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 $ 43.77 [1] $ 50.49        
Income from Investment Operations:            
Net investment income 1.86 5.12        
Net realized and unrealized loss (0.96) (8.34)        
Total income (loss) from investment operations 0.9 (3.22)        
Less Distributions:            
Net Asset Value Per Unit (accrual base), End of Period $ 44.67 [1] $ 47.27        
Unitholder Total Return 1.74% (6.16%)        
Unitholder IRR before incentive fees 7.57% 7.80%        
Unitholder IRR after all fees and expenses 7.57% 7.80%        
Ratios and Supplemental Data:            
Member's Capital, end of period $ 448,193 $ 483,738 $ 446,855 $ 435,764 $ 512,804 $ 528,008
Units issued and committed at end of period 13,734,010 13,734,010        
Ratios based on average net assets of Members’ Capital:            
Ratio of total expenses before incentive fees to average net assets 7.41% 7.69%        
Ratio of financing cost to average net assets 1.47% 1.90%        
Ratio of net investment income to average net assets 11.60% 27.29%        
Ratio of incentive fees to average net assets 0.00% (13.85%)        
Credit facility payable $ 184,600 $ 213,500        
Asset coverage ratio 3.43% 3.27%        
Portfolio turnover rate 1.67% 6.42%        
[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.