v3.26.1
MEMBERS' CAPITAL - Distributions Declared and Payable (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit)     $ 0.9245 $ 0.9581
Total Amount $ 7,273 $ 5,882 $ 14,638 $ 10,946
O 2025 M1 Aggregate Dividends [Member]        
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit)       $ 0.143
Total Amount       $ 1,398
O 2025 M2 Aggregate Dividends [Member]        
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit)       $ 0.1429
Total Amount       $ 1,492
O 2025 M3 Aggregate Dividends [Member]        
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit)       $ 0.143
Total Amount       $ 1,605
S 2025 M1 Aggregate Dividends [Member]        
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit) [1]       $ 0.0507
Total Amount [1]       $ 569
O 2025 M4 Aggregate Dividends        
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit)       $ 0.1429
Total Amount       $ 1,700
O 2025 M5 Aggregate Dividends        
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit)       $ 0.1428
Total Amount       $ 1,757
O 2025 M6 Aggregate Dividends        
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit)       $ 0.1423
Total Amount       $ 1,790
S 2025 M6 Aggregate Dividends [Member]        
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit) [1]       $ 0.0505
Total Amount [1]       $ 635
O 2026 M1 Aggregate Dividends [Member]        
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit)     $ 0.1425  
Total Amount     $ 2,164  
O 2026 M2 Aggregate Dividends [Member]        
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit)     $ 0.1419  
Total Amount     $ 2,262  
O 2026 M3 Aggregate Dividends [Member]        
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit)     $ 0.1433  
Total Amount     $ 2,323  
S 2026 M3 Aggregate Dividends [Member]        
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit) [1]     $ 0.038  
Total Amount [1]     $ 616  
O 2026 M4 Aggregate Dividends [Member]        
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit)     $ 0.1417  
Total Amount     $ 2,229  
O 2026 M5 Aggregate Dividends [Member]        
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit)     $ 0.1406  
Total Amount     $ 2,231  
O 2026 M6 Aggregate Dividends [Member]        
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit)     $ 0.1393  
Total Amount     $ 2,220  
S 2026 M6 Aggregate Dividends [Member]        
Dividends Payable [Line Items]        
Per Unit Amount (in dollars per unit) [1]     $ 0.0372  
Total Amount [1]     $ 593  
[1] Represents a special distribution.