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Bitonic Technology Labs, Inc. [Member] Bitonic Technology Labs, Inc. Line of Credit Line of Credit [Member] Restatement Determination Date Restatement Determination Date Proceeds from sale of investments Proceeds from Sale, Maturity and Collection of Investments Interest rate, below investment grade and secured debt ratio event Debt Instrument, Interest Rate, Below Investment Grade And Secured Debt Ratio Event Debt Instrument, Interest Rate, Below Investment Grade And Secured Debt Ratio Event Investment, Affiliated Issuer, Noncontrolled Investment, Affiliated Issuer, Noncontrolled [Member] Investment, Unaffiliated Issuer Investment, Unaffiliated Issuer [Member] Curology, Inc. Curology, Inc. [Member] Curology, Inc. Consumer Non-Durables Consumer Non-Durables [Member] Consumer Non-Durables 7.50% 2028 Notes, net 7.50% 2028 Notes, Net [Member] 7.50% 2028 Notes, Net Non-income weighted average portfolio yield on debt investments Non-Income Investment Company, Weighted Average Yield, Ratio Non-Income Investment Company, Weighted Average Yield, Ratio Amendment Flag Entity Common Stock, Shares Outstanding Fundings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances Net investment income before excise taxes Net Investment Income Investment company debt security, nonaccrual Investment Company Debt Security, Nonaccrual Investment Company Debt Security, Nonaccrual Investments [Domain] Investments [Domain] Dividends payable, number of installments Dividends Payable, Number Of Installments Dividends Payable, Number Of Installments S 2026 M8 Second Installment Dividends S 2026 M8 Second Installment Dividends [Member] S 2026 M8 Second Installment Dividends Expirations/terminations of unfunded commitments Fee Income Base management fee payable Increase (Decrease) in Management Fee Payable Related Party Agreements and Transactions Related Party Transactions Disclosure [Text Block] Accretion of end-of-term payments Investment Interest Rate, Accretion Of End Of Term Payments Investment Interest Rate, Accretion Of End Of Term Payments Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Entity Address, State or Province Medical Software and Information Services Medical Software and Information Services [Member] Medical Software and Information Services PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par or stated value (in dollars per share) Common Stock, Par or Stated Value Per Share Principal payments and sale proceeds received from investments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales and Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales and Settlements MA Micro Limited MA Micro Limited [Member] MA Micro Limited Other accrued expenses and liabilities Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Weighted average shares of common stock outstanding, Basic (in shares) Weighted average shares of common stock outstanding for period, basic (in shares) Weighted average shares of common stock outstanding, Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Non-Qualifying Assets Non-Qualifying Assets [Member] Non-Qualifying Assets Amortization and (accretion) of premiums and discounts, net Accretion (Amortization) of Discounts and Premiums, Investments Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Type of Term Sheet [Axis] Type of Term Sheet [Axis] Type of Term Sheet Schedule of Investments [Abstract] Regular distributions declared per share (in dollars per share) Regular Distributions Declared, Per Share Regular Distributions Declared, Per Share Unfunded Commitments Unfunded Loan Commitment [Member] Investment company, financial support to investee contractually required, not provided, backlog amount Backlog amount Investment Company, Financial Support To Investee Contractually Required, Not Provided, Backlog Amount Investment Company, Financial Support To Investee Contractually Required, Not Provided, Backlog Amount Other fees Noninterest Income Business to Business Marketplace Business to Business Marketplace [Member] Business to Business Marketplace Entity Address, City or Town Ocrolus, Inc. Ocrolus, Inc. [Member] Ocrolus, Inc. Healthcare Services Healthcare Services [Member] Healthcare Services Statement of Financial Position [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Basis of Presentation and Principles of Consolidation Basis of Accounting, Policy [Policy Text Block] Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Greater than or equal to 75% Variable Rate Component One [Member] Variable Rate Component One Distributions reinvested in common stock Stock Issued During Period, Value, Dividend Reinvestment Plan Level 2 Level 2 Fair Value, Inputs, Level 2 [Member] Gross Reductions Investments in and Advances to Affiliates, at Fair Value, Gross Reductions Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Monzo Bank Limited Monzo Bank Limited [Member] Monzo Bank Limited Net investment income (in dollars per share) Investment Company, Investment Income (Loss), Per Share, Basic Total Commitment Total Commitment Line of Credit Facility, Maximum Borrowing Capacity Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Interest rate Weighted average portfolio yield on debt investments Investment Interest Rate Interest rate floor Investment, Interest Rate, Floor Net increase (decrease) in