Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2023	May 11, 2023
Document and Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Mar. 31, 2023
Entity File Number	814-01301
Entity Registrant Name	MONROE CAPITAL INCOME PLUS CORPORATION
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	83-0711022
Entity Address State Or Province	IL
Entity Address, Address Line One	311 South Wacker Drive, Suite 6400
Entity Address, City or Town	Chicago
Entity Address, Postal Zip Code	60606
City Area Code	312
Local Phone Number	258-8300
Title of 12(b) Security	None
No Trading Symbol Flag	true
Security Exchange Name	NONE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		83,765,462
Entity Central Index Key	0001742313
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Amendment Flag	false