Fees, Expenses, Agreements and Related Party Transactions (Details)		12 Months Ended
	Nov. 14, 2022 component	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Related Party Transaction [Line Items]
Management fees		$ 3,011,000	$ 2,777,000	$ 1,698,000
Management fees payable		768,000	751,000
Income incentive fee		5,010,000	5,618,000	3,064,000
Income incentive fees waived		609,000	395,000	1,032,000
Income incentive fee payable		4,400,000	5,221,000
Expenses related to the administrator		500,000	400,000	0.0
Expenses related to the administrator that were payable		200,000	300,000
Expenses related to the sub-administrator		600,000	400,000	400,000
Expenses related to the sub-administrator that were payable		400,000	300,000
Affiliated Entity \| Investment Advisory Agreement
Related Party Transaction [Line Items]
Agreement term	2 years
Agreement termination written notice period	60 days
Number of fee components \| component	2
Annual management fee rate	0.65%
Management fees		3,000,000.0	2,800,000	1,700,000
Waived fees		0	0	0
Income incentive fee		5,000,000.0	5,600,000	3,100,000
Income incentive fees waived		600,000	400,000	1,000,000.0
Income incentive fee payable		4,400,000	5,200,000
Affiliated Entity \| Pre-Incentive Fee Net Investment Income Returns
Related Party Transaction [Line Items]
Management fees payable		800,000	800,000
Incentive fee rates	12.50%
Affiliated Entity \| Annualized Hurdle Rate
Related Party Transaction [Line Items]
Incentive fee rates	5.75%
Affiliated Entity \| Pre-Incentive Fee Net Investment Income Returns Below Catch-up Threshold
Related Party Transaction [Line Items]
Incentive fee rates	100.00%
Affiliated Entity \| Annualized Catch-up Threshold
Related Party Transaction [Line Items]
Incentive fee rates	6.57143%
Affiliated Entity \| Pre-Incentive Fee Net Investment Income Returns Exceeds Catch-up Threshold
Related Party Transaction [Line Items]
Incentive fee rates	12.50%
Affiliated Entity \| Realized Capital Gains
Related Party Transaction [Line Items]
Incentive fee rates	12.50%
Capital gain based incentive fees		0	0
Capital gains incentive fee payable		$ 0	$ 0	$ 1,200,000

OHA Senior Private Lending Fund (U) LLC 10-K