v3.25.2
Related Party Agreements and Transactions - Summary of Company's Affiliated Investments (Details) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Related Party Transaction [Line Items]          
Investment Owned, at Fair Value, Beginning Balance [1],[2]     $ 1,369,240,440    
Realized Gain (Losses)     (1,882,461) $ (1,027,779)  
Investment Owned, at Fair Value, Ending Balance $ 1,872,890,796 [3]   1,872,890,796 [3]   $ 1,369,240,440 [1],[2]
Fidelity High Income Central Fund [Member]          
Related Party Transaction [Line Items]          
Investment Owned, at Fair Value, Beginning Balance     20,830,333 0 0
Gross Additions     342,300   20,470,025
Gross Reductions     (20,885,039)   0
Net change in unrealized appreciation (depreciation)     (360,308)   360,308
Realized Gain (Losses)     72,714   0
Investment Owned, at Fair Value, Ending Balance 0   0   20,830,333
Dividend and Interest Income     262,866   605,305
Fidelity Floating Rate Central Fund [Member]          
Related Party Transaction [Line Items]          
Investment Owned, at Fair Value, Beginning Balance     27,139,548 24,795,483 24,795,483
Gross Additions     86,523,649   2,421,083
Gross Reductions     (25,000,000)   0
Net change in unrealized appreciation (depreciation)     (671,295)   (77,018)
Realized Gain (Losses)     115,609   0
Investment Owned, at Fair Value, Ending Balance 88,107,511   88,107,511   27,139,548
Dividend and Interest Income     2,441,423   2,439,715
Non-Controlled / Affiliate Investments          
Related Party Transaction [Line Items]          
Investment Owned, at Fair Value, Beginning Balance     47,969,881 24,795,483 24,795,483
Gross Additions     86,865,949   22,891,108
Gross Reductions     (45,885,039)   0
Net change in unrealized appreciation (depreciation) 70,869 $ (178,332) (1,031,603) $ (149,760) 283,290
Realized Gain (Losses)     188,323   0
Investment Owned, at Fair Value, Ending Balance $ 88,107,511   88,107,511   47,969,881
Dividend and Interest Income     $ 2,704,289   $ 3,045,020
[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] Unless otherwise indicated, investments were valued using unobservable inputs and are considered Level 3 investments.