Transactions with Affiliated Companies - Income Information (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Nastel Technologies, LLC [ Member]
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments
Interest income	$ 101
Second Avenue S F R Holdings I I L L C [ Member]
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments
Interest income	$ 138	$ 46
S F R Holdco, L L C [ Member]
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments	Non-controlled affiliate company investments
Interest income	$ 181	$ 118
Sheer Trans Solutions, LLC [ Member]
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments
Interest income	$ 163
Investment, Identifier [Axis]: 300 N. Michigan Mezz, LLC (Delayed Draw), Senior Secured Loans, Due 7/15/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MichiganMezzLlcMember		mcip:MichiganMezzLlcMember
Investment, Identifier [Axis]: 95 Percent Buyer, LLC (Revolver), Senior Secured Loans, Due 11/24/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NinetyFivePercentBuyerLlcMember		mcip:NinetyFivePercentBuyerLlcMember
Investment, Identifier [Axis]: 95 Percent Buyer, LLC, Equity Securites,Class A units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NinetyFivePercentBuyerLlcMember		mcip:NinetyFivePercentBuyerLlcMember
Investment, Identifier [Axis]: 95 Percent Buyer, LLC, Senior Secured Loans, Due 11/24/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NinetyFivePercentBuyerLlcMember		mcip:NinetyFivePercentBuyerLlcMember
Investment, Identifier [Axis]: API Holdings III Corp, Senior Secured Loans, Due 5/8/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ApiHoldingsIiiCorpMember		mcip:ApiHoldingsIiiCorpMember
Investment, Identifier [Axis]: ASG II, LLC, , Unitranche Loans, Due 5/25/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ASGIILLCMember		mcip:ASGIILLCMember
Investment, Identifier [Axis]: ASG II, LLC, Delayed Draw, Unitranche Loans, Due 5/25/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ASGIILLCMember		mcip:ASGIILLCMember
Investment, Identifier [Axis]: Acquia Inc, Senior Secured Loans, Due 10/31/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AcquiaIncMember		mcip:AcquiaIncMember
Investment, Identifier [Axis]: Acquia Inc. (Revolver), Senior Secured Loans, Due 10/31/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AcquiaIncMember		mcip:AcquiaIncMember
Investment, Identifier [Axis]: Adept AG Holdings, LLC (Revolver), Senior Secured Loans, One, Due 8/11/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:AdeptAgHoldingsLlcMember
Investment, Identifier [Axis]: Adept AG Holdings, LLC (Revolver), Senior Secured Loans, Two, due 8/11/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AdeptAgHoldingsLlcMember		mcip:AdeptAgHoldingsLlcMember
Investment, Identifier [Axis]: Adept AG Holdings, LLC (Revolver), Senior Secured Loans, due 8/11/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AdeptAgHoldingsLlcMember
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Equity Securities, Preferred units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AdeptAgHoldingsLlcMember		mcip:AdeptAgHoldingsLlcMember
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Senior Secured Loans, One, Due 8/11/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:AdeptAgHoldingsLlcMember
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Senior Secured Loans, Three, due 8/11/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AdeptAgHoldingsLlcMember		mcip:AdeptAgHoldingsLlcMember
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Senior Secured Loans, Two, due 8/11/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AdeptAgHoldingsLlcMember		mcip:AdeptAgHoldingsLlcMember
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Senior Secured Loans, due 8/11/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AdeptAgHoldingsLlcMember
Investment, Identifier [Axis]: Amelia Holding II, LLC (Delayed Draw), Senior Secured Loans, Due 12/21/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AmeliaHoldingIiLlcMember		mcip:AmeliaHoldingIiLlcDelayedDrawMember
Investment, Identifier [Axis]: Amelia Holding II, LLC (Revolver), Senior Secured Loans, Due 12/21/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AmeliaHoldingIiLlcMember		mcip:AmeliaHoldingIiLlcRevolverMember
Investment, Identifier [Axis]: Amelia Holding II, LLC, Equity Securities, Warrants
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AmeliaHoldingIiLlcMember		mcip:AmeliaHoldingIiLlcMember
Investment, Identifier [Axis]: Amelia Holding II, LLC, Senior Secured Loans, Due 12/21/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AmeliaHoldingIiLlcMember		mcip:AmeliaHoldingIiLlcMember
Investment, Identifier [Axis]: American Broadband and Telecommunications Company LLC, Delayed Draw, Senior Loans, Due 6/10/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AmericanBroadbandAndTelecommunicationsCompanyLlcMember		mcip:AmericanBroadbandAndTelecommunicationsCompanyLlcMember
Investment, Identifier [Axis]: American Broadband and Telecommunications Company LLC, Equity Securities
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AmericanBroadbandandTelecommunicationsCompanyLLCMember		mcip:AmericanBroadbandandTelecommunicationsCompanyLLCMember
Investment, Identifier [Axis]: American Broadband and Telecommunications Company LLC, Revolver, Senior Loans, Due 6/10/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AmericanBroadbandAndTelecommunicationsCompanyLlcMember		mcip:AmericanBroadbandAndTelecommunicationsCompanyLlcMember
Investment, Identifier [Axis]: American Virtual Cloud Technologies, Inc., Equity Securites, Warrants
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:AmericanVirtualCloudTechnologiesIncMember
Investment, Identifier [Axis]: Aperture Companies, LLC (Revolver), Senior Secured Loans, Due 12/31/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ApertureCompaniesLlcMember		mcip:ApertureCompaniesLlcMember
Investment, Identifier [Axis]: Aperture Companies, LLC, Senior Secured Loans, One, Due 12/31/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ApertureCompaniesLlcMember		mcip:ApertureCompaniesLlcMember
Investment, Identifier [Axis]: Aperture Companies, LLC, Senior Secured Loans, Two, Due 12/31/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ApertureCompaniesLlcMember		mcip:ApertureCompaniesLlcMember
Investment, Identifier [Axis]: Appriss Health, LLC (Revolver), Senior Secured Loans, Due 5/6/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ApprissHealthLlcMember		mcip:ApprissHealthLlcMember
Investment, Identifier [Axis]: Appriss Health, LLC, Senior Secured Loans, Due 5/6/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ApprissHealthLlcMember		mcip:ApprissHealthLlcMember
Investment, Identifier [Axis]: Aras Corporation (Revolver), Senior Secured Loans, Due 4/13/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ArasCorporationMember		mcip:ArasCorporationMember
Investment, Identifier [Axis]: Aras Corporation, Senior Secured Loans, Due 4/13/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ArasCorporationMember		mcip:ArasCorporationMember
Investment, Identifier [Axis]: Arcstor Midco, LLC, Senior Secured Loans, Due 3/16/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ArcstorMidcoLLCMember		mcip:ArcstorMidcoLLCMember
Investment, Identifier [Axis]: Argano, LLC (Revolver), Senior Secured Loans, Due 6/10/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ArganoLlcMember		mcip:ArganoLlcMember
Investment, Identifier [Axis]: Argano, LLC, Equity Securites, Common units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ArganoLlcMember		mcip:ArganoLlcMember
Investment, Identifier [Axis]: Argano, LLC, Senior Secured Loans, Four, Due 6/10/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ArganoLlcMember		mcip:ArganoLlcMember
Investment, Identifier [Axis]: Argano, LLC, Senior Secured Loans, One, Due 6/10/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ArganoLlcMember		mcip:ArganoLlcMember
Investment, Identifier [Axis]: Argano, LLC, Senior Secured Loans, Three, Due 6/10/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ArganoLlcMember		mcip:ArganoLlcMember
Investment, Identifier [Axis]: Argano, LLC, Senior Secured Loans, Two, Due 6/10/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ArganoLlcMember		mcip:ArganoLlcMember
Investment, Identifier [Axis]: Arizona Natural Resources, LLC (Revolver), Senior Secured Loans, Due 5/18/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:ArizonaNaturalResourcesLlcMember
Investment, Identifier [Axis]: Arizona Natural Resources, LLC (Revolver), Senior Secured Notes, due 5/18/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ArizonaNaturalResourcesLlcMember
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Loans, Four, Due 5/18/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:ArizonaNaturalResourcesLlcMember
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Loans, One, Due 5/18/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:ArizonaNaturalResourcesLlcMember
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Loans, Three, Due 5/18/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:ArizonaNaturalResourcesLlcMember
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Loans, Two, Due 5/18/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:ArizonaNaturalResourcesLlcMember
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Notes, Four, due 5/18/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ArizonaNaturalResourcesLlcMember
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Notes, Three, due 5/18/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ArizonaNaturalResourcesLlcMember
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Notes, Two, due 5/18/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ArizonaNaturalResourcesLlcMember
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Notes, due 5/18/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ArizonaNaturalResourcesLlcMember
Investment, Identifier [Axis]: Ascent Midco, LLC (Revolver), Senior Secured Loans, Due 2/5/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AscentMidcoLLCMember		mcip:AscentMidcoLLCMember
Investment, Identifier [Axis]: Ascent Midco, LLC, Equity Securities, Class A units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AscentMidcoLLCMember		mcip:AscentMidcoLLCMember
Investment, Identifier [Axis]: Ascent Midco, LLC, Senior Secured Loans, Due 2/5/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AscentMidcoLLCMember		mcip:AscentMidcoLLCMember
Investment, Identifier [Axis]: Avalara, Inc, Senior Secured Loans, Due 10/19/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AvalaraInc.Member		mcip:AvalaraIncMember
Investment, Identifier [Axis]: Avalara, Inc. (Revolver), Senior Secured Loans, due 10/19/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AvalaraInc.Member		mcip:AvalaraIncMember
Investment, Identifier [Axis]: Avison Young (USA) Inc, Senior Secured Loans, Due 1/30/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AvisonYoungUSAIncMember		mcip:AvisonYoungUSAIncMember
Investment, Identifier [Axis]: Avison Young (USA) Inc, Senior Secured Loans, Due 9/1/2022
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:AvisonYoungUSAIncMember		mcip:AvisonYoungUSAIncMember
Investment, Identifier [Axis]: B2B Industrial Products LLC, Senior Secured Loans, due 10/7/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:B2bIndustrialProductsLlcMember		mcip:B2bIndustrialProductsLlcMember
Investment, Identifier [Axis]: BTRS Holdings Inc (Delayed Draw), Senior Secured Loans, Due 12/15/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:BtrsHoldingsIncMember		mcip:BtrsHoldingsIncMember
Investment, Identifier [Axis]: BTRS Holdings Inc (Revolver), Senior Secured Loans, Due 12/15/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:BtrsHoldingsIncMember		mcip:BtrsHoldingsIncMember
Investment, Identifier [Axis]: BTRS Holdings Inc, Senior Secured Loans, Due 12/15/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:BtrsHoldingsIncMember		mcip:BtrsHoldingsIncMember
