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Trendly, Inc. [Member] Trendly, Inc. Skyflow, Inc. Skyflow, Inc. [Member] Skyflow, Inc. Debt Investments Floating Interest Rate Debt Investments Floating Interest Rate [Member] Debt Investments Floating Interest Rate Line of Credit Line of Credit [Member] Restatement Determination Date Restatement Determination Date Interest coverage ratio, minimum Debt Instrument, Covenant, Interest Coverage Ratio, Minimum Debt Instrument, Covenant, Interest Coverage Ratio, Minimum Investment, Affiliated Issuer, Noncontrolled Investment, Affiliated Issuer, Noncontrolled [Member] Investment, Unaffiliated Issuer Investment, Unaffiliated Issuer [Member] Parry Labs, LLC Parry Labs, LLC [Member] Parry Labs, LLC Amendment Flag Entity Common Stock, Shares Outstanding Fundings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances MA Micro Limited MA Micro Limited [Member] MA Micro Limited PlanHub, Inc. PlanHub, Inc. [Member] PlanHub, Inc. Net investment income before excise taxes Net Investment Income Merama Inc. Merama Inc. [Member] Merama Inc. 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[Member] Distributions [Abstract] Distributions [Abstract] Ratio calculation period Debt Instrument, Covenant, Ratio Calculation Period Debt Instrument, Covenant, Ratio Calculation Period Consumer Products and Services Consumer Products and Services [Member] Consumer Products and Services Other fees Noninterest Income Entity Address, City or Town Statement of Financial Position [Abstract] Variable Rate Component [Axis] Variable Rate Component [Axis] Variable Rate Component 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 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 Eridu Corporation 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Project 1920, Inc. [Member] Project 1920, Inc. Company Selected Measure Name Company Selected Measure Name Sale of Stock [Domain] Sale of Stock [Domain] Investment Management Agreement Investment Management Agreement [Member] Investment Management Agreement Investment, tax basis, unrealized loss Investment, Tax Basis, Unrealized Loss E-Commerce - Personal Goods E-Commerce - Personal Goods [Member] E-Commerce - Personal Goods Ratios / Supplemental Data Investment Company, Financial Ratios [Abstract] Balance Outstanding Long-Term Debt, Gross Debt investments Debt Investments Debt Securities [Member] 8.11% 2028 Notes, net 8.11% 2028 Notes, Net [Member] 8.11% 2028 Notes, Net Asset coverage ratio, minimum Debt Instrument, Covenant, Asset Coverage Ratio, Minimum Debt Instrument, Covenant, Asset Coverage Ratio, Minimum 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] Compensation Amount Outstanding Recovery Compensation Amount Impact of prepayments during the period Investment Interest Rate, Impact Of Prepayments Investment Interest Rate, Impact Of Prepayments 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] Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] 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] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Lively, Inc. Lively, Inc. [Member] Lively, Inc. Borrowings under revolving credit facility Proceeds from Lines of Credit Offering Expenses Payment Of Stock Issuance Costs, Offering Payment Of Stock Issuance Costs, Offering Current borrowing capacity Line of Credit Facility, Current Borrowing Capacity Number of subsidiaries Number Of Subsidiaries Number Of Subsidiaries Schedule of Rollforward of Level 3 Investments Measured at Fair Value Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Investment Company, Financial Highlights [Roll Forward] Investment Company, Financial Highlights [Roll Forward] 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 Educational/Training Software Educational/Training Software [Member] Educational/Training Software Award Timing Predetermined Award Timing Predetermined [Flag] Repayment of notes Repayments of Unsecured Debt Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Level 1 Level 1 Fair Value, Inputs, Level 1 [Member] Proceeds from issuance of notes Proceeds from Issuance of Unsecured Debt Advertising / Marketing Advertising/Marketing [Member] Advertising/Marketing Organization, Consolidation and Presentation of Financial Statements [Abstract] Net realized (gains) losses on investments Gain (Loss) on Sale of Investments 2027 Notes 2027 Notes 2027 Notes [Member] 2027 Notes 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 Quick Commerce Ltd. Quick Commerce Ltd. [Member] Quick Commerce Ltd. Net investment income to average net asset value Investment Company, Investment Income (Loss) Ratio Distributions from net investment income (in dollars per share) Investment Company, Distribution To Shareholders, Paid, Per Share Investment Company, Distribution To Shareholders, Paid, Per Share Investment, Affiliated Issuer Investment, Affiliated Issuer [Member] All Executive Categories All Executive Categories [Member] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Probability Weighting of Alternative Outcomes Measurement Input, Probability-Weighting of Aleternative Outcomes [Member] Measurement Input, Probability-Weighting of Aleternative Outcomes Business Applications Software Business Applications Software [Member] Business Applications Software Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Flink SE Flink SE [Member] Flink SE Schedule of Unfunded Commitments Unfunded Commitments [Table Text