Related Party Agreements and Transactions (Additional Information) (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 |
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| Related Party Transaction [Line Items] | |||||
| Management fees | $ 3,146,157 | $ 1,749,476 | $ 5,893,643 | $ 3,210,454 | |
| Management fee payable | 1,089,864 | $ 1,089,864 | $ 818,848 | ||
| Investment company expense limitation agreement, description | On April 17, 2025, the Fund entered into an Amended and Restated Expense Limitation Agreement (the “Expense Limitation Agreement”) with the Adviser, effective as of May 1, 2025. Pursuant to the Expense Limitation Agreement, the Adviser is obligated to pay on a monthly basis Other Operating Expenses (as defined below) 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 0.70% (on an annualized basis) of the Fund’s average net assets (the “Expense Limitation”). | ||||
| Income based incentive fee payable | 3,378,909 | $ 3,378,909 | 2,805,856 | ||
| Capital gains incentive fee payable | 0 | 0 | $ 822,417 | ||
| Administration fees | $ 813,807 | 453,724 | $ 1,523,249 | 831,925 | |
| Common stock, shares outstanding | 40,931,723 | 40,931,723 | 30,097,549 | ||
| Transfer Agent [Member] | |||||
| Related Party Transaction [Line Items] | |||||
| Other general and administrative expenses | $ 400,000 | $ 700,000 | |||
| Class D shares [Member] | |||||
| Related Party Transaction [Line Items] | |||||
| Common stock, shares outstanding | 460 | 460 | 435 | ||
| Affiliated Entity [Member] | |||||
| Related Party Transaction [Line Items] | |||||
| Due to affiliates | $ 91,865 | $ 91,865 | $ 201,579 | ||
| Due to affiliates, net | 91,865 | 91,865 | 201,579 | ||
| Administration distribution service and transfer agent fees payable | 400,000 | 300,000 | |||
| Due to other affiliate | 100,000 | ||||
| Other Receivables | 300,000 | 300,000 | 200,000 | ||
| Affiliated Entity [Member] | Administrative Service [Member] | Fidelity Diversifying Solutions LLC [Member] | |||||
| Related Party Transaction [Line Items] | |||||
| Administration fees | 800,000 | 500,000 | $ 1,500,000 | 800,000 | |
| Administrative fees ,description | the Fund pays the Administrator a monthly fee of 0.02666% (0.32% on an annualized basis) of the Fund’s month-end NAV and reimburses the Administrator for the costs and expenses of the Fund incurred by the Administrator. | ||||
| Due to affiliates | 300,000 | $ 300,000 | 200,000 | ||
| Due to affiliates, net | 300,000 | $ 300,000 | 200,000 | ||
| Affiliated Entity [Member] | Distribution and Shareholder Service [Member] | Fidelity Distributors Company LLC [Member] | |||||
| Related Party Transaction [Line Items] | |||||
| Incentive fees, description | The Managing Dealer is a broker-dealer registered with the SEC and is a member of the Financial Industry Regulatory Authority. The Managing Dealer Agreement may be terminated at any time, without the payment of any penalty, by vote of a majority of the Fund’s trustees who are not “interested persons,” as defined in the 1940 Act, of the Fund and who have no direct or indirect financial interest in the Fund’s distribution plan or the Managing Dealer Agreement or by vote a majority of the outstanding voting securities of the Fund, on not more than 60 days’ written notice to the Managing Dealer or the Adviser. This Agreement will automatically terminate in the event of its assignment, as defined in the 1940 Act. | ||||
| Intra-Entity agreement description | The Managing Dealer receives shareholder servicing and/or distribution fees monthly in arrears at a contractual rate of 0.85% per annum of the aggregate value of the Fund’s net assets attributable to Class S shares as of the beginning of the first calendar day of the month. The Managing Dealer receives shareholder servicing fees monthly in arrears at a contractual rate of 0.25% per annum of the aggregate value of the Fund’s net assets attributable to Class D shares as of the beginning of the first calendar day of the month. | ||||
| Affiliated Entity [Member] | Expense Support Agreement [Member] | Fidelity Diversifying Solutions LLC [Member] | |||||
| Related Party Transaction [Line Items] | |||||
| Percentage of other operating expenses | 0.70% | ||||
| Affiliated Entity [Member] | Investment Advisory, Management and Administrative Service [Member] | Fidelity Diversifying Solutions LLC [Member] | |||||
| Related Party Transaction [Line Items] | |||||
| Management fee, description | The management fees are payable monthly in arrears at an annual rate of 1.25% of the value of the Fund’s net assets as of the beginning of the first business day of the applicable month. | ||||
| Termination of agreement, description | The Fund may terminate the Advisory Agreement upon 60 days’ written notice, and the Administration Agreement upon 120 days’ written notice, without payment of any penalty. The decision to terminate either agreement may be made by a majority of the Board or the shareholders holding a majority of the Fund’s outstanding voting securities, which means the lesser of (1) 67% or more of the voting securities present at a meeting if more than 50% of the outstanding voting securities are present or represented by proxy, or (2) more than 50% of the outstanding voting securities. In addition, without payment of any penalty, the Adviser may terminate the Advisory Agreement upon 120 days’ written notice and the Administrator may terminate the Administration Agreement upon 120 days’ written notice. The Advisory Agreement will automatically terminate within the meaning of the 1940 Act and related SEC guidance and interpretations in the event of its assignment. | ||||
| Affiliated Entity [Member] | Asset Management [Member] | Fidelity Diversifying Solutions LLC [Member] | |||||