Investment, Identifier [Axis]: Bonterra LLC (Delayed Draw), Senior Secured Loans, Due 9/8/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:BonterraLlcMember		mcip:BonterraLLCfkaCybergrantsHoldingsMember
Investment, Identifier [Axis]: Bonterra LLC (Revolver), Senior Secured Loans, Due 9/8/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:BonterraLlcMember		mcip:BonterraLLCfkaCybergrantsHoldingsMember
Investment, Identifier [Axis]: Bonterra LLC, Senior Secured Loans, Due 9/8/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:BonterraLlcMember		mcip:BonterraLLCfkaCybergrantsHoldingsMember
Investment, Identifier [Axis]: Born To Run, LLC, Equity Securities, Class A units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:BornToRunLLCMember		mcip:BornToRunLLCMember
Investment, Identifier [Axis]: Born To Run, LLC, Senior Secured Loans, One, Due 4/1/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:BornToRunLLCMember		mcip:BornToRunLLCMember
Investment, Identifier [Axis]: Born To Run, LLC, Senior Secured Loans, Two, Due 4/1/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:BornToRunLLCMember		mcip:BornToRunLLCMember
Investment, Identifier [Axis]: Brickell Bay Acquisition Corp, Senior Secured Loans, Due 2/12/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:BrickellBayAcquisitionCorpMember		mcip:BrickellBayAcquisitionCorpMember
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation, Senior Secured Loans, Due 7/25/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:BurgessPointPurchaserCorporationMember		mcip:BurgessPointPurchaserCorporationMember
Investment, Identifier [Axis]: CE Intermediate, LLC, Senior Secured Loans, Due 7/1/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CeIntermediateLlcMember		mcip:CeIntermediateLlcMember
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC, Senior Secured Loans, One, due 12/17/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CgiAutomatedManufacturingLlcMember		mcip:CgiAutomatedManufacturingLlcMember
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC, Senior Secured Loans, Three, due 12/17/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CgiAutomatedManufacturingLlcMember		mcip:CgiAutomatedManufacturingLlcMember
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC, Senior Secured Loans, Two, due 12/17/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CgiAutomatedManufacturingLlcMember		mcip:CgiAutomatedManufacturingLlcMember
Investment, Identifier [Axis]: Calabrio, Inc., Revolver, Senior Loans, Two, Due 4/16/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CalabrioIncMember		mcip:CalabrioIncMember
Investment, Identifier [Axis]: Calabrio, Inc., Senior Loans, One, Due 4/16/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CalabrioIncMember		mcip:CalabrioIncMember
Investment, Identifier [Axis]: Calienger Holdings, L.L.C, Senior Secured Loans, Due 10/20/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CaliengerHoldingsL.l.cMember		mcip:CaliengerHoldingsL.l.cMember
Investment, Identifier [Axis]: Calienger Holdings, L.L.C. (Delayed Draw), Senior Secured Loans, Due 10/20/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CaliengerHoldingsL.l.cMember		mcip:CaliengerHoldingsL.l.cMember
Investment, Identifier [Axis]: Calienger Holdings, L.L.C. (Revolver), Senior Secured Loans, Due 10/20/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CaliengerHoldingsL.l.cMember		mcip:CaliengerHoldingsL.l.cMember
Investment, Identifier [Axis]: Calienger Holdings, L.L.C., Equity Securites, Class A units)
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CaliengerHoldingsL.l.cMember		mcip:CaliengerHoldingsL.l.cMember
Investment, Identifier [Axis]: Caravel Autism Health, LLC (Delayed Draw), Senior Secured Loans, Due 6/30/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CaravelAutismHealthLLCMember		mcip:CaravelAutismHealthLLCMember
Investment, Identifier [Axis]: Caravel Autism Health, LLC (Revolver), Senior Secured Loans, Due 6/30/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CaravelAutismHealthLLCMember		mcip:CaravelAutismHealthLLCMember
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Senior Secured Loans, Due 6/30/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CaravelAutismHealthLLCMember		mcip:CaravelAutismHealthLLCMember
Investment, Identifier [Axis]: Carrols Restaurant Group Inc, Senior Secured Loans, Due 4/30/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CarrolsRestaurantGroupIncMember
Investment, Identifier [Axis]: Cassavant Holdings, LLC, Unitranche Loans, Due 9/8/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CassavantHoldingsLLCMember		mcip:CassavantHoldingsLLCMember
Investment, Identifier [Axis]: Centaur (Palm Beach) Owner LLC and Panther National Golf Club LLC (Revolver), Senior Secured Loans, Due 4/30/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CentaurPalmBeachOwnerLLCandPantherNationalGolfClubLLCMember		mcip:CentaurPalmBeachOwnerLLCandPantherNationalGolfClubLLCMember
Investment, Identifier [Axis]: Centaur (Palm Beach) Owner LLC and Panther National Golf Club LLC, Senior Secured Loans, One, Due 4/30/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CentaurPalmBeachOwnerLLCandPantherNationalGolfClubLLCMember		mcip:CentaurPalmBeachOwnerLLCandPantherNationalGolfClubLLCMember
Investment, Identifier [Axis]: Centaur (Palm Beach) Owner LLC and Panther National Golf Club LLC, Senior Secured Loans, Two, Due 4/30/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CentaurPalmBeachOwnerLLCandPantherNationalGolfClubLLCMember		mcip:CentaurPalmBeachOwnerLLCandPantherNationalGolfClubLLCMember
Investment, Identifier [Axis]: Chess.com, LLC (Revolver), Senior Secured Loans, Due 12/31/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:Chess.comLLCMember		mcip:Chess.comLLCMember
Investment, Identifier [Axis]: Chess.com, LLC, Equity Securities, Class A units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:Chess.comLLCMember		mcip:Chess.comLLCMember
Investment, Identifier [Axis]: Chess.com, LLC, Senior Secured Loans, Due 12/31/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:Chess.comLLCMember		mcip:Chess.comLLCMember
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Delayed Draw, Senior Loans, Due 6/23/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ClydesdaleHoldingsLlcMember		mcip:ClydesdaleHoldingsLlcMember
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Revolver, Senior Loans, Due 6/23/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ClydesdaleHoldingsLlcMember		mcip:ClydesdaleHoldingsLlcMember
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Loans, Due 6/23/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ClydesdaleHoldingsLlcMember		mcip:ClydesdaleHoldingsLlcMember
Investment, Identifier [Axis]: Complete Innovations Inc., Senior Loans, One, Due 12/16/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CompleteInnovationsInc.Member		mcip:CompleteInnovationsInc.Member
Investment, Identifier [Axis]: Complete Innovations Inc., Senior Loans, Two, Due 12/16/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CompleteInnovationsInc.Member		mcip:CompleteInnovationsInc.Member
Investment, Identifier [Axis]: Crownpeak Technology Inc. (Revolver) Senior Secured Loans, Due 2/28/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CrownpeakTechnologyIncMember		mcip:CrownpeakTechnologyIncMember
Investment, Identifier [Axis]: Crownpeak Technology, Inc, Senior Secured Loans, Four, Due 2/28/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CrownpeakTechnologyIncMember		mcip:CrownpeakTechnologyIncMember
Investment, Identifier [Axis]: Crownpeak Technology, Inc, Senior Secured Loans, One, Due 2/28/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CrownpeakTechnologyIncMember		mcip:CrownpeakTechnologyIncMember
Investment, Identifier [Axis]: Crownpeak Technology, Inc, Senior Secured Loans, Three, Due 2/28/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CrownpeakTechnologyIncMember		mcip:CrownpeakTechnologyIncMember
Investment, Identifier [Axis]: Crownpeak Technology, Inc, Senior Secured Loans, Two, Due 2/28/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:CrownpeakTechnologyIncMember		mcip:CrownpeakTechnologyIncMember
Investment, Identifier [Axis]: DataOnline Corp., Revolver, Senior Loans, Two, Due 11/13/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:DataonlineCorp.Member		mcip:DataonlineCorp.Member
Investment, Identifier [Axis]: DataOnline Corp., Senior Loans, One, Due 11/13/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:DataonlineCorp.Member		mcip:DataonlineCorp.Member
Investment, Identifier [Axis]: Denali Midco 2, LLC, Delayed Draw, Senior Loans, Due 12/22/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:DenaliMidco2LlcMember		mcip:DenaliMidco2LlcMember
Investment, Identifier [Axis]: Denali Midco 2, LLC, Senior Loans, Due 12/22/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:DenaliMidco2LlcMember		mcip:DenaliMidco2LlcMember
Investment, Identifier [Axis]: Dorado Acquisition, Inc, Equity Securities, Class A-2 units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:DoradoAcquisitionIncMember		mcip:DoradoAcquisitionInc.Member
Investment, Identifier [Axis]: Dorado Acquisition, Inc, Senior Secured Loans, One, Due 6/30/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:DoradoAcquisitionInc.Member		mcip:DoradoAcquisitionIncMember
Investment, Identifier [Axis]: Dorado Acquisition, Inc, Senior Secured Loans, Two, Due 6/30/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:DoradoAcquisitionInc.Member		mcip:DoradoAcquisitionIncMember
Investment, Identifier [Axis]: Dorado Acquisition, Inc. (Delayed Draw), Senior Secured Loans, Due 6/30/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:DoradoAcquisitionInc.Member		mcip:DoradoAcquisitionIncMember
Investment, Identifier [Axis]: Dorado Acquisition, Inc. (Revolver), Senior Secured Loans, Due 6/30/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:DoradoAcquisitionInc.Member		mcip:DoradoAcquisitionIncMember
Investment, Identifier [Axis]: Dorado Acquisition, Inc., Equity Securities, Class A-1 units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:DoradoAcquisitionIncMember		mcip:DoradoAcquisitionInc.Member
Investment, Identifier [Axis]: Drawbridge Partners, LLC (Delayed Draw), Senior Secured Loans, due 9/1/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:DrawbridgePartnersLlcMember		mcip:DrawbridgePartnersLlcMember
Investment, Identifier [Axis]: Drawbridge Partners, LLC (Revolver), Senior Secured Loans, due 9/1/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:DrawbridgePartnersLlcMember		mcip:DrawbridgePartnersLlcMember
Investment, Identifier [Axis]: Drawbridge Partners, LLC, Equity Securities, Class A-1 units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:DrawbridgePartnersLlcMember		mcip:DrawbridgePartnersLlcMember
Investment, Identifier [Axis]: Drawbridge Partners, LLC, Senior Secured Loans, due 9/1/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:DrawbridgePartnersLlcMember		mcip:DrawbridgePartnersLlcMember
Investment, Identifier [Axis]: EOS Finco S.A.R.L., Senior Loans, Due 8/20/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EosFincoS.a.r.l.Member		mcip:EosFincoS.a.r.l.Member
Investment, Identifier [Axis]: Edustaff, LLC (Revolver), Senior Secured Loans, Due 12/8/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EdustaffLlcMember		mcip:EdustaffLlcMember
Investment, Identifier [Axis]: Edustaff, LLC, Equity Securites, Common stock
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EdustaffLlcMember		mcip:EdustaffLlcMember
Investment, Identifier [Axis]: Edustaff, LLC, Senior Secured Loans, Due 12/8/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EdustaffLlcMember		mcip:EdustaffLlcMember
Investment, Identifier [Axis]: Equine Network, LLC (Revolver), Senior Secured Loans, Due 12/31/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EquineNetworkLLCMember		mcip:EquineNetworkLLCMember
Investment, Identifier [Axis]: Equine Network, LLC, Equity Securities, Class A units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EquineNetworkLLCMember		mcip:EquineNetworkLLCMember