net assets per share (in dollars per share) Net increase (decrease) in net assets resulting from operations per share (in dollars per share) Net increase (decrease) in net assets resulting from operations per share of common stock (in dollars per share) Investment Company, Net Asset Value, Per Share, Period Increase (Decrease) Dividends [Domain] Dividends [Domain] Debt instrument, variable interest rate, type flag Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Schedule of Long-Term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Number of portfolio companies Investment Company, Financial Commitment to Investee, Number Of Portfolio Companies Investment Company, Financial Commitment to Investee, Number Of Portfolio Companies Social/Platform Software Social/Platform Software [Member] Social/Platform Software Distributions from distributable earnings Distributed Earnings Total operating expenses before Income incentive fee waiver Investment Income, Investment Expense Option-Pricing Method and Probability-Weighted Expected Return Method Valuation Technique, Option Pricing Model And Probability-Weighted Expected Return Method [Member] Valuation Technique, Option Pricing Model And Probability-Weighted Expected Return Method Debt Investments Floating Interest Rate Debt Investments Floating Interest Rate [Member] Debt Investments Floating Interest Rate Operating expenses excluding incentive fees to average net asset value Investment Company, Expense Ratio before Incentive Allocation Affiliate Investment Affiliate Investment [Member] Affiliate Investment Amortization of debt fees and issuance costs Amortization of costs and other fees Amortization of Debt Issuance Costs Related Party [Axis] Related and Nonrelated Parties [Axis] Unsecured Debt Unsecured Debt [Member] Aggregated investment holdings percent of gross assets where third party valuation is not required Fair Value Measurements, Third Party Valuation Not Required Threshold For Aggregated Investments, Percent Of Gross Assets Fair Value Measurements, Third Party Valuation Not Required Threshold For Aggregated Investments, Percent Of Gross Assets Schedule of Level 3 Commitment Liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Repayments under revolving credit facility Repayments of Lines of Credit Total borrowings outstanding, net of deferred financing and issuance costs Long-Term Debt Distributions reinvested in common stock (in shares) Stock Issued During Period, Shares, Dividend Reinvestment Plan Average net asset value Investment Company, Average Net Assets 2025 Notes 2025 Notes 2025 Notes [Member] 2025 Notes Non-binding Non-binding [Member] Non-binding Document Period End Date Change in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Type of Term Sheet [Domain] Type of Term Sheet [Domain] Type of Term Sheet [Domain] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Dividends payable (in dollars per share) Dividends Payable, Amount Per Share Investment Management Agreement - 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Project 1920, Inc. [Member] Project 1920, Inc. Ratios / Supplemental Data Investment Company, Financial Ratios [Abstract] Balance Outstanding Long-Term Debt, Gross Sales and excise tax payable, net Sales And Excise Tax Payable, Net Sales And Excise Tax Payable, Net Schedule of Management and Incentive Fees Management and Incentive Fees [Table Text Block] Management and Incentive Fees Dependent on milestones Contractual Obligation, Contingent Commitments Contractual Obligation, Contingent Commitments Investment Management Agreement - Incentive Rate, Annualized Hurdle Rate Investment Management Agreement - Incentive Rate, Annualized Hurdle Rate [Member] Investment Management Agreement - Incentive Rate, Annualized Hurdle Rate Debt investments Debt Investments Debt Securities [Member] Credit Facility [Domain] Credit Facility [Domain] Asset Class [Domain] Asset Class [Domain] Net realized and unrealized gains/(losses) Gain (Loss), Investment and Derivative, Operating, before Tax [Abstract] Related Party Transactions [Abstract] Cash Flows from Operating Activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Deferred credit facility costs Payment of Deferred Credit Facility Costs Payment of Deferred Credit Facility Costs Compensation Amount Outstanding Recovery Compensation Amount Consumer Finance Consumer Finance [Member] Consumer Finance Individual: Individual [Axis] Warrant investments Warrant Investments Warrant [Member] Weighted average shares of common stock outstanding, Diluted (in shares) Weighted average shares of common stock outstanding for period, diluted (in shares) Weighted average shares of common stock outstanding, Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Payment in Kind (PIK) Note Payment in Kind (PIK) Note [Member] Business Applications Software Business Applications Software [Member] Business Applications Software Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Investment holdings percent of gross assets where third party valuation is not required (less than) Fair Value Measurements, Third Party Valuation Not Required Threshold, Percent Of Gross Assets Fair Value Measurements, Third Party Valuation Not Required Threshold, Percent Of Gross Assets Related Party Transaction [Line Items] Related Party Transaction [Line Items] Gross transfers out