SBA Debentures Issued on December 20, 2021
S B A Debentures Issued On December Twenty Two Thousand And Twenty One [Member]
SBA debentures issued on december twenty, two thousand and twenty one.
Non-control/Non-affiliate investments
Investment, Unaffiliated Issuer [Member]
Non-control/Non-affiliate investments
Realized Gain (Loss)
Realized Investment Gains (Losses)
Award Timing Predetermined
Award Timing Predetermined [Flag]
Entity File Number
Capital in excess of par value
Additional Paid-in Capital [Member]
Tabular List, Table
Tabular List [Table Text Block]
Investments
Schedule of Investments [Text Block]
Debt Investments in Wholly-Owned Subsidiaries
Debt Investments In Wholly-Owned Subsidiaries [Member]
Debt Investments In Wholly-Owned Subsidiaries
Unsecured Debt Two
Unsecured Debt Two [Member]
Unsecured Debt Two
Supplemental Dividend Q4 2025
S 2025 Q4 Dividends [Member]
S 2025 Q4 Dividends
Schedule of Related Party Transactions
Schedule of Related Party Transactions [Table Text Block]
SBA Debentures Issued on November 30, 2021
S B A Debentures Issued On November Thirty Two Thousand And Twenty One [Member]
SBA debentures issued on november thirty, two thousand and twenty one.
Supplemental dividends amount to be paid (in dollars per share)
Total Supplemental Dividends Amount To Be Paid Per Share
Total Supplemental Dividends Amount To Be Paid Per Share
Escrow Receivables
Escrow Receivable [Member]
Escrow Receivable
Debt Investments
Debt Securities [Member]
Measurement Basis
Measurement Basis [Axis]
Adjustment to Compensation:
Adjustment to Compensation [Axis]
Related Party Transactions
Related Party Transactions Disclosure [Text Block]
Current price per par value (in dollars per share)
Current Price Per Par Value
Current Price Per Par Value.
Named Executive Officers, Footnote
Named Executive Officers, Footnote [Text Block]
Net Change in Unrealized Appreciation (Depreciation)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease)
Proceeds from the sale of equity and warrant investments
Proceeds From Disposition Of Investment, Equity And Warrants Investments, Operating Activity
Proceeds From Disposition Of Investment, Equity And Warrants Investments, Operating Activity
Schedule Of Stock By Class [Table]
Stock, Class of Stock [Table]
Receivable from related party
Receivable From Related Party
Receivable From Related Party
Adjustment to Compensation, Amount
Adjustment to Compensation Amount
Percentage of Total Portfolio
Concentration Risk, Percentage
Other assets
Increase (Decrease) in Other Operating Assets
Investments subject to investment valuation policy, percentage
Percentage Of Total Assets Subjected To Valuation Of Investment Policy
Percentage of total assets subjected to valuation of investment policy.
Stock-based compensation and amortization of restricted stock grants
Share-Based Payment Arrangement, Noncash Expense
Derivative asset, notional amount
Derivative Asset, Notional Amount
Employee Stock Option
Unvested common stock options
Share-Based Payment Arrangement, Option [Member]
After 5 years
Contractual Obligation, to be Paid, after Year Five
Cash and Cash Equivalents and Restricted Cash
Cash and Cash Equivalents, Policy [Policy Text Block]
2031 Asset-Backed Notes
Two Thousand Thirty One Asset Backed Notes [Member]
Two thousand thirty one asset-backed notes.
Antidilutive Securities
Antidilutive Securities [Axis]
Total net assets
Beginning balance
Ending balance
Net assets at end of period
Equity, Attributable to Parent
Insider Trading Policies and Procedures [Line Items]
Common stock authorized (in shares)
Common Stock, Shares Authorized
Public offering, net of offering expenses (in shares)
Number of Shares Issued (in shares)
Stock Issued During Period, Shares, New Issues
Net realized gain (loss):
Net Realized Gain Loss [Abstract]
Net realized gain (loss)
Cash and cash equivalents
Cash and Cash Equivalents, Fair Value Disclosure
Portion at Fair Value Measurement
Portion at Fair Value Measurement [Member]
Maximum
Maximum [Member]
Investment fundings assigned to, directly originated or funded by the Adviser Funds
Adviser Subsidiary Investment Funding
Adviser Subsidiary Investment Funding
Non-PEO NEO Average Total Compensation Amount
Non-PEO NEO Average Total Compensation Amount
Lease and license obligations, 1-3 years
Lessee, Operating Lease, Liability, to be Paid, Year Two and Three
Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following Third fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Schedule of Unvested Restricted Stock Equity
Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]
Investment, Identifier [Axis]
Investment, Identifier [Axis]
Adjustment to Non-PEO NEO Compensation Footnote
Adjustment to Non-PEO NEO Compensation Footnote [Text Block]
Investments, at fair value:
Investments at Fair Value
Fair value of investments (in millions)
Investments, fair value, beginning balance
Investments, fair value, ending balance
Investment Owned, Fair Value
Investment Holding [Table]
Investment Holding [Table]
Investment Holding [Table]
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Control investments
Investment, Affiliated Issuer, Controlled [Member]
Debt instrument, collateral
Debt Instrument, Collateral
Non-Rule 10b5-1 Arrangement Terminated
Non-Rule 10b5-1 Arrangement Terminated [Flag]
Entity Shell Company
Weighted average debt outstanding
Long-Term Debt, Average Amount Outstanding
Debt Instrument [Table]
Schedule of Long-Term Debt Instruments [Table]
Schedule of Components of Interest Expense, Related Fees and Cash Paid for Interest Expense for Debt
Schedules Of Interest Expense, Related Debt Fees, And Losses On Debt Extinguishment [Table Text Block]
Schedules Of Interest Expense, Related Debt Fees, And Losses On Debt Extinguishment [Table Text Block]
Issuance of debt
Proceeds from Issuance of Debt
Service vesting awards granted
Share-Based Compensation Aggregate Intrinsic Value, Granted
Share-Based Compensation Aggregate Intrinsic Value, Granted
Percentage of equity investments held in portfolio companies
Percent Greater Five Percent Fair Value Equity
Percent greater five percent fair value equity.
