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

SHARE-BASED COMPENSATION - Narrative (Details)

v3.24.0.1

SHARE-BASED COMPENSATION - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share‑based compensation	$ 16,520	$ 13,629	$ 10,887
Share-based payment arrangement, nonvested award, vested fair value	15,600	10,500	10,900
Restricted Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share‑based compensation	16,500	$ 13,600	$ 10,900
Share-based payment arrangement, nonvested award, excluding option, cost not yet recognized, amount	$ 26,300
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition (in years)	2 years 3 months 18 days
Restricted Stock \| Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period (in years)	3 years
Restricted Stock \| Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period (in years)	5 years
Restricted Stock \| Main Street Capital Corporation 2022 Equity and Incentive Plan \| Minimum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period (in years)	3 years
Restricted Stock \| Main Street Capital Corporation 2022 Equity and Incentive Plan \| Maximum
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period (in years)	5 years

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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