of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Credit Loss [Abstract] 2027 Notes 2027 Notes 2027 Notes [Member] 2027 Notes Underlying Security Market Price Change Underlying Security Market Price Change, Percent Capital gains incentive fees to average net asset value Investment Company, Capital Gains Incentive Fee Allocation To Average Net Assets Investment Company, Capital Gains Incentive Fee Allocation To Average Net Assets Borrowings under revolving credit facility Proceeds from Lines of Credit Ao1 Holdings, Inc. Ao1 Holdings, Inc. [Member] Ao1 Holdings, Inc. New commitments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Additions Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Additions Accordion feature, higher borrowing capacity option Line of Credit Facility, Accordion Feature, Higher Borrowing Capacity Option Line of Credit Facility, Accordion Feature, Higher Borrowing Capacity Option Current borrowing capacity Line of Credit Facility, Current Borrowing Capacity Schedule of Rollforward of Level 3 Investments Measured at Fair Value Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] E-Commerce - Clothing and Accessories E-Commerce - Clothing and Accessories [Member] E-Commerce - Clothing and Accessories Investment Company, Financial Highlights [Roll Forward] Investment Company, Financial Highlights [Roll Forward] Award Timing Predetermined Award Timing Predetermined [Flag] Minted, Inc. Minted, Inc. [Member] Minted, Inc. Repayment of notes Repayments of Unsecured Debt Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Number of Shares of Common Stock Issued (in shares) Stock Issued During Period, Shares, Dividend Reinvestment Plan And Sale Of Stock, Number Of Shares Issued In Transaction Stock Issued During Period, Shares, Dividend Reinvestment Plan And Sale Of Stock, Number Of Shares Issued In Transaction Level 1 Level 1 Fair Value, Inputs, Level 1 [Member] Proceeds from issuance of notes Proceeds from Issuance of Unsecured Debt Organization, Consolidation and Presentation of Financial Statements [Abstract] Omio Corp. (f/k/a GoEuro Corp.) Omio Corp. (f/k/a GoEuro Corp.) [Member] Omio Corp. (f/k/a GoEuro Corp.) Net realized (gains) losses on investments Gain (Loss) on Sale of Investments Probability-Weighted Expected Return Method Valuation Technique, Probability-Weighted Expected Return Method [Member] Valuation Technique, Probability-Weighted Expected Return Method 8.11% 2028 Notes 8.11% 2028 Notes 8.11% 2028 Notes [Member] 8.11% 2028 Notes Sale of stock available for issuance amount Sale of Stock Available for Issuance Amount Sale of Stock Available for Issuance Amount Net investment income to average net asset value Investment Company, Investment Income (Loss) Ratio Investment, Affiliated Issuer Investment, Affiliated Issuer [Member] All Executive Categories All Executive Categories [Member] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Total operating expenses net of Income incentive fee waiver Investment Company, Expense, after Reduction of Fee Waiver and Reimbursement Preferred stock, par or stated value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Unused fee Line of Credit Facility, Commitment Fee Amount Lively, Inc. Lively, Inc. [Member] Lively, Inc. Distributions Declared December 30, 2025 O 2025 A Dividends [Member] O 2025 A Dividends Total interest expense and amortization of fees Interest and Debt Expense Distributions Declared December 30, 2022 O 2022 A Dividends [Member] O 2022 A Dividends Interest coverage ratio, minimum Debt Instrument, Covenant, Interest Coverage Ratio, Minimum Debt Instrument, Covenant, Interest Coverage Ratio, Minimum Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Debt Disclosure [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Operating Segments Segment Reporting [Text Block] Investments Investment in Debt and Equity Securities and Other Trading Assets [Text Block] Minimum Minimum [Member] Revolving Credit Facility Outstanding borrowings under credit facility Long-Term Line of Credit Investment Type [Axis] Investment Type [Axis] Expiration Date Trading Arrangement Expiration Date Investment company, investment income ratio, excluding income incentive fee waiver Investment Company, Investment Income (Loss) Ratio, Excluding Income Incentive Fee Waiver Investment Company, Investment Income (Loss) Ratio, Excluding Income Incentive Fee Waiver Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Liabilities Liabilities [Abstract] Cart.com, Inc. Cart.com, Inc. [Member] Cart.com, Inc. Income Statement Location [Axis] Location, Statement of Income, Balance [Axis] Distributions reinvested Cash Flows Between Transferor and Transferee, Proceeds from Collections Reinvested in Revolving Period Transfers Restricted cash Restricted cash Restricted Cash and Cash Equivalent Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Changes in net asset value due to: Investment Company, Investment Income (Loss) from Operations, Per Share [Abstract] Affiliated Entity Affiliated Entity [Member] Notes, net Unsecured Debt Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Net investment income after excise taxes Net investment income Investment Income, Operating, after Expense and Tax Common stock, authorized (in shares) Common Stock, Shares Authorized Equity Investments Equity Investments [Member] Equity