Statistical Measurement [Domain] Statistical Measurement [Domain] Investment transactions Investment, Policy [Policy Text Block] Market interest rate Measurement Input, Market Interest Rate [Member] Measurement Input, Market Interest Rate O 2025 M6 Dividends O 2025 M6 Dividends [Member] O 2025 M6 Dividends Award Timing Predetermined Award Timing Predetermined [Flag] Adviser Revolver Adviser Revolver [Member] Adviser Revolver Related Party Transaction [Axis] Related Party Transaction [Axis] Fundings of (proceeds from) revolving loans, net Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances (Settlements) Of Undrawn Portion Of Revolving Loans Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances (Settlements) Of Undrawn Portion Of Revolving Loans Receivable for investments Increase (Decrease) in Receivable for Investment Sold Asset Class [Axis] Asset Class [Axis] Dividend income received in cash Dividend Income, Operating, Paid in Cash Entity File Number Paid in Capital in Excess of Par Additional Paid-in Capital [Member] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Net gain (loss) on investment transactions Gain (Loss), Investment, Derivative, and Foreign Currency Transaction Price Change, Operating, before Tax Tabular List, Table Tabular List [Table Text Block] Open Forward Foreign Currency Contract, Identifier [Axis] Open Forward Foreign Currency Contract, Identifier [Axis] Schedule of Dividend Declarations and Distributions Dividends Declared [Table Text Block] Recent accounting updates New Accounting Pronouncements, Policy [Policy Text Block] Debt Investments Debt Securities [Member] Sweden SWEDEN Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Total return based on net asset value per share (as a percent) Investment Company, Total Return, Market Value Basic earnings (losses) per common share (Note 11) (in dollars per share) Basic earnings per share (in dollars per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] Related Party Transactions Related Party Transactions Disclosure [Text Block] Subscriptions Investment Company, Subscribed Capital Investment Company, Subscribed Capital Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accounts payable and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Investment Advisory Agreement, Subordinated Liquidation Incentive Fee Base Investment Advisory Agreement, Subordinated Liquidation Incentive Fee Base [Member] Investment Advisory Agreement, Subordinated Liquidation Incentive Fee Base Specialty Retail Specialty Retail Sector [Member] Specialty Retail Sector Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities: Adjustments To Reconcile Net Increase (Decrease) In Net Assets Resulting From Operations To Net Cash Provided By (Used In) Operating Activities [Abstract] Adjustments To Reconcile Net Increase (Decrease) In Net Assets Resulting From Operations To Net Cash Provided By (Used In) Operating Activities Collateral (Received) Pledged Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset Interest receivable Increase (Decrease) in Accrued Interest Receivable, Net GGP Class B-P, LLC GGP Class B-P, LLC [Member] GGP Class B-P, LLC Total investment owned, at cost and money market funds, at carrying value Investment Owned, At Cost And Money Market Funds, At Carrying Value Investment Owned, At Cost And Money Market Funds, At Carrying Value EBITDA multiples Measurement Input, EBITDA Multiple [Member] Distributions to stockholders: Investment Company, Dividend Distribution [Abstract] Measurement Input Type [Domain] Measurement Input Type [Domain] Accretion of discounts and amortization of premiums Gross Investment Income, Operating [Member] Gross Investment Income, Operating Adjustment to Compensation, Amount Adjustment to Compensation Amount Concentration risk, percentage (as a percent) Concentration Risk, Percentage Other assets Increase (Decrease) in Other Operating Assets Consolidation Consolidation, Policy [Policy Text Block] Currency to be purchased Derivative Asset, Notional Amount Accrued trustee fees Accrued Trustee Fees Accrued Trustee Fees Employee Stock Option Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Ratio of incentive fees to average net assets Investment Company, Incentive Fee to Average Net Assets Total Net Assets Beginning balance Ending balance Net assets at end of period Equity, Attributable to Parent Commercial Services & Supplies Commercial Services & Supplies Commercial Services & Supplies Sector [Member] Commercial Services & Supplies Sector Insider Trading Policies and Procedures [Line Items] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Investment, Adviser