v3.26.1
Expenses and Transactions with Affiliates (Additional Information) (Details) - USD ($)
 3 Months Ended
Mar. 11, 2024
Jun. 09, 2023
May 10, 2023
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Investments in and Advances to Affiliates [Line Items]            
Management fees       $ 2,478,991 $ 2,420,506  
Management fee payable       832,491   $ 815,967
Administration fees       495,773 483,976  
Expense support       384,633 149,187  
Affiliated holdings       $ 0   $ 0
Investments, net assets, percentage       208.55% [1]   209.61% [2]
Investment company expense limitation agreement, description       On January 1, 2025, the Fund entered into an Amended and Restated Expense Limitation Agreement (the “Expense Limitation Agreement”) with the Adviser. The Adviser agrees to pay on a monthly basis Other Operating Expenses of the Fund on the Fund’s behalf (each such payment, an “Expense Payment”) such that Other Operating Expenses of the Fund do not exceed 0.50% (on annualized basis) of the Fund’s average net assets (“Expense Limitation”). “Other Operating Expenses” means the Fund’s professional fees (including accounting, legal, and auditing fees), custodian and transfer agent fees, third party valuation agent fees, insurance costs, director fees, administration fee, and other related costs or expenses, but excluding the following: (a) management fees and any incentive fees, if applicable; (b) portfolio transaction and other investment-related costs (including brokerage commissions, dealer and underwriter spreads, prime broker fees and expenses, fees and expenses associated with the Fund’s securities lending program, and dividend expenses related to short sales); (c) interest, financing and structuring costs and other related expenses for borrowings and line(s) of credit; (d) taxes; (e) the Fund’s proportional share of expenses related to co-investments; (f) acquired fund fees and expenses (including fees and expenses associated with a wholly owned subsidiary); (g) Rule 12b-1 fees, if any; (h) expenses of printing and mailing proxy materials to shareholders of the Fund; (i) all other expenses incidental to holding meetings of the Fund’s shareholders, including proxy solicitations therefor; and (j) such non-recurring and/or extraordinary as may arise, including actions, suits or proceedings to which the Fund is or is threatened to be a party and the legal obligation that the Fund may have to indemnify the Fund’s directors and officers with respect thereto.    
Recoupment of reimbursed expenses       $ 0 0  
Transfer Agent Agreement [Member]            
Investments in and Advances to Affiliates [Line Items]            
Transfer agency services fees       200,000 200,000  
Expense Limitation Agreement [Member]            
Investments in and Advances to Affiliates [Line Items]            
Expense support       $ 400,000 100,000  
Affiliated Entity [Member]            
Investments in and Advances to Affiliates [Line Items]            
Investments, net assets, percentage       100.00%   100.00%
Affiliated Entity [Member] | Investment Advisory Agreement [Member] | Fidelity Diversifying Solutions LLC [Member]            
Investments in and Advances to Affiliates [Line Items]            
Management fees       $ 2,500,000 2,400,000  
Management fee payable       800,000   $ 800,000
Management fee, percent     1.25%      
Affiliated Entity [Member] | Administration Agreement [Member] | Fidelity Diversifying Solutions LLC [Member]            
Investments in and Advances to Affiliates [Line Items]            
Management fee, percent   0.25%        
Administration fees       $ 500,000 $ 500,000  
Administrative fees, description   Fund pays an administration fee to FDS monthly in arrears at an annual rate of 0.25% of the average daily net assets of the Fund throughout the month.        
Affiliated Entity [Member] | Transfer Agent Agreement [Member]            
Investments in and Advances to Affiliates [Line Items]            
Transfer fees, description FIIOC receives an asset-based fee with respect to Units. The Fund pays a fee for transfer agent services equal to 0.00833% (0.10% on an annualized basis) of the Fund’s net assets as of the end of the last business day of the month. Such fees are payable in arrears.          
Affiliated Entity [Member] | Expense Limitation Agreement [Member]            
Investments in and Advances to Affiliates [Line Items]            
Expense support agreement maturity date       Jan. 01, 2026    
Maximum | Affiliated Entity [Member] | Expense Limitation Agreement [Member]            
Investments in and Advances to Affiliates [Line Items]            
Percentage of other operating expenses       0.50%    
Expense payment term       45 days    
Funds Manager, LLC            
Investments in and Advances to Affiliates [Line Items]            
Investments, net assets, percentage       10.00%   10.00%
Number of Units       1,731.84   1,699.3
[1] All debt investments are income producing unless otherwise indicated. All equity investments are non-income producing unless otherwise noted.
[2] All debt investments are income producing unless otherwise indicated. All equity investments are non-income producing unless otherwise noted.