Main Street Capital Corporation Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Cover
- Cover
- Audit Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)
Notes Tables
Notes Details

SUBSEQUENT EVENTS (Details)

v3.24.0.1

SUBSEQUENT EVENTS (Details) - USD ($)	1 Months Ended		3 Months Ended		201 Months Ended
SUBSEQUENT EVENTS (Details) - USD ($)	Feb. 23, 2024	Jan. 31, 2024	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2024
Forecast
Subsequent Event [Line Items]
Common stock, monthly dividend, per share, declared (in dollars per share)			$ 0.72
Increase common stock, monthly dividend, cash paid (as a percent)			6.70%
Common stock, cumulative monthly dividend and supplemental dividend, per share, paid (in dollars per share)					$ 40.555
Subsequent Event
Subsequent Event [Line Items]
Common stock, supplemental cash dividend, per share, declared (in dollars per share)	$ 0.30
Common stock, monthly dividend, per share, declared (in dollars per share)				$ 0.72
Subsequent Event \| Dividends, January to March 2024
Subsequent Event [Line Items]
Common stock, monthly dividend, per share, declared (in dollars per share)	0.24
Subsequent Event \| Dividends, April To June 2024
Subsequent Event [Line Items]
Common stock, monthly dividend, per share, declared (in dollars per share)	$ 0.24
Subsequent Event \| Unsecured Notes \| March 2029 Notes
Subsequent Event [Line Items]
Debt instrument, par value		$ 350,000,000
Debt instrument, interest rate, stated (as a percent)		6.95%
Debt instrument, issuance price (as a percent)		99.865%
Proceeds from debt		$ 346,300,000

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