Statement of Stockholders' Equity [Abstract]
Statement of Stockholders' Equity [Abstract]
Award Timing MNPI Considered
Award Timing MNPI Considered [Flag]
Total interest expense and fees
Interest Expense, Operating
Debt Investments Maturing in Less than One Year
Debt Maturing Within One Year [Member]
Debt Maturing Within One Year [Member]
Total Investments Benchmark
Total Investments Benchmark [Member]
Total Investments Benchmark
Document Fiscal Period Focus
Supplemental dividends amount to be paid each quarter (in dollars per share)
Supplemental Dividends Amount To Be Paid Each Quarter Per Share
Supplemental Dividends Amount To Be Paid Each Quarter Per Share
Total Exit Fees Receivable
Exit Fees Receivables
Exit fees receivable.
Award Timing Method
Award Timing Method [Text Block]
Defense Technologies
Defense Technologies [Member]
Defense Technologies
Revenue Multiple
Measurement Input, Revenue Multiple [Member]
Award Type [Axis]
Award Type [Axis]
Escrow Receivables
Escrow And Other Investment Receivable [Member]
Escrow And Other Investment Receivable
Stock-Based Compensation
Share-Based Payment Arrangement [Policy Text Block]
Investment, Name [Domain]
Investment, Name [Domain]
Settlement Date
Derivative, Contract End Date
Trading Symbol
Member Units
Member Units [Member]
Issuance of common stock under equity-based award plans (in shares)
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture
S 2026 Q1 Dividends
S 2026 Q1 Dividends [Member]
S 2026 Q1 Dividends
Entity Address, City or Town
Non-PEO NEO Average Compensation Actually Paid Amount
Non-PEO NEO Average Compensation Actually Paid Amount
Income Statement Location [Domain]
Statement of Income Location, Balance [Domain]
Senior Secured Debt
Senior Secured Debt [Member]
Senior secured debt.
Compensation Actually Paid vs. Other Measure
Compensation Actually Paid vs. Other Measure [Text Block]
Entity Emerging Growth Company
Warrant investments
Warrants
Warrant Investment [Member]
Warrant Investment.
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]
Debt issuance cost, net of accumulated amortization
Debt Issuance Costs, Net
Purchases
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases
SMBC LC Facility
SMBC LC Facility [Member]
SMBC LC Facility [Member]
Shares of common stock outstanding ($0.001 par value and 300,000 authorized) (in shares)
Beginning balance (in shares)
Ending balance (in shares)
Common stock outstanding (in shares)
Common Stock, Shares, Outstanding
Other assets and liabilities
Other Assets, Fair Value Disclosure
Investment Funds & Vehicles
Investment Funds And Vehicles [Member]
Investment funds & vehicles.
Base Dividend Q2 2025
O 2025 Q2 Dividends [Member]
O 2025 Q2 Dividends
SBA Debentures Issued on December 23, 2021
S B A Debentures Issued On December Twenty Three Two Thousand And Twenty One [Member]
SBA debentures issued on december twenty three, two thousand and twenty one.
Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year
Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member]
Accounts payable and accrued liabilities
Accounts Payable and Accrued Liabilities
Total employee compensation
Employee Compensation
Total amount expense for salary, wage, profit sharing; incentive and share-based compensation; and other employee benefit.
Shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Entity Address, Postal Zip Code
Restatement Determination Date
Restatement Determination Date
Net investment income (in dollars per share)
Investment Company, Gain (Loss) On Net Investment, Per Share
Investment Company, Gain (Loss) On Net Investment, Per Share
Interest rate plus applicable margin adjustment
Debt Instrument, Basis Spread on Variable Rate
Other assets
Other Assets
Beginning balance
Ending balance
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Document Information [Line Items]
Purchases of investments
Payment for Purchase, Investment, Operating Activity
Pension Adjustments Service Cost
Pension Adjustments Service Cost [Member]
Fair Value Hierarchy and NAV
Fair Value Hierarchy and NAV [Axis]
Aggregate gross unrealized depreciation
Investment, Tax Basis, Unrealized Loss
Distributions
Stockholders' Equity, Policy [Policy Text Block]
Compensation Actually Paid vs. Company Selected Measure
Compensation Actually Paid vs. Company Selected Measure [Text Block]
Dividend payable per share (in dollars per share)
Dividends Payable, Amount Per Share
All Trading Arrangements
All Trading Arrangements [Member]
Equity Awards Adjustments, Footnote
Equity Awards Adjustments, Footnote [Text Block]
Total Shareholder Return Vs Peer Group
Total Shareholder Return Vs Peer Group [Text Block]
Investment, interest rate, paid in cash
Interest rate and floor, fixed
Investment, Interest Rate, Paid in Cash
Accretion of loan exit fees
Accretion Of Loan Exit Fees
Accretion Of Loan Exit Fees
Unvested shares beginning of period (in shares)
Unvested shares end of period (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Abstract]
SMBC Facility
S M B C Facility [Member]
SMBC facility.
