Document and Entity Information Document Type Document Quarterly Report Document Period End Date Document Transition Report Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, City or Town Entity Address State Or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Ex Transition Period Entity Shell Company Entity Common Stock, Shares Outstanding Entity Central Index Key Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus Amendment Flag STATEMENT OF ASSETS AND LIABILITIES Statement [Table] Consolidated Entities [Axis] Consolidated Entities [Domain] Represents the information pertaining to Monroe Capital Asset-Backed Finance Company, LP Series II. Monroe Capital Asset-Backed Finance Company, LP Series II [Member] Series II Series II Statement [Line Items] Assets [Abstract] Assets Cash and Cash Equivalent Cash and cash equivalents Deferred Offering Costs Deferred offering expenses Other Receivables Due from Operating Manager Other Receivable, after Allowance for Credit Loss, Related Party [Extensible Enumeration] Assets Total assets Liabilities [Abstract] Liabilities Amount of offering expenses payable to the Operating Manager for offering costs paid on behalf of the registrant pursuant to an expense support arrangement. Offering Expenses Payable Offering expenses payable Amount of organizational expenses payable to the Operating Manager for organizational costs paid on behalf of the registrant pursuant to an expense support arrangement. Organizational Expenses Payable Organizational expenses payable Liabilities Total liabilities Commitments and Contingencies Commitments and contingencies (See Note 4) Net Assets Total Net Assets No definition available. Net Asset Value Per Share [Abstract] NET ASSET VALUE PER SHARE Common Stock, Shares, Outstanding Shares outstanding Net Asset Value Per Share Net asset value per share (in dollars per share) STATEMENTS OF OPERATIONS Interest and Dividend Income, Operating [Abstract] Investment income: Interest Income, Operating Interest income Gross Investment Income, Operating Total investment income Operating Expenses [Abstract] Expenses: Organizational Cost, Expense Organizational expenses Noninterest Expense Total expenses Amounts paid or reimbursed by the Operating Manager on behalf of the registrant pursuant to an expense support agreement, recognized as a reduction of related expenses. Expense Support From Operating Manager Expense support from Operating Manager Operating Expenses Net expenses Operating Income (Loss) Net investment income (loss) Net increase (decrease) in net assets resulting from operations STATEMENTS OF CHANGES IN NET ASSETS Increase (Decrease) in Stockholders' Equity [Roll Forward] STATEMENTS OF CHANGES IN NET ASSETS Equity, Attributable to Parent Net assets at end of period Net assets at beginning of period Stock Issued During Period, Value, New Issues Proceeds from issuance of shares STATEMENT OF CASH FLOWS Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Cash flows from operating activities: Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net increase (decrease) in net assets resulting from operations Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Amount of increase (decrease) in deferred offering expenses. Increase (Decrease) Deferred Offering Expenses Deferred offering expenses Amount of increase (decrease) in due from operations manager. Increase (Decrease) Due From Operations Manager Due from Operating Manager Amount of increase (decrease) in due from offering expenses payable. Increase (Decrease) Offering Expenses Payable Offering expenses payable Amount of increase (decrease) in due from organizational expenses payable. Increase (Decrease) Organizational Expenses Payable Organizational expenses payable Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Net cash provided by (used in) operating activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Cash flows from financing activities: Proceeds from Issuance of Common Stock Proceeds from issuance of shares Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Net cash provided by (used in) financing activities Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Net increase (decrease) in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Cash and cash equivalents, end of period Cash and cash equivalents, beginning of period Organization and Principal Business Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Organization and Principal Business Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Agreements and Related Party Transactions Related Party Transactions Disclosure [Text Block] Agreements and Related Party Transactions Commitments and Contingencies. Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Subsequent Events Subsequent Events [Text Block] Subsequent Events Basis of Accounting, Policy [Policy Text Block] Basis of Accounting Disclosure of accounting policy for presentation of financial statement. Basis of Presentation, Policy [Policy Text Block] Basis of Presentation Consolidation, Policy [Policy Text Block] Basis of Consolidation Use of Estimates, Policy [Policy Text Block] Use of Estimates Cash and Cash Equivalents, Policy [Policy Text Block] Cash and Cash Equivalents Disclosure of accounting policy for organizational and offering expenses. Organizational And Offering Expenses, Policy [Policy Text Block] Organizational and Offering Expenses Fair Value Measurement, Policy [Policy Text Block] Investments, At Fair Value Income Tax, Policy [Policy Text Block] Income Taxes Disclosure of accounting policy for calculation of net asset value per share. Net Asset Value Per Share, Policy [Policy Text Block] Calculation of NAV New Accounting Pronouncements, Policy [Policy Text Block] Recent Accounting Pronouncements Disclosure of information about organization, consolidation and presentation of financial statement. Organization, Consolidation and Presentation of Financial Statements [Table] Organization, Consolidation and Presentation of Financial Statements [Table] Class of Stock [Axis] Class of Stock [Domain] Represents information pertaining to common Class E shares. Common Class E [Member] Class E shares Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Organization, Consolidation and Presentation of Financial Statements [Line Items] Organization and Principal Business Number of registered series of limited partnership interests established by the partnership. Number Of Registered Series of Limited Partnership Interests Number of registered series Stock Issued During Period, Shares, New Issues Stock issued Shares Issued, Price Per Share Share price Disclosure of information about accounting policies. Accounting Policies [Table] Accounting Policies [Table] Represents information pertaining to Monroe Capital Asset-Backed Finance Company, LP Series I. Monroe Capital Asset-Backed Finance Company, LP Series I [Member] Series I Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Accounting Policies [Line Items] Summary of Significant Accounting Policies Income Tax Expense (Benefit) Income tax expense Related Party Transaction [Table] Represents information pertaining to Standard Fee Class shares. Standard Fee Class [Member] Standard fee class shares Represents information pertaining to Founder Share Class II Shares. Founder Share Class II [Member] Founder share class II shares Represents information pertaining to Founder Share Class III Shares. Founder Share Class III [Member] Founder share class III shares Represents information pertaining to Founder Share Class III and Class E-W Shares. Founder Share Class III And Class E-W [Member] Founder share class III and class E-W shares Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent event Related Party Transaction [Line Items] Agreements and Related Party Transactions Management and Service Fees, Base Rate Management fees, rate Management Fee Expense Management fee Management and Service Fees, Incentive Rate Performance fees, rate The rate of return that shareholders of a specified share class must receive before the operating manager becomes entitled to participate in profits through a performance fee arrangement. Performance Fee Hurdle Rate Percentage Hurdle rate The percentage of excess profits allocated to the investment manager for purposes of calculating performance fees after satisfaction of applicable hurdle rate, loss carryforward, high-water mark, and catch-up provisions. Performance Fees Excess Profit , Allocation, Percentage Excess profit, allocation percentage Incentive Fee Expense Performance fees Represents the maximum annualized percentage of net assets permitted under the expense support and conditional reimbursement agreement. Related Party Transaction, Specified Expense Reimbursement, Maximum Percentage Maximum expense support reimbursement percentage Represents the recovery period during which expense support advances remain eligible for reimbursement. Related party Transaction, Expense Support Reimbursement Eligibility Period Expense support reimbursement period Amount of organizational expenses that the Operating Manager has elected to bear or support on behalf of the Partnership during the reporting period, regardless of whether such expenses have been paid directly to vendors or remain unpaid. Organizational Expenses Supported by Operating Manager Organizational expenses Amount of offering expenses that the Operating Manager has elected to bear or support on behalf of the Partnership during the reporting period, regardless of payment status. Offering Expenses Supported by Operating Manager Offering expenses Amount of organizational expenses paid directly to, or settled directly with, third-party vendors by the Operating Manager. Organizational Expenses Paid Directly by Operating Manager Payment of organizational expenses Amount of offering expenses paid directly to, or settled directly with, third-party vendors by the Operating Manager. Offering Expenses Paid Directly by Operating Manager Payment of offering expenses