Investment, Adviser [Member] Investment, Adviser Assets, at fair value: Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Issuance of common stock (in shares) Shares issued for capital drawdowns (in shares) Stock Issued During Period, Shares, New Issues Total Liabilities and Total Net Assets Liabilities and Equity Foreign currency translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Investment company, excess expense reimbursable Investment Company, Reimbursable Excess Expense Investments, at Fair Value Investments, At Fair Value [Member] Investments, At Fair Value Money market funds Cash and Cash Equivalents, Fair Value Disclosure Maximum Maximum [Member] Offsetting Derivative Assets [Abstract] Offsetting Derivative Assets [Abstract] Accrued trustee fees Increase (Decrease) In Accrued Trustee Fees Increase (Decrease) In Accrued Trustee Fees Accounting Policies [Abstract] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Investment, Identifier [Axis] Investment, Identifier [Axis] Cash Cash Cash and Cash Equivalent, Not Held in Foreign Currency Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Non-controlled/non-affiliate company investments at fair value (amortized cost of $397,986 and $385,232, respectively) Fair Value Fair value Investment Owned, Fair Value Household Products Household Products Household Products Sector [Member] Household Products Sector Diversified Financial Services Diversified Financial Services Sector [Member] Diversified Financial Services Sector Per Common Share Data Per Common Share Data [Abstract] Per Common Share Data Second lien Debt Securities, Second Lien [Member] Debt Securities, Second Lien Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Net realized gain (loss) on investment transactions Net realized gain (loss) on investment transactions Realized Gain (Loss), Investment, Derivative, and Foreign Currency Transaction Price Change, Operating, before Tax Liabilities Liabilities [Abstract] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Payable for investments purchased Payable, Investment, Purchase Entity Shell Company Southeast US Southeast Region [Member] Money market funds, percent of net assets Money Market Funds, Percent Of Net Assets Money Market Funds, Percent Of Net Assets Average debt outstanding Long-Term Debt, Average Amount Outstanding Southwest US Southwest Region [Member] Accounts payable and other liabilities Accounts Payable and Other Accrued Liabilities Schedule of Long-Term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Statement of Stockholders' Equity [Abstract] Investment Advisory Agreement, Capital Gain Incentive Fee Base Investment Advisory Agreement, Capital Gain Incentive Fee Base [Member] Investment Advisory Agreement, Capital Gain Incentive Fee Base Common stock, shareholders (in shares) Related Party Transaction, Agreement To Purchase Common Stock, Share Related Party Transaction, Agreement To Purchase Common Stock, Share Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount Premium prepayment fees Investment Company, Premium Prepayment Fees Investment Company, Premium Prepayment Fees Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Interest expense Interest Expense, Operating Fair value, asset, recurring basis, unobservable input reconciliation, gain (loss), statement of income or comprehensive income [Extensible Enumeration] Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Measurement Input Type [Axis] Measurement Input Type [Axis] Contributions Investment Company, Contributed Capital Investment Company, Contributed Capital Name Measure Name Fundings of investments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances Base management fee Management Fee Expense Industry Sector [Domain] Industry Sector [Domain] Non-cash dividends Dividend Income, Operating, Non-Cash Dividend Income, Operating, Non-Cash Document Fiscal Period Focus Money market funds, fair value Money Market Funds, Fair Value Disclosure Money Market Funds, Fair Value Disclosure Healthcare Technology Healthcare Technology Sector [Member] Healthcare Technology Sector Award Timing Method Award Timing Method [Text Block] Asset coverage ratio per unit (in dollars per share) Investment Company, Senior Security, Indebtedness, Asset Coverage Ratio Per Unit Investment Company, Senior Security, Indebtedness, Asset Coverage Ratio Per Unit Revenue multiples Measurement Input, Revenue Multiple [Member] Award Type Award Type [Axis] Outstanding borrowings Long-Term Debt Legal Entity [Axis] Total Assets Assets Interest and fee income Interest And Fee Income, Operating, Paid