Investment, Identifier [Axis]: Equine Network, LLC, Senior Secured Loans, One, Due 12/31/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EquineNetworkLLCMember		mcip:EquineNetworkLLCMember
Investment, Identifier [Axis]: Equine Network, LLC, Senior Secured Loans, Three, Due 12/31/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EquineNetworkLLCMember		mcip:EquineNetworkLLCMember
Investment, Identifier [Axis]: Equine Network, LLC, Senior Secured Loans, Two, Due 12/31/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EquineNetworkLLCMember		mcip:EquineNetworkLLCMember
Investment, Identifier [Axis]: Evolve Biologics Inc., Delayed Draw, Unitranche Loans, Due 12/18/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EvolveBiologicsInc.Member		mcip:EvolveBiologicsInc.Member
Investment, Identifier [Axis]: Evolve Biologics Inc., Equity Securities, Equity commitments
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EvolveBiologicsInc.Member		mcip:EvolveBiologicsInc.Member
Investment, Identifier [Axis]: Evolve Biologics Inc., Equity Securities, Warrants
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EvolveBiologicsInc.Member		mcip:EvolveBiologicsInc.Member
Investment, Identifier [Axis]: Evolve Biologics Inc., Unitranche Loans, Due 12/18/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EvolveBiologicsInc.Member		mcip:EvolveBiologicsInc.Member
Investment, Identifier [Axis]: Exiger LLC (Delayed Draw), Senior Secured Loans, Due 9/30/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ExigerLlcMember		mcip:ExigerLlcMember
Investment, Identifier [Axis]: Exiger LLC (Revolver), Senior Secured Loans, Due 9/30/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ExigerLlcMember		mcip:ExigerLlcMember
Investment, Identifier [Axis]: Exiger LLC, Senior Secured Loans, One, Due 9/30/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ExigerLlcMember		mcip:ExigerLlcMember
Investment, Identifier [Axis]: Exiger LLC, Senior Secured Loans, Three, Due 9/30/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ExigerLlcMember		mcip:ExigerLlcMember
Investment, Identifier [Axis]: Exiger LLC, Senior Secured Loans, Two, Due 9/30/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ExigerLlcMember		mcip:ExigerLlcMember
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Equity Securites, Class A units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ExpressWashAcquisitionCompanyLLCMember		mcip:ExpressWashAcquisitionCompanyLLCMember
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Revolver, Senior Loans, Due 7/14/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ExpressWashAcquisitionCompanyLlcMember		mcip:ExpressWashAcquisitionCompanyLLCMember
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Senior Loans, One, Due 7/14/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ExpressWashAcquisitionCompanyLlcMember		mcip:ExpressWashAcquisitionCompanyLLCMember
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Senior Loans, Two, Due 7/14/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ExpressWashAcquisitionCompanyLlcMember		mcip:ExpressWashAcquisitionCompanyLLCMember
Investment, Identifier [Axis]: Fiasco Enterprises, LLC, Revolver, Senior Loans, Due 5/6/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:FiascoEnterprisesLlcMember		mcip:FiascoEnterprisesLlcMember
Investment, Identifier [Axis]: Fiasco Enterprises, LLC, Senior Loans, One, Due 5/6/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:FiascoEnterprisesLlcMember		mcip:FiascoEnterprisesLlcMember
Investment, Identifier [Axis]: Fiasco Enterprises, LLC, Senior Loans, Two, Due 5/6/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:FiascoEnterprisesLlcMember		mcip:FiascoEnterprisesLlcMember
Investment, Identifier [Axis]: Florida East Coast Industries, L L C, Junior Secured Loans, due 6/28/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:FloridaEastCoastIndustriesLLCMember
Investment, Identifier [Axis]: Florida East Coast Industries, L L C, Senior Secured Loans, due 6/28/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:FloridaEastCoastIndustriesLLCMember
Investment, Identifier [Axis]: Florida East Coast Industries, LLC, Junior Secured Loans, Due 6/28/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:FloridaEastCoastIndustriesLLCMember
Investment, Identifier [Axis]: Fueled Digital Media, LLC (Delayed Draw), Senior Secured Loans, Due 11/1/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:FueledDigitalMediaLlcMember		mcip:FueledDigitalMediaLlcMember
Investment, Identifier [Axis]: Fueled Digital Media, LLC (Revolver), Senior Secured Loans, Due 11/1/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		us-gaap-supplement:InvestmentAffiliatedIssuerControlledMember
Investment, Issuer Name [Extensible Enumeration]	mcip:FueledDigitalMediaLlcMember		mcip:FueledDigitalMediaLlcMember
Investment, Identifier [Axis]: Fueled Digital Media, LLC, Senior Secured Loans, Due 11/1/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:FueledDigitalMediaLlcMember		mcip:FueledDigitalMediaLlcMember
Investment, Identifier [Axis]: FusionSite MidCo LLC (Delayed Draw), Senior Secured Loans, Due 10/4/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:FusionsiteMidcoLlcMember		mcip:FusionsiteMidcoLlcMember
Investment, Identifier [Axis]: FusionSite MidCo LLC (Revolver), Senior Secured Loans, Due 10/4/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:FusionsiteMidcoLlcMember		mcip:FusionsiteMidcoLlcMember
Investment, Identifier [Axis]: FusionSite MidCo LLC, Senior Secured Loans, Due 10/4/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:FusionsiteMidcoLlcMember		mcip:FusionsiteMidcoLlcMember
Investment, Identifier [Axis]: GC Champion Acquisition LLC, Senior Secured Loans, One, Due 8/18/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:GCChampionAcquisitionLLCMember		mcip:GCChampionAcquisitionLLCMember
Investment, Identifier [Axis]: GC Champion Acquisition LLC, Senior Secured Loans, Two, Due 8/18/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:GCChampionAcquisitionLLCMember		mcip:GCChampionAcquisitionLLCMember
Investment, Identifier [Axis]: Golden State Buyer, Inc, Senior Secured Loans, Due 6/21/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:GoldenStateBuyerIncMember		mcip:GoldenStateBuyerIncMember
Investment, Identifier [Axis]: HS4 Acquisitionco, Inc, Senior Secured Loans, One, Due 7/9/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:HS4AcquisitioncoIncMember		mcip:HS4AcquisitioncoIncMember
Investment, Identifier [Axis]: HS4 Acquisitionco, Inc, Senior Secured Loans, Two, Due 7/9/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:HS4AcquisitioncoIncMember		mcip:HS4AcquisitioncoIncMember
Investment, Identifier [Axis]: HS4 Acquisitionco, Inc. (Revolver), Senior Secured Loans, Due 7/9/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:HS4AcquisitioncoIncMember		mcip:HS4AcquisitioncoIncMember
Investment, Identifier [Axis]: IDIG Parent, LLC, Equity Securites, Common stock
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:IDIGParentLLCMember		mcip:IDIGParentLLCMember
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Equity Securities, Class A preferred units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:IfAndPHoldingsCompanyLlcMember		mcip:IfPHoldingsCompanyLlcMember
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Revolver, Senior Loans, Due 10/3/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:IfAndPHoldingsCompanyLlcMember		mcip:IfAndPHoldingsCompanyLlcMember
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Senior Loans, Due 10/3/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:IfAndPHoldingsCompanyLlcMember		mcip:IfAndPHoldingsCompanyLlcMember
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, equity Securities, Class B common units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:IfAndPHoldingsCompanyLlcMember		mcip:IfPHoldingsCompanyLlcMember
Investment, Identifier [Axis]: INH Buyer, Inc, Senior Secured Loans, Due 6/28/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:INHBuyerInc.Member		mcip:INHBuyerInc.Member
Investment, Identifier [Axis]: Independence Buyer, Inc, Senior Secured Loans, Due 8/3/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:IndependenceBuyerInc.Member
Investment, Identifier [Axis]: Independence Buyer, Inc, Senior Secured Loans, due 8/3/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:IndependenceBuyerInc.Member
Investment, Identifier [Axis]: Independence Buyer, Inc. ( Revolver), Senior Secured Loans, due 8/3/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:IndependenceBuyerInc.Member
Investment, Identifier [Axis]: Independence Buyer, Inc. (Revolver), Senior Secured Loans, Due 8/3/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:IndependenceBuyerInc.Member
Investment, Identifier [Axis]: Independence Buyer, Inc., Equity Securities, Class A units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:IndependenceBuyerInc.Member		mcip:IndependenceBuyerInc.Member
Investment, Identifier [Axis]: InsideRE, LLC (Revolver), Senior Secured Loans, Due 12/22/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:InsidereLlcMember		mcip:InsidereLlcMember
Investment, Identifier [Axis]: InsideRE, LLC, Equity Securities, Class A common units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:InsidereLlcMember		mcip:InsidereLlcMember
Investment, Identifier [Axis]: InsideRE, LLC, Senior Secured Loans, One, Due 12/22/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:InsidereLlcMember		mcip:InsidereLlcMember
Investment, Identifier [Axis]: InsideRE, LLC, Senior Secured Loans, Two, Due 12/22/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:InsidereLlcMember		mcip:InsidereLlcMember
Investment, Identifier [Axis]: Inversiones DP6 (BVI) Numero Dos, Ltd., Delayed Draw, Unitranche Loans, Due 10/14/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:InversionesDp6BviNumeroDosLtd.Member		mcip:InversionesDp6BviNumeroDosLtd.Member
Investment, Identifier [Axis]: J2 BWA Funding III, LLC (Delayed Draw), Senior Secured Loans, Due 4/28/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	J2 BWA Funding III, LLC [Member]		mcip:J2BWAFundingLLCMember
Investment, Identifier [Axis]: J2 BWA Funding III, LLC, Equity Securities, Equity Commitment, One
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:J2BWAFundingLLCMember		J2 BWA Funding III, LLC [Member]
Investment, Identifier [Axis]: J2 BWA Funding III, LLC, Equity Securities, Equity Commitment, Two
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:J2BWAFundingLLCMember		J2 BWA Funding III, LLC [Member]
Investment, Identifier [Axis]: J2 BWA Funding LLC (Revolver), Senior Secured Loans, Due 12/24/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:J2BWAFundingLLCMember		mcip:J2BWAFundingLLCMember
Investment, Identifier [Axis]: J2 BWA Funding LLC, Equity Securities, Profit Sharing
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:J2BWAFundingLLCMember		mcip:J2BWAFundingLLCMember
Investment, Identifier [Axis]: Jumpstart Holdco, Inc., Equity Securities, Class A units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:JumpstartHoldcoInc.Member		mcip:JumpstartHoldcoInc.Member
Investment, Identifier [Axis]: Jumpstart Holdco, Inc., Unitranche Loans, Due 4/19/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:JumpstartHoldcoInc.Member		mcip:JumpstartHoldcoInc.Member
Investment, Identifier [Axis]: KL Moon Acquisition, LLC (fka Spectrum Science Communications, LLC) (Delayed Draw), Senior Secured Loans, Due 2/1/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:KlMoonAcquisitionLlcMember
Investment, Identifier [Axis]: KL Moon Acquisition, LLC (fka Spectrum Science Communications, LLC) (Revolver), Senior Secured Loans, Due 2/1/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:KlMoonAcquisitionLlcMember
Investment, Identifier [Axis]: KL Moon Acquisition, LLC (fka Spectrum Science Communications, LLC) Senior Secured Loans, Due 2/1/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:KlMoonAcquisitionLlcMember
Investment, Identifier [Axis]: KL Moon Acquisition, LLC, Equity Securities
