Commitments and Contingencies - Schedule of Unfunded Commitments to Investments (Details) $ in Thousands	Sep. 30, 2025 USD ($)
Loss Contingencies [Line Items]
Unfunded Commitment	$ 66,756
Investment, Identifier [Axis]: Amy's Kitchen, LLC
Loss Contingencies [Line Items]
Unfunded Commitment	1,284
Investment, Identifier [Axis]: BB PEP Bidco, LLC
Loss Contingencies [Line Items]
Unfunded Commitment	857
Investment, Identifier [Axis]: Cendyn Group, LLC
Loss Contingencies [Line Items]
Unfunded Commitment	1,332
Investment, Identifier [Axis]: FR Refuel, LLC
Loss Contingencies [Line Items]
Unfunded Commitment	1,555
Investment, Identifier [Axis]: G S AcquisitionCo, Inc
Loss Contingencies [Line Items]
Unfunded Commitment	7,297
Investment, Identifier [Axis]: GC Ferry Acquisition 1 Inc
Loss Contingencies [Line Items]
Unfunded Commitment	3,646
Investment, Identifier [Axis]: Jupiter Refuel Canada Buyer, Inc
Loss Contingencies [Line Items]
Unfunded Commitment	10,750
Investment, Identifier [Axis]: Jupiter Refuel US Buyer, Inc
Loss Contingencies [Line Items]
Unfunded Commitment	563
Investment, Identifier [Axis]: Lead Venture Inc
Loss Contingencies [Line Items]
Unfunded Commitment	2,396
Investment, Identifier [Axis]: MRI Software LLC
Loss Contingencies [Line Items]
Unfunded Commitment	372
Investment, Identifier [Axis]: Olo Parent, Inc
Loss Contingencies [Line Items]
Unfunded Commitment	2,734
Investment, Identifier [Axis]: Riser Fitness, LLC
Loss Contingencies [Line Items]
Unfunded Commitment	5,354
Investment, Identifier [Axis]: Ruby Bidco Holdings Limited
Loss Contingencies [Line Items]
Unfunded Commitment	7,562
Investment, Identifier [Axis]: Shrieve Chemical Company, LLC
Loss Contingencies [Line Items]
Unfunded Commitment	347
Investment, Identifier [Axis]: Solidcore Topco, LLC
Loss Contingencies [Line Items]
Unfunded Commitment	7,472
Investment, Identifier [Axis]: Steels Solutions, Inc
Loss Contingencies [Line Items]
Unfunded Commitment	3,512
Investment, Identifier [Axis]: Superior Intermediate, LLC
Loss Contingencies [Line Items]
Unfunded Commitment	5,081
Investment, Identifier [Axis]: Vibrant Purchaser LLC AND Vibrant Canada Acquisitionco Inc
Loss Contingencies [Line Items]
Unfunded Commitment	$ 4,640

Fortress Private Lending Fund 10-Q