In Cash Interest And Fee Income, Operating, Paid In Cash Capitalized PIK Dividend Income, Operating, Paid in Kind Geographical [Domain] Geographical [Domain] Industry Concentration Risk Industry Concentration Risk [Member] Industry Concentration Risk Income taxes Income Tax, Policy [Policy Text Block] Entity Address, City or Town Open Forward Foreign Currency Contract [Table] Open Forward Foreign Currency Contract [Table] Cash flows from operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Schedule of Outstanding Forward Currency Contracts Open Forward Foreign Currency Contract [Table Text Block] Effect of foreign currency exchange rates Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Receivable for investments Receivable, Investment, Sale Concentration Risk Type [Axis] Concentration Risk Type [Axis] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Statement of Income Location, Balance [Domain] Statement of Income Location, Balance [Domain] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Loan origination fees received Amortization of Deferred Loan Origination Fees, Net Entity Emerging Growth Company Entity Common Stock, Shares Outstanding Investment owned, balance, principal amount Investment Owned, Balance, Principal Amount Collateral pledged for derivatives Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset Base management fee waived (Note 4) Base management fee waived Investment Company, Management Fee, Contractual Fee Waived Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Related Party Related Party [Member] Total investment owned, at fair value and money market funds, at carrying value Investment Owned, At Fair Value And Money Market Funds, At Carrying Value Investment Owned, At Fair Value And Money Market Funds, At Carrying Value Number of common shares outstanding (in shares) Common stock, shares outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Shares Outstanding (in shares) Common Stock, Shares, Outstanding O 2025 M3 Dividends O 2025 M3 Dividends [Member] O 2025 M3 Dividends PEO PEO [Member] Net gain (loss) on investment transactions Gain (Loss), Investment and Derivative, Operating, and Foreign Currency Transaction, after Tax [Abstract] O 2026 M1 Dividends O 2026 M1 Dividends [Member] O 2026 M1 Dividends Uncalled capital commitment, amount Investment Company, Uncalled Capital Commitments Investment Company, Uncalled Capital Commitments Translation of assets and liabilities in foreign currencies Net change in unrealized (appreciation) depreciation on translation of assets and liabilities in foreign currencies Unrealized Gain (Loss), Foreign Currency Transaction, before Tax Accrual (reversal) of capital gain incentive fee Increase (Decrease) in Incentive Fee Payable, Capital-Gain-Based Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Accounts payable and other liabilities Accounts Payable and Accrued Liabilities Distributable Earnings (Losses) Retained Earnings [Member] Asset Concentration Risk Asset Concentration Risk [Member] Asset Concentration Risk Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Share-Based Payment Arrangement [Abstract] Cash, cash equivalents, and foreign currencies, beginning of period Cash, cash equivalents, and foreign currencies, end of period Total cash and cash equivalents and foreign currencies shown in the Consolidated Statements of Cash Flows Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Unrealized appreciation on forward currency contracts Net amounts presented in the Consolidated Statements of Financial Condition Derivative Asset Total increase (decrease) common stock, outstanding value Stockholders' Equity, Period Increase (Decrease) Other assets Other Assets Fair value, beginning of period Fair value, end of period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Interest payable Increase (Decrease) in Interest Payable, Net Fundings of investments Payment for Purchase, Investment, Operating Activity Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Ratio of total expenses (without incentive fees) to average net assets Investment Company, Total Expenses Before Incentive Fees To Average Net Assets Investment Company, Total Expenses Before Incentive Fees To Average Net Assets Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Total return based on average net asset value Investment Company, Total Return Net investment income Net Investment Income Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Total liabilities, at fair value: Liabilities, Fair Value Disclosure Organization, Consolidation and Presentation of Financial Statements [Abstract] Deferred offering costs Stockholders' Equity, Policy [Policy Text Block] Total Dividends Declared Investment Company, Dividend Distribution Net change in unrealized appreciation (depreciation) from: Unrealized Gain (Loss), Investment, Derivative, and Foreign Currency Transaction Price Change, Operating, before Tax [Abstract] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] City Area Code Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Investments Investment [Text Block] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Expenses Paid Expenses Paid [Member] Expenses Paid Chemicals Chemicals Chemicals Sector [Member] Commitments and Contingencies Disclosure [Abstract] Borrowings on debt Proceeds from Long-Term Lines of Credit Related party transaction, share transferred (in shares) Related Party Transaction, Share Transferred Related Party Transaction, Share Transferred O 2025 M2 Dividends O 2025 M2 Dividends [Member] O 2025 M2 Dividends General and administrative expenses General and Administrative Expense Net expenses Investment Company, Expense, after Reduction of Fee Waiver and Reimbursement Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Net cash provided by (used in) operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Interest receivable Interest Receivable Distributions from distributable earnings (losses) Investment Company, Dividend Distribution, From Distributable Earnings (Losses) Investment Company, Dividend Distribution, From Distributable Earnings (Losses) Related Party Transactions [Abstract] Aerospace & Defense Aerospace & Defense Sector [Member] Aerospace & Defense Sector Incentive fee Incentive Fee Expense Proceeds from principal payments and sales of portfolio investments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Subsequent Event Subsequent Event [Member] Incentive fee Incentive Fee Expense, Income-Based Investment, Administrator Investment, Administrator [Member] Investment, Administrator Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Mid-Atlantic US Mid-Atlantic Region [Member] US Mid-Atlantic Region Investment, interest rate, paid in kind Investment, Interest Rate, Paid in Kind Common stock, shares, issued, dividend reinvestment plan (in shares) Common Stock, Shares, Issued, Dividend Reinvestment Plan Common Stock, Shares, Issued, Dividend Reinvestment Plan Media Media Sector [Member] Media Sector Unrealized depreciation Gross Amount of Recognized (Liabilities) Derivative Liability, Subject to Master Netting Arrangement, before Offset Total investment owned and money market funds, percent of net assets Investment Owned And Money Market Funds, Percent of Net Assets Investment Owned And Money Market Funds, Percent of Net Assets Minimum asset coverage ratio required (as a percent) Investment Company, Senior Security, Indebtedness, Asset Coverage Ratio, Minimum Threshold Investment Company, Senior Security, Indebtedness, Asset Coverage Ratio, Minimum Threshold Schedule of Investments [Abstract] Equity Components [Axis] Equity Components [Axis] Entity Ex Transition Period O 2026 M5 Dividends O 2026 M5 Dividends [Member] O 2026 M5 Dividends Life Sciences Tools & Services Life Sciences Tools & Services Life Sciences Tools & Services Sector [Member] Life Sciences Tools & Services Sector Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Number of reportable segments Number of Reportable Segments Schedule of Financial Highlights Investment Company, Financial Highlights [Table Text Block] Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Other Performance Measure, Amount Other Performance Measure, Amount Entity Address, State or Province Ratio of net investment income - after tax to average net assets Investment Company, Investment Income (Loss) Ratio Fair value measurements Fair Value Measurement, Policy [Policy Text Block] Related Party [Domain] Related and Nonrelated Parties [Domain] Net change in cash, cash equivalents, and foreign currencies Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation One stop One stop loans Debt Securities, One Stop Loan [Member] Debt Securities, One Stop Loan Machinery Machinery Sector [Member] Machinery Sector Investment Company, Net Assets [Roll Forward] Investment Company, Net Assets [Roll Forward] Derivative Instrument [Axis] Derivative Instrument [Axis] Individual: Individual [Axis] Fair value of financial instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Liabilities, at fair value: Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Subscription Agreement Subscription Agreement [Member] Subscription Agreement Distributions paid Payments of