Investments Common stock issued (in shares) Number of Shares of Common Stock Issued (in shares) Sale of Stock, Number of Shares Issued in Transaction Exercise Price Award Exercise Price Transfers between investment types Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Related Party Transaction [Axis] Related Party Transaction [Axis] Share repurchase program, authorized amount Share Repurchase Program, Authorized, Amount Variable Rate Component [Axis] Variable Rate Component [Axis] Variable Rate Component Document Quarterly Report Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Multimedia and Design Software Multimedia and Design Software [Member] Multimedia and Design Software Unobservable Inputs Investment Company, Investment Owned, Measurement Input Borrowings Debt Disclosure [Text Block] Amortized cost Cost Investment Owned, Cost Gross Additions New investments Investments in and Advances to Affiliates, at Fair Value, Gross Additions Insurance Insurance [Member] Insurance Repayments of debt Repayments of Long-Term Debt Fiton Inc. Fiton Inc. [Member] Fiton Inc. Contractual obligation Unfunded commitments Contractual Obligation Schedule of Contractual Obligation, Fiscal Year Maturity Contractual Obligation, Fiscal Year Maturity [Table Text Block] Base management fee Base management fee Management Fee Expense Unamortized deferred financing and issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Capital gains incentive fee Incentive Fee Expense, Capital-Gain-Based Net of unamortized debt issuance costs Debt Issuance Costs, Net Undistributed earnings Investment Company, Undistributed Earnings Investment Company, Undistributed Earnings Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Financial Highlights Investment Company, Financial Highlights [Text Block] Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Measurement Input Type [Domain] Measurement Input Type [Domain] Gain (loss) included in earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Period from date of investment when each new portfolio investment will be reviewed by a third party valuation firm Fair Value Measurements, Third Party Valuation, Period From Initial Investment Fair Value Measurements, Third Party Valuation, Period From Initial Investment Fundings and purchases of investments Payment for Purchase, Investment, Operating Activity Investment income Investment Income, Net [Abstract] Gross proceeds raised Gross Proceeds Raised Sale of Stock, Consideration Received on Transaction Adoption Date Trading Arrangement Adoption Date Stated interest rate Debt Instrument, Interest Rate, Stated Percentage Total net assets Beginning balance Ending balance Net asset value Equity, Attributable to Parent Income incentive fee payable Incentive Fee Payable Assets Assets [Abstract] EBITDA Multiples Measurement Input, EBITDA Multiple [Member] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Healthcare Technology Systems Healthcare Technology Systems [Member] Healthcare Technology Systems Common Stock, Shares Issued, Not Disclosed Common Stock, Shares Issued, Not Disclosed Common Stock, Shares Issued, Not Disclosed Insider Trading Policies and Procedures [Line Items] Investment, Issuer Affiliation [Domain] Investment, Issuer Affiliation [Domain] Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Other income Interest and Other Income [Abstract] Commitments Activity (in thousands) Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Grove Collaborative, Inc. Grove Collaborative, Inc. [Member] Grove Collaborative, Inc. 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Quick Commerce Ltd. [Member] Quick Commerce Ltd. Preferred stock, issued (in shares) Preferred Stock, Shares Issued Industry Sector [Axis] Industry Sector [Axis] Undistributed earnings (in dollars per share) Investment Company, Undistributed Earnings Per Share Investment Company, Undistributed Earnings Per Share Excise tax expense Investment Company, Excise Tax Expense Investment Management Agreement Investment Management Agreement [Member] Investment Management Agreement Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] S 2026 M8 Aggregate Dividends S 2026 M8 Aggregate Dividends [Member] S 2026 M8 Aggregate Dividends 2026 Contractual Obligation, to be Paid, Remainder of Fiscal Year PEO PEO [Member] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] 2028 Contractual Obligation, to be Paid, Year Two Credit Risk Credit Loss, Financial Instrument [Text Block] Schedule of Common Stock Offerings Schedule of Sale of Stock by Subsidiary or Equity Method Investee Disclosure [Table Text Block] Debt Investments Debt Investments [Member] Debt Investments Outstanding Principal Outstanding principal Investment Owned, Balance, Principal Amount Mind Candy Limited Mind Candy Limited [Member] Mind Candy Limited Tax basis of investments, cost for income tax purposes Investment, Tax Basis, Cost Cash Equivalents Cash Equivalents [Member] Underwriting Sales Load Payment Of Stock Issuance Costs, Underwriting Payment Of Stock Issuance Costs, Underwriting Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Educational/Training Software Educational/Training Software [Member] Educational/Training Software Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Advance rate Line of Credit Facility, Advance Rate Line of Credit Facility, Advance Rate Amount of