v3.26.3
N-2 - $ / shares
 9 Months Ended
Sep. 30, 2026
Jul. 31, 2026
Dec. 31, 2025
 [1]
Sep. 30, 2025
Dec. 31, 2024
Cover [Abstract]          
Entity Central Index Key 0002112554        
Amendment Flag false        
Securities Act File Number 000-56854        
Document Type 10-Q        
Entity Registrant Name Fidelity Private Credit Company LLC        
Entity Address, Address Line One 245 Summer Street        
Entity Address, City or Town Boston        
Entity Address, State or Province MA        
Entity Address, Postal Zip Code 02210        
City Area Code 617        
Local Phone Number 563-7000        
Entity Emerging Growth Company true        
Entity Ex Transition Period false        
Other Annual Expenses [Abstract]          
Other Expenses, Note [Text Block]

Other Expenses

For the three and nine months ended September 30, 2026, total other expenses were $1.5 million and $4.2 million, respectively. For the three and nine months ended September 30, 2025, total other expenses were $1.3 million and $3.7 million, respectively. The relatively flat change in total other expenses was driven by consistent balances in larger associated costs with managing the Fund such as administration fees and professional fees, offset by fluctuations across the remaining expense balances.

        
Management Fee not based on Net Assets, Note [Text Block]

Management Fees

For the three and nine months ended September 30, 2026, management fees were $2.5 million and $7.5 million, respectively. For the three and nine months ended September 30, 2025, management fees were $2.5 million and $7.4 million, respectively. The flat change in management fees was due to stable net assets, compared to the three and nine months ended September 30, 2025. Under the Advisory Agreement, which has governed the Management Fee since the Merger, the Management Fee is calculated based on the Fund’s net assets as of the beginning of the first business day of each month, rather than on average daily net assets throughout the month as under the Prior Advisory Agreement, at the same annual rate of 1.25%, payable monthly in arrears.

        
General Description of Registrant [Abstract]          
Risk Factors [Table Text Block]

Item 1A. Risk Factors.

In addition to the other information set forth in this report, you should carefully consider the risk factors disclosed in our registration statement on Form 10, filed with the SEC on May 29, 2026, as amended on July 24, 2026.

        
NAV Per Share $ 10.25 $ 10.3 $ 10.34 $ 9.5 $ 9.68
[1] Refer to “Note 10 Reorganization.”, for additional information regarding the Merger. Amounts have been adjusted to reflect the resulting capital structure change. Information presented for periods prior to the Merger reflects the historical results of the Acquired Fund.