portfolio, at Fair Value \| Geographic Concentration Risk
Schedule of Investments [Line Items]
Percentage of Total Portfolio	1.00%	0.00%
Spain \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 3,096	$ 3,167
Spain \| Jocassee Partners LLC \| Percentage of Total Portfolio, at Fair Value \| Geographic Concentration Risk
Schedule of Investments [Line Items]
Percentage of Total Portfolio	0.00%	0.00%
United Kingdom \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 55,266	$ 111,148
United Kingdom \| Jocassee Partners LLC \| Percentage of Total Portfolio, at Fair Value \| Geographic Concentration Risk
Schedule of Investments [Line Items]
Percentage of Total Portfolio	5.00%	9.00%
USA \| Jocassee Partners LLC
Schedule of Investments [Line Items]
Fair Value	$ 795,417	$ 816,545
USA \| Jocassee Partners LLC \| Percentage of Total Portfolio, at Fair Value \| Geographic Concentration Risk
Schedule of Investments [Line Items]
Percentage of Total Portfolio	72.00%	67.00%