Unrealized Gain (Loss) Investments in and Advances to Affiliates, at Fair Value, Period Increase (Decrease) Total distributable earnings (loss) Retained Earnings [Member] Revolving Credit Facility Revolving Credit Facility [Member] Money Market Fund Money Market Funds [Member] E-Commerce - Personal Goods E-Commerce - Personal Goods [Member] E-Commerce - Personal Goods Investment Company [Abstract] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Schedule of Quantitative Information About the Level 3 Fair Value Measurements Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Shares of common stock outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Shares of common stock outstanding at end of period (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Financial Support for Nonconsolidated Legal Entity [Table] Financial Support for Nonconsolidated Legal Entity [Table] Debt issuance costs Payments of Debt Issuance Costs Net investment income per share of common stock, Diluted (in dollars per share) Earnings Per Share, Diluted Entity Current Reporting Status Net cash provided by (used in) financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Percent of the investment portfolio that will receive valuation recommendations from a third party valuation firm each quarter Fair Value Measurements, Third Party Quarterly Valuation, Percent Of Investment Portfolio Fair Value Measurements, Third Party Quarterly Valuation, Percent Of Investment Portfolio Total Shareholder Return Amount Total Shareholder Return Amount Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Net change in unrealized gains (losses) on investments: Net change in unrealized (gains) losses on investments Net change in unrealized gains (losses) on investments Unrealized Gain (Loss) on Investments Income incentive fee Income incentive fee Incentive Fee Expense Income incentive fees to average net asset value Investment Company, Incentive Allocation to Average Net Assets, Percentage Asset coverage ratio, minimum Debt Instrument, Covenant, Asset Coverage Ratio, Minimum Debt Instrument, Covenant, Asset Coverage Ratio, Minimum Schedule of Fair Value, Liabilities Measured on Recurring Basis Fair Value, Liabilities Measured on Recurring Basis [Table Text Block] Total return based on net asset value per share Investment Company, Total Return Investment Management Agreement - Incentive Rate, Realized Capital Gains, Net Investment Management Agreement - Incentive Rate, Realized Capital Gains, Net [Member] Investment Management Agreement - Incentive Rate, Realized Capital Gains, Net Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Cash Flows from Financing Activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Backlog of potential future commitments Investment Company, Financial Commitment to Investee, Potential Future Amount Investment Company, Financial Commitment to Investee, Potential Future Amount Unused Commitment Line of Credit Facility, Remaining Borrowing Capacity Net increase (decrease) in net assets to average net asset value Investment Company, Increase (Decrease) In Net Assets To Average Net Asset Value Investment Company, Increase (Decrease) In Net Assets To Average Net Asset Value Unused commitment fee (in percentage) Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Outfittery GMBH Outfittery GMBH [Member] Outfittery GMBH Financial Instruments [Domain] Financial Instruments [Domain] Total return based on stock price Investment Company, Total Return, Market Value Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Shopping Facilitators Shopping Facilitators [Member] Shopping Facilitators Underlying Securities Award Underlying Securities Amount Consumer Retail Consumer Retail [Member] Consumer Retail Over-Allotment Option Over-Allotment Option [Member] Expected Recovery Rate Measurement Input, Expected Recovery Rate [Member] Measurement Input, Expected Recovery Rate Schedule of Financial Highlights Investment Company, Financial Highlights [Table Text Block] Trendly, Inc. Trendly, Inc. [Member] Trendly, Inc. Investment, Issuer Name [Axis] Investment, Issuer Name [Axis] Communication Software Communication Software [Member] Communication Software Merama Inc. Merama Inc. [Member] Merama Inc. Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] Sale of Stock [Axis] Sale of Stock [Axis] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Unfunded commitments at beginning of period Unfunded commitments and backlog of potential future commitments at end of period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Incode Technologies, Inc. Incode Technologies, Inc. [Member] Incode Technologies, Inc. Supplemental Disclosures of Cash Flow Information: Interest Paid, Including Capitalized Interest, Operating and Investing Activities [Abstract] Current Fiscal Year End Date Shares Investment Owned, Balance, Shares Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Distributions Partners' Capital Notes Disclosure [Text Block] Related Party Transaction [Domain] Related Party Transaction [Domain] Number of shares repurchased (in shares) Stock Repurchased During Period, Shares Unavailable commitments due to milestone restrictions Investment Company, Unavailable Commitments Investment Company, Unavailable Commitments 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] Dividends declared (in dollars