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Fair Value Measurements - Schedule of Quantitative Information About Level 3 Fair Value Measurements of Our Investments (Details) - Level 3 [Member] - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2025 | Sep. 30, 2024
Schedule of Quantitative Information About Level 3 Fair Value Measurements of Our Investments [Line Items] |  |
Fair Value | $ 220,324 | $ 140,290
Senior Secured First Lien Term Loans [Member] |  |
Schedule of Quantitative Information About Level 3 Fair Value Measurements of Our Investments [Line Items] |  |
Fair Value | $ 74,570 | $ 65,236
Valuation Methodology | Income Approach | Income Approach
Unobservable Input | Market Yield | Market Yield
Range (Weighted Average) | 3.5% - 14.25% (11.2%) | 3.5% - 42.5% (15.3%)
Impact to Valuation From An Increase In Input | Decrease | Decrease
Senior Secured First Lien Term Loans Two [Member] |  |
Schedule of Quantitative Information About Level 3 Fair Value Measurements of Our Investments [Line Items] |  |
Fair Value | $ 1,000 | $ 1,002
Valuation Methodology | Market Approach | Market Approach
Unobservable Input | Market Spread | Market Spread
Range (Weighted Average) |  | 4.5% - 5.0% (4.75%)
Impact to Valuation From An Increase In Input |  | Decrease
Senior Secured First Lien Term Loans Three [Member] |  |
Schedule of Quantitative Information About Level 3 Fair Value Measurements of Our Investments [Line Items] |  |
Fair Value | $ 14,691 | $ 350
Valuation Methodology | Market Approach | Cost Approach
Unobservable Input | EBITDA Multiple | Collateral Value
Range (Weighted Average) | 2.0x – 3.0x (2.5x) |
Impact to Valuation From An Increase In Input | Increase |
Senior Secured First Lien Term Loans Four [Member] |  |
Schedule of Quantitative Information About Level 3 Fair Value Measurements of Our Investments [Line Items] |  |
Fair Value | $ 42 |
Valuation Methodology | Recent Purchase |
Unobservable Input | Purchase Price |
Range (Weighted Average) |  |
Impact to Valuation From An Increase In Input |  |
Senior Secured Notes [Member] |  |
Schedule of Quantitative Information About Level 3 Fair Value Measurements of Our Investments [Line Items] |  |
Fair Value | $ 7,422 | $ 7,422
Valuation Methodology | Cost Approach | Recent Purchase
Unobservable Input | Collateral Value | Purchase Price
Range (Weighted Average) |  |
Impact to Valuation From An Increase In Input |  |
Equity/Warrants [Member] |  |
Schedule of Quantitative Information About Level 3 Fair Value Measurements of Our Investments [Line Items] |  |
Fair Value | $ 77,502 | $ 36,683
Valuation Methodology | Market Approach | Cost Approach
Unobservable Input | EBITDA Multiple | Collateral Value
Range (Weighted Average) |  |
Impact to Valuation From An Increase In Input |  |
Equity/Warrants One [Member] |  |
Schedule of Quantitative Information About Level 3 Fair Value Measurements of Our Investments [Line Items] |  |
Fair Value | $ 36,245 | $ 27,014
Valuation Methodology | Cost Approach | Market Approach
Unobservable Input | Replacement Cost | EBITDA Multiple
Range (Weighted Average) |  | 4.3x - 10.3x (8.4x)
Impact to Valuation From An Increase In Input |  | Increase
Equity/Warrants Two [Member] |  |
Schedule of Quantitative Information About Level 3 Fair Value Measurements of Our Investments [Line Items] |  |
Fair Value | $ 6,000 | $ 101
Valuation Methodology | Market Approach | Recent Purchase
Unobservable Input | Revenue Multiple | Purchase Price
Range (Weighted Average) | 2.5x-3.0x (2.8x) |
Impact to Valuation From An Increase In Input | Increase |
Equity/Warrants Three [Member] |  |
Schedule of Quantitative Information About Level 3 Fair Value Measurements of Our Investments [Line Items] |  |
Fair Value | $ 2,751 | $ 83
Valuation Methodology | Income Approach | Income Approach
Unobservable Input | Market Yield | DLOM (Discount for lack of Marketability)
Range (Weighted Average) | 11.0%-28.8% (25.1%) | 27.0% - 31.0% (29.0%)
Impact to Valuation From An Increase In Input | Decrease | Decrease
Equity/Warrants Four [Member] |  |
Schedule of Quantitative Information About Level 3 Fair Value Measurements of Our Investments [Line Items] |  |
Fair Value | $ 101 |
Valuation Methodology | Cost Approach |
Unobservable Input | Collateral Value |
Range (Weighted Average) |  |
Impact to Valuation From An Increase In Input |  |
Senior Secured First Lien Term Loans One [Member] |  |
Schedule of Quantitative Information About Level 3 Fair Value Measurements of Our Investments [Line Items] |  |
Fair Value |  | $ 2,399
Valuation Methodology |  | Market Approach
Unobservable Input |  | EBITDA Multiple
Range (Weighted Average) |  | 1.8x - 2.3x (2.0x)
Impact to Valuation From An Increase In Input |  | Increase

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