Commitments and Contingencies - Schedule of unfunded loan commitments (Details) - Unfunded Loan Commitment - USD ($)	Dec. 31, 2025	Dec. 31, 2024
Other Commitments [Line Items]
Unfunded Commitment	$ 256,175,901	$ 232,961,220
Revolving Credit Facility \| Ab Centers Acquisition Corporation [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,840,527	1,840,527
Revolving Credit Facility \| ACP Avenu Buyer, LLC
Other Commitments [Line Items]
Unfunded Commitment		5,081,518
Revolving Credit Facility \| ACP Avenu Midco LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	6,673,945
Revolving Credit Facility \| ACP Falcon Buyer Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment	6,500,000	6,500,000
Revolving Credit Facility \| ACP Packaging IntermediateCo, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	3,626,997
Revolving Credit Facility \| Aep Passion Intermediate Holdings, Inc. [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,152,223	512,237
Revolving Credit Facility \| Alcami Corporation [Member]
Other Commitments [Line Items]
Unfunded Commitment	5,782,192	6,791,781
Revolving Credit Facility \| Astro Acquisition LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment		3,000,000
Revolving Credit Facility \| All-Lift Systems, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,746,575
Revolving Credit Facility \| Atlas AU Bidco Pty Ltd / Atlas US Finco, Inc. [Member]
Other Commitments [Line Items]
Unfunded Commitment	4,338,106	3,389,831
Revolving Credit Facility \| Bebright Mso, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	2,015,197	1,932,553
Revolving Credit Facility \| Behavioral Framework LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,608,579
Revolving Credit Facility \| Belt Power Holdings LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	3,418,803	3,418,803
Revolving Credit Facility \| Benefit Plan Administrators of Eau Claire, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,209,677	1,209,677
Revolving Credit Facility \| BPCP Craftsman Buyer, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	156,863
Revolving Credit Facility \| Bron Buyer, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	4,250,000	5,000,000
Revolving Credit Facility \| C2dx, Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment	101,695	120,339
Revolving Credit Facility \| Cadence - Southwick, Inc. [Member]
Other Commitments [Line Items]
Unfunded Commitment	2,151,809	2,292,145
Revolving Credit Facility \| CCI Prime, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,050,000	3,500,000
Revolving Credit Facility \| Copperweld Group, Inc. [Member]
Other Commitments [Line Items]
Unfunded Commitment		2,199,662
Revolving Credit Facility \| Cait Intermediate, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,520,270
Revolving Credit Facility \| Currier Plastics Acquisition, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,913,807
Revolving Credit Facility \| Cytracom LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	561,798	561,798
Revolving Credit Facility \| Digital Experience Services, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	192,308
Revolving Credit Facility \| Double E Company, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,057,269	202,643
Revolving Credit Facility \| DPT Management, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	60,833	250,000
Revolving Credit Facility \| Dragonfly Pond Works [Member]
Other Commitments [Line Items]
Unfunded Commitment	875,146	875,146
Revolving Credit Facility \| Dynamic Connections, Ltd [Member]
Other Commitments [Line Items]
Unfunded Commitment	115,473	115,473
Revolving Credit Facility \| Ecir Intermediate II LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,030,422
Revolving Credit Facility \| Eds Buyer, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	85,106	85,106
Revolving Credit Facility \| Endurance PT Technology Buyer Corporation [Member]
Other Commitments [Line Items]
Unfunded Commitment		3,080,645
Revolving Credit Facility \| Erosion Intermediate Holdings LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,339,286	1,339,286
Revolving Credit Facility \| EverSmith Brands Intermediate Holding Company [Member]
Other Commitments [Line Items]
Unfunded Commitment	102,941	102,941
Revolving Credit Facility \| Fertility (ITC) Investment Holdco, LLC / Fertility (ITC) Buyer, Inc. [Member]
Other Commitments [Line Items]
Unfunded Commitment	2,727,273	2,727,273
Revolving Credit Facility \| Finastra USA Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment		2,948,762
Revolving Credit Facility \| Firmapak Intermediary LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	138,889
Revolving Credit Facility \| Future Care Associates LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	5,000,000	5,000,000
Revolving Credit Facility \| Harmony Hit US Holdings Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment	3,024,817	3,024,817
Revolving Credit Facility \| Houseworks Holdings, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	2,375,819	4,891,392
Revolving Credit Facility \| Hy-Tek Opco, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	3,177,173
Revolving Credit Facility \| Identiti Resources LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,537,976	2,317,497
Revolving Credit Facility \| Infusion Services Management LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,059,412	1,332,808
Revolving Credit Facility \| Insight Technology Operation LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	124,611
Revolving Credit Facility \| La-Co Industries, Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment	760,456	760,456
Revolving Credit Facility \| Lake Air Products, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	5,000,000	6,000,000
Revolving Credit Facility \| Luminii LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,098,901
Revolving Credit Facility \| Midas Foods International LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	163,934	163,934
Revolving Credit Facility \| Mobotrex, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,138,743	283,466