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:KlMoonAcquisitionLlcMember
Investment, Identifier [Axis]: Kenco PPC Buyer LLC, Delayed Draw, Senior Loans, Due 11/15/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:KencoPpcBuyerLlcMember		mcip:KencoPpcBuyerLlcMember
Investment, Identifier [Axis]: Kenco PPC Buyer LLC, Revolver, Senior Loans, Due 11/15/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:KencoPpcBuyerLlcMember		mcip:KencoPpcBuyerLlcMember
Investment, Identifier [Axis]: Kenco PPC Buyer LLC, Senior Loans, Due 11/15/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:KencoPpcBuyerLlcMember		mcip:KencoPpcBuyerLlcMember
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC (Delayed Draw), Senior Secure Loans, One, Due 12/11/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:KingsleyGatePartnersLlcMember		mcip:KingsleyGatePartnersLlcMember
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC (Delayed Draw), Senior Secure Loans, Two, Due 12/11/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:KingsleyGatePartnersLlcMember		mcip:KingsleyGatePartnersLlcMember
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC (Revolver), Senior Secure Loans, Due 12/11/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:KingsleyGatePartnersLlcMember		mcip:KingsleyGatePartnersLlcMember
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC, Senior Secure Loans, Due 12/11/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:KingsleyGatePartnersLlcMember		mcip:KingsleyGatePartnersLlcMember
Investment, Identifier [Axis]: L V F Holdings, Inc. ( Revolver), Senior Secured Loans, due 6/10/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:LVFHoldingsIncMember
Investment, Identifier [Axis]: L V F Holdings, Inc., Senior Secured Loans, ( Delayed Draw) due 6/10/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:LVFHoldingsIncMember
Investment, Identifier [Axis]: L V F Holdings, Inc., Senior Secured Loans, One, due 6/10/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:LVFHoldingsIncMember
Investment, Identifier [Axis]: L V F Holdings, Inc., Senior Secured Loans, Two, due 6/10/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:LVFHoldingsIncMember
Investment, Identifier [Axis]: L X/ J T Intermediate Holdings, Inc. ( Revolver), Senior Secured Loans, due 3/11/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:LXJTIntermediateHoldingsIncMember
Investment, Identifier [Axis]: L X/ J T Intermediate Holdings, Inc., Senior Secured Loans, due 3/11/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:LXJTIntermediateHoldingsIncMember
Investment, Identifier [Axis]: LVF Holdings, Inc, Senior Secured Loans, One, Due 6/10/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:LVFHoldingsIncMember
Investment, Identifier [Axis]: LVF Holdings, Inc, Senior Secured Loans, Two, Due 6/10/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:LVFHoldingsIncMember
Investment, Identifier [Axis]: LVF Holdings, Inc. (Delayed Draw), Senior Secured Loans, Due 6/10/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:LVFHoldingsIncMember
Investment, Identifier [Axis]: LVF Holdings, Inc. (Revolver), Senior Secured Loans, Due 6/10/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:LVFHoldingsIncMember
Investment, Identifier [Axis]: LX/JT Intermediate Holdings, Inc, Senior Secured Loans, Due 3/11/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:LXJTIntermediateHoldingsIncMember
Investment, Identifier [Axis]: LX/JT Intermediate Holdings, Inc. (Revolver), Senior Secured Loans, Due 3/11/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:LXJTIntermediateHoldingsIncMember
Investment, Identifier [Axis]: Lessen Inc, Senior Secured Loans, Due 1/5/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:LessenIncMember
Investment, Identifier [Axis]: Lessen Inc., Equity Securities
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:LessenIncMember
Investment, Identifier [Axis]: Lifted Trucks Holdings LLL, (Delayed Draw), Senior Secured Loans, Due 8/2/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:LiftedTrucksHoldingsLLCMember
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC (Revolver), Senior Secured Loans, Due 8/2/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:LiftedTrucksHoldingsLLCMember
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC, Equity Securities, Class A shares
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:LiftedTrucksHoldingsLLCMember		mcip:LiftedTrucksHoldingsLLCMember
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC, Senior Secured Loans, Due 8/2/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:LiftedTrucksHoldingsLLCMember
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC. Senior Secured Loans, One, Due 8/2/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:LiftedTrucksHoldingsLLCMember
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC. Senior Secured Loans, Two, Due 8/2/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:LiftedTrucksHoldingsLLCMember
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, , Junior Secured Loans, Due 9/30/2023
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Light Wave Dental Management, LLC [Member]		Light Wave Dental Management, LLC [Member]
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Delayed Draw, Senior Loans, Due 1/2/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Light Wave Dental Management, LLC [Member]		Light Wave Dental Management, LLC [Member]
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Revolver, Senior Loans, Due 1/2/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Light Wave Dental Management, LLC [Member]		Light Wave Dental Management, LLC [Member]
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Senior Loans, Four, Due 1/2/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Light Wave Dental Management, LLC [Member]		Light Wave Dental Management, LLC [Member]
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Senior Loans, One, Due 1/2/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Light Wave Dental Management, LLC [Member]		Light Wave Dental Management, LLC [Member]
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Senior Loans, Three, Due 1/2/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Light Wave Dental Management, LLC [Member]		Light Wave Dental Management, LLC [Member]
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Senior Loans, Two, Due 1/2/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Light Wave Dental Management, LLC [Member]		Light Wave Dental Management, LLC [Member]
Investment, Identifier [Axis]: Liquid Tech Solutions Holdings, LLC, Senior Secured Loans, due 3/17/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:LiquidTechSolutionsHoldingsLlcMember		mcip:LiquidTechSolutionsHoldingsLlcMember
Investment, Identifier [Axis]: M C P Shaw Acquisitionco, L L C ( Revolver), Senior Secured Loans, due 11/28/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MCPShawAcquisitioncoLLCMember
Investment, Identifier [Axis]: M C P Shaw Acquisitionco, L L C, Senior Secured Loans, One, due 11/28/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MCPShawAcquisitioncoLLCMember
Investment, Identifier [Axis]: M C P Shaw Acquisitionco, L L C, Senior Secured Loans, Two, due 11/28/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MCPShawAcquisitioncoLLCMember
Investment, Identifier [Axis]: M V Receivables I I, L L C ( Delayed Draw), Senior Secured Loans, due 7/29/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:MVReceivablesIILLCMember
Investment, Identifier [Axis]: MCP Shaw Acquisitionco, LLC (Revolver), Senior Secured Loans, Due 11/28/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:MCPShawAcquisitioncoLLCMember
Investment, Identifier [Axis]: MCP Shaw Acquisitionco, LLC, Equity Securities, Class A-2 units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MCPShawAcquisitioncoLLCMember		mcip:MCPShawAcquisitioncoLLCMember
Investment, Identifier [Axis]: MCP Shaw Acquisitionco, LLC, Senior Secured Loans, One, Due 11/28/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:MCPShawAcquisitioncoLLCMember
Investment, Identifier [Axis]: MCP Shaw Acquisitionco, LLC, Senior Secured Loans, Three, due 11/28/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MCPShawAcquisitioncoLLCMember		mcip:MCPShawAcquisitioncoLLCMember
Investment, Identifier [Axis]: MCP Shaw Acquisitionco, LLC, Senior Secured Loans, Two, Due 11/28/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:MCPShawAcquisitioncoLLCMember
Investment, Identifier [Axis]: MPH Acquisition Holdings LLC, Senior Secured Loans, Due 9/1/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MphAcquisitionHoldingsLlcMember		mcip:MphAcquisitionHoldingsLlcMember
Investment, Identifier [Axis]: MV Receivables II, LLC, Equity Securities, Common stock
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MVReceivablesIILLCMember		mcip:MVReceivablesIILLCMember
Investment, Identifier [Axis]: MV Receivables II, LLC, Equity Securities, Warrants
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MVReceivablesIILLCMember		mcip:MVReceivablesIILLCMember
Investment, Identifier [Axis]: MV Receivables II, LLC, Senior Secured Loans, due 7/29/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MVReceivablesIILLCMember
Investment, Identifier [Axis]: Madison Logic Holdings, Inc, Senior Secured Loans, Due 12/29/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MadisonLogicHoldingsIncMember		mcip:MadisonLogicHoldingsIncMember
Investment, Identifier [Axis]: Madison Logic Holdings, Inc. (Revolver), Senior Secured Loans, Due 12/29/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MadisonLogicHoldingsIncMember
Investment, Identifier [Axis]: Madison Logic Holdings, Inc. (Revolver), Senior Secured Loans, Due 12/30/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:MadisonLogicHoldingsIncMember
Investment, Identifier [Axis]: Mark Logic Corporation ( Revolver), Senior Secured Loans, due 10/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:MarkLogicCorporationMember
Investment, Identifier [Axis]: Mark Logic Corporation, Senior Secured Loans, Four, due 10/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:MarkLogicCorporationMember
Investment, Identifier [Axis]: Mark Logic Corporation, Senior Secured Loans, One, due 10/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:MarkLogicCorporationMember
Investment, Identifier [Axis]: Mark Logic Corporation, Senior Secured Loans, Three, due 10/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:MarkLogicCorporationMember
Investment, Identifier [Axis]: Mark Logic Corporation, Senior Secured Loans, Two, due 10/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:MarkLogicCorporationMember
Investment, Identifier [Axis]: MarkLogic Corporation, Equity Securities, Class A Units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:MarkLogicCorporationMember
Investment, Identifier [Axis]: Matrix Parent, Inc, Senior Secured Loans, Due 3/1/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MatrixParentIncMember		mcip:MatrixParentIncMember
Investment, Identifier [Axis]: Medallia, Inc, Senior Secured Loans, due 10/27/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MedalliaIncMember		mcip:MedalliaIncMember
Investment, Identifier [Axis]: Mindbody, Inc, Senior Secured Loans, One, Due 2/14/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MindbodyIncMember		mcip:MindbodyIncMember
Investment, Identifier [Axis]: Mindbody, Inc, Senior Secured Loans, Two, Due 2/14/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MindbodyIncMember		mcip:MindbodyIncMember
Investment, Identifier [Axis]: Mindbody, Inc. (Revolver), Senior Secured Loans, Due 2/14/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MindbodyIncMember		mcip:MindbodyIncMember
Investment, Identifier [Axis]: Money Lion, Inc. ( Delayed Draw), Junior Secured Loans, due 3/24/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:MoneyLionIncMember
Investment, Identifier [Axis]: Money Lion, Inc., Junior Secured Loans, due 3/24/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:MoneyLionIncMember
