v3.26.1
Related Party Transactions (Details)
 12 Months Ended 49 Months Ended
Apr. 01, 2022
USD ($)
shares
Sep. 30, 2025
USD ($)
component
shares
Sep. 30, 2024
USD ($)
shares
Sep. 30, 2023
USD ($)
Sep. 30, 2025
USD ($)
component
shares
Related Party Transaction [Line Items]          
Base management fee   $ 23,673,000 $ 11,815,000 $ 2,759,000  
Base management fee waived   15,065,000 7,519,000 1,756,000  
Incentive fee waived   9,972,000      
Subscriptions   $ 1,523,641,000 $ 1,032,820,000   $ 1,523,641,000
Common stock, shares issued (in shares) | shares   71,236,992.933 43,346,830.17   71,236,992.933
Contributions   $ 1,036,370,000 $ 635,966,000   $ 1,036,370,000
Related Party          
Related Party Transaction [Line Items]          
Income Incentive Fee incurred   19,943,000 11,799,000 2,682,000  
Incentive fee waived   9,972,000 8,130,000 2,682,000  
Incentive fee accrued   477,000 880,000 0  
Capital gain incentive fee payable   1,357,000 880,000   1,357,000
Capital gain incentive fee payment   0      
Investment company, reimbursable excess expense, amount paid   304,000 304,000   304,000
Related Party | Revolving Credit Facility          
Related Party Transaction [Line Items]          
Line of credit facility, maximum borrowing capacity   100,000,000     100,000,000
Related Party | GGP Class B-P, LLC          
Related Party Transaction [Line Items]          
Subscriptions $ 100,000,000 $ 100,011,000     $ 100,011,000
Common stock, shares issued (in shares) | shares   6,667,366.664     6,667,366.664
Contributions   $ 100,011,000     $ 100,011,000
Common stock, shares, issued, dividend reinvestment plan (in shares) | shares   139,172.373     139,172.373
Related Party | GGP Class B-P, LLC | Common Stock | GGP Holdings LP          
Related Party Transaction [Line Items]          
Related party transaction, share transferred (in shares) | shares 700.000        
Investment Advisory Agreement | Related Party          
Related Party Transaction [Line Items]          
Management and service fee, number of components | component   2     2
Management and service fees, base rate   1.375%      
Management and service fees, cash equivalents maturity period   270 days      
Investment company, liquidity event, management and service fees, base rate waiver, threshold percentage of fair value of average adjusted gross assets   0.50%     0.50%
Base management fee   $ 23,673,000 11,815,000 2,759,000  
Base management fee waived   $ 15,065,000 7,519,000 1,756,000  
Number of inventive fee components | component   3     3
Incentive fee accrued   $ 0 0 0  
Capital gain incentive fee payable   0 0   $ 0
Investment company, excess expense reimbursable   $ 1,936,000 1,146,000 $ 988,000  
Investment Advisory Agreement | Related Party | Periods Ending On Or Prior To The Date Of The Closing Of The Liquidity Event          
Related Party Transaction [Line Items]          
Management and service fees, incentive rate cap, percentage of cumulative pre-incentive fee net income   10.00%      
Investment Advisory Agreement | Related Party | Periods Ending After The Date Of The Closing Of The Liquidity Event          
Related Party Transaction [Line Items]          
Management and service fees, incentive rate cap, percentage of cumulative pre-incentive fee net income   20.00%      
Investment Management Agreement - Incentive Rate, Quarterly Hurdle Rate | Related Party          
Related Party Transaction [Line Items]          
Management and service fees, incentive rate   1.75%      
Investment Management Agreement - Quarterly Incentive Rate, Criteria Not Met | Related Party          
Related Party Transaction [Line Items]          
Management and service fees, incentive rate   0.00%      
Investment Management Agreement - Quarterly Incentive Rate, Criteria Not Met | Related Party | Periods Ending On Or Prior To The Date Of The Closing Of The Liquidity Event          
Related Party Transaction [Line Items]          
Management and service fees, incentive rate   0.00%      
Investment Management Agreement - Incentive Rate, Pre-Incentive Fee Net Investment Income Below Catch-Up | Related Party          
Related Party Transaction [Line Items]          
Management and service fees, incentive rate   100.00%      
Investment Management Agreement - Incentive Rate, Pre-Incentive Fee Net Investment Income Below Catch-Up | Related Party | Periods Ending On Or Prior To The Date Of The Closing Of The Liquidity Event          
Related Party Transaction [Line Items]          
Management and service fees, incentive rate   100.00%      
Investment Advisory Agreement, Cumulative Pre-Incentive Fee Net Investment Income | Related Party          
Related Party Transaction [Line Items]          
Management and service fees, incentive rate   20.00%      
Investment Advisory Agreement, Cumulative Pre-Incentive Fee Net Investment Income | Related Party | Periods Ending On Or Prior To The Date Of The Closing Of The Liquidity Event          
Related Party Transaction [Line Items]          
Management and service fees, incentive rate   10.00%      
Investment Advisory Agreement, Capital Gain Incentive Fee Base | Related Party          
Related Party Transaction [Line Items]          
Management and service fees, incentive rate   20.00%      
Investment company, liquidity event, management and service fees, incentive rate waiver, threshold percentage of capital gain incentive fee base   10.00%     10.00%
Investment Advisory Agreement, Capital Gain Incentive Fee Base | Related Party | Periods Ending On Or Prior To The Date Of The Closing Of The Liquidity Event          
Related Party Transaction [Line Items]          
Management and service fees, incentive rate   10.00%      
Investment Advisory Agreement, Capital Gain Incentive Fee Base | Related Party | Periods Ending After The Date Of The Closing Of The Liquidity Event          
Related Party Transaction [Line Items]          
Management and service fees, incentive rate   20.00%      
Investment Advisory Agreement, Subordinated Liquidation Incentive Fee Base | Related Party          
Related Party Transaction [Line Items]          
Management and service fees, incentive rate   10.00%      
Administration Agreement | Related Party          
Related Party Transaction [Line Items]          
Accounts payable and other liabilities   $ 606,000 355,000   $ 606,000
Investment, Adviser | Related Party          
Related Party Transaction [Line Items]          
Organization cost and professional fee         166,000
Investment company, excess expense reimbursable   700,000      
Expenses Paid | Related Party          
Related Party Transaction [Line Items]          
Accounts payable and other liabilities   $ 585,000 $ 308,000   $ 585,000
Conversion To Maryland Corporation, Acquisition Of Stock | Related Party | GGP Holdings LP          
Related Party Transaction [Line Items]          
Sale of stock, number of shares issued in transaction (in shares) | shares 700.000        
Subscriptions $ 11,000