Revolving Credit Facility \| Mri Acquisitions, Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,833,333	1,833,333
Revolving Credit Facility \| Mse Supplies, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	778,846	1,298,077
Revolving Credit Facility \| Mustang Prospects Purchaser LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,894,660	2,368,325
Revolving Credit Facility \| NAM Acquisition Co LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	481,928	481,928
Revolving Credit Facility \| National Power, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	373,575	373,575
Revolving Credit Facility \| NE Ortho Management Services, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	323,102	807,754
Revolving Credit Facility \| Nutrail Acquisitionco, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	173,410
Revolving Credit Facility \| Penn Quarter Partners, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,402,842
Revolving Credit Facility \| Penta Fine Ingredients, Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment	123,457
Revolving Credit Facility \| Pave America Interco, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment		1,177,764
Revolving Credit Facility \| Perimeter Solutions Group, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	4,260,850	3,750,000
Revolving Credit Facility \| PLA Buyer, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,105,263	2,105,263
Revolving Credit Facility \| Pillr Health Intermediate II, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	3,428,619
Revolving Credit Facility \| Premier Dental Products Company LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	625,000
Revolving Credit Facility \| Principal Lighting Group Holdings, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	3,106,357	3,106,357
Revolving Credit Facility \| Quick Roofing Acquisition, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	6,800,000	5,100,000
Revolving Credit Facility \| R1 Holdings, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	574,661	4,194,570
Revolving Credit Facility \| Refresh Buyer LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,595,092	2,822,086
Revolving Credit Facility \| Roofing Services Solutions LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	895,833	2,916,666
Revolving Credit Facility \| Routeware, Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment	818,182	1,022,727
Revolving Credit Facility \| RPX Corporation [Member]
Other Commitments [Line Items]
Unfunded Commitment	816,327	816,327
Revolving Credit Facility \| Ruppert Landscape, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment		4,347,826
Revolving Credit Facility \| RxStrategies, Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment		3,750,000
Revolving Credit Facility \| Sabrosura Foods, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	3,924,869	5,269,003
Revolving Credit Facility \| SCP Baked Goods Holdings LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	89,286
Revolving Credit Facility \| Scp Mechanical Services Buyer, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,442,308
Revolving Credit Facility \| SCP WQS Buyer, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	4,258,004	2,769,301
Revolving Credit Facility \| SHF Holdings, Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment	2,347,826
Revolving Credit Facility \| Solid Ground Solutions Acquisitions Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment	595,238	595,238
Revolving Credit Facility \| Soteria Flexibles Corporation [Member]
Other Commitments [Line Items]
Unfunded Commitment	4,984,375	5,907,407
Revolving Credit Facility \| Tex-Tech Industries Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment	90,476
Revolving Credit Facility \| Tgnl Purchaser LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	165,746
Revolving Credit Facility \| The Smilist DSO, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,148,547	1,148,547
Revolving Credit Facility \| Tiger Healthcare Buyer, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,125,000	2,250,000
Revolving Credit Facility \| Tightco Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment	384,615
Revolving Credit Facility \| Together Women's Health LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,648,352
Revolving Credit Facility \| Trutemp Acquisition LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,446,281
Revolving Credit Facility \| USW Buyer, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,970,000	1,970,000
Revolving Credit Facility \| VIP Medical US Buyer, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	7,500,000	2,000,000
Revolving Credit Facility \| Warshaw Opco LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	169,477
Revolving Credit Facility \| WCI-BXC Purchaser, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	5,988,807	5,935,897
Revolving Credit Facility \| Woven Health Collective, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,475,961
Delayed Draw Term Loan \| Ab Centers Acquisition Corporation [Member]
Other Commitments [Line Items]
Unfunded Commitment	2,353,804	3,428,671
Delayed Draw Term Loan \| ACP Avenu Buyer, LLC
Other Commitments [Line Items]
Unfunded Commitment		2,784,571
Delayed Draw Term Loan \| ACP Avenu Midco LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	394,945
Delayed Draw Term Loan \| Bebright Mso, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	826,446	444,487
Delayed Draw Term Loan \| Behavioral Framework LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	292,560
Delayed Draw Term Loan \| Benefit Plan Administrators of Eau Claire, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	4,032,258	4,032,258
Delayed Draw Term Loan \| BPCP Craftsman Buyer, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	470,588
Delayed Draw Term Loan \| C2dx, Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment	3,390	338,983
Delayed Draw Term Loan \| CCI Prime, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment		85,890