| Related Party Transaction [Line Items] | |||||
| Management fees | 3,100,000 | 1,700,000 | $ 5,900,000 | 3,200,000 | |
| Management fee payable | 1,100,000 | $ 1,100,000 | 800,000 | ||
| Affiliated Entity [Member] | Investment Performance [Member] | Fidelity Diversifying Solutions LLC [Member] | |||||
| Related Party Transaction [Line Items] | |||||
| Management and service fees, incentive rate | 12.50% | ||||
| Incentive fees, description | The incentive fee based on the Fund’s income is based on Pre-Incentive Fee Net Investment Income Returns attributable to each class of the Fund’s Common Shares. “Pre-Incentive Fee Net Investment Income Returns” means dividends, cash interest or other distributions or other cash income and any third-party fees received from portfolio companies such as upfront fees, commitment fees, origination fees, amendment fees, ticking fees and break-up fees, as well as prepayment premiums, but excluding fees for providing managerial assistance and fees earned by the Adviser or an affiliate accrued during the month, minus operating expenses for the month (including the management fee, taxes, any expenses payable under the Advisory Agreement and an administration agreement with the Fund’s administrator, any expense of securitizations, and interest expense or other financing fees and any dividends paid on preferred stock, but excluding the incentive fee and shareholder servicing and /or distribution fees). Pre-Incentive Fee Net Investment Income Returns includes, in the case of investments with a deferred interest feature (such as OID, debt instruments with PIK interest and zero-coupon securities), accrued income that the Fund has not yet received in cash. Pre-Incentive Fee Net Investment Income Returns do not include any realized capital gains, realized capital losses or unrealized capital appreciation or depreciation. The impact of expense support payments and recoupments are also excluded from Pre-Incentive Fee Net Investment Income Returns.Pre-Incentive Fee Net Investment Income Returns, expressed as a rate of return on the value of the Fund’s net assets at the end of the immediately preceding quarter, is compared to a “hurdle rate” of return of 1.25% per quarter (5.00% annualized).The Fund pays the Adviser an income based incentive fee quarterly in arrears with respect to the Fund’s Pre-Incentive Fee Net Investment Income Returns in each calendar quarter as follows:▪No incentive fee based on Pre-Incentive Fee Net Investment Income Returns in any calendar quarter in which the Fund’s Pre-Incentive Fee Net Investment Income Returns attributable to the applicable share class do not exceed the hurdle rate of 1.25% per quarter (5.00% annualized);▪100% of the dollar amount of the Fund’s Pre-Incentive Fee Net Investment Income Returns with respect to that portion of such Pre-Incentive Fee Net Investment Income Returns attributable to the applicable share class, if any, that exceeds the hurdle rate but is less than a rate of return of 1.43% (5.72% annualized). This portion of the Fund’s Pre-Incentive Fee Net Investment Income Returns (which exceeds the hurdle rate but is less than 1.43%) is referred to as the “catch-up.” The “catch-up” is meant to provide the Adviser with approximately 12.5% of the Fund’s Pre-Incentive Fee Net Investment Income Returns as if a hurdle rate did not apply if this net investment income exceeds 1.43% in any calendar quarter; and▪12.5% of the dollar amount of the Fund’s Pre-Incentive Fee Net Investment Income Returns attributable to the applicable share class, if any, that exceed a rate of return of 1.43% (5.72% annualized). This reflects that once the hurdle rate is reached and the catch-up is achieved, 12.5% of all Pre-Incentive Fee Net Investment Income Returns thereafter are allocated to the Adviser.These calculations are pro-rated for any period of less than three months and adjusted for any share issuances or repurchases during the relevant quarter. | ||||
| Income based incentive fees | 3,400,000 | 2,100,000 | $ 6,500,000 | 3,800,000 | |
| Income based incentive fee payable | 3,400,000 | 3,400,000 | 2,800,000 | ||
| Capital gains incentive fees | 0 | 100,000 | 800,000 | 20,000.00 | |
| Capital gains incentive fee payable | $ 0 | $ 0 | $ 800,000 | ||
| Affiliated Entity [Member] | Investment Performance [Member] | Fidelity Diversifying Solutions LLC [Member] | Hurdle Rate [Member] | |||||
| Related Party Transaction [Line Items] | |||||
| Management and service fees, incentive rate | 1.25% | ||||
| Fidelity Investments Institutional Operations Company LLC [Member] | Class D shares [Member] | Fidelity Private Credit Fund Company [Member] | |||||
| Related Party Transaction [Line Items] | |||||
| Common stock, shares outstanding | 460 | 460 | 435 | ||
| Related party ownership percentage | 100.00% | 100.00% | 100.00% | ||
| Fidelity Investments Institutional Operations Company LLC [Member] | Affiliated Entity [Member] | Amended and Restated Expense Agreement [Member] | |||||
| Related Party Transaction [Line Items] | |||||
| Reimbursement payment minimum period | 45 days | ||||
| Fidelity Investments Institutional Operations Company LLC [Member] | Affiliated Entity [Member] | Transfer Agent [Member] | |||||
| Related Party Transaction [Line Items] | |||||
| Transfer fees, description | Each class pays a fee for transfer agent services equal to 0.0125% (0.15% on an annualized basis) of class-level net assets as of the end of the last business day of the month. Such fees are payable in arrears. | ||||
| Other general and administrative expenses | $ 200,000 | $ 400,000 | |||
| Due to affiliates | $ 100,000 | $ 100,000 | $ 100,000 | ||
| Due to affiliates, net | $ 100,000 | $ 100,000 | $ 100,000 | ||