v3.25.3

Fair Value - Fair Value - Summary of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | $ 95,000 | $ 107,600
Level 3 [Member] | Common Equity/Equity Interests/Warrants [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 284,000 |
Recurring Fair Value [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 2,105,293 | 2,005,634
Recurring Fair Value [Member] | Measured at Net Asset Value [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 48,360 | 49,091
Recurring Fair Value [Member] | Senior Secured Loans [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 1,251,236 | 1,117,118
Recurring Fair Value [Member] | Senior Secured Loans [Member] | Measured at Net Asset Value [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 0 | 0
Recurring Fair Value [Member] | Equipment Financing [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 121,823 | 181,016
Recurring Fair Value [Member] | Equipment Financing [Member] | Measured at Net Asset Value [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 0 | 0
Recurring Fair Value [Member] | Preferred Equity [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 32,156 | 31,682
Recurring Fair Value [Member] | Preferred Equity [Member] | Measured at Net Asset Value [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 0 | 0
Recurring Fair Value [Member] | Common Equity/Equity Interests/Warrants [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 700,078 | 675,818
Recurring Fair Value [Member] | Common Equity/Equity Interests/Warrants [Member] | Measured at Net Asset Value [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 48,360 | 49,091
Recurring Fair Value [Member] | Level 1 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 216 | 257
Recurring Fair Value [Member] | Level 1 [Member] | Senior Secured Loans [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 0 | 0
Recurring Fair Value [Member] | Level 1 [Member] | Equipment Financing [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 0 | 0
Recurring Fair Value [Member] | Level 1 [Member] | Preferred Equity [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 0 | 0
Recurring Fair Value [Member] | Level 1 [Member] | Common Equity/Equity Interests/Warrants [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 216 | 257
Recurring Fair Value [Member] | Level 2 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 0 | 0
Recurring Fair Value [Member] | Level 2 [Member] | Senior Secured Loans [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 0 | 0
Recurring Fair Value [Member] | Level 2 [Member] | Equipment Financing [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 0 | 0
Recurring Fair Value [Member] | Level 2 [Member] | Preferred Equity [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 0 | 0
Recurring Fair Value [Member] | Level 2 [Member] | Common Equity/Equity Interests/Warrants [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 0 | 0
Recurring Fair Value [Member] | Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 2,056,717 | 1,956,286
Recurring Fair Value [Member] | Level 3 [Member] | Senior Secured Loans [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 1,251,236 | 1,117,118
Recurring Fair Value [Member] | Level 3 [Member] | Equipment Financing [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 121,823 | 181,016
Recurring Fair Value [Member] | Level 3 [Member] | Preferred Equity [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | 32,156 | 31,682
Recurring Fair Value [Member] | Level 3 [Member] | Common Equity/Equity Interests/Warrants [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets | $ 651,502 | $ 626,470

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