per share) Common Stock, Dividends, Per Share, Declared Securities Act File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Fair Value Total portfolio company investments Beginning balance Ending balance Total Level 3 portfolio company investments Investment Owned, Fair Value Equity investments Equity Investments Equity Securities [Member] Operating expenses, excluding income incentive fee waiver Investment Company, Expense Ratio Before Incentive Allocation, Excluding Income Incentive Fee Waiver Investment Company, Expense Ratio Before Incentive Allocation, Excluding Income Incentive Fee Waiver Deferred credit facility costs Deferred Costs, Current Amount of Realized Gain (Loss) Investments In And Advances To Affiliates, At Fair Value, Amount Of Realized Gain (Loss) Investments In And Advances To Affiliates, At Fair Value, Amount Of Realized Gain (Loss) Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Administration Agreement expenses Administrative Fees Expense Measure: Measure [Axis] Fair value, beginning balance Fair value, ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Nakdcom One World AB Nakdcom One World AB [Member] Nakdcom One World AB Muon Space, Inc. Muon Space, Inc. [Member] Muon Space, Inc. Application Software Application Software [Member] Application Software Equity Components [Axis] Equity Components [Axis] Revolut Ltd Revolut Ltd [Member] Revolut Ltd FabFitFun, Inc. FabFitFun, Inc. [Member] FabFitFun, Inc. Class of Stock [Line Items] Class of Stock [Line Items] HomeLight, Inc. HomeLight, Inc. [Member] HomeLight, Inc. Other Financial Services Other Financial Services [Member] Other Financial Services Distribution of Assets, Liabilities and Stockholders' Equity [Line Items] Distribution of Assets, Liabilities and Stockholders' Equity [Line Items] Entity Interactive Data Current Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Small Business Net assets increase, excluding income incentive fee waiver Investment Company, Increase (Decrease) In Net Assets To Average Net Asset Value, Excluding Income Incentive Fee Waiver Investment Company, Increase (Decrease) In Net Assets To Average Net Asset Value, Excluding Income Incentive Fee Waiver Termination Date Trading Arrangement Termination Date Other Commitments [Axis] Other Commitments [Axis] Subsequent Events [Abstract] Expirations / Terminations Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Less than 50% Variable Rate Component Three [Member] Variable Rate Component Three Aggregate principal balance, secured status threshold Debt Instrument, Covenant, Aggregate Principal Balance, Secured Status Threshold Debt Instrument, Covenant, Aggregate Principal Balance, Secured Status Threshold Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Principal payments and proceeds from investments Proceeds from Disposition of Investment, Operating Activity Document Type Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Skyflow, Inc. Skyflow, Inc. [Member] Skyflow, Inc. Fair Value as of Grant Date Award Grant Date Fair Value Net asset value 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) Significant Accounting Policies Significant Accounting Policies [Text Block] PIK interest Investment, Interest Rate, Paid in Kind Schedule of Interest Expense and Amortization of Fees Interest Expense and Amortization of Fees [Table Text Block] Interest Expense and Amortization of Fees Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Subsequent Event [Line Items] Subsequent Event [Line Items] Statement of Stockholders' Equity [Abstract] Interest rate, secured debt ratio event Debt Instrument, Interest Rate, Secured Debt Ratio Event Debt Instrument, Interest Rate, Secured Debt Ratio Event Information Services (B2C) Information Services (B2C) [Member] Information Services (B2C) Local Phone Number Advisory Agreement Advisory Agreement [Member] Advisory Agreement Hydrow, Inc. Hydrow, Inc. [Member] Hydrow, Inc. Entity Address, Postal Zip Code Entity Registrant Name Net change in unrealized gains (losses) on investments (in dollars per share) Investment Company, Unrealized Gain (Loss) on Investment, Per Share Pledged Status [Domain] Pledged Status [Domain] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Offering Expenses Payment Of Stock Issuance Costs, Offering Payment Of Stock Issuance Costs, Offering Commitments and Contingencies (Note 7) Commitments and Contingencies PlanHub, Inc. PlanHub, Inc. [Member] PlanHub, Inc. Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Investments Not Valued At Fair Value Investments Not Valued At Fair Value [Member] Investments Not Valued At Fair Value Payment-in-kind interest income Payment-in-kind interest on investments Interest Income, Operating, Paid in Kind Executive Category: Executive Category [Axis] Flink SE Flink SE [Member] Flink SE Schedule of Distribution of Assets, Liabilities and Stockholders' Equity Distribution of Assets, Liabilities and Stockholders' Equity [Table Text Block] Asset Not Pledged as Collateral Asset Not Pledged as Collateral [Member] FlashParking, Inc. FlashParking, Inc. [Member] FlashParking, Inc. 2031 Contractual Obligation, to be Paid, Year Three All Award Types Award Type [Domain] Aerospace and Defense Aerospace and Defense [Member] Aerospace and Defense Impact of prepayments during the period Investment Interest Rate, Impact Of