Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2023
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,
2023 2022 2021
(dollars in thousands)
Interest, fee and dividend income:
Interest income $ 390,737  $ 284,746  $ 193,667 
Dividend income 94,796  76,375  81,153 
Fee income 14,852  15,739  14,227 
Total interest, fee and dividend income $ 500,385  $ 376,860  $ 289,047