Investment, Identifier [Axis]: Money Lion, Inc., Junior Secured Loans, due 5/1/2023
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:MoneyLionIncMember
Investment, Identifier [Axis]: MoneyLion, Inc., Delayed Draw, Junior Secured Loans, Due 3/24/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Name [Extensible Enumeration]	mcip:MoneyLionIncMember
Investment, Identifier [Axis]: MoneyLion, Inc., Junior Secured Loans, Due 3/24/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MoneyLionIncMember
Investment, Identifier [Axis]: MoneyLion, Inc., Junior Secured Loans, Due 5/1/2023
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MoneyLionIncMember
Investment, Identifier [Axis]: Moonraker Acquisitionco LLC (Delayed Draw), Senior Secured Loans, One, Due 8/4/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MoonrakerAcquisitioncoLlcMember		mcip:MoonrakerAcquisitioncoLlcMember
Investment, Identifier [Axis]: Moonraker Acquisitionco LLC (Delayed Draw), Senior Secured Loans, Two, Due 8/4/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MoonrakerAcquisitioncoLlcMember		mcip:MoonrakerAcquisitioncoLlcMember
Investment, Identifier [Axis]: Moonraker Acquisitionco LLC (Revolver), Senior Secured Loans, Due 8/4/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MoonrakerAcquisitioncoLlcMember		mcip:MoonrakerAcquisitioncoLlcMember
Investment, Identifier [Axis]: Moonraker Acquisitionco LLC, Senior Secured Loans, Due 8/4/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:MoonrakerAcquisitioncoLlcMember		mcip:MoonrakerAcquisitioncoLlcMember
Investment, Identifier [Axis]: NCBP Property, LLC, Senior Secured Loans, Due 6/16/2023
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NCBPPropertyLLCMember		mcip:NCBPPropertyLLCMember
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc, Equity Securities, Common units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NqPeProjectColosseumMidcoIncMember		mcip:NqPeProjectColosseumMidcoIncMember
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc, Senior Secured Loans, Due 10/4/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NqPeProjectColosseumMidcoInc.Member		mcip:NqPeProjectColosseumMidcoIncMember
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc. (Delayed Draw), Senior Secured Loans, Due 10/4/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NqPeProjectColosseumMidcoInc.Member		mcip:NqPeProjectColosseumMidcoIncMember
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc. (Revolver), Senior Secured Loans, Due 10/4/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NqPeProjectColosseumMidcoInc.Member		mcip:NqPeProjectColosseumMidcoIncMember
Investment, Identifier [Axis]: NTM Acquisition Corp, Senior Secured Loans, Due 6/7/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NtmAcquisitionCorpMember		mcip:NtmAcquisitionCorpMember
Investment, Identifier [Axis]: Nastel Technologies, LLC
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Name [Extensible Enumeration]	Nastel Technologies, LLC [ Member]
Interest income	$ 101
Investment, Identifier [Axis]: Nastel Technologies, LLC (3,408 Class A units)
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Nastel Technologies, LLC [ Member]
Investment, Identifier [Axis]: Nastel Technologies, LLC (Revolver)
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Nastel Technologies, LLC [ Member]
Investment, Identifier [Axis]: Nastel Technologies, LLC (Revolver), Senior Secured Loans, Two, Due 9/21/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Nastel Technologies, LLC [ Member]		Nastel Technologies, LLC [ Member]
Investment, Identifier [Axis]: Nastel Technologies, LLC, Equity Securities
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Nastel Technologies, LLC [ Member]		Nastel Technologies, LLC [ Member]
Investment, Identifier [Axis]: Nastel Technologies, LLC, Senior Secured Loans, One, Due 9/21/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Nastel Technologies, LLC [ Member]		Nastel Technologies, LLC [ Member]
Investment, Identifier [Axis]: NationsBenefits, LLC (Delayed Draw), Senior Secured Loans, Due 8/26/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NationsBenefitsLLCMember		mcip:NationsBenefitsLLCMember
Investment, Identifier [Axis]: NationsBenefits, LLC (Revolver), Senior Secured Loans, Due 8/26/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NationsBenefitsLLCMember		mcip:NationsBenefitsLLCMember
Investment, Identifier [Axis]: NationsBenefits, LLC, Equity Securities, Common units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NationsBenefitsLLCMember		mcip:NationsBenefitsLLCMember
Investment, Identifier [Axis]: NationsBenefits, LLC, Equity Securities, Series B units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NationsBenefitsLLCMember		mcip:NationsBenefitsLLCMember
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans, One, Due 8/26/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NationsBenefitsLLCMember		mcip:NationsBenefitsLLCMember
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans, Two, Due 8/26/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NationsBenefitsLLCMember		mcip:NationsBenefitsLLCMember
Investment, Identifier [Axis]: New Engen, Inc., , Unitranche Loans, Two, Due 12/3/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NewEngenInc.Member		mcip:NewEngenInc.Member
Investment, Identifier [Axis]: New Engen, Inc., Equity Securites, Class B common units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NewEngenInc.Member		mcip:NewEngenInc.Member
Investment, Identifier [Axis]: New Engen, Inc., Equity Securites, Preferred units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NewEngenInc.Member		mcip:NewEngenInc.Member
Investment, Identifier [Axis]: New Engen, Inc., Unitranche Loans, One, Due 12/3/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NewEngenInc.Member		mcip:NewEngenInc.Member
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc, Senior Secured Loans, Four, due 10/30/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NorthHavenUSHCAcquisitionIncMember		mcip:NorthHavenUSHCAcquisitionIncMember
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc, Senior Secured Loans, One, Due 10/30/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NorthHavenUSHCAcquisitionIncMember		mcip:NorthHavenUSHCAcquisitionIncMember
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc, Senior Secured Loans, Three, due 10/30/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NorthHavenUSHCAcquisitionIncMember		mcip:NorthHavenUSHCAcquisitionIncMember
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc, Senior Secured Loans, Two, Due 10/30/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NorthHavenUSHCAcquisitionIncMember		mcip:NorthHavenUSHCAcquisitionIncMember
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc. (Delayed Draw), Senior Secured Loans, Due 10/30/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NorthHavenUSHCAcquisitionIncMember		mcip:NorthHavenUSHCAcquisitionIncMember
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc. (Revolver), Senior Secured Loans, Due 10/30/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:NorthHavenUSHCAcquisitionIncMember		mcip:NorthHavenUSHCAcquisitionIncMember
Investment, Identifier [Axis]: OIS Management Services, LLC (Delayed Draw), Senior Secured Loans, Due 11/16/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:OisManagementServicesLlcMember		mcip:OisManagementServicesLlcMember
Investment, Identifier [Axis]: OIS Management Services, LLC (Revolver), Senior Secured Loans, Due 11/16/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:OisManagementServicesLlcMember		mcip:OisManagementServicesLlcMember
Investment, Identifier [Axis]: OIS Management Services, LLC, Senior Secured Loans, Due 11/16/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:OisManagementServicesLlcMember		mcip:OisManagementServicesLlcMember
Investment, Identifier [Axis]: Oceana Australian Fixed Income Trust, Senior Secured Loans, Due 2/25/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:OceanaAustralianFixedIncomeTrustMember		mcip:OceanaAustralianFixedIncomeTrustMember
Investment, Identifier [Axis]: Oceana Australian Fixed Income Trust, Senior Secured Loans, Due 6/29/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:OceanaAustralianFixedIncomeTrustMember		mcip:OceanaAustralianFixedIncomeTrustMember
Investment, Identifier [Axis]: Onit, Inc., Unitranche Loans, Due 5/2/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:OnitInc.Member		mcip:OnitInc.Member
Investment, Identifier [Axis]: Optomi, LLC (Revolver), Senior Secured Loans, Due 12/16/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:OptomiLlcMember		mcip:OptomiLlcMember
Investment, Identifier [Axis]: Optomi, LLC, Equity Securities, Class A units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:OptomiLlcMember		mcip:OptomiLlcMember
Investment, Identifier [Axis]: Optomi, LLC, Senior Secured Loans, One, Due 12/16/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:OptomiLlcMember		mcip:OptomiLlcMember
Investment, Identifier [Axis]: Optomi, LLC, Senior Secured Loans, Two, Due 12/16/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:OptomiLlcMember		mcip:OptomiLlcMember
Investment, Identifier [Axis]: Oranje Holdco, Inc, Senior Secured Loans, Due 2/1/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:OranjeHoldcoIncMember
Investment, Identifier [Axis]: Oranje Holdco, Inc. (Revolver), Senior Secured Loans, Due 2/1/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:OranjeHoldcoIncMember
Investment, Identifier [Axis]: Pacific Bells, LLC, Senior Loans, Due 11/10/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:PacificBellsLlcMember		mcip:PacificBellsLlcMember
Investment, Identifier [Axis]: Panda Acquisition, LLC, Senior Secured Loans, due 10/18/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:PandaAcquisitionLlcMember		mcip:PandaAcquisitionLlcMember
Investment, Identifier [Axis]: Par Petroleum, LLC, Senior Secured Loans, Due 1/12/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:ParPetroleumLlcMember
Investment, Identifier [Axis]: Patagonia Holdco LLC, Senior Loans, Due 8/1/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:PatagoniaHoldcoLlcMember		mcip:PatagoniaHoldcoLlcMember
Investment, Identifier [Axis]: Polychem Acquisition, L L C, Senior Secured Loans, due 3/17/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:PolychemAcquisitionLLCMember
Investment, Identifier [Axis]: Polychem Acquisition, LLC, Senior Secured Loans, Due 3/17/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:PolychemAcquisitionLLCMember
Investment, Identifier [Axis]: Premier Roofing L.L.C, Senior Secured Loans, Due 8/29/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:PremierRoofingLlcMember
Investment, Identifier [Axis]: Premier Roofing L.L.C. (Revolver), Senior Secured Loans, due 8/29/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:PremierRoofingLlcMember		mcip:PremierRoofingLlcMember
Investment, Identifier [Axis]: Premier Roofing L.L.C., Senior Secured Loans, due 8/29/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:PremierRoofingLlcMember
Investment, Identifier [Axis]: Prototek LLC (Delayed Draw), Senior Secured Loans, Due 12/8/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:PrototekLlcMember		mcip:PrototekLlcMember
Investment, Identifier [Axis]: Prototek LLC (Revolver), Senior Secured Loans, Due 12/8/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:PrototekLlcMember		mcip:PrototekLlcMember
Investment, Identifier [Axis]: Prototek LLC, Senior Secured Loans, Due 12/8/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:PrototekLlcMember		mcip:PrototekLlcMember
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans, (Delayed Draw), Due 12/15/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:QfHoldingsIncMember
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans, Four, Due 12/15/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:QfHoldingsIncMember
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans, One, Due 12/15/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:QfHoldingsIncMember		mcip:QfHoldingsIncMember
