v3.25.4
Cover - USD ($)
 12 Months Ended
Dec. 31, 2025
Mar. 05, 2026
Jun. 30, 2025
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Current Fiscal Year End Date --12-31    
Document Period End Date Dec. 31, 2025    
Document Transition Report false    
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, Address Line One 155 North Wacker Drive, 35th Floor    
Entity Address, City or Town Chicago    
Entity Address, State or Province IL    
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    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
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    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 0
Entity Common Stock, Shares Outstanding   280,807,222  
Documents Incorporated by Reference
Documents Incorporated by Reference
Portions of the registrant’s definitive proxy statement pursuant to Regulation 14A relating to the registrant’s 2026 Annual Meeting of Stockholders, to be filed with the Securities and Exchange Commission within 120 days following the end of the Company’s fiscal year covered by this Annual Report on Form 10-K are incorporated by reference in Part III of this Annual Report on Form 10-K as indicated herein.
    
Amendment Flag false    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Entity Central Index Key 0001742313