MEMBERS' CAPITAL - Schedule of Distributable Earnings (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Investment Company, Net Assets [Roll Forward] | |||||
| Net investment income | $ 70,724 | $ 77,700 | $ 136,405 | $ 155,795 | |
| Distributions declared | (69,973) | $ (79,929) | (143,514) | (156,963) | |
| Total distributable earnings (loss) | |||||
| Investment Company, Net Assets [Roll Forward] | |||||
| Total distributable earnings (loss), beginning of period | (125,999) | $ (50,459) | $ (50,459) | ||
| Net investment income | 136,405 | 321,016 | |||
| Net realized gain (loss) | (72,152) | (16,288) | |||
| Net unrealized appreciation (depreciation) | (42,516) | (66,296) | |||
| Distributions declared | (143,514) | (312,944) | |||
| Tax reclassification of unitholders' equity | 0 | (1,028) | |||
| Total distributable earnings (loss), end of period | $ (247,776) | $ (247,776) | $ (125,999) | ||
| X | ||||||||||
- Definition Amount, before tax, of realized gain (loss) on investment in debt and equity securities and foreign currency transaction on investment in debt and equity securities from change in market price, classified as operating. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, before tax, of unrealized gain (loss) on investment in debt and equity securities and foreign currency transaction on investment in debt and equity securities from change in market price, classified as operating. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of dividend distribution from ordinary income and capital gain. Excludes distribution for tax return of capital. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Amount of increase (decrease) from reclassification to paid-in capital of permanent difference for distribution to ownership interest holder by investment company. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, after expense and tax, of investment income classified as operating. Excludes realized and unrealized gain (loss) on investment. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of member capital in limited liability company (LLC). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|