Secured Borrowings
Securities Borrowed And Loan [Policy Text Block]
Securities Borrowed And Loan
Net cash provided by (used in) operating activities
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Sales
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales
Subsequent event
Subsequent Event [Member]
System Software
System Software [Member]
System Software
Adviser Subsidiary
Adviser Subsidiary [Member]
Adviser subsidiary.
Commitments And Contingencies [Table]
Commitments And Contingencies [Table]
Commitments and contingencies.
Equity Valuation Assumption Difference, Footnote
Equity Valuation Assumption Difference, Footnote [Text Block]
PEO Total Compensation Amount
PEO Total Compensation Amount
Investment Type Concentration Risk
Investment Type Concentration Risk [Member]
Investment Type Concentration Risk Member
Long-Term Debt, Type
Long-Term Debt, Type [Axis]
Money Market Fund
Money Market Funds [Member]
Investment, interest rate, paid in kind
Investment, Interest Rate, Paid in Kind
Schedule of Investments [Abstract]
Schedule of Investments [Abstract]
Majority Owned Control Investments
Majority Owned Control Investments [Member]
Majority Owned Control Investments [Member]
Equity Components
Equity Components [Axis]
Investment Company, Financial Highlights [Abstract]
Investment Company, Financial Highlights [Abstract]
Non-Rule 10b5-1 Arrangement Adopted
Non-Rule 10b5-1 Arrangement Adopted [Flag]
Taxable net realized gains (losses) per share (in dollars per share)
Taxable Net Realized Gain (Loss) Per Share
Taxable net realized gain (loss) per share.
February 2029 Notes
February Two Thousand Twenty Nine Notes [Member]
February Two Thousand Twenty Nine Notes
Schedule of Contractual Obligations
Contractual Obligation, Fiscal Year Maturity [Table Text Block]
Entity Address, State or Province
Total interest and dividend income
Interest & Dividend Income
Total PIK interest income
Interest and Dividend Income, Operating
Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table]
Antidilutive Security, Excluded EPS Calculation [Table]
Individual:
Individual [Axis]
Lease and license obligations, 3-5 years
Lessee, Operating Lease, Liability, to be Paid, Year Four and Five
Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in fifth fiscal year following Third fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
Contingent earn out payment receivable (as a percent)
Contingent Earn Out Payment, Amount Receivable, Percent
Contingent Earn Out Payment, Amount Receivable, Percent
SBIC V
Hercules SBIC V, L.P. [Member]
Hercules SBIC V, L.P.
Forgone Recovery, Explanation of Impracticability
Forgone Recovery, Explanation of Impracticability [Text Block]
Supplemental Dividend Q2 2025
S 2025 Q2 Dividends [Member]
S 2025 Q2 Dividends
Entity Interactive Data Current
1-month SOFR
One Month SOFR [Member]
S 2026 A Dividends
S 2026 A Dividends [Member]
S 2026 A Dividends
Investment cost
Investment Owned, Cost
Debt, 3-5 years
Long-Term Debt, Maturity, Year Four and Five
Net asset value per share (in dollars per share)
Net asset value at beginning of period (in dollars per share)
Net asset value at ending of period (in dollars per share)
Entity Central Index Key
PEO Name
PEO Name
Conversion price (in dollars per share)
Debt Instrument, Convertible, Conversion Price
Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year
Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Outstanding Aggregate Erroneous Compensation Amount
Outstanding Aggregate Erroneous Compensation Amount
Beginning balance
Ending balance
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value
Tranche one
Share-Based Payment Arrangement, Tranche One [Member]
Debt Investments Benchmark
Debt Investments Benchmark [Member]
Debt Investments Benchmark
Exercise Price
Award Exercise Price
Entity Filer Category
Number of investments held
Investments Held By Number Of Companies
Investments held by number of companies.
Class of Stock
Class of Stock [Domain]
Unrecognized compensation costs
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount
Gross Proceeds
Common - Gross Proceeds [Member]
Common - Gross Proceeds
Other investment income
Other Interest Income [Member]
Other Interest Income [Member]
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Balance Sheet Location [Axis]
Statement of Financial Position Location, Balance [Axis]
Vesting [Domain]
Vesting [Domain]
Schedule of Investments in and Advances to Affiliates
Schedule of Investments in and Advances to Affiliates, Schedule of Investments [Table Text Block]
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]
Entity Address, Address Line One
Entity Address, Address Line Two
SBA Debentures Issued on November 1, 2021
S B A Debentures Issued On November One Two Thousand And Twenty One [Member]
SBA debentures issued on november one, two thousand and twenty one.
Total net operating expenses
Operating Expenses, Net
Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. Net of allocations to the Adviser Subsidiary.
Aggregate gross unrealized appreciation
Investment, Tax Basis, Unrealized Gain
Investments
Investments [Domain]
Industry Sector
Industry Sector [Axis]
Investment income:
Net Investment Income [Abstract]
Fair Value as of Grant Date
Award Grant Date Fair Value
Liquidation
Valuation Technique Liquidation [Member]
Valuation technique, liquidation.
