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Fair Value Measurements (Details) - Schedule of Quantitative Information About Level 3 Fair Value Measurements of Our Investments - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | $ 165,316 | $ 146,675
Senior Secured First Lien Term Loans [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | $ 69,943 | $ 65,428
Valuation Methodology | Income Approach | Income Approach
Unobservable Input | Market Yield | Market Yield
Range (Weighted Average) | 8.50% - 32.0% (13.78%) | 8.50% - 24.00% (10.57%)
Impact to Valuation From An Increase In Input | Decrease |
Senior Secured First Lien Term Loans One [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | $ 751 | $ 3,807
Valuation Methodology | Market Approach | Market Approach
Unobservable Input | Revenue Multiple | EBITDA Multiple
Range (Weighted Average) | 0.3x - 0.3x (0.3x) | 4.0x – 5.0x (4.5x)
Impact to Valuation From An Increase In Input | Increase |
Senior Secured First Lien Term Loans Two [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | $ 10,939 | $ 4,152
Valuation Methodology | Market Approach | Market Approach
Unobservable Input | EBITDA Multiple | Revenue Multiple
Range (Weighted Average) | 1.7x - 5.0x (3.1x) | 0.2x – 0.3x (2.5x)
Impact to Valuation From An Increase In Input | Increase |
Senior Secured First Lien Term Loans Three [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | $ 866 | $ 865
Valuation Methodology | Market Approach | Income Approach
Unobservable Input | LTM EBITDA Multiple | Market Spread
Range (Weighted Average) | 5.8x - 6.8x (6.3x) | 5.75% - 6.25% (6.00%)
Impact to Valuation From An Increase In Input | Increase |
Equity Warrants [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | $ 38,870 | $ 47,138
Valuation Methodology | Cost Approach | Cost Approach
Unobservable Input | Collateral Value | Replacement Cost
Range (Weighted Average) | N/A | N/A
Impact to Valuation From An Increase In Input | N/A |
Equity/Warrants Two [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | $ 11,734 | $ 9,951
Valuation Methodology | Market Approach | Market Approach
Unobservable Input | LTM Multiple | Market Yield
Range (Weighted Average) | 5.8x – 6.8x (6.3x) | 8.50% - 13.25% (12.75%)
Impact to Valuation From An Increase In Input | Increase |
Equity/Warrants Three [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | $ 22,007 | $ 1,283
Valuation Methodology | Market Approach | Market Approach
Unobservable Input | EBITDA Multiple | Sum of the Parts/Estimated Proceeds
Range (Weighted Average) | 1.8x – 36.8x (2.8x) | 8.1x – 11.4x (9.8x)
Impact to Valuation From An Increase In Input | Increase |
Equity/Warrants Four [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | $ 10,000 |
Valuation Methodology | Recent Purchase |
Unobservable Input | Purchase Price |
Range (Weighted Average) | N/A – N/A (N/A) |
Impact to Valuation From An Increase In Input | N/A |
Equity/Warrants Five [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | $ 206 |
Valuation Methodology | Income Approach |
Unobservable Input | DLOM (Discount for lack of Marketability) |
Range (Weighted Average) | 3.0x – 3.2x (3.1x) |
Impact to Valuation From An Increase In Input | Decrease |
Senior Secured First Lien Term Loans Four [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value |  | $ 2,607
Valuation Methodology |  | Market Approach
Unobservable Input |  | EBITDA Multiple
Range (Weighted Average) |  | 9.0x – 10.0x (9.5x)
Equity/Warrants One [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value |  | $ 11,444
Valuation Methodology |  | Market Approach
Unobservable Input |  | EBITDA Multiple
Range (Weighted Average) |  | 2.0x – 21.0x (17.4x)

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