SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

9 Months Ended

Sep. 30, 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:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2022		2021		2022		2021
	(dollars in thousands)
Interest, fee and dividend income:
Interest income	$	75,023	$	50,468	$	198,446	$	139,882
Dividend income	19,424		23,012		53,959		59,328
Fee income	3,940		3,299		10,576		7,671
Total interest, fee and dividend income	$	98,387	$	76,779	$	262,981	$	206,881