Earnings (loss), net of distributions attributable to common shares
Undistributed Earnings, Basic
Stock-based compensation
Employee Benefits and Share-Based Compensation
Compensation and benefits
Labor and Related Expense
Preferred Series BB
Preferred Series B B [Member]
Preferred Series BB.
System Software
Consumer And Business Services [Member]
Consumer & Business Services.
Common shares issuable (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements
Granted (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period
Royalty Contract
Royalty Contract [Member]
Royalty Contract Member
Forfeited (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Related Party Transaction [Line Items]
Related Party Transaction [Line Items]
Add: Income impact of assumed conversion of 2028 Convertible Notes
Dilutive Securities, Effect on Basic Earnings Per Share, Dilutive Convertible Securities
S B A Debentures Issued on May 9, 2025
S B A Debentures Issued On May Nine Two Thousand And Twenty Five [Member]
S B A Debentures Issued On May Nine Two Thousand And Twenty Five
Document Quarterly Report
Fee income - expired commitments
Accelerated Fee Income - Expired Commitments [Member]
Accelerated Fee Income - Expired Commitments [Member]
Approximate Fair Value
Long-Term Debt, Fair Value
Schedule of Quantitative Information of Fair Value Measurements
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
Changed Peer Group, Footnote
Changed Peer Group, Footnote [Text Block]
Debt, 1-3 years
Long-Term Debt, Maturity, Year Two and Three
2028
Lessee, Operating Lease, Liability, to be Paid, Year Two
Accelerated fee income - early repayments
Accelerated Fee Income - Early Repayments [Member]
Accelerated Fee Income - Early Repayments [Member]
Adjustment To PEO Compensation, Footnote
Adjustment To PEO Compensation, Footnote [Text Block]
Schedule of Investments in and Advances to Affiliates
Investments in and Advances to Affiliates [Table Text Block]
Germany
GERMANY
Investment Type
Investment Type [Axis]
2027
Unfunded Commitments Due In One Year
Unfunded Commitments Due In One Year
Title
Trading Arrangement, Individual Title
Peer Group Total Shareholder Return Amount
Peer Group Total Shareholder Return Amount
MUFG Bank Facility
M U F G Bank Facility [Member]
MUFG bank facility.
Non-PEO NEO
Non-PEO NEO [Member]
Total fee income
Fee Income
Fee Income
Equity distribution agreement remaining available shares (in shares)
Equity Distribution Agreement Remaining Available Shares
Equity Distribution Agreement Remaining Available Shares
Derivative liability, notional amount
Derivative Liability, Notional Amount
Award Type [Domain]
Award Type [Domain]
Investments in and Advances to Affiliates [Abstract]
Investments in and Advances to Affiliates [Abstract]
Lease and license obligations, less than 1 year
2027
Lessee, Operating Lease, Liability, to be Paid, Year One
Schedule of Debt Issuance Costs, Net of Accumulated Amortization
Schedule Of Debt Issuance Costs Net Of Accumulated Amortization [Table Text Block]
Schedule of debt issuance costs net of accumulated amortization.
Equity Awards Adjustments
Equity Awards Adjustments [Member]
Pension Benefits Adjustments, Footnote
Pension Benefits Adjustments, Footnote [Text Block]
S B A Debentures Issued on June 12, 2025
S B A Debentures Issued On June Twelve Two Thousand And Twenty Five [Member]
S B A Debentures Issued On June Twelve Two Thousand And Twenty Five
Canada
CANADA
Compensation Amount
Outstanding Recovery Compensation Amount
Switzerland
SWITZERLAND
Debt Instrument, Name
Debt Instrument, Name [Domain]
Recovery of Erroneously Awarded Compensation Disclosure [Line Items]
Fair Value
Estimate of Fair Value Measurement [Member]
Healthcare Services, Other
Healthcare Services, Other [Member]
Healthcare services, other.
Unvested restricted stock awards
Unvested Restricted Stock Awards [Member]
Unvested restricted stock awards.
Capitalized PIK Interest
Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Paid-In Kind
Fair Value, Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset, Paid-In Kind
Schedule Of Investments [Line Items]
Schedule of Investments [Line Items]
MNPI Disclosure Timed for Compensation Value
MNPI Disclosure Timed for Compensation Value [Flag]
Denominator
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Debt, less than 1 year
Long-Term Debt, Maturity, Year One
Financial Instruments
Financial Instruments [Domain]
Purchases
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases
Aggregate Pension Adjustments Service Cost
Aggregate Pension Adjustments Service Cost [Member]
Ratios and supplemental data:
Investment Company, Financial Ratios [Abstract]
HC IV and SBIC V
Hercules Capital Four And SBIC [Member]
Hercules Capital Four And SBIC
Minimum
Minimum [Member]
Investment Funds & Vehicles measured at Net Asset Value
Private Equity Funds, Non-US [Member]
Net unrealized appreciation (depreciation) (in dollars per share)
Investment Company, Unrealized Gain (Loss) on Investment, Per Share
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Company Selected Measure Name
Company Selected Measure Name
Space Technologies
Space Technologies [Member]
Space Technologies
Fair Value Measurement
Fair Value Measurement [Domain]
Commitments And Contingencies [Line Items]
Commitments And Contingencies [Line Items]
Commitments and contingencies.