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans, Three, Due 12/15/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:QfHoldingsIncMember		mcip:QfHoldingsIncMember
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans, Two, Due 12/15/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:QfHoldingsIncMember		mcip:QfHoldingsIncMember
Investment, Identifier [Axis]: QF Holdings, Inc. (Revolver), Senior Secured Loans, Due 12/15/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:QfHoldingsIncMember		mcip:QfHoldingsIncMember
Investment, Identifier [Axis]: QuarterNorth Energy Inc., Equity Securities, Common stock
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:QuarternorthEnergyIncMember		mcip:QuarternorthEnergyIncMember
Investment, Identifier [Axis]: Quest Resource Management Group LLC Senior Secured Loans Four Due 10 20 2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:QuestResourceManagementGroupLLCMember		mcip:QuestResourceManagementGroupLLCMember
Investment, Identifier [Axis]: Quest Resource Management Group, L L C, Senior Secured Loans, One, due 10/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:QuestResourceManagementGroupLLCMember
Investment, Identifier [Axis]: Quest Resource Management Group, L L C, Senior Secured Loans, Three, due 10/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:QuestResourceManagementGroupLLCMember
Investment, Identifier [Axis]: Quest Resource Management Group, L L C, Senior Secured Loans, Two, due 10/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:QuestResourceManagementGroupLLCMember
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Equity Securities, One, Warrants
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:QuestResourceManagementGroupLLCMember		mcip:QuestResourceManagementGroupLLCMember
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Equity Securities, Two, Warrants
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:QuestResourceManagementGroupLLCMember		mcip:QuestResourceManagementGroupLLCMember
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Senior Secured Loans, One, Due 10/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:QuestResourceManagementGroupLLCMember
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Senior Secured Loans, Three, Due 10/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:QuestResourceManagementGroupLLCMember
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Senior Secured Loans, Two, Due 10/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:QuestResourceManagementGroupLLCMember
Investment, Identifier [Axis]: RS Acquisition, LLC, Delayed Draw, Senior Loans, Due 12/14/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RsAcquisitionLlcMember		mcip:RsAcquisitionLlcMember
Investment, Identifier [Axis]: RS Acquisition, LLC, Equity Securites, Common units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RsAcquisitionLlcMember		mcip:RsAcquisitionLlcMember
Investment, Identifier [Axis]: RS Acquisition, LLC, Revolver, Senior Loans, Due 12/14/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RsAcquisitionLlcMember		mcip:RsAcquisitionLlcMember
Investment, Identifier [Axis]: RS Acquisition, LLC, Senior Loans, Due 12/14/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RsAcquisitionLlcMember		mcip:RsAcquisitionLlcMember
Investment, Identifier [Axis]: Randys Holdings, Inc., Delayed Draw, Senior Loans, Due 11/1/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RandysHoldingsInc.Member		mcip:RandysHoldingsInc.Member
Investment, Identifier [Axis]: Randys Holdings, Inc., Revolver, Senior Loans, Due 11/1/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RandysHoldingsInc.Member		mcip:RandysHoldingsInc.Member
Investment, Identifier [Axis]: Randys Holdings, Inc., Senior Loans, Due 11/1/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RandysHoldingsInc.Member		mcip:RandysHoldingsInc.Member
Investment, Identifier [Axis]: Really Great Reading Company, Inc, Senior Secured Loans, Due 12/8/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ReallyGreatReadingCompanyIncMember		mcip:ReallyGreatReadingCompanyIncMember
Investment, Identifier [Axis]: Really Great Reading Company, Inc. (Delayed Draw), Senior Secured Loans, Due 12/8/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ReallyGreatReadingCompanyIncMember		mcip:ReallyGreatReadingCompanyIncMember
Investment, Identifier [Axis]: Really Great Reading Company, Inc. (Revolver), Senior Secured Loans, Due 12/8/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ReallyGreatReadingCompanyIncMember		mcip:ReallyGreatReadingCompanyIncMember
Investment, Identifier [Axis]: Really Great Reading Company, Inc., Equity Securites, Series A units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ReallyGreatReadingCompanyIncMember		mcip:ReallyGreatReadingCompanyIncMember
Investment, Identifier [Axis]: Recorded Future, Inc., Equity Securities, Class A units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Recorded Future, Inc [ Member]		Recorded Future, Inc [ Member]
Investment, Identifier [Axis]: Recycled Plastics Industries, L L C ( Revolver), Senior Secured Loans, due 8/4/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RecycledPlasticsIndustriesLLCMember
Investment, Identifier [Axis]: Recycled Plastics Industries, L L C, Senior Secured Loans, due 8/4/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RecycledPlasticsIndustriesLLCMember
Investment, Identifier [Axis]: Recycled Plastics Industries, LLC (Revolver), Senior Secured Loans, Due 8/4/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:RecycledPlasticsIndustriesLLCMember
Investment, Identifier [Axis]: Recycled Plastics Industries, LLC, Senior Secured Loans, Due 8/4/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:RecycledPlasticsIndustriesLLCMember
Investment, Identifier [Axis]: Relativity ODA LLC (Revolver), Senior Secured Loans, Due 5/12/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RelativityODALLCMember		mcip:RelativityODALLCMember
Investment, Identifier [Axis]: Relativity ODA LLC, Senior Secured Loans, Due 5/12/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RelativityODALLCMember		mcip:RelativityODALLCMember
Investment, Identifier [Axis]: Relevate Health Group, L L C ( Delayed Draw), Senior Secured Loans, due, 11/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:RelevateHealthGroupLLCMember
Investment, Identifier [Axis]: Relevate Health Group, LLC (Revolver), Senior Secured Loans, Due 11/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RelevateHealthGroupLLCMember		mcip:RelevateHealthGroupLLCMember
Investment, Identifier [Axis]: Relevate Health Group, LLC, Equity Securites, Class B common units)
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RelevateHealthGroupLLCMember		mcip:RelevateHealthGroupLLCMember
Investment, Identifier [Axis]: Relevate Health Group, LLC, Equity Securites, Preferred units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RelevateHealthGroupLLCMember		mcip:RelevateHealthGroupLLCMember
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans, One, Due 11/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RelevateHealthGroupLLCMember		mcip:RelevateHealthGroupLLCMember
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans, Three, Due 11/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RelevateHealthGroupLLCMember
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans, Two, Due 11/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RelevateHealthGroupLLCMember		mcip:RelevateHealthGroupLLCMember
Investment, Identifier [Axis]: Renaissance Learning, Inc, Senior Secured Loans, Due 4/5/2030
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:RenaissanceLearningIncMember
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Senior Secured Loans, Due 12/20/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ResearchNowGroupInc.andSurveySamplingInternationalLLCMember		mcip:ResearchNowGroupInc.andSurveySamplingInternationalLLCMember
Investment, Identifier [Axis]: S&S Holdings LLC, Senior Loans, Due 3/10/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SSHoldingsLlcMember		mcip:SAndSHoldingsLlcMember
Investment, Identifier [Axis]: SCP Eye Care Holdco, LLC (Delayed Draw), Senior Secured Loans, Due 10/5/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ScpEyeCareHoldcoLlcMember		mcip:ScpEyeCareHoldcoLlcMember
Investment, Identifier [Axis]: SCP Eye Care Holdco, LLC (Revolver), Senior Secured Loans, Due 10/5/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ScpEyeCareHoldcoLlcMember		mcip:ScpEyeCareHoldcoLlcMember
Investment, Identifier [Axis]: SCP Eye Care Holdco, LLC, Senior Secured Loans, Due 10/5/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ScpEyeCareHoldcoLlcMember		mcip:ScpEyeCareHoldcoLlcMember
Investment, Identifier [Axis]: SCP Intermediate Holdings, LLC, Senior Secured Loans, Due 12/28/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ScpIntermediateHoldingsLlcMember		mcip:ScpIntermediateHoldingsLlcMember
Investment, Identifier [Axis]: SFR Holdco, LLC (10.5% of equity commitments), (LLC interest)
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled affiliate company investments	Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	S F R Holdco, L L C [ Member]	S F R Holdco, L L C [ Member]	S F R Holdco, L L C [ Member]
Investment, Identifier [Axis]: SFR Holdco, LLC (13.9% of equity commitments), (LLC interest)
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled affiliate company investments	Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	S F R Holdco, L L C [ Member]	S F R Holdco, L L C [ Member]	S F R Holdco, L L C [ Member]
Investment, Identifier [Axis]: SFR Holdco, LLC (Delayed Draw), Junior Secured Loans, Due 7/28/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	S F R Holdco, L L C [ Member]		S F R Holdco, L L C [ Member]
Investment, Identifier [Axis]: SFR Holdco, LLC (Delayed draw junior secured loan)
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments	Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	S F R Holdco, L L C [ Member]	S F R Holdco, L L C [ Member]
Interest income	$ 64	$ 1
Investment, Identifier [Axis]: SFR Holdco, LLC, Equity Securities, Two, due 7/28/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	S F R Holdco, L L C [ Member]
Investment, Identifier [Axis]: SFR Holdco, LLC, Equity Securities, due 7/28/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	S F R Holdco, L L C [ Member]
Investment, Identifier [Axis]: SFR Holdco, LLC, Junior Secured Loan, One
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments	Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	S F R Holdco, L L C [ Member]	S F R Holdco, L L C [ Member]
Interest income	$ 117	$ 117
Investment, Identifier [Axis]: SFR Holdco, LLC, Junior Secured Loans, Due 7/28/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	S F R Holdco, L L C [ Member]		S F R Holdco, L L C [ Member]
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions) (Revolver), Senior Secured Loans, Due 7/25/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:ApiHoldingsIiiCorpMember
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions) (Revolver), Senior Secured Loans, Due 7/25/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SHIHoldingsIncMember
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans, Five, Due 7/25/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SHIHoldingsIncMember		mcip:ApiHoldingsIiiCorpMember
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans, Four, Due 7/25/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SHIHoldingsIncMember		mcip:ApiHoldingsIiiCorpMember
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans, One, Due 7/25/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SHIHoldingsIncMember		mcip:ApiHoldingsIiiCorpMember
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans, Three, Due 7/25/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SHIHoldingsIncMember		mcip:ApiHoldingsIiiCorpMember
