FAIR VALUE MEASUREMENTS - Fair Value Levels (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | $ 598,114 | [1],[2] | $ 573,558 | [3],[4] | ||||||||
| Level 1 | ||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | 0 | 0 | ||||||||||
| Level 2 | ||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | 44,979 | 55,441 | ||||||||||
| Level 3 | ||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | 553,135 | 518,117 | ||||||||||
| Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] | ||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | 598,114 | 573,558 | ||||||||||
| First Lien Debt | Level 1 | ||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | 0 | 0 | ||||||||||
| First Lien Debt | Level 2 | ||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | 44,979 | 55,441 | ||||||||||
| First Lien Debt | Level 3 | ||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | 550,798 | 516,333 | ||||||||||
| First Lien Debt | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] | ||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | 595,777 | 571,774 | ||||||||||
| Other Debt Investments | Level 1 | ||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | 0 | 0 | ||||||||||
| Other Debt Investments | Level 2 | ||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | 0 | 0 | ||||||||||
| Other Debt Investments | Level 3 | ||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | 637 | 689 | ||||||||||
| Other Debt Investments | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] | ||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | 637 | 689 | ||||||||||
| Equity | Level 1 | ||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | 0 | 0 | ||||||||||
| Equity | Level 2 | ||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | 0 | 0 | ||||||||||
| Equity | Level 3 | ||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | 1,700 | 1,095 | ||||||||||
| Equity | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] | ||||||||||||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||
| Fair Value | $ 1,700 | $ 1,095 | ||||||||||
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