Debt
Debt Disclosure [Text Block]
Aggregate Available
Trading Arrangement, Securities Aggregate Available Amount
Portfolio turnover rate
Investment Company, Portfolio Turnover
Cash paid for amounts included in the measurement of lease liabilities
Operating Lease, Payments
Stock Appreciation Rights (SARs)
Stock Appreciation Rights (SARs) [Member]
Cash and cash equivalents, held in foreign currency, cost basis
Cash and Cash Equivalent, Held in Foreign Currency, Acquisition Cost
Numerator for diluted change in net assets per common share
Net Income (Loss) Available to Common Stockholders, Diluted
Gibraltar Business Capital, LLC
Gibraltar Acquisition LLC [Member]
Gibraltar Acquisition LLC
Collateral Held [Domain]
Collateral Held [Domain]
Premium/(Discount)
Measurement Input Premium (Discount), Netting [Member]
Measurement input, premium/(discount), netting
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Tranche two
Share-Based Payment Arrangement, Tranche Two [Member]
Diluted (in shares)
Weighted average common shares outstanding assuming dilution (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Segments
Segment Reporting, Policy [Policy Text Block]
Financial Support to Nonconsolidated Legal Entity [Axis]
Financial Support to Nonconsolidated Legal Entity [Axis]
Non-GAAP Measure Description
Non-GAAP Measure Description [Text Block]
Entity Small Business
Total Investments including cash and cash equivalents and derivative instruments
Including Cash And Cash Equivalents And Derivative Instruments [Member]
Including Cash And Cash Equivalents And Derivative Instruments
Offering expenses
Payments of Stock Issuance Costs
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Abstract]
Common stock authorized (in shares)
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance
Expected Proceeds
Valuation Technique Expected Proceeds [Member]
Valuation Technique Expected Proceeds
Document Transition Report
Summary of Investment Holdings [Line Items]
Summary of Investment Holdings [Line Items]
Restricted stock and option expense related to director compensation
APIC, Share-Based Payment Arrangement, Other, Increase for Cost Recognition
Taxable net realized gains (losses)
Taxable Net Realized Gain (Loss)
Taxable net realized gain loss.
Schedule of Fair Value Hierarchy of Outstanding Borrowings
Fair Value Disclosure of Asset and Liability Not Measured at Fair Value [Table Text Block]
Loan fees
Debt Related Commitment Fees and Debt Issuance Costs
Underlying Securities
Award Underlying Securities Amount
Spillover amount per share
Spillover Amount Per Share [Member]
SpilloverAmountPerShare [Member]
Investments owned acquisition date
Investments Owned Acquisition Date
Investments owned acquisition date.
Equity Component
Equity Component [Domain]
Biotechnology Tools
Biotechnology Tools [Member]
Biotechnology Tools.
Document Period End Date
Tangible assets (in millions)
Tangible Assets
Tangible assets held.
Income Taxes
Income Tax Disclosure [Text Block]
Total
Contractual Obligation
Unused facility and other fees (loan fees)
Loan Portfolio Expense
“Last-out” with security interest in all of the assets
Last-out with Security Interest in all of the Assets [Member]
Last-out with Security Interest in all of the Assets [Member]
Collateral Type Concentration Risk
Collateral Type Concentration Risk [Member]
Collateral Type Concentration Risk Member
United Kingdom
UNITED KINGDOM
Awards Close in Time to MNPI Disclosures, Table
Awards Close in Time to MNPI Disclosures [Table Text Block]
Schedule Of Investments [Table]
Schedule of Investments [Table]
Convertible Note Analysis
Valuation, Income Approach [Member]
Investment, interest rate, cap
Investment Interest Rate Cap
Investment Interest Rate Cap
Amortization of original issue discounts
Amortization of Debt Discount (Premium)
Document Type
Significant Unobservable Inputs (Level 3)
Unobservable Inputs (Level 3)
Fair Value, Inputs, Level 3 [Member]
Earnings Per Share
Earnings Per Share [Text Block]
Name
Outstanding Recovery, Individual Name
Loss Contingencies [Table]
Loss Contingencies [Table]
Capital in excess of par value
Additional Paid in Capital
Service-Vesting Awards
Service Vesting Awards [Member]
Service-vesting awards.
Net unrealized appreciation (depreciation) over cost for U.S. federal income tax purposes
Net unrealized appreciation (depreciation) over cost for U.S. federal income tax purposes
Investment, Tax Basis, Unrealized Gain (Loss)
Total net realized gain (loss) and net change in unrealized appreciation (depreciation)
Gain (Loss), Investment and Derivative, Operating, and Foreign Currency Transaction, before Tax
Statistical Measurement
Statistical Measurement [Axis]
Black Crow AI, Inc. affiliates
Black Crow A I Inc [Member]
Black Crow AI, Inc.
Line of credit facility, unused capacity, commitment fee percentage
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Aggregate Erroneous Compensation Amount
Aggregate Erroneous Compensation Amount
Peer Group Issuers, Footnote
Peer Group Issuers, Footnote [Text Block]
Numerator for basic change in net assets per common share
Net Income (Loss) Available to Common Stockholders, Basic
Other liabilities
Other Liabilities, Fair Value Disclosure
Schedule of Net Realized and Unrealized Gains and Losses
Derivative Instruments, Gain (Loss) [Table Text Block]
Total gross operating expenses
Operating Expenses
Shares outstanding at end of period (in shares)
Shares, Outstanding
Quoted Prices in Active Markets for Identical Assets (Level 1)
Identical Assets (Level 1)
Fair Value, Inputs, Level 1 [Member]
Common Stock Par Value $0.001 Per Share
Common Stock Par Value Zero Point Zero Zero One Per Share [Member]
Common stock par value zero point zero zero one per share.
