v3.26.1
Fair Value Measurements - Summary of Level 3 securities held by the Fundbased on unobservable inputs (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Summary of Investment Holdings [Line Items]    
Investments at fair value $ 1,662,543,940 [1],[2] $ 1,639,681,521 [3],[4]
Level 3    
Summary of Investment Holdings [Line Items]    
Investments at fair value 1,635,656,618 1,620,593,897
Unsecured Debt    
Summary of Investment Holdings [Line Items]    
Investments at fair value 598,199 103,631
Unsecured Debt | Level 3    
Summary of Investment Holdings [Line Items]    
Investments at fair value $ 598,199 $ 103,631
Unsecured Debt | Discounted Cash Flow [Member] | Level 3 | Yield    
Summary of Investment Holdings [Line Items]    
Impact on valuation from increase in input [5] Decrease  
Unsecured Debt | Discounted Cash Flow [Member] | Level 3 | Yield | Minimum    
Summary of Investment Holdings [Line Items]    
Discount rate 15.2  
Unsecured Debt | Discounted Cash Flow [Member] | Level 3 | Yield | Maximum    
Summary of Investment Holdings [Line Items]    
Discount rate 15.2  
Unsecured Debt | Discounted Cash Flow [Member] | Level 3 | Yield | Weighted Average    
Summary of Investment Holdings [Line Items]    
Discount rate 15.2  
Unsecured Debt | Market Comparable [Member] | Level 3 | Enterprise value/Revenue multiple (EV/R)    
Summary of Investment Holdings [Line Items]    
Impact on valuation from increase in input [5] Increase Increase
Unsecured Debt | Market Comparable [Member] | Level 3 | Enterprise value/Revenue multiple (EV/R) | Minimum    
Summary of Investment Holdings [Line Items]    
Discount rate 1.3 1.2
Unsecured Debt | Market Comparable [Member] | Level 3 | Enterprise value/Revenue multiple (EV/R) | Maximum    
Summary of Investment Holdings [Line Items]    
Discount rate 1.3 1.2
Unsecured Debt | Market Comparable [Member] | Level 3 | Enterprise value/Revenue multiple (EV/R) | Weighted Average    
Summary of Investment Holdings [Line Items]    
Discount rate 1.3 1.2
First Lien Debt    
Summary of Investment Holdings [Line Items]    
Investments at fair value $ 1,613,816,643 $ 1,600,336,929
First Lien Debt | Level 3    
Summary of Investment Holdings [Line Items]    
Investments at fair value $ 1,613,816,643 $ 1,600,336,929
First Lien Debt | Market approach | Level 3 | Offered Price Member    
Summary of Investment Holdings [Line Items]    
Impact on valuation from increase in input [5] Increase Increase
First Lien Debt | Market approach | Level 3 | Offered Price Member | Minimum    
Summary of Investment Holdings [Line Items]    
Discount rate 98 99
First Lien Debt | Market approach | Level 3 | Offered Price Member | Maximum    
Summary of Investment Holdings [Line Items]    
Discount rate 99.75 99.5
First Lien Debt | Market approach | Level 3 | Offered Price Member | Weighted Average    
Summary of Investment Holdings [Line Items]    
Discount rate 98.95 99
First Lien Debt | Discounted Cash Flow [Member] | Level 3 | Yield    
Summary of Investment Holdings [Line Items]    
Impact on valuation from increase in input [5] Decrease Decrease
First Lien Debt | Discounted Cash Flow [Member] | Level 3 | Yield | Minimum    
Summary of Investment Holdings [Line Items]    
Discount rate 8.2 7.9
First Lien Debt | Discounted Cash Flow [Member] | Level 3 | Yield | Maximum    
Summary of Investment Holdings [Line Items]    
Discount rate 22.5 19.5
First Lien Debt | Discounted Cash Flow [Member] | Level 3 | Yield | Weighted Average    
Summary of Investment Holdings [Line Items]    
Discount rate 10.2 10.1
First Lien Debt | Market Comparable [Member] | Level 3 | Enterprise value/Revenue multiple (EV/R)    
Summary of Investment Holdings [Line Items]    
Impact on valuation from increase in input [5] Increase Increase
First Lien Debt | Market Comparable [Member] | Level 3 | Enterprise value/Revenue multiple (EV/R) | Minimum    
Summary of Investment Holdings [Line Items]    
Discount rate 0.3 0.3
First Lien Debt | Market Comparable [Member] | Level 3 | Enterprise value/Revenue multiple (EV/R) | Maximum    
Summary of Investment Holdings [Line Items]    
Discount rate 0.6 1.2
First Lien Debt | Market Comparable [Member] | Level 3 | Enterprise value/Revenue multiple (EV/R) | Weighted Average    
Summary of Investment Holdings [Line Items]    
Discount rate 0.3 1.1
Equity    
Summary of Investment Holdings [Line Items]    
Investments at fair value $ 21,241,776 $ 20,153,337
Equity | Level 3    
Summary of Investment Holdings [Line Items]    
Investments at fair value $ 21,241,776 $ 20,153,337
Equity | Market approach | Level 3 | Offered Price Member    
Summary of Investment Holdings [Line Items]    
Impact on valuation from increase in input [5]   Increase
Equity | Market approach | Level 3 | Offered Price Member | Minimum    
Summary of Investment Holdings [Line Items]    
Discount rate   0
Equity | Market approach | Level 3 | Offered Price Member | Maximum    
