Quarterly report [Sections 13 or 15(d)]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
9 Months Ended
Sep. 30, 2025
Accounting Policies [Abstract]  
Schedule of Investment Income
A presentation of total investment income MSC Income earned from its Investment Portfolio in each of the periods presented is as follows:
Three Months Ended
September 30,
Nine Months Ended
September 30,
2025 2024 2025 2024
(dollars in thousands)
Interest, dividend and fee income:
Interest income $ 30,117  $ 30,236  $ 86,890  $ 88,154 
Dividend income 3,652  2,485  13,750  8,964 
Fee income 1,598  756  3,597  4,255 
Total investment income $ 35,367  $ 33,477  $ 104,237  $ 101,373