v3.25.4
Investments - SLF, Net Increase (Decrease) in Members' Capital (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Investment income:      
Interest income $ 26,217 $ 44,283 $ 49,779
Total investment income 37,875 60,527 64,297
Expenses:      
Interest and other debt financing expenses 15,867 21,917 22,847
Professional fees and other expenses 1,022 902 719
Net investment income 11,406 24,532 23,249
Net gain (loss):      
Net realized gain (loss) (16,667) 1,431 (37,148)
Net change in unrealized gain (loss) 139 (16,259) 14,270
Net gain (loss) (16,528) (14,828) (22,878)
Net increase (decrease) in net assets resulting from operations (5,122) 9,704 371
MRCC Senior Loan Fund I, LLC      
Investment income:      
Interest income 5,646 13,012 18,362
Total investment income 5,646 13,012 18,362
Expenses:      
Interest and other debt financing expenses 976 5,173 8,847
Professional fees and other expenses 544 640 757
Total operating expenses 1,520 5,813 9,604
Net investment income 4,126 7,199 8,758
Net gain (loss):      
Net realized gain (loss) (23,361) 82 (5,119)
Net change in unrealized gain (loss) 14,831 (862) (1,216)
Net gain (loss) (8,530) (780) (6,335)
Net increase (decrease) in net assets resulting from operations $ (4,404) $ 6,419 $ 2,423