Ordinary Dividends, Common Stock Entity [Domain] Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Air Freight & Logistics Air Freight & Logistics Sector [Member] Air Freight & Logistics Sector GGP Class B-P, LLC. GGP Class B-P, LLC GGP Class B-P, LLC. GGP Class B-P, LLC [Member] GGP Class B-P, LLC. GGP Class B-P, LLC Document Fiscal Year Focus Basis of presentation Basis of Accounting, Policy [Policy Text Block] Valuation Technique, Yield Analysis And Price Of Comparable Business Valuation Technique, Yield Analysis And Price Of Comparable Business [Member] Valuation Technique, Yield Analysis And Price Of Comparable Business Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Dividends and distributions Investment Company, Distribution [Policy Text Block] Entity Interactive Data Current Investment Company, Distribution to Shareholders, Per Share, Threshold Investment Company, Distribution to Shareholders, Per Share, Threshold Investment Company, Distribution to Shareholders, Per Share, Threshold Equity [Abstract] Electrical Equipment Electrical Equipment Sector [Member] Electrical Equipment Sector West US West Region [Member] Derivative instruments Derivatives, Policy [Policy Text Block] Amortized cost Amortized Cost Investment Owned, Cost Minimum notice period (in days) Issuance Of Stock, Subscription Agreements, Minimum Notice Period Issuance Of Stock, Subscription Agreements, Minimum Notice Period Forward currency contracts Net realized (gain) loss on forward currency contracts Realized gain (loss) on forward currency contracts recognized in income Gain (Loss) on Sale of Derivatives O 2026 M6 Dividends O 2026 M6 Dividends [Member] O 2026 M6 Dividends Investment company, management and service fees, base rate waiver, percentage of base management fee payable (as a percent) Ratio of management fee waiver to average net assets Investment Company, Management Fee Waiver To Average Net Assets Investment Company, Management Fee Waiver To Average Net Assets Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Organization costs and professional fees Organizational Cost, Expense Weighted Average Weighted Average [Member] Total contributed capital to total capital subscription, ratio (as a percent) Investment Company, Contributed Capital to Subscribed Capital Ratio Investment Company, Contributed Capital to Subscribed Capital Ratio Diversified Consumer Services Diversified Consumer Services Sector [Member] Diversified Consumer Services Sector Principal Investment Owned, Face Amount Net asset value per common share (in dollars per share) NAV per share (in dollars per share) Net asset value at beginning of period (in dollars per share) Net asset value at end of period (in dollars per share) Qualifying Asset Type [Axis] Qualifying Asset Type [Axis] Qualifying Asset Type Entity Central Index Key PEO Name PEO Name Total return based on average net asset value - annualized Investment Company, Total Return, Annualized Ratio Investment Company, Total Return, Annualized Ratio Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Investment Advisory Agreement Investment Advisory Agreement [Member] Investment Advisory Agreement Schedule of Subscription and Contribution from Stockholders Schedule of Stockholders Equity [Table Text Block] Revolving Credit Facility Revolving Credit Facility [Member] Change in distributions payable Change In Distribution Costs Incurred But Not Yet Paid Change In Distribution Costs Incurred But Not Yet Paid Midwest US Midwest Region [Member] Arrangement Duration Trading Arrangement Duration O 2025 M1 Dividends O 2025 M1 Dividends [Member] O 2025 M1 Dividends Schedule of Effects of Offsetting Derivative Contracts on the Financial Statements Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Exercise Price Award Exercise Price Entity Filer Category Class of Stock [Domain] Class of Stock [Domain] Dividend income Dividend Income, Operating Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Proceeds from non-cash dividends Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Non-Cash Dividends Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Non-Cash Dividends Management and service fee, number of components Management And Service Fees, Number Of Components Management And Service Fees, Number Of Components Payable for investments purchased Increase (Decrease) in Payable for Investment Purchased Assets Assets [Abstract] Credit Facility [Axis] Credit Facility [Axis] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Debt Instrument [Axis] Return of capital distributions Investment Company, Tax Return of Capital Distribution Fair