Prepayments Investment Interest Rate, Impact Of Prepayments Net realized gains (losses) on investments (in dollars per share) Investment Company, Realized Gain (Loss) on Investment, Per Share Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Revenue Multiples Measurement Input, Revenue Multiple [Member] Level 3 Level 3 Fair Value, Inputs, Level 3 [Member] Financial Support for Nonconsolidated Legal Entity [Line Items] Financial Support for Nonconsolidated Legal Entity [Line Items] Asset Pledged as Collateral Asset Pledged as Collateral [Member] Stock price at end of period (in dollars per share) Sonder Holdings Inc. Sonder Holdings Inc. [Member] Sonder Holdings Inc. PEO Name PEO Name Minimum stockholders' equity balance Debt Instrument, Covenant, Equity Balance, Minimum Debt Instrument, Covenant, Equity Balance, Minimum Other accrued expenses and liabilities Accrued Liabilities and Other Liabilities Coupon income Investment Interest Rate, Coupon Income Investment Interest Rate, Coupon Income Investment, Issuer Affiliation [Axis] Investment, Issuer Affiliation [Axis] Excise tax paid Income Tax Paid, before Refund Received Credit facility, average interest rate (in percentage) Line of Credit Facility, Interest Rate During Period Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Hybrid Equity Investment Hybrid Equity Investment [Member] Hybrid Equity Investment Prepaid expenses and other assets Prepaid Expense and Other Assets Liability Class [Axis] Liability Class [Axis] Cash, cash equivalents and restricted cash at beginning of period Cash, cash equivalents and restricted cash at end of period Total cash, cash equivalents and restricted cash shown in the statement of cash flows Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Base management fee payable Management Fee Payable Facility utilization (in percentage) Debt Instrument, Facility Utilization Percentage Debt Instrument, Facility Utilization Percentage Ratio calculation period Debt Instrument, Covenant, Ratio Calculation Period Debt Instrument, Covenant, Ratio Calculation Period Per share information (basic and diluted) Earnings Per Share, Basic and Diluted EPS [Abstract] Earnings Per Share, Basic and Diluted EPS 2027 Notes, net 2027 Notes, Net [Member] 2027 Notes, Net Entity Incorporation, State or Country Code Fair value of unfunded commitments Fair Value of Unfunded Commitment Liability Investment Company, Financial Commitment to Investee, Future Amount, Fair Value Investment Company, Financial Commitment to Investee, Future Amount, Fair Value Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Incentive fee percentage Management and Service Fees, Incentive Rate Consumer Products and Services Consumer Products and Services [Member] Consumer Products and Services Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] 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] Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] (Accretion) reduction of end-of-term payments, net of prepayments Accretion (Reduction) of End-Of-Term Payments, Net Accretion (Reduction) of End-Of-Term Payments, Net Debt Instrument [Axis] Subsequent Event [Table] Subsequent Event [Table] General Media and Content General Media and Content [Member] General Media and Content Dividends declared ordinary (in dollars per share) Common Stock, Dividends, Per Share, Declared, Ordinary Common Stock, Dividends, Per Share, Declared, Ordinary Schedule of Debt Schedule of Debt [Table Text Block] Food & Drug Food & Drug [Member] Food & Drug Net investment income per share of common stock, Basic (in dollars per share) Earnings Per Share, Basic Long-Term Debt, Type [Domain] Long-Term Debt, Type [Domain] Measurement Input Type [Axis] Measurement Input Type [Axis] Distributions Declared December 30, 2025 S 2025 A Dividends [Member] S 2025 A Dividends Risk Free Rate Measurement Input, Risk Free Interest Rate [Member] Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Network Management Software Network Management Software [Member] Network Management Software Base management fee percentage Management and Service Fees, Base Rate Award Type Award Type [Axis] Number of components Related Party Transaction, Number Of Components Related Party Transaction, Number Of Components Gross Proceeds Raised Stock Issued During Period, Value, Dividend Reinvestment Plan, And Sale Of Stock, Consideration Received On Transaction Stock Issued During Period, Value, Dividend Reinvestment Plan, And Sale Of Stock, Consideration Received On Transaction Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Investment, tax basis, unrealized loss Investment, Tax Basis, Unrealized Gain (Loss) Total distributable earnings (loss) Retained Earnings (Accumulated Deficit) Arcadia Power, Inc. Arcadia Power, Inc. [Member] Arcadia Power, Inc. Parry Labs, LLC Parry Labs, LLC [Member] Parry Labs, LLC Financial Institution and Services Financial Institution and Services [Member] Financial Institution and Services 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] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Per Share Data Investment Company, Per Share Data [Abstract] Investment Company, Per Share Data Number of investments Investment Company, Number Of Investments Investment Company, Number Of Investments Common stock Common Stock [Member] Unfunded Commitments Unfunded commitments at end of period Investment Company, Financial Support to Investee Contractually Required, Not Provided, Amount Investment company, investment income (loss) ratio, before incentive allocation percentage Investment Company, Investment Income (Loss) Ratio, before Incentive Allocation Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Interest cost Interest Expense, Debt, Excluding Amortization Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Equity Awards Adjustments Equity Awards Adjustments [Member] Income incentive fee payable Increase (Decrease) in Incentive Fee Payable Total liabilities and net assets Liabilities and Equity JOKR S.