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans, Two, Due 7/25/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SHIHoldingsIncMember		mcip:ApiHoldingsIiiCorpMember
Investment, Identifier [Axis]: SIP Care Services, LLC (Delayed Draw), Senior Secured Loans, Due 12/30/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SipCareServicesLlcMember		mcip:SipCareServicesLlcMember
Investment, Identifier [Axis]: SIP Care Services, LLC (Revolver), Senior Secured Loans, Due 12/30/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SipCareServicesLlcMember		mcip:SipCareServicesLlcMember
Investment, Identifier [Axis]: SIP Care Services, LLC, Senior Secured Loans, Due 12/30/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SipCareServicesLlcMember		mcip:SipCareServicesLlcMember
Investment, Identifier [Axis]: Sabrosura Foods Llc Et Al Equity Securities Class AAA Units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SabrosuraFoodsLlcEtAlMember
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al (Revolver), Senior Secured Loans, due 10/18/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SabrosuraFoodsLlcEtAlMember		mcip:SabrosuraFoodsLlcEtAlMember
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Equity Securities, Class A interests
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SabrosuraFoodsLlcEtAlMember		mcip:SabrosuraFoodsLlcEtAlMember
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Equity Securities, Class AA units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SabrosuraFoodsLlcEtAlMember		mcip:SabrosuraFoodsLlcEtAlMember
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Senior Secured Loans, One, Due 10/18/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:SabrosuraFoodsLlcEtAlMember
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Senior Secured Loans, Two, due 10/18/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SabrosuraFoodsLlcEtAlMember		mcip:SabrosuraFoodsLlcEtAlMember
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Senior Secured Loans, due 10/18/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SabrosuraFoodsLlcEtAlMember
Investment, Identifier [Axis]: Sandvine Corporation, Senior Loans, Due 10/31/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SandvineCorporationMember		mcip:SandvineCorporationMember
Investment, Identifier [Axis]: Second Avenue S F R Holdings I I L L C ( Revolver), Senior Secured Loans, Due 8/9/2024
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Second Avenue S F R Holdings I I L L C [ Member]		Second Avenue S F R Holdings I I L L C [ Member]
Investment, Identifier [Axis]: Second Avenue SFR Holdings II LLC (Revolver)
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments	Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	Second Avenue S F R Holdings I I L L C [ Member]	Second Avenue S F R Holdings I I L L C [ Member]
Interest income	$ 138	$ 46
Investment, Identifier [Axis]: Securly, Inc, Senior Secured Loans, One, Due 4/22/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SecurlyIncMember		mcip:SecurlyIncMember
Investment, Identifier [Axis]: Securly, Inc, Senior Secured Loans, Three, Due 4/22/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SecurlyIncMember		mcip:SecurlyIncMember
Investment, Identifier [Axis]: Securly, Inc, Senior Secured Loans, Two, Due 4/22/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SecurlyIncMember		mcip:SecurlyIncMember
Investment, Identifier [Axis]: Securly, Inc. (Delayed Draw), Senior Secured Loans, Due 4/22/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SecurlyIncMember		mcip:SecurlyIncMember
Investment, Identifier [Axis]: Securly, Inc. (Revolver), Senior Secured Loans, Due 4/22/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SecurlyIncMember		mcip:SecurlyIncMember
Investment, Identifier [Axis]: Seran BioScience, LLC (Delayed Draw), Senior Secured Loans, Due 7/8/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SeranBioScienceLLCMember		mcip:SeranBioScienceLLCMember
Investment, Identifier [Axis]: Seran BioScience, LLC (Revolver), Senior Secured Loans, Due 7/8/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SeranBioScienceLLCMember		mcip:SeranBioScienceLLCMember
Investment, Identifier [Axis]: Seran BioScience, LLC, Equity Securities, Common units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SeranBioScienceLLCMember		mcip:SeranBioScienceLLCMember
Investment, Identifier [Axis]: Seran BioScience, LLC, Senior Secured Loans, Due 7/8/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SeranBioScienceLLCMember		mcip:SeranBioScienceLLCMember
Investment, Identifier [Axis]: SheerTrans Solutions, LLC
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SheertransSolutionsLlcMember
Interest income	$ 161
Investment, Identifier [Axis]: SheerTrans Solutions, LLC (8,642,579 preferred interests)
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Name [Extensible Enumeration]	mcip:SheertransSolutionsLlcMember
Investment, Identifier [Axis]: SheerTrans Solutions, LLC (Revolver)
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SheertransSolutionsLlcMember
Interest income	$ 2
Investment, Identifier [Axis]: SheerTrans Solutions, LLC (Revolver), Senior Secured Loans, Two, Due 7/29/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SheertransSolutionsLlcMember		mcip:SheertransSolutionsLlcMember
Investment, Identifier [Axis]: SheerTrans Solutions, LLC, Equity Securities
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SheertransSolutionsLlcMember		mcip:SheertransSolutionsLlcMember
Investment, Identifier [Axis]: SheerTrans Solutions, LLC, Senior Secured Loans, One, Due 7/29/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SheertransSolutionsLlcMember		mcip:SheertransSolutionsLlcMember
Investment, Identifier [Axis]: Simplicity Financial Marketing Group Holdings Inc, Senior Secured Loans, Due 12/2/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SimplicityFinancialMarketingGroupHoldingsIncMember		mcip:SimplicityFinancialMarketingGroupHoldingsIncMember
Investment, Identifier [Axis]: Simplicity Financial Marketing Group Holdings Inc. (Delayed Draw), Senior Secured Loans, Due 12/2/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SimplicityFinancialMarketingGroupHoldingsIncMember		mcip:SimplicityFinancialMarketingGroupHoldingsIncMember
Investment, Identifier [Axis]: Simplicity Financial Marketing Group Holdings Inc. (Revolver), Senior Secured Loans, Due 12/2/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SimplicityFinancialMarketingGroupHoldingsIncMember		mcip:SimplicityFinancialMarketingGroupHoldingsIncMember
Investment, Identifier [Axis]: Skillsoft Corp., Equity Securites, Class A shares
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SkillsoftCorp.Member		mcip:SkillsoftCorp.Member
Investment, Identifier [Axis]: Sound Inpatient Physicians, Inc, Senior Secured Loans, Due 6/28/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SoundInpatientPhysiciansIncMember		mcip:SoundInpatientPhysiciansIncMember
Investment, Identifier [Axis]: Spectrum Science Communications, L L C ( Revolver), Senior Secured Loans, due 1/25/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:SpectrumScienceCommunicationsLLCMember
Investment, Identifier [Axis]: Spectrum Science Communications, L L C, Senior Secured Loans, due 1/25/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:SpectrumScienceCommunicationsLLCMember
Investment, Identifier [Axis]: Spherix Global Inc, Senior Secured Loans, Due 12/22/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SpherixGlobalIncMember		mcip:SpherixGlobalIncMember
Investment, Identifier [Axis]: Spherix Global Inc. (Revolver), Senior Secured Loans, Due 12/22/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SpherixGlobalIncMember		mcip:SpherixGlobalIncMember
Investment, Identifier [Axis]: Spherix Global Inc., Equity Securites, Class A units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SpherixGlobalInc.Member		mcip:SpherixGlobalInc.Member
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC (Delayed Draw), Senior Secured Loans, Due 11/3/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SportsOperatingHoldingsIiLlcMember		mcip:SportsOperatingHoldingsIiLlcMember
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC (Revolver), Senior Secured Loans, Due 11/3/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SportsOperatingHoldingsIiLlcMember		mcip:SportsOperatingHoldingsIiLlcMember
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC, Senior Secured Loans, Due 11/3/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SportsOperatingHoldingsIiLlcMember		mcip:SportsOperatingHoldingsIiLlcMember
Investment, Identifier [Axis]: Star Compliance Mid Co, L L C, ( Revolver), Senior Secured Loans, due 1/12/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:StarComplianceMidCoLLCMember		mcip:StarComplianceMidCoLLCMember
Investment, Identifier [Axis]: Star Compliance Mid Co, L L C, Senior Secured Loans, One, due 1/12/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:StarComplianceMidCoLLCMember		mcip:StarComplianceMidCoLLCMember
Investment, Identifier [Axis]: Star Compliance Mid Co, L L C, Senior Secured Loans, Two, due 1/12/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:StarComplianceMidCoLLCMember		mcip:StarComplianceMidCoLLCMember
Investment, Identifier [Axis]: StormTrap, LLC, Delayed Draw, , Unitranche Loans, Due 3/24/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:StormTrapLLCMember		mcip:StormTrapLLCMember
Investment, Identifier [Axis]: StormTrap, LLC, Equity Securities, Class A common units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:StormTrapLLCMember		mcip:StormTrapLLCMember
Investment, Identifier [Axis]: StormTrap, LLC, Equity Securities, Class A preferred units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:StormTrapLLCMember
Investment, Identifier [Axis]: StormTrap, LLC, Unitranche Loans, Due 3/24/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:StormTrapLLCMember		mcip:StormTrapLLCMember
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Senior Secured Loans, One, Due 8/31/2023
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:StreamlandMediaMidcoLlcMember		mcip:StreamlandMediaMidcoLlcMember
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Senior Secured Loans, Two, Due 8/31/2023
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:StreamlandMediaMidcoLlcMember		mcip:StreamlandMediaMidcoLlcMember
Investment, Identifier [Axis]: Sundance Group Holdings, Inc, Senior Secured Loans, One, Due 7/2/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SundanceGroupHoldingsIncMember		mcip:SundanceGroupHoldingsIncMember
Investment, Identifier [Axis]: Sundance Group Holdings, Inc, Senior Secured Loans, Three, Due 7/2/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SundanceGroupHoldingsIncMember		mcip:SundanceGroupHoldingsIncMember
Investment, Identifier [Axis]: Sundance Group Holdings, Inc, Senior Secured Loans, Two, Due 7/2/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SundanceGroupHoldingsIncMember		mcip:SundanceGroupHoldingsIncMember
Investment, Identifier [Axis]: Sundance Group Holdings, Inc. (Revolver), Senior Secured Loans, Due 7/2/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:SundanceGroupHoldingsIncMember		mcip:SundanceGroupHoldingsIncMember
Investment, Identifier [Axis]: T C F I I I O W L Buyer L L C, Senior Secured Loans, One, due 4/17/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:TCFIIIOWLBuyerLLCMember
Investment, Identifier [Axis]: T C F I I I O W L Buyer L L C, Senior Secured Loans, Three, due 4/17/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:TCFIIIOWLBuyerLLCMember
Investment, Identifier [Axis]: T C F I I I O W L Buyer L L C, Senior Secured Loans, Two, due 4/17/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:TCFIIIOWLBuyerLLCMember
Investment, Identifier [Axis]: TCFIII Owl Buyer LLC, Senior Secured Loans, One, Due 4/17/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:TCFIIIOWLBuyerLLCMember
Investment, Identifier [Axis]: TCFIII Owl Buyer LLC, Senior Secured Loans, Three, Due 4/17/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:TCFIIIOWLBuyerLLCMember