Value Measurements Fair Value Disclosures [Text Block] Credit Facility [Domain] Credit Facility [Domain] Investments Net change in unrealized (appreciation) depreciation on investments Debt and Equity Securities, Unrealized Gain (Loss) Net Assets Equity, Attributable to Parent [Abstract] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Investment Owned, Net Assets, Percentage Investment Owned, Net Assets, Percentage Entity Address, Address Line One Entity Address, Address Line Two Banks Banks Sector [Member] Banks Sector Debt instrument, basis spread on variable rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Investments on non-accrual status Fair Value, Option, Loans Held as Assets, Aggregate Amount in Nonaccrual Status Investments [Domain] Investments [Domain] Capital gain incentive fee payable Incentive Fee Payable, Capital-Gain-Based Increase commitment capital Investment Company, Subscribed Capital Assumed Investment Company, Subscribed Capital Assumed Management and service fees, base rate (as a percent) Management and Service Fees, Base Rate Derivatives Derivative Instruments and Hedging Activities Disclosure [Text Block] Industry Sector [Axis] Industry Sector [Axis] Unrealized appreciation Gross Amount of Recognized Assets Derivative Asset, Subject to Master Netting Arrangement, before Offset Investment Company [Abstract] Financial Highlights Investment Company, Financial Highlights [Text Block] Fair Value as of Grant Date Award Grant Date Fair Value Entity Registrant Name Investment Company, Financial Highlights [Line Items] Investment Company, Financial Highlights [Line Items] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Average debt outstanding per share (in dollars per share) Long-Term Debt, Average Amount Outstanding, Per Share Long-Term Debt, Average Amount Outstanding, Per Share Payment for capital gains incentive fee Payment For Capital Gains Incentive Fee Payment For Capital Gains Incentive Fee Related Party Transaction [Line Items] Related Party Transaction [Line Items] Document Quarterly Report Forward currency contracts Foreign Currency Contract, Asset, Fair Value Disclosure Total assets, at fair value: Assets, Fair Value Disclosure Schedule of Quantitative Information About the Significant Unobservable Inputs Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Investments, at Amortized Cost Investments, At Amortized Cost [Member] Investments, At Amortized Cost Transportation Infrastructure Transportation Infrastructure Sector [Member] Transportation Infrastructure Sector Counterparty Name [Domain] Counterparty Name [Domain] Investment Management Agreement - Incentive Rate, Pre-Incentive Fee Net Investment Income Below Catch-Up Investment Management Agreement - Incentive Rate, Pre-Incentive Fee Net Investment Income Below Catch-Up [Member] Investment Management Agreement - Incentive Rate, Pre-Incentive Fee Net Investment Income Below Catch-Up Number of operating segments Number of Operating Segments Electronic Equipment, Instruments & Components Electronic Equipment, Instruments And Components Sector [Member] Electronic Equipment, Instruments And Components Sector Accretion of discounts and amortization of premiums Accretion (Amortization) of Discounts and Premiums, Investments Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Investment Type [Axis] Investment Type [Axis] Related Party [Axis] Related and Nonrelated Parties [Axis] Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Ratio of total expenses to average net assets Investment Company, Total Expenses To Average Net Assets Investment Company, Total Expenses To Average Net Assets Repayments of debt Repayments of long-term lines of credit Repayments of Long-Term Lines of Credit Restatement Determination Date: Restatement Determination Date [Axis] Household Durables Household Durables Sector [Member] Household Durables Sector Denmark DENMARK Leisure Products Leisure Products Sector [Member] Leisure Products Sector Non-PEO NEO Non-PEO NEO [Member] GGP Holdings LP GGP Holdings LP [Member] GGP Holdings LP Realized gain (loss) on translation of investments in foreign currencies Realized Gain (Loss), Foreign Currency Transaction, Before Tax [Member] Realized Gain (Loss), Foreign Currency Transaction, Before Tax Interest expense Interest Expense, Debt Fee income Fee Income Currency to be sold Derivative Liability, Notional Amount Name Trading Arrangement, Individual Name Investment company, financial commitment to investee, future amount Investment Company, Financial Support to Investee Contractually Required, Not Provided, Amount All Award Types Award