v3.26.1
DEBT - Schedule of MSCC Funding Statement of Operations (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
INVESTMENT INCOME:    
Total investment income $ 140,106 $ 137,046
EXPENSES:    
Interest (34,043) (31,168)
General and administrative (5,396) (5,086)
Total expenses (52,263) (47,236)
NET INVESTMENT INCOME BEFORE TAXES 87,843 89,810
NET UNREALIZED APPRECIATION (DEPRECIATION):    
Total net unrealized appreciation (depreciation) (50,599) 63,190
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS 48,981 116,082
MSCC Funding I, LLC    
INVESTMENT INCOME:    
Total investment income 11,368 10,598
EXPENSES:    
Interest (3,423) (3,816)
Management fee to MSCC (500) (290)
General and administrative (18) (69)
Total expenses (3,941) (4,175)
NET INVESTMENT INCOME BEFORE TAXES 7,427 6,423
NET UNREALIZED APPRECIATION (DEPRECIATION):    
Total net unrealized appreciation (depreciation) (11,275) 63
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS (3,848) 6,486
Control investments    
INVESTMENT INCOME:    
Total investment income 61,664 56,242
NET UNREALIZED APPRECIATION (DEPRECIATION):    
Total net unrealized appreciation (depreciation) (47,208) 401
Control investments | MSCC Funding I, LLC    
NET UNREALIZED APPRECIATION (DEPRECIATION):    
Total net unrealized appreciation (depreciation) (9,187) 0
Non‑Control/Non‑Affiliate investments    
INVESTMENT INCOME:    
Total investment income 52,261 57,070
NET UNREALIZED APPRECIATION (DEPRECIATION):    
Total net unrealized appreciation (depreciation) (8,572) 23,786
Non‑Control/Non‑Affiliate investments | MSCC Funding I, LLC    
INVESTMENT INCOME:    
Total investment income 11,368 10,598
NET UNREALIZED APPRECIATION (DEPRECIATION):    
Total net unrealized appreciation (depreciation) $ (2,088) $ 63