Summary of Investment Holdings [Line Items]    
Discount rate   1,000
Equity | Market approach | Level 3 | Offered Price Member | Weighted Average    
Summary of Investment Holdings [Line Items]    
Discount rate   1,000
Equity | Market approach | Level 3 | Discount rate    
Summary of Investment Holdings [Line Items]    
Impact on valuation from increase in input [5]   Decrease
Equity | Market approach | Level 3 | Discount rate | Minimum    
Summary of Investment Holdings [Line Items]    
Discount rate   40
Equity | Market approach | Level 3 | Discount rate | Maximum    
Summary of Investment Holdings [Line Items]    
Discount rate   40
Equity | Market approach | Level 3 | Discount rate | Weighted Average    
Summary of Investment Holdings [Line Items]    
Discount rate   40
Equity | Market approach | Level 3 | Net asset value    
Summary of Investment Holdings [Line Items]    
Impact on valuation from increase in input [5]   Increase
Equity | Market approach | Level 3 | Net asset value | Minimum    
Summary of Investment Holdings [Line Items]    
Discount rate   1,223
Equity | Market approach | Level 3 | Net asset value | Maximum    
Summary of Investment Holdings [Line Items]    
Discount rate   1,223
Equity | Market approach | Level 3 | Net asset value | Weighted Average    
Summary of Investment Holdings [Line Items]    
Discount rate   1,223
Equity | Market Comparable [Member] | Level 3 | Enterprise value/Revenue multiple (EV/R)    
Summary of Investment Holdings [Line Items]    
Impact on valuation from increase in input [5] Increase Increase
Equity | Market Comparable [Member] | Level 3 | Enterprise value/Revenue multiple (EV/R) | Minimum    
Summary of Investment Holdings [Line Items]    
Discount rate 0.6 1.2
Equity | Market Comparable [Member] | Level 3 | Enterprise value/Revenue multiple (EV/R) | Maximum    
Summary of Investment Holdings [Line Items]    
Discount rate 1.3 1.2
Equity | Market Comparable [Member] | Level 3 | Enterprise value/Revenue multiple (EV/R) | Weighted Average    
Summary of Investment Holdings [Line Items]    
Discount rate 1.3 1.2
Equity | Market Comparable [Member] | Level 3 | Enterprise value/EBITDA multiple (EV/EBITDA)    
Summary of Investment Holdings [Line Items]    
Impact on valuation from increase in input [5] Increase Increase
Equity | Market Comparable [Member] | Level 3 | Enterprise value/EBITDA multiple (EV/EBITDA) | Minimum    
Summary of Investment Holdings [Line Items]    
Discount rate 5.3 5.3
Equity | Market Comparable [Member] | Level 3 | Enterprise value/EBITDA multiple (EV/EBITDA) | Maximum    
Summary of Investment Holdings [Line Items]    
Discount rate 17.3 17.5
Equity | Market Comparable [Member] | Level 3 | Enterprise value/EBITDA multiple (EV/EBITDA) | Weighted Average    
Summary of Investment Holdings [Line Items]    
Discount rate 10.8 11
Equity | Book Value [Member] | Level 3 | Discount rate    
Summary of Investment Holdings [Line Items]    
Impact on valuation from increase in input [5] Decrease  
Equity | Book Value [Member] | Level 3 | Discount rate | Minimum    
Summary of Investment Holdings [Line Items]    
Discount rate 4.3  
Equity | Book Value [Member] | Level 3 | Discount rate | Maximum    
Summary of Investment Holdings [Line Items]    
Discount rate 4.3  
Equity | Book Value [Member] | Level 3 | Discount rate | Weighted Average    
Summary of Investment Holdings [Line Items]    
Discount rate 4.3  
Equity | Book Value [Member] | Level 3 | Book value multiple    
Summary of Investment Holdings [Line Items]    
Impact on valuation from increase in input [5] Increase  
Equity | Book Value [Member] | Level 3 | Book value multiple | Minimum    
Summary of Investment Holdings [Line Items]    
Discount rate 1  
Equity | Book Value [Member] | Level 3 | Book value multiple | Maximum    
Summary of Investment Holdings [Line Items]    
Discount rate 1  
Equity | Book Value [Member] | Level 3 | Book value multiple | Weighted Average    
Summary of Investment Holdings [Line Items]    
Discount rate 1  
[1] All debt investments are income producing unless otherwise indicated. All equity investments are non-income producing unless otherwise noted.
[2] Unless otherwise indicated, investments were valued using unobservable inputs and are considered Level 3 investments.
[3] All debt investments are income producing unless otherwise indicated. All equity investments are non-income producing unless otherwise noted.
[4] Unless otherwise indicated, investments were valued using unobservable inputs and are considered Level 3 investments.
[5] Represents the directional change in the fair value of the Level 3 investments that could have resulted from an increase in the corresponding input as of period end. A decrease to the unobservable input would have had the opposite effect. Significant changes in these inputs may have resulted in a significantly higher or lower fair value measurement at period end.