Block] Unfunded Commitments 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 Total interest expense and amortization of fees Interest and Debt Expense Financial Software Financial Software [Member] Financial Software 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 Forum Brands, LLC Forum Brands, LLC [Member] Forum Brands, LLC Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Debt Disclosure [Abstract] 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 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 Upward adjustment, issuance proceeds (in percentage) Debt Instrument, Covenant, Equity Balance, Upward Adjustment, Percent Of Issuance Proceeds Debt Instrument, Covenant, Equity Balance, Upward Adjustment, Percent Of Issuance Proceeds Investment Type [Axis] Investment Type [Axis] Expiration Date Trading Arrangement Expiration Date 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] 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 Business/Productivity Software Business/Productivity Software [Member] Business/Productivity Software 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 Social/Platform Software Social/Platform Software [Member] Social/Platform Software 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 Investment Management Agreement - 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FlashParking, Inc. [Member] FlashParking, Inc. 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] Unobservable Inputs Investment Company, Investment Owned, Measurement Input Borrowings Debt Disclosure [Text Block] Amortized cost Cost Investment Owned, Cost Gross Additions Investments in and Advances to Affiliates, at Fair Value, Gross Additions Repayments of debt Repayments of Long-Term Debt 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 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 Fundings and purchases of investments Payment for Purchase, Investment, Operating Activity Investment income Investment Income, Net [Abstract] HomeLight, Inc. HomeLight, Inc. [Member] HomeLight, Inc. Gross proceeds raised Gross Proceeds Raised Sale of Stock, Consideration Received on Transaction Adoption Date Trading Arrangement Adoption Date 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 Hydrow, Inc. Hydrow, Inc. [Member] Hydrow, Inc. 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 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 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] Bitonic Technology Labs, Inc. Bitonic Technology Labs, Inc. [Member] Bitonic Technology Labs, Inc. Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] 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 Insider Trading Policies and Procedures [Line Items] Investment, Issuer Affiliation [Domain] Investment, Issuer Affiliation [Domain] Interest income from investments Interest Income, Operating 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] Greater than or equal to 50% Variable Rate Component Two [Member] Variable Rate Component Two Expected Recovery Rate Measurement Input, Expected Recovery Rate [Member] Measurement Input, Expected Recovery Rate (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 FabFitFun, Inc. FabFitFun, Inc. [Member] FabFitFun, Inc. Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Number of operating segment Number of Operating Segments Advisory Agreement Advisory Agreement [Member] Advisory Agreement Entity Central Index Key Weighted Average Weighted Average [Member] Current ATM Program Current At-The-Market Program [Member] Current At-The-Market Program All Adjustments to Compensation All Adjustments to Compensation [Member] Consumer Non-Durables Consumer Non-Durables [Member] Consumer Non-Durables Net assets Equity [Abstract] 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] Dividends declared ordinary (in dollars per share) Common Stock, Dividends, Per Share, Declared, Ordinary Common Stock, Dividends, Per Share, Declared, Ordinary Net cash (used in) provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Income Statement [Abstract] Document Transition Report Distributions from return of capital (in dollars per share) Investment Company, Tax Return of Capital Distribution, Per Share Federated Government Obligations Fund Federated Government Obligations Fund [Member] Federated Government Obligations Fund Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] 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 Net realized and unrealized gains/(losses) Gain (Loss) on Investments Operating expenses Operating Expenses [Abstract] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Investment, tax basis, unrealized gain Investment, Tax Basis, Unrealized Gain Dependent on milestones Contractual Obligation, Contingent Commitments Contractual Obligation, Contingent Commitments Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate 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 Other Commitments [Domain] Other Commitments [Domain] Basis spread on variable rate Investment, Basis Spread, Variable Rate City Area Code Unavailable commitments due to milestone restrictions Investment Company, Unavailable Commitments Investment Company, Unavailable Commitments All Individuals All Individuals [Member] Subsequent Events Subsequent Events [Text Block] Investment, Issuer Name [Domain] Investment, Issuer Name [Domain] Volatility Measurement Input, Price Volatility [Member] Debt fair value Debt Instrument, Fair Value Disclosure 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 Investments at fair value Financial Instruments, Owned, Principal Investments, at Fair Value Name Forgone Recovery, Individual Name 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] Travel & Leisure Travel & Leisure [Member] Travel & Leisure Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] 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 JOKR S.