à r.l. JOKR S.à r.l. [Member] JOKR S.à r.l. Net realized gains (losses) on investments: Net realized (losses) gains on investments Realized Investment Gains (Losses) Employee Stock Option Share-Based Payment Arrangement, Option [Member] Funding and purchases of investments, at cost Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Industry Sector [Domain] Industry Sector [Domain] 8.11% 2028 Notes, net 8.11% 2028 Notes, Net [Member] 8.11% 2028 Notes, Net Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Asset Class [Axis] Asset Class [Axis] Related Party [Domain] Related and Nonrelated Parties [Domain] Percent of net assets Investment Owned, Net Assets, Percentage Tabular List, Table Tabular List [Table Text Block] Paid-in capital in excess of par value Additional Paid in Capital Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income Flag Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Sales Agreement Sales Agreement [Member] Sales Agreement Name Awards Close in Time to MNPI Disclosures, Individual Name Paid in kind interest to total interest Debt Instrument, Interest Rate, Paid In Kind Interest Percent To Total Interest Debt Instrument, Interest Rate, Paid In Kind Interest Percent To Total Interest Credit facility, average outstanding borrowings Line of Credit Facility, Average Outstanding Amount Investment, Identifier [Axis] Investment, Identifier [Axis] Entertainment Entertainment Sector [Member] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Discounted Expected Return Valuation Technique, Discounted Expected Return [Member] Valuation Technique, Discounted Expected Return General and administrative expenses General and Administrative Expense Interest rate, below investment grade event Debt Instrument, Interest Rate, Below Investment Grade Event Debt Instrument, Interest Rate, Below Investment Grade Event Gross Offering Price per Share (in dollars per share) Sale of Stock, Price Per Share Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Distributions from net investment income (in dollars per share) Investment company, distribution to shareholders (in dollars per share) Investment Company, Distribution to Shareholders, Per Share Preferred stock, par value $0.01 per share (50,000 shares authorized; no shares issued and outstanding, respectively) Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Investment company debt security, nonaccrual, fair value Investment Company Debt Security, Nonaccrual, Fair Value Investment Company Debt Security, Nonaccrual, Fair Value Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Statement of Cash Flows [Abstract] 2027 Contractual Obligation, to be Paid, Year One Farmer's Business Network, Inc. Farmer's Business Network, Inc. [Member] Farmer's Business Network, Inc. Ratio of expenses to average net asset value Investment Company, Expense Ratio after Incentive Allocation Credit Facility [Axis] Credit Facility [Axis] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Name Measure Name Frubana Inc. Frubana Inc. [Member] Frubana Inc. 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Award Timing Method [Text Block] Net change in cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Portfolio Turnover Ratio Investment Company, Portfolio Turnover Number of transfers out of Level 3 Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Number Of Transfers Out Of Level 3 Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Number Of Transfers Out Of Level 3 Expense ratio, excluding income incentive fee waiver Investment Company, Expense Ratio after Incentive Allocation, Excluding Income Incentive Fee Waiver Investment Company, Expense Ratio after Incentive Allocation, Excluding Income Incentive Fee Waiver Net increase (decrease) in net assets resulting from operations Net increase (decrease) in net assets resulting from operations Net increase (decrease) in net assets resulting from operations Net Income (Loss) Attributable to Parent Excise tax payable Sales and Excise Tax Payable Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Investments Investments [Member] Discounted Cash Flows Valuation Technique, Discounted Cash Flow [Member] Interest rate EOT Investment, Interest Rate, End of Term Investment, Interest Rate, End of Term Energy Energy [Member] Energy Statement [Table] Statement [Table] MXP Prime GmbH MXP Prime GmbH [Member] MXP Prime GmbH Restatement Determination Date: Restatement Determination Date [Axis] Interest income from investments Investment Income, Interest Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] 2026 Notes, net 2026 Notes, Net [Member] 2026 Notes, Net Fair Value, Liabilities Measured on Recurring 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