v3.26.1
Related Party Transactions - Summary of Company's Affiliated Investments (Detail) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Schedule of Investments [Line Items]        
Beginning Fair Value Balance [1],[2],[3],[4],[5]     $ 1,861,296,462  
Net Realized Gain/Loss     287,731 $ 3,428,181
Net change in unrealized appreciation (depreciation) on investments $ (5,195,228) $ (3,807,423) (26,079,189) (6,590,295)
Ending Fair Value Balance [6],[7],[8],[9],[10] 1,943,637,816   1,943,637,816  
Non-Controlled Affiliates [Member] | Affiliated Entity [Member]        
Schedule of Investments [Line Items]        
Beginning Fair Value Balance     785,893 835,988
Gross Additions [11]     0 33,447
Gross Reductions [12]     0 0
Net Realized Gain/Loss     0 0
Net change in unrealized appreciation (depreciation) on investments     (2,750) (39,360)
Ending Fair Value Balance 783,143 830,075 783,143 830,075
Dividend, Interest, PIK and Other Income SB     0 0
Non-Controlled Affiliates [Member] | SBS Super Holdings, LLC (Class B Units) [Member] | Affiliated Entity [Member] | Common Stocks [Member]        
Schedule of Investments [Line Items]        
Beginning Fair Value Balance     0 0
Gross Additions [11]     0 0
Gross Reductions [12]     0 0
Net Realized Gain/Loss     0 0
Net change in unrealized appreciation (depreciation) on investments     0 0
Ending Fair Value Balance 0 0 0 0
Dividend, Interest, PIK and Other Income SB     0 0
Non-Controlled Affiliates [Member] | Delaware Valley Management Holdings, Inc. [Member] | Affiliated Entity [Member] | Term Loan [Member]        
Schedule of Investments [Line Items]        
Beginning Fair Value Balance     539,108  
Gross Additions [11]     0  
Gross Reductions [12]     0  
Net Realized Gain/Loss     0  
Net change in unrealized appreciation (depreciation) on investments     (1,887)  
Ending Fair Value Balance 537,221   537,221  
Dividend, Interest, PIK and Other Income SB     0  
Non-Controlled Affiliates [Member] | Delaware Valley Management Holdings, Inc. [Member] | Affiliated Entity [Member] | Delayed Draw Term Loan [Member]        
Schedule of Investments [Line Items]        
Beginning Fair Value Balance     106,210  
Gross Additions [11]     0  
Gross Reductions [12]     0  
Net Realized Gain/Loss     0  
Net change in unrealized appreciation (depreciation) on investments     (372)  
Ending Fair Value Balance 105,838   105,838  
Dividend, Interest, PIK and Other Income SB     0  
Non-Controlled Affiliates [Member] | Delaware Valley Management Holdings, Inc. [Member] | Affiliated Entity [Member] | Revolver [Member]        
Schedule of Investments [Line Items]        
Beginning Fair Value Balance     83,827 89,190
Gross Additions [11]     0 3,568
Gross Reductions [12]     0 0
Net Realized Gain/Loss     0 0
Net change in unrealized appreciation (depreciation) on investments     (293) (4,236)
Ending Fair Value Balance 83,534 88,522 83,534 88,522
Dividend, Interest, PIK and Other Income SB     0 0
Non-Controlled Affiliates [Member] | Delaware Valley Management Holdings, Inc. [Member] | Affiliated Entity [Member] | Delayed Draw Term Loan [Member]        
Schedule of Investments [Line Items]        
Beginning Fair Value Balance     56,748 60,364
Gross Additions [11]     0 2,415
Gross Reductions [12]     0 0
Net Realized Gain/Loss     0 0
Net change in unrealized appreciation (depreciation) on investments     (198) (2,839)
Ending Fair Value Balance $ 56,550 59,940 56,550 59,940
Dividend, Interest, PIK and Other Income SB     $ 0 0
Non-Controlled Affiliates [Member] | Delaware Valley Management Holdings, Inc. [Member] | Affiliated Entity [Member] | Delayed Draw Term Loan [Member]        
Schedule of Investments [Line Items]        
Beginning Fair Value Balance       112,997
Gross Additions [11]       4,520
Gross Reductions [12]       0
Net Realized Gain/Loss       0
Net change in unrealized appreciation (depreciation) on investments       (5,313)
Ending Fair Value Balance   112,184   112,184
Dividend, Interest, PIK and Other Income SB       0
Non-Controlled Affiliates [Member] | Delaware Valley Management Holdings, Inc.[Member] | Affiliated Entity [Member] | Term Loan [Member]        
Schedule of Investments [Line Items]        
Beginning Fair Value Balance       573,437
Gross Additions [11]       22,944
Gross Reductions [12]       0
Net Realized Gain/Loss       0
Net change in unrealized appreciation (depreciation) on investments       (26,972)
Ending Fair Value Balance   $ 569,429   569,429
Dividend, Interest, PIK and Other Income SB       $ 0
[1] Aggregate gross unrealized appreciation for federal income tax purposes is $23,273,406; aggregate gross unrealized depreciation for federal income tax purposes is $37,581,247. Net unrealized depreciation is $14,307,841. As of December 31, 2025, the cost basis of investments owned was substantially identical for both book and tax purposes.
