Annual report [Section 13 and 15(d), not S-K Item 405]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2024
Accounting Policies [Abstract]  
Schedule of Investment Income
A presentation of total investment income Main Street received from its Investment Portfolio in each of the periods presented is as follows:
Year Ended December 31,
2024 2023 2022
(dollars in thousands)
Interest, fee and dividend income:
Interest income $ 420,651  $ 390,737  $ 284,746 
Dividend income 97,231  94,796  76,375 
Fee income 23,144  14,852  15,739 
Total investment income $ 541,026  $ 500,385  $ 376,860