Delayed Draw Term Loan \| Cub Financing Intermediate, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment		2,361,111
Delayed Draw Term Loan \| Currier Plastics Acquisition, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	4,699,248
Delayed Draw Term Loan \| Cytracom LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	352,022	1,011,236
Delayed Draw Term Loan \| Digital Experience Services, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	687,500
Delayed Draw Term Loan \| DPT Management, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	416,667	416,667
Delayed Draw Term Loan \| Dragonfly Pond Works [Member]
Other Commitments [Line Items]
Unfunded Commitment	297,550	3,500,583
Delayed Draw Term Loan \| Dynamic Connections, Ltd [Member]
Other Commitments [Line Items]
Unfunded Commitment	346,420	346,420
Delayed Draw Term Loan \| Ecir Intermediate II LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	4,121,688
Delayed Draw Term Loan \| Erosion Intermediate Holdings LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	937,500	3,214,286
Delayed Draw Term Loan \| EverSmith Brands Intermediate Holding Company [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,878,123	367,647
Delayed Draw Term Loan \| Eversmith Brands Intermediate Holding Company One [Member]
Other Commitments [Line Items]
Unfunded Commitment	44,118
Delayed Draw Term Loan \| Firmapak Intermediary LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	44,444
Delayed Draw Term Loan \| Harmony Hit US Holdings Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment	3,597,789	3,597,789
Delayed Draw Term Loan \| Identiti Resources LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment		5,098,494
Delayed Draw Term Loan \| Infusion Services Management LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment		865,242
Delayed Draw Term Loan \| Knight AcquireCo, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,869,655
Delayed Draw Term Loan \| Lifecare Intermediate II, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	2,000,000
Delayed Draw Term Loan \| Luminii LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	2,000,000
Delayed Draw Term Loan \| Luminii LLC One [Member]
Other Commitments [Line Items]
Unfunded Commitment	824,176
Delayed Draw Term Loan \| Midas Foods International LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	763,359	65,574
Delayed Draw Term Loan \| Mobotrex, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	2,806,072
Delayed Draw Term Loan \| Mustang Prospects Purchaser LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	444,537	1,727,298
Delayed Draw Term Loan \| NAM Acquisition Co LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	591,901	963,855
Delayed Draw Term Loan \| National Power, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	418,404	747,150
Delayed Draw Term Loan \| NE Ortho Management Services, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	6,462,036	2,423,263
Delayed Draw Term Loan \| NE Ortho Management Services, LLC One [Member]
Other Commitments [Line Items]
Unfunded Commitment		6,462,036
Delayed Draw Term Loan \| Nutrail Acquisitionco, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	102,929
Delayed Draw Term Loan \| Penn Quarter Partners, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	2,805,683
Delayed Draw Term Loan \| Perimeter Solutions Group, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,787,973	2,250,596
Delayed Draw Term Loan \| PLA Buyer, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment		1,052,632
Delayed Draw Term Loan \| Pillr Health Intermediate II, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	6,349,295
Delayed Draw Term Loan \| Premier Dental Products Company LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	1,250,000
Delayed Draw Term Loan \| Perimeter Solutions Group, LLC One [Member]
Other Commitments [Line Items]
Unfunded Commitment	718,185
Delayed Draw Term Loan \| Prism Parent Co Inc. [Member]
Other Commitments [Line Items]
Unfunded Commitment	2,214,815	2,214,815
Delayed Draw Term Loan \| Quick Roofing Acquisition, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	484,848	505,051
Delayed Draw Term Loan \| Roofing Services Solutions LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment		3,916,667
Delayed Draw Term Loan \| Routeware, Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment	3,852,273	4,431,818
Delayed Draw Term Loan \| Sabrosura Foods, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	4,311,535	4,311,535
Delayed Draw Term Loan \| SCP Baked Goods Holdings LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	267,857
Delayed Draw Term Loan \| Scp Mechanical Services Buyer, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	6,730,769
Delayed Draw Term Loan \| SCP WQS Buyer, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment		3,761,897
Delayed Draw Term Loan \| Solid Ground Solutions Acquisitions Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment	5,806,452	2,380,952
Delayed Draw Term Loan \| Soteria Flexibles Corporation [Member]
Other Commitments [Line Items]
Unfunded Commitment		7,287,090
Delayed Draw Term Loan \| Tex-Tech Industries Inc [Member]
Other Commitments [Line Items]
Unfunded Commitment	63,492
Delayed Draw Term Loan \| The Smilist DSO, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	165,048	643,752
Delayed Draw Term Loan \| The Smilist DSO, LLC One [Member]
Other Commitments [Line Items]
Unfunded Commitment		1,000,000
Delayed Draw Term Loan \| Tiger Healthcare Buyer, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	50,417	50,417
Delayed Draw Term Loan \| Together Women's Health LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	7,692,308
Delayed Draw Term Loan \| Trutemp Acquisition LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	7,231,405
Delayed Draw Term Loan \| VIP Medical US Buyer, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment		$ 1,900,000
Delayed Draw Term Loan \| Woven Health Collective, LLC [Member]
Other Commitments [Line Items]
Unfunded Commitment	$ 4,341,061

Fidelity Private Credit Co LLC 10-K