à r.l. JOKR S.à r.l. [Member] JOKR S.à r.l. Statement [Line Items] Statement [Line Items] O 2026 M10 Aggregate Dividends O 2026 M10 Aggregate Dividends [Member] O 2026 M10 Aggregate Dividends Total assets Assets Assets Monzo Bank Limited Monzo Bank Limited [Member] Monzo Bank Limited Interest expense and amortization of fees Interest Expense, Operating Preferred stock, issued (in shares) Preferred Stock, Shares Issued Industry Sector [Axis] Industry Sector [Axis] Excise tax expense Investment Company, Excise Tax Expense Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] 2026 Contractual Obligation, to be Paid, Remainder of Fiscal Year 2027 Notes, net 2027 Notes, Net [Member] 2027 Notes, Net PEO PEO [Member] Ocrolus, Inc. Ocrolus, Inc. [Member] Ocrolus, Inc. 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(in dollars per share) Regular Distributions Declared, Per Share Regular Distributions Declared, Per Share Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Underlying Securities Award Underlying Securities Amount Per Share Data Investment Company, Per Share Data [Abstract] Investment Company, Per Share Data Over-Allotment Option Over-Allotment Option [Member] Business Products and Services Business Products and Services [Member] Business Products and Services Minted, Inc. Minted, Inc. [Member] Minted, Inc. Schedule of Financial Highlights Investment Company, Financial Highlights [Table Text Block] Sonder Holdings Inc. Sonder Holdings Inc. [Member] Sonder Holdings Inc. Investment, Issuer Name [Axis] Investment, Issuer Name [Axis] Business to Business Marketplace Business to Business Marketplace [Member] Business to Business Marketplace Computer Hardware Computer Hardware [Member] Computer Hardware Greater than or equal to 75% Variable Rate Component One [Member] Variable Rate Component One 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] 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] Sales and excise tax payable, net Sales And Excise Tax Payable, Net Sales And Excise Tax Payable, Net Number of shares repurchased (in shares) Stock Repurchased During Period, Shares 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] Securities Act File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Facility utilization (in percentage) Debt Instrument, Facility Utilization Percentage Debt Instrument, Facility Utilization Percentage 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] Deferred credit facility costs Deferred Costs, Current Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Administration Agreement expenses Administrative Fees Expense Measure: Measure [Axis] Real Estate Services Real Estate Services [Member] Real Estate Services Fair value, beginning balance Fair value, ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value WorldRemit Group Limited WorldRemit Group Limited [Member] WorldRemit Group Limited Financial Institution and Services Financial Institution and Services [Member] Financial Institution and Services Frubana Inc. Frubana Inc. [Member] Frubana Inc. Less than 50% Variable Rate Component Three [Member] Variable Rate Component Three Underwriting Sales Load Payment Of Stock Issuance Costs, Underwriting Payment Of Stock Issuance Costs, Underwriting Equity Components [Axis] Equity Components [Axis] Class of Stock [Line Items] Class of Stock [Line Items] Distribution of Assets, Liabilities and Stockholders' Equity [Line Items] Distribution of Assets, Liabilities and Stockholders' Equity [Line Items] 8.11% 2028 Notes 8.11% 2028 Notes 8.11% 2028 Notes [Member] 8.11% 2028 Notes Entity Interactive Data Current 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 Muon Space, Inc. Muon Space, Inc. [Member] Muon Space, Inc. Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Small Business Termination Date Trading Arrangement Termination Date Other Commitments [Axis] Other Commitments [Axis] Aggregate principal balance, secured status threshold Debt Instrument, Covenant, Aggregate Principal Balance, Secured Status Threshold Debt Instrument, Covenant, Aggregate Principal Balance, Secured Status Threshold 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 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] 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] Curology, Inc. Curology, Inc. [Member] Curology, Inc. 