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

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

v3.25.4
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]  
Schedule of Investment Income
A presentation of total investment income Main Street earned from its Investment Portfolio in each of the periods presented is as follows:
Year Ended December 31,
2025 2024 2023
(in thousands)
Interest, dividend and fee income:
Interest income $ 404,919  $ 420,651  $ 390,737 
Dividend income 141,032  97,231  94,796 
Fee income 20,440  23,144  14,852 
Total investment income $ 566,391  $ 541,026  $ 500,385