v3.26.1
Financial Highlights - Schedule of Net Asset Value Per Unit and Reflects all Units Issued and Outstanding (Details) - USD ($)
$ / shares in Units, $ in Thousands
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Investment Company [Abstract]            
Net Asset Value Per Unit (accrual base), Beginning of Period [2] $ 23.96 [1] $ 25.22        
Income from Investment Operations:            
Net investment income [2] 0.13 0.17        
Net realized and unrealized loss [2] (2.08) (0.16)        
Total loss from investment operations [2] (1.95) 0.01        
Less Distributions:            
Return of capital (0.68) 0        
Total distributions (0.68) 0        
Net Asset Value Per Unit (accrual base), End of Period [2] $ 21.33 [1] $ 25.23        
Common Unitholder Total Return [2],[3],[4] (11.13%) 0.03%        
Common Unitholder IRR [2],[5] 6.17% 6.91%        
Ratios and Supplemental Data:            
Members' Capital, end of period $ 185,519 [2] $ 255,870 [2] $ 218,053 $ 232,983 $ 264,567 $ 255,783
Units outstanding, end of period 18,034,649 [2] 18,034,649 [2]   18,034,649   18,034,649
Ratios based on average net assets of Members’ Capital:            
Ratio of total expenses to average net assets [2],[6] 4.41% 5.89%        
Expenses waived by Investment Adviser [2],[6] (1.10%) (1.27%)        
Ratio of net expenses to average net assets [2],[6] 3.31% 4.62%        
Ratio of financing cost to average net assets [2],[3] 0.53% 1.20%        
Ratio of net investment income before expenses reimbursed to average net assets [2],[6] 1.10% 1.06%        
Ratio of net investment income to average net assets [2],[6] 2.20% 2.33%        
Credit facility payable $ 0 $ 73,250 [2] $ 0 [2] $ 51,550    
Asset coverage ratio [2]   4.49%        
Portfolio turnover rate [2],[3] 0.75% 2.46%        
[1] Net Asset Value Per Unit (accrual base) equates to the aggregate of the Total Members' Capital and Common Unitholders' undrawn commitment divided by total Common Units outstanding.
[2] Per unit data was calculated using the number of Common Units issued and outstanding as of June 30, 2026 and 2025.
[3] Not annualized.
[4] The Total Return for the six months ended June 30, 2026 and 2025 was calculated by taking total income from investment operations for the period divided by the weighted average capital contributions from the Members during the period. The return does not reflect sales load and is net of management fees and expenses.
[5] The Internal Rate of Return (“IRR”) since inception for the Common Unitholders, after management fees, financing costs and operating expenses, is 6.17% through June 30, 2026. The IRR is computed based on cash flow due dates contained in notices to Members (contributions from and distributions to the Common Unitholders) and the net assets (residual value) of the Members’ Capital account at period end. The IRR is calculated based on the fair value of investments using principles and methods in accordance with GAAP and does not necessarily represent the amounts that may be realized from sales or other dispositions. Accordingly, the return may vary significantly upon realization.
[6] Annualized.