Type [Domain] Average U.S. Dollar notional outstanding Derivative, Average Notional Amount Derivative, Average Notional Amount Equity Awards Adjustments Equity Awards Adjustments [Member] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Subordinated debt and second lien loans Debt Securities, Subordinated Debt and Second Lien Loan [Member] Debt Securities, Subordinated Debt and Second Lien Loan Canada CANADA Compensation Amount Outstanding Recovery Compensation Amount Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Ratio of net expenses to average net assets Investment Company, Net Expenses To Average Net Assets Investment Company, Net Expenses To Average Net Assets Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Investment Management Agreement - Incentive Rate, Quarterly Hurdle Rate Investment Management Agreement - Incentive Rate, Quarterly Hurdle Rate [Member] Investment Management Agreement - Incentive Rate, Quarterly Hurdle Rate Distributions declared and payable Investment Company, Distribution Declared And Payable Investment Company, Distributions Declared And Payable Market comparable companies Valuation Technique, Price of Comparable Business [Member] Amortization of deferred offering costs Amortization Of Deferred Offering Costs Amortization Of Deferred Offering Costs Investment Advisory Agreement, Cumulative Pre-Incentive Fee Net Investment Income Investment Advisory Agreement, Cumulative Pre-Incentive Fee Net Investment Income [Member] Investment Advisory Agreement, Cumulative Pre-Incentive Fee Net Investment Income Schedule of Investments [Line Items] Schedule of Investments [Line Items] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Name Awards Close in Time to MNPI Disclosures, Individual Name Open Forward Foreign Currency Contract [Line Items] Open Forward Foreign Currency Contract [Line Items] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Interest income, operating, accretion of discounts and amortization of premiums Interest Income, Operating, Accretion Of Discounts And Amortization Of Premiums Interest Income, Operating, Accretion Of Discounts And Amortization Of Premiums Distribution Type [Axis] Distribution Type [Axis] Investment income Revenues [Abstract] Cash equivalents Cash Equivalents, at Carrying Value Water Utilities Water Utilities Water Utilities Sector [Member] Water Utilities Sector Financial Instruments [Domain] Financial Instruments [Domain] Statement of Income Location, Balance [Axis] Statement of Income Location, Balance [Axis] Oil, Gas & Consumable Fuels Oil, Gas & Consumable Fuels Sector [Member] Oil, Gas & Consumable Fuels Sector Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Net change in unrealized appreciation (depreciation) on investment transactions Net change in unrealized appreciation (depreciation) on investment transactions Net change in unrealized appreciation (depreciation) on investment transactions Unrealized Gain (Loss), Investment, Derivative, and Foreign Currency Transaction Price Change, Operating, before Tax Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Net translation of investments in foreign currencies Unrealized Gain (Loss), Foreign Currency Transaction, Before Tax [Member] Unrealized Gain (Loss), Foreign Currency Transaction, Before Tax Minimum Minimum [Member] Net Amounts Derivative Asset, Subject to Master Netting Arrangement, after Offset and Deduction Collateral (Received) /Pledged Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset Net change in unrealized appreciation (depreciation) on investment transactions (in dollars per share) Investment Company, Unrealized Gain (Loss) on Investment, Per Share Payment-in-kind interest capitalized Payment-in-kind interest capitalized Interest Income, Operating, Paid-In-Kind, Capitalized Interest Income, Operating, Paid-In-Kind, Capitalized Funding of settlements of forward currency contracts Payments For Derivative Instruments, Operating Activities Payments For Derivative Instruments, Operating Activities Company Selected Measure Name Company Selected Measure Name Revenue recognition Revenue [Policy Text Block] Gross Amount of Recognized Assets Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Borrowings Debt Disclosure [Text Block] Preferred stock, par value $0.001 per share, 1,000,000 shares authorized, no shares issued and outstanding as of March 31, 2026 and September 30, 2025 Preferred Stock, Value, Issued Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Portfolio Turnover Investment Company, Portfolio Turnover Interest payable Interest 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