Investment, Identifier [Axis]: TCFIII Owl Buyer LLC, Senior Secured Loans, Two, Due 4/17/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:TCFIIIOWLBuyerLLCMember
Investment, Identifier [Axis]: TEAM Public Choices, LLC, Senior Secured Loans, Due 12/17/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:TEAMPublicChoicesLLCMember		mcip:TEAMPublicChoicesLLCMember
Investment, Identifier [Axis]: The GEO Group, Inc, Senior Secured Loans, Due 3/23/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:GeoGroupIncMember
Investment, Identifier [Axis]: The Kyjen Company, L L C ( Revolver), Senior Secured Loans, due 4/3/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:TheKyjenCompanyLLCMember
Investment, Identifier [Axis]: The Kyjen Company, L L C, Senior SEcured Loans, Two, Due 4/3/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:TheKyjenCompanyLLCMember
Investment, Identifier [Axis]: The Kyjen Company, L L C, Senior Secured Loans, due 4/3/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:TheKyjenCompanyLLCMember
Investment, Identifier [Axis]: The Kyjen Company, LLC (Revolver), Senior Secured Loans, Due 4/3/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:TheKyjenCompanyLLCMember
Investment, Identifier [Axis]: The Kyjen Company, LLC, Senior Secured Loans, One, Due 4/3/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:TheKyjenCompanyLLCMember
Investment, Identifier [Axis]: The Kyjen Company, LLC, Senior Secured Loans, Two, Due 4/3/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:TheKyjenCompanyLLCMember
Investment, Identifier [Axis]: Thrasio, L L C, Senior Secured Loans, due 12/18/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ThrasioLLCMember
Investment, Identifier [Axis]: Thrasio, LLC, Senior Secured Loans, Due 12/18/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:ThrasioLLCMember
Investment, Identifier [Axis]: Thryv, Inc, Senior Secured Loans, Due 2/27/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ThryvIncMember
Investment, Identifier [Axis]: Thryv, Inc, Senior Secured Loans, Due 3/1/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:ThryvIncMember
Investment, Identifier [Axis]: TigerConnect, Inc, Senior Secured Loans, Due 2/16/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:TigerConnectIncMember		mcip:TigerConnectIncMember
Investment, Identifier [Axis]: TigerConnect, Inc. (Delayed Draw), Senior Secured Loans, Due 2/16/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:TigerConnectIncMember		mcip:TigerConnectIncMember
Investment, Identifier [Axis]: TigerConnect, Inc. (Revolver), Senior Secured Loans, Due 2/16/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:TigerConnectIncMember		mcip:TigerConnectIncMember
Investment, Identifier [Axis]: Transact Holdings Inc, Senior Secured Loans, Due 4/30/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:TransactHoldingsIncMember		mcip:TransactHoldingsIncMember
Investment, Identifier [Axis]: Trilon Group, LLC, Senior Secured Loans, One, Due 5/25/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:TrilonGroupLlcMember		mcip:TrilonGroupLlcMember
Investment, Identifier [Axis]: Trilon Group, LLC, Senior Secured Loans, Two, Due 5/25/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:TrilonGroupLlcMember		mcip:TrilonGroupLlcMember
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans, Five, due 12/14/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:Truck-LiteCo.LLCMember		mcip:Truck-LiteCo.LLCMember
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans, Four, due 12/14/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:Truck-LiteCo.LLCMember		mcip:Truck-LiteCo.LLCMember
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans, One, due 12/14/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:Truck-LiteCo.LLCMember		mcip:Truck-LiteCo.LLCMember
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans, Six, due 12/14/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:Truck-LiteCo.LLCMember		mcip:Truck-LiteCo.LLCMember
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans, Three, due 12/14/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:Truck-LiteCo.LLCMember		mcip:Truck-LiteCo.LLCMember
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans, Two, due 12/14/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:Truck-LiteCo.LLCMember		mcip:Truck-LiteCo.LLCMember
Investment, Identifier [Axis]: Unanet, Inc, Senior Secured Loans, Due 12/8/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:UnanetIncMember		mcip:UnanetIncMember
Investment, Identifier [Axis]: Unanet, Inc. (Delayed Draw), Senior Secured Loans, Due 12/8/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:UnanetIncMember
Investment, Identifier [Axis]: Unanet, Inc. (Revolver), Senior Secured Loans, Due 12/8/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:UnanetIncMember		mcip:UnanetIncMember
Investment, Identifier [Axis]: Unanet, Inc., Equity Securities, Common Stock
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:UnanetIncMember		mcip:UnanetIncMember
Investment, Identifier [Axis]: VB E1, LLC, Unitranche Loans, Due 11/18/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:VBE1LLCMember		mcip:VBE1LLCMember
Investment, Identifier [Axis]: Verdantas LLC (Delayed Draw), Senior Secured Loans, Due 7/1/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:VerdantasLlcMember
Investment, Identifier [Axis]: Verdantas LLC, Senior Secured Loans, Due 7/1/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:VerdantasLlcMember
Investment, Identifier [Axis]: Viad Corp, Senior Loans, Due 7/30/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ViadCorpMember		mcip:ViadCorpMember
Investment, Identifier [Axis]: Vice Group Holding Inc, Senior Secured Loans, Four, Due 5/12/2023
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ViceGroupHoldingIncMember		mcip:ViceGroupHoldingIncMember
Investment, Identifier [Axis]: Vice Group Holding Inc, Senior Secured Loans, One, Due 5/12/2023
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ViceGroupHoldingIncMember		mcip:ViceGroupHoldingIncMember
Investment, Identifier [Axis]: Vice Group Holding Inc, Senior Secured Loans, Three, Due 5/12/2023
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ViceGroupHoldingIncMember		mcip:ViceGroupHoldingIncMember
Investment, Identifier [Axis]: Vice Group Holding Inc, Senior Secured Loans, Two, Due 5/12/2023
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ViceGroupHoldingIncMember		mcip:ViceGroupHoldingIncMember
Investment, Identifier [Axis]: Vice Group Holding Inc. (Delayed Draw), Senior Secured Loans, Due 5/12/2023
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:ViceGroupHoldingIncMember
Investment, Identifier [Axis]: Volt Bidco, Inc, Equity Securities, Common stock
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:VoltBidcoIncMember		mcip:VoltBidcoIncMember
Investment, Identifier [Axis]: Volt Bidco, Inc, Senior Secured Loans, Due 8/11/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:VoltBidcoIncMember		mcip:VoltBidcoIncMember
Investment, Identifier [Axis]: Volt Bidco, Inc. (Delayed Draw), Senior Secured Loans, Due 8/11/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:VoltBidcoIncMember		mcip:VoltBidcoIncMember
Investment, Identifier [Axis]: Volt Bidco, Inc. (Revolver), Senior Secured Loans, Due 8/11/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:VoltBidcoIncMember		mcip:VoltBidcoIncMember
Investment, Identifier [Axis]: W3 Monroe RE Debt LLC (Delayed Draw), Senior Secured Loans, Due 2/4/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:W3MonroeREDebtLLCMember
Investment, Identifier [Axis]: W3 Monroe RE Debt LLC, Senior Secured Loans, Due 2/4/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:W3MonroeREDebtLLCMember		mcip:W3MonroeREDebtLLCMember
Investment, Identifier [Axis]: Watchguard Technologies, Inc, Senior Secured Loans, Due 6/29/2029
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:WatchguardTechnologiesIncMember		mcip:UnanetIncMember
Investment, Identifier [Axis]: WebPT, Inc, Senior Secured Loans, Due 1/18/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:WebptIncMember		mcip:WebptIncMember
Investment, Identifier [Axis]: WebPT, Inc. (Revolver), Senior Secured Loans, Due 1/18/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:WebptIncMember		mcip:WebptIncMember
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc, Senior Secured Loans, Due 6/2/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:WhistlerParentHoldingsIIIIncMember		mcip:WhistlerParentHoldingsIIIIncMember
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc. (Delayed Draw), Senior Secured Loans, Due 6/2/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:WhistlerParentHoldingsIIIIncMember		mcip:WhistlerParentHoldingsIIIIncMember
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc. (Revolver), Senior Secured Loans, Due 6/2/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:WhistlerParentHoldingsIIIIncMember		mcip:WhistlerParentHoldingsIIIIncMember
Investment, Identifier [Axis]: Witkoff/ Monroe 700 J V L L C ( Delayed Draw), Junior Secured Loans, due 7/2/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]			Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]			mcip:WitkoffMonroe700JVLLCMember
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Delayed Draw, Junior Secured Loans, Due 7/2/2026
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:WitkoffMonroe700JVLLCMember
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Equity Securities, Preferred units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:WitkoffMonroe700JVLLCMember		mcip:WitkoffMonroe700JVLLCMember
Investment, Identifier [Axis]: XanEdu Publishing, Inc, Senior Secured Loans, One, Due 1/28/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:XanEduPublishingIncMember		mcip:XanEduPublishingIncMember
Investment, Identifier [Axis]: XanEdu Publishing, Inc, Senior Secured Loans, Two, Due 1/28/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:XanEduPublishingIncMember		mcip:XanEduPublishingIncMember
Investment, Identifier [Axis]: XanEdu Publishing, Inc. (Revolver), Senior Secured Loans, Due 1/28/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:XanEduPublishingIncMember		mcip:XanEduPublishingIncMember
Investment, Identifier [Axis]: XanEdu Publishing, Inc., Equity Securites, Class A units
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:XanEduPublishingIncMember		mcip:XanEduPublishingIncMember
Investment, Identifier [Axis]: YS WH4 LLC (Revolver), Senior Secured Loans, Due 11/20/2025
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:W3MonroeREDebtLLCMember		mcip:YSWH4LLCRevolverMember
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc, Senior Secured Loans, One, Due 9/21/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EcmarketInc.AndConexiomUsIncMember		mcip:EcmarketInc.AndConexiomUsIncMember
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc, Senior Secured Loans, Two, Due 9/21/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EcmarketInc.AndConexiomUsIncMember		mcip:EcmarketInc.AndConexiomUsIncMember
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc. (Revolver), Senior Secured Loans, Due 9/21/2027
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EcmarketInc.AndConexiomUsIncMember		mcip:EcmarketInc.AndConexiomUsIncMember
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc., Equity Securites, Preferred shares)
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:EcmarketInc.AndConexiomUsIncMember		mcip:EcmarketInc.AndConexiomUsIncMember
Investment, Identifier [Axis]: iCIMS, Inc, Senior Secured Loans, Due 8/18/2028
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]	Non-controlled/non-affiliate company investments		Non-controlled/non-affiliate company investments
Investment, Issuer Name [Extensible Enumeration]	mcip:IcimsIncMember		mcip:IcimsIncMember
Non-controlled affiliate company investments
Investments in and Advances to Affiliates [Line Items]
Investment, Issuer Affiliation [Extensible Enumeration]		Non-controlled affiliate company investments
Interest income	$ 583	$ 164