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, 2022
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,
2022 2021 2020
(dollars in thousands)
Interest, fee and dividend income:
Interest income $ 284,746  $ 193,667  $ 173,676 
Dividend income 76,375  81,153  36,373 
Fee income 15,739  14,227  12,565 
Total interest, fee and dividend income $ 376,860  $ 289,047  $ 222,614