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] 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] Undistributed earnings Investment Company, Undistributed Earnings Investment Company, Undistributed Earnings PIK interest Investment, Interest Rate, Paid in Kind Arcadia Power, Inc. Arcadia Power, Inc. [Member] Arcadia Power, Inc. Supplemental distributions declared per share (in dollars per share) Special Distributions Declared, Per Share Special Distributions Declared, Per Share 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] Local Phone Number 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] Non-binding Non-binding [Member] Non-binding Commitments and Contingencies (Note 7) Commitments and Contingencies Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] 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 Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Cart.com, Inc. Cart.com, Inc. [Member] Cart.com, Inc. Payment-in-kind interest income Payment-in-kind interest on investments Interest Income, Operating, Paid in Kind Executive Category: Executive Category [Axis] Deferred credit facility costs Payment of Deferred Credit Facility Costs Payment of Deferred Credit Facility Costs Investment company debt security, nonaccrual, fair value Investment Company Debt Security, Nonaccrual, Fair Value Investment Company Debt Security, Nonaccrual, Fair Value Database Software Database Software [Member] Database Software 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] All Award Types Award Type [Domain] Discounted Expected Return Valuation Technique, Discounted Expected Return [Member] Valuation Technique, Discounted Expected Return 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 Number of portfolio companies Investment Company, Financial Commitment to Investee, Number Of Portfolio Companies Investment Company, Financial Commitment to Investee, Number Of Portfolio Companies 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) Investments Not Valued At Fair Value Investments Not Valued At Fair Value [Member] Investments Not Valued At Fair Value PEO Name PEO Name Equity Investments Equity Investments [Member] Equity Investments Other accrued expenses and liabilities Accrued Liabilities and Other Liabilities Principal prepayments of accelerated income Accelerated Investment Income, Operating Accelerated Investment Income, Operating Investment, Issuer Affiliation [Axis] Investment, Issuer Affiliation [Axis] Excise tax paid Income Tax Paid, before Refund Received Distributions Declared September 30, 2026 O 2026 A Dividends [Member] O 2026 A Dividends 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 Information Services (B2C) Information Services (B2C) [Member] Information Services (B2C) Prepaid expenses and other assets Prepaid Expense and Other Assets Liability Class [Axis] Liability Class [Axis] During amortization period Variable Rate Component Four [Member] Variable Rate Component Four 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 Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Incentive fee percentage Management and Service Fees, Incentive Rate Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Shopping Facilitators Shopping Facilitators [Member] Shopping Facilitators 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] Debt Instrument [Axis] Subsequent Event [Table] Subsequent Event [Table] 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 Schedule of Debt Schedule of Debt [Table Text Block] Downward adjustment, issuance proceeds (in percentage) Debt Instrument, Covenant, Equity Balance, Downward Adjustment, Percent Of Issuance Proceeds Debt Instrument, Covenant, Equity Balance, Downward Adjustment, Percent Of Issuance Proceeds 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 Medical Software and Information Services Medical Software and Information Services [Member] Medical Software and Information Services 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] Ao1 Holdings, Inc. Ao1 Holdings, Inc. [Member] Ao1 Holdings, Inc. Measurement Input Type [Axis] Measurement Input Type [Axis] Risk Free Rate Measurement Input, Risk Free Interest Rate [Member] 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 Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Base management fee percentage Management and Service Fees, Base Rate Award Type Award Type [Axis] Fiton Inc. FitOn Inc. [Member] FitOn Inc. Distributions Declared December 30, 2025 S 2025 A Dividends [Member] S 2025 A Dividends Floor interest rate Debt Instrument, Floor Interest Rate Debt Instrument, Floor Interest Rate 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) Number of investments Investment Company, Number Of Investments Investment Company, Number Of Investments Distributions Declared December 30, 2022 S 2022 A Dividends [Member] S 2022 A Dividends Total distributions declared per share, Diluted (in dollars per share) Earnings Per Share, Diluted, Distributed 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] Commercial Services Commercial Services [Member] Commercial Services Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] 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 Farmer's Business Network, Inc. Farmer's Business Network, Inc. [Member] Farmer's Business Network, 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 Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Incode Technologies, Inc. Incode Technologies, Inc. [Member] Incode Technologies, Inc. Distributions Declared December 30, 2022 O 2022 A Dividends [Member] O 2022 A Dividends Grove Collaborative, Inc. Grove Collaborative, Inc. [Member] Grove Collaborative, Inc. Healthcare Services Healthcare Services [Member] Healthcare Services Interest cost Interest Expense, Debt, Excluding Amortization Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Omio Corp. (f/k/a GoEuro Corp.) Omio Corp. (f/k/a GoEuro Corp.) [Member] Omio Corp. (f/k/a GoEuro Corp.) Distributions Declared December 30, 2025 O 2025 A Dividends [Member] O 2025 A Dividends Prior ATM Program Prior At-The-Market Program [Member] Prior At-The-Market Program Sale of stock available for issuance