[2] Generally, the interest rate on floating interest rate investments is at benchmark rate plus spread, subject to an interest rate floor. The borrower has an option to choose the benchmark rate, such as the Secured Overnight Financing Rate including adjustment, if any (“S”) or the U.S. Prime Rate (“P”). The spread may change based on the type of rate used. The terms in the Consolidated Schedule of Investments disclose the actual interest rate in effect as of the reporting period. S loans are typically indexed to 30-day, 90-day or 180-day rates (1M, 3M or 6M, respectively) at the borrower’s option. As of December 31, 2025, rates for 1M S, 3M S and 6M S are 3.69%, 3.65%, and 3.57%, respectively. As of December 31, 2025, the P was 6.75%. For investments with multiple reference rates or alternate base rates, the interest rate shown is the weighted average interest rate in effect at December 31, 2025.
[3] Percentages are based on net assets.
[4] Unless otherwise indicated, all securities are valued using significant unobservable inputs, which are categorized as Level 3 assets under the definition of Financial Accounting Standards Board’s Accounting Standards Codification 820 fair value hierarchy.
[5] Unless otherwise indicated, all securities represent co-investments made with the Fund’s affiliates in accordance with the terms of the exemptive relief received from the U.S. Securities and Exchange Commission. See Note 3 “Related Party Transactions”.
[6] Aggregate gross unrealized appreciation for federal income tax purposes is $19,590,850; aggregate gross unrealized depreciation for federal income tax purposes is $60,586,204. Net unrealized depreciation is $40,995,354. As of June 30, 2026, the cost basis of investments owned was substantially identical for both book and tax purposes.
[7] Generally, the interest rate on floating interest rate investments is at benchmark rate plus spread, subject to an interest rate floor. The borrower has an option to choose the benchmark rate, such as the Secured Overnight Financing Rate including adjustment, if any (“S”) or the U.S. Prime Rate (“P”). The spread may change based on the type of rate used. The terms in the Consolidated Schedule of Investments disclose the actual interest rate in effect as of the reporting period. S loans are typically indexed to 30-day, 90-day or 180-day rates (1M, 3M or 6M, respectively) at the borrower’s option. As of June 30, 2026, rates for 1M S, 3M S and 6M S are 3.65%, 3.73%, and 3.85%, respectively. As of June 30, 2026, the P was 6.75%. For investments with multiple reference rates or alternate base rates, the interest rate shown is the weighted average interest rate in effect at June 30, 2026.
[8] Percentages are based on net assets.
[9] Unless otherwise indicated, all securities are valued using significant unobservable inputs, which are categorized as Level 3 assets under the definition of Financial Accounting Standards Board’s Accounting Standards Codification 820 fair value hierarchy.
[10] Unless otherwise indicated, all securities represent co-investments made with the Fund’s affiliates in accordance with the terms of the exemptive relief received from the U.S. Securities and Exchange Commission. See Note 3 “Related Party Transactions”.
[11] Gross additions may include increases in the cost basis of investments resulting from new portfolio investments, PIK, the accretion of discounts, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company into this category from a different category.
[12] Gross reductions may include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company out of this category into a different category.