FAIR VALUE MEASUREMENTS - Schedule of Investments Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | $ 1,863,644 | [1],[2] | $ 1,468,228 | [3],[4],[5] | ||||||||||||||
| Liabilities, fair value | 6,257 | 480 | ||||||||||||||||
| First-lien debt | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | 1,771,640 | 1,427,843 | ||||||||||||||||
| Other equity | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | 15,501 | 8,487 | ||||||||||||||||
| Preferred Equity | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | 35,298 | 842 | ||||||||||||||||
| Interest Rate Swaps | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Liabilities, fair value | 6,257 | 480 | ||||||||||||||||
| Level 1 | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | 0 | 0 | ||||||||||||||||
| Level 1 | First-lien debt | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | 0 | 0 | ||||||||||||||||
| Level 1 | Other equity | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | 0 | 0 | ||||||||||||||||
| Level 1 | Preferred Equity | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | 0 | 0 | ||||||||||||||||
| Level 1 | Interest Rate Swaps | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Liabilities, fair value | 0 | 0 | ||||||||||||||||
| Level 2 | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | 303,582 | 496,692 | ||||||||||||||||
| Level 2 | First-lien debt | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | 303,582 | 496,692 | ||||||||||||||||
| Level 2 | Other equity | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | 0 | 0 | ||||||||||||||||
| Level 2 | Preferred Equity | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | 0 | 0 | ||||||||||||||||
| Level 2 | Interest Rate Swaps | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Liabilities, fair value | 6,257 | 480 | ||||||||||||||||
| Level 3 | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | 1,518,857 | 940,480 | ||||||||||||||||
| Level 3 | First-lien debt | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | 1,468,058 | 931,151 | ||||||||||||||||
| Level 3 | Other equity | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | 15,501 | 8,487 | ||||||||||||||||
| Level 3 | Preferred Equity | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | 35,298 | 842 | ||||||||||||||||
| Level 3 | Interest Rate Swaps | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Liabilities, fair value | 0 | 0 | ||||||||||||||||
| Fair Value, Inputs, Level 1, Level 2, and Level 3 | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | 1,822,439 | 1,437,172 | ||||||||||||||||
| Fair Value Measured at Net Asset Value Per Share [Member] | ||||||||||||||||||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] | ||||||||||||||||||
| Fair Value | $ 41,205 | [6] | $ 31,056 | [7] | ||||||||||||||
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