amount Sale of Stock Available for Issuance Amount Sale of Stock Available for Issuance Amount Type of Term Sheet [Axis] Type of Term Sheet [Axis] Type of Term Sheet Communication Software Communication Software [Member] Communication Software 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 Accretion of end-of-term payments Investment Interest Rate, Accretion Of End Of Term Payments Investment Interest Rate, Accretion Of End Of Term Payments 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] 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 Network Management Software Network Management Software [Member] Network Management Software 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] Consumer Retail Consumer Retail [Member] Consumer Retail Name Awards Close in Time to MNPI Disclosures, Individual Name Credit facility, average outstanding borrowings Line of Credit Facility, Average Outstanding Amount Investment, Identifier [Axis] Investment, Identifier [Axis] Food & Drug Food & Drug [Member] Food & Drug 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] Common Stock, Shares Issued, Not Disclosed Common Stock, Shares Issued, Not Disclosed Common Stock, Shares Issued, Not Disclosed General and administrative expenses General and Administrative Expense Outfittery GMBH Outfittery GMBH [Member] Outfittery GMBH 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 E-Commerce - Clothing and Accessories E-Commerce - Clothing and Accessories [Member] E-Commerce - Clothing and Accessories Preferred stock, par value $0.01 per share (50,000 shares authorized; no shares issued and outstanding, respectively) Preferred Stock, Value, Issued 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 Adjustment to Compensation: Adjustment to Compensation [Axis] 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 Accretion of discount Investment Interest Rate, Accretion Of Discount Investment Interest Rate, Accretion Of Discount S 2026 M8 First Installment Dividends S 2026 M8 First Installment Dividends [Member] S 2026 M8 First Installment Dividends 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 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 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 Revolut Ltd Revolut Ltd [Member] Revolut Ltd Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Paid-in capital in excess of par value Additional Paid-in Capital [Member] Entity Filer Category Non-Qualifying Assets Non-Qualifying Assets [Member] Non-Qualifying Assets Dividends [Axis] Dividends [Axis] Name Trading Arrangement, Individual Name Expiring during: Contractual Obligation, Fiscal Year Maturity [Abstract] Total distributions declared per share, basic (in dollars per share) Total distributions declared per share, basic (in dollars per share) Earnings Per Share, Basic, Distributed Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Term Measurement Input, Expected Term [Member] Company Selected Measure Amount Company Selected Measure Amount Net change in unrealized gains (losses) on Level 3 investments held Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) Entity Address, Address Line Two Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income Flag Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Schedule of Stock by Class [Table] Stock, Class of Stock [Table] Total investment and other income Gross Investment Income, Operating Distributions paid Payments of Distributions to Affiliates 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 Interest rate, below investment grade event Debt Instrument, Interest Rate, Below Investment Grade Event Debt Instrument, Interest Rate, Below Investment Grade Event Investments Restricted On Sales Investments Subject To Restrictions On Sales [Member] Investments Subject To Restrictions On Sales Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Investments in and Advances to Affiliates, at Fair Value [Roll Forward] Investments in and Advances to Affiliates, at Fair Value [Roll Forward] Interest rate EOT Investment, Interest Rate, End of Term Investment, Interest Rate, End of Term Income incentive fee waiver Investment Company, Incentive Fee Waived, Income-Based Award Timing Method 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 Minimum stockholders' equity balance Debt Instrument, Covenant, Equity Balance, Minimum Debt Instrument, Covenant, Equity Balance, Minimum 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] Statement [Table] Statement [Table] 2026 Notes, net 2026 Notes, Net [Member] 2026 Notes, Net Restatement Determination Date: Restatement Determination Date [Axis] Other Financial Services Other Financial Services [Member] Other Financial Services Schedule of Interest Expense and Amortization of Fees Interest Expense and Amortization of Fees [Table Text Block] Interest Expense and Amortization of Fees Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Investment, variable interest rate, type flag Investment, Variable Interest Rate, Type [Extensible Enumeration] Healthcare Technology Systems Healthcare Technology Systems [Member] Healthcare Technology Systems Discount for Lack of Marketability Measurement Input, Discount for Lack of Marketability [Member] Nakdcom One World AB Nakdcom One World AB [Member] Nakdcom One World AB Semiconductors Semiconductors [Member] Semiconductors Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Prime Rate [Member] Secured Overnight Financing Rate (SOFR) [Member]