Accrued liabilities
Increase (Decrease) in Accrued Liabilities
Schedule Of Related Party Transactions By Related Party [Table]
Related Party Transaction [Table]
Diluted (in dollars per share)
Earnings Per Share, Diluted
Net change in unrealized appreciation (depreciation):
Net Change In Unrealized Appreciation Depreciation [Abstract]
Net change in unrealized appreciation (depreciation).
Supplemental disclosures of cash flow information and non-cash investing and financing activities:
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Debt instrument, payment terms, description
Debt Instrument, Payment Terms
SBA Debentures Issued on December 12, 2024
S B A Debentures Issued On December Twelve Two Thousand And Twenty Four [Member]
S B A Debentures Issued On December Twelve Two Thousand And Twenty Four
Dividends [Axis]
Dividends [Axis]
Distributions reinvested in common stock
Stock Issued During Period, Value, Dividend Reinvestment Plan
S B A Debentures Issued on June 25, 2025
S B A Debentures Issued On June Twenty Five Two Thousand And Twenty Five [Member]
S B A Debentures Issued On June Twenty Five Two Thousand And Twenty Five
SBA Debentures Issued on November 8, 2024
S B A Debentures Issued On November Eight Two Thousand And Twenty Four [Member]
S B A Debentures Issued On November Eight Two Thousand And Twenty Four
Number of available credit facilities
Number Of Available Credit Facilities
Number Of Available Credit Facilities
Shares retired on vesting of equity-based awards
Stock Repurchased and Retired During Period, Value
Comprehensive Income
Comprehensive Income, Policy [Policy Text Block]
Other Assets
Other Assets Policy [Policy Text Block]
Other Assets Policy.
Less: imputed interest & other items
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Debt Issuance Costs
Debt Issuance Costs Policy [Policy Text Block]
Debt issuance costs policy.
Income tax, including excise tax, paid
Income Taxes Paid, Net
Diversified Financial Services
Medical Devices And Equipment [Member]
Medical devices & equipment.
March 2026 A Notes
March Two Thousand Twenty Six A Notes [Member]
March two thousand twenty six a notes.
Consumer & Business Products
Consumer & Business Products [Member]
Consumer & Business Products
Principal Outstanding
Outstanding principal balances
Long-Term Debt, Gross
Total net realized gain (loss)
Realized Investment Gains (Loss) And Gain (Loss) On Extinguishment Of Debt
Realized Investment Gains (Loss) And Gain (Loss) On Extinguishment Of Debt
Total
Lessee, Operating Lease, Liability, to be Paid
Net investment income before gains and losses per common share:
Per share data
Investment Company, Investment Income (Loss) from Operations, Per Share [Abstract]
Investment, basis spread, variable rate
Investment, Basis Spread, Variable Rate
Shares (in shares)
Investment Owned, Balance, Shares
Dividends [Domain]
Dividends [Domain]
Expiration Date
Trading Arrangement Expiration Date
Basic (in dollars per share)
Investment Company, Investment Income (Loss), Per Share, Basic
Schedule of Fair Value and Location of the Company's Derivative Instruments
Schedule of Foreign Exchange Contracts, Statement of Financial Position [Table Text Block]
Amounts received by the Company from the Adviser Funds relating to assigned investments
Related Party Transaction, Amounts of Transaction
Medical Devices & Equipment
Medical Devices & Equipment [Member]
Medical Devices & Equipment
Line of credit facility, covenant terms
Line of Credit Facility, Covenant Terms
Total PIK interest income
Accretion of paid-in-kind interest
Interest Income, Operating, Paid in Kind
Geographic Concentration Risk
Geographic Concentration Risk [Member]
2028
Unfunded Commitments Due In Second Year
Unfunded commitments due in second year.
Compensation Actually Paid vs. Net Income
Compensation Actually Paid vs. Net Income [Text Block]
June 2030 Notes
June Two Thousand And Thirty Notes [Member]
June Two Thousand And Thirty Notes
Preferred Series A
Series A Preferred Stock [Member]
Entity Current Reporting Status
Medical Devices
Medical Devices [Member]
Medical Devices
Schedule of Investments Portfolio
Schedule of SBIC Investments
Investment Holdings, Schedule of Investments [Table Text Block]
Awards Close in Time to MNPI Disclosures
Awards Close in Time to MNPI Disclosures [Table]
Collateral Held [Axis]
Collateral Held [Axis]
Consolidated Entities
Consolidated Entities [Domain]
Ratio of total expense to average net assets
Investment Company, Expense Ratio, after Fee Waiver and Incentive Fee Deduction
Repayment of accrued interest
Repayment Of Accrued Interest
Repayment Of Accrued Interest
Industry Sub Sector Investments Benchmark
Industry Sub Sector Investments Benchmark [Member]
Industry Sub Sector Investments Benchmark
Financial Instrument
Financial Instrument [Axis]
Statement of Financial Position [Abstract]
Statement of Financial Position [Abstract]
Executive Category:
Executive Category [Axis]
Foreign currency forward contract
Foreign Exchange Forward [Member]
Repayment of debt
Repayments of debt
Repayments of Debt
Debt average amount outstanding
Line of Credit Facility, Average Outstanding Amount
Market Comparable Companies
Valuation, Market Approach [Member]
Current Fiscal Year End Date
Senior Secured First Lien
Senior Secured First Lien [Member]
Senior Secured First Lien [Member]
Ireland
IRELAND
SBA Debentures Issued on February 5, 2025
S B A Debentures Issued On February Five Two Thousand And Twenty Five [Member]
S B A Debentures Issued On February Five Two Thousand And Twenty Five
Weighted Average Grant Date Fair Value per Share
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Israel
ISRAEL
Earnings Per Share, Basic, by Common Class, Including Two-Class Method [Table]
Earnings Per Share, Basic, by Common Class, Including Two-Class Method [Table]
Equity Awards Adjustments, Excluding Value Reported in Compensation Table
Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member]
Hypothetical Market Yield
Measurement Input Hypothetical Market Yield [Member]
Measurement input, hypothetical market yield.
SBA Debentures Issued on December 28, 2021
S B A Debentures Issued On December Twenty Eight Two Thousand And Twenty One [Member]
SBA debentures issued on december twenty eight, two thousand and twenty one.
Dividend income
Dividend Income [Member]
Dividend Income
September 2026 Notes
September Two Thousand Twenty Six Notes [Member]
September two thousand twenty six notes.
Schedule of Investments Measured at Fair Value on Recurring Basis
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Financial Support to Nonconsolidated Legal Entity [Domain]
Financial Support to Nonconsolidated Legal Entity [Domain]
SBA Debentures Issued on December 6, 2024
S B A Debentures Issued On December Six Two Thousand And Twenty Four [Member]
S B A Debentures Issued On December Six Two Thousand And Twenty Four
Equity distribution agreement available shares (in shares)
Equity Distributions Agreement Available Shares
Equity Distributions Agreement Available Shares
Number of votes per share
Common Stock, Voting Rights, Number Of Votes Per Common Stock Share
Common Stock, Voting Rights, Number Of Votes Per Common Stock Share
Antidilutive securities (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Fair Value By Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Net cash provided by (used in) financing activities
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Measure:
Measure [Axis]
Net realized gain (loss) (in dollars per share)
Investment Company, Realized Gain (Loss) on Investment, Per Share
Base Dividend Q3 2025
O 2025 Q3 Dividends [Member]
O 2025 Q3 Dividends
Valuation Approach and Technique
Valuation Approach and Technique [Axis]
Issuance of common stock under equity-based award plans
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures
Equity and Warrant Investments
Equity and Warrant Investments [Member]
Equity and Warrant Investments [Member]
SBA Debentures
S B A Debentures [Member]
SBA debentures.
Debt investments
Debt Investments [Member]
Debt investments.
Unearned fees related to unfunded commitments
Unearned Fees Related To Unfunded Commitments
Fee income earned on debt securities related to expiration/extension of loan commitments. As a noncash item, it is deducted from/added to net income when calculating cash provided by or used in operations using the indirect method.
Pay vs Performance Disclosure, Table
Pay vs Performance [Table Text Block]
O 2026 Q1 Dividends
O 2026 Q1 Dividends [Member]
O 2026 Q1 Dividends
Forgone Recovery due to Violation of Home Country Law, Amount
Forgone Recovery due to Violation of Home Country Law, Amount
Amortization of debt issuance cost (loan fees)
Amortization of Debt Issuance Costs
Entity Tax Identification Number
Discounted Cash Flow
Valuation Technique, Discounted Cash Flow [Member]
Base Dividend Q4 2025
O 2025 Q4 Dividends [Member]
O 2025 Q4 Dividends
Recurring fee income
Recurring Fee Income [Member]
Recurring Fee Income [Member]
Common stock issued (in shares)
Common Stock, Shares, Issued
Communications & Networking
Communications & Networking [Member]
Communications & Networking
Weighted-average remaining lease term (in years)
Operating Lease, Weighted Average Remaining Lease Term
Trading Arrangement:
Trading Arrangement [Axis]
Total Shareholder Return Amount
Total Shareholder Return Amount
Loss Contingencies [Line Items]
Loss Contingencies [Line Items]
Netherlands
NETHERLANDS
Security Exchange Name
Debt instrument, license description
Debt Instrument License Description
Debt Instrument License Description
Distributions paid per common share:
Distributions Paid Per Common Share [Abstract]
Distributions paid per common share.
Maximum borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Distributions reinvested in common stock (in shares)
Stock Issued During Period, Shares, Dividend Reinvestment Plan
Operating expenses:
Operating Expenses [Abstract]
Preferred stock
Preferred Stock Investment [Member]
Preferred Stock Investment
Asset Class
Asset Class [Domain]
Investments, Cash & Cash Equivalents
Investments, Cash And Cash Equivalents [Member]
Investments, Cash And Cash Equivalents
Line of credit interest rate
Line of Credit Facility, Interest Rate During Period
Net Realized Gains (Losses)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings
Statement [Line Items]
Statement [Line Items]
June 2030 Notes
June Two Thousand Thirty Notes [Member]
June Two Thousand Thirty Notes
Rule 10b5-1 Arrangement Adopted
Rule 10b5-1 Arrangement Adopted [Flag]
Cash and cash equivalents
Cash and Cash Equivalent
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Table]
Fair Value Measurement Inputs and Valuation Techniques [Table]
Subsequent Event [Line Items]
Subsequent Event [Line Items]
Coronado Aesthetics, LLC
Coronado Aesthetics L L C [Member]
Coronado Aesthetics, LLC.
Common Stock
Common Stock [Member]
Vested (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period
Pharmaceuticals
Pharmaceuticals [Member]
Pharmaceuticals.
Net increase (decrease) 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
Dividends paid (in dollars per share)
Common Stock, Dividends, Per Share, Cash Paid
Total net change in unrealized appreciation (depreciation)
Net Change in Unrealized Appreciation (Depreciation)
Unrealized Gain (Loss) on Investments
Summary of Significant Accounting Policies
Significant Accounting Policies [Text Block]
2024 Equity Distribution Agreement
Two Thousand Twenty Four Equity Distribution Agreement [Member]
Two Thousand Twenty Four Equity Distribution Agreement
Statistical Measurement
Statistical Measurement [Domain]
Lease and license obligations, after 5 years
Lessee, Operating Lease, Liability, to be Paid, after Year Five
Diversified Financial Services
Diversified Financial Services [Member]
Diversified Financial Services.
2026
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year
Taxable income
Taxable Net Income (Loss)
Taxable net income (loss).
Employee compensation:
Compensation Items [Abstract]
Probability weighting of alternative outcomes
Measurement Inputs Probability Weighting Of Alternative Outcomes [Member]
Measurement inputs probability weighting of alternative outcomes.
Asset Class
Asset Class [Axis]
Valuation Approach and Technique
Valuation Approach and Technique [Domain]
Debt
Debt, Policy [Policy Text Block]
Open Forward Foreign Currency Contract, Identifier [Axis]
Open Forward Foreign Currency Contract, Identifier [Axis]
Schedule of Dividends Declared
Dividends Declared [Table Text Block]
Manufacturing Technology
Manufacturing Technology [Member]
Manufacturing Technology.
Singapore
SINGAPORE
Sweden
SWEDEN
Hercules Adviser LLC
Hercules Adviser L L C [Member]
Hercules Adviser LLC.
Trading Arrangements, by Individual
Trading Arrangements, by Individual [Table]
Basic (in dollars per share)
Earnings Per Share, Basic
Discount Rate
Measurement Input, Discount Rate [Member]
Other comprehensive income
Other Comprehensive Income (Loss), Net of Tax
Payment Date
Dividends Payable, Date to be Paid
License term
License Term
License term.
Interest receivable
Increase (Decrease) in Accrued Interest Receivable, Net
2030
Unfunded Commitments Due In Fourth Year
Unfunded commitments due in fourth year.
Measurement Input Type
Measurement Input Type [Domain]
Investment company regulated status
Investment Company, Regulated Status [true false]
Investment commitments sold to Adviser Funds
Related Party Transaction, Sales To Related Party
Related Party Transaction, Sales To Related Party
Lower Middle Market
Lower Middle Market [Member]
Lower middle market.
Discount for Lack of Marketability
Measurement Input, Discount for Lack of Marketability [Member]
Common stock
Common Stock Investment [Member]
Common Stock Investment
6-month SOFR
Six Month SOFR [Member]
Six Month SOFR
Award Timing MNPI Disclosure
Award Timing MNPI Disclosure [Text Block]
VIE
Variable Interest Entity, Primary Beneficiary [Member]
Total Investments, at fair value
Including Cash And Cash Equivalent [Member]
Excluding Cash And Cash Equivalent Member
Stock-based compensation
Share-Based Payment Arrangement, Expense
Exit fee interest income
Exit Fee [Member]
Exit Fee.
3-month SOFR
Three Month SOFR [Member]
Three Month SOFR.
Total Investments Benchmark, Geographical
Total Investments Benchmark, Geographical [Member]
Total Investments Benchmark, Geographical
Total from investment operations (in dollars per share)
Investment Company, Investment Income (Loss) from Operations, Per Share
Investment commitments assigned to or directly committed by the Adviser Funds
Adviser Subsidiary Investment Commitments
Adviser subsidiary investment commitments.
Total liabilities and net assets
Liabilities and Equity
Foreign Currency Translation
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Market Equity Adjustment
Measurement Input Market Equity Adjustment [Member]
Measurement input market equity adjustment.
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Axis]
SBA Debentures Issued on March 26, 2021
S B A Debentures Issued On March Twenty Six Two Thousand And Twenty One [Member]
SBA debentures issued on march twenty six, two thousand and twenty one.
Investments in and Advances to Affiliates [Line Items]
Investments in and Advances to Affiliates [Line Items]
Accounting Policies [Abstract]
Accounting Policies [Abstract]
Schedule of Future Minimum Lease Payments Under Operating Leases and Reconciliation to Operating Lease Liability
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]
Concentration Risk Type
Concentration Risk Type [Domain]
Dividends Payable [Line Items]
Dividends Payable [Line Items]
Pay vs Performance Disclosure [Line Items]
Operating lease liability
Operating Lease, Liability
1 - 3 years
Contractual Obligation, to be Paid, Year Two and Three
Liabilities
Liabilities [Abstract]
Imminent Payoffs
Debt Investments Imminent Payoffs [Member]
Debt Investments - Imminent Payoff.
Summary of Investment Holdings [Table]
Investment Holdings [Table]
Depreciation and amortization
Depreciation, Depletion and Amortization, Nonproduction
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]
Line of credit facility, description
Line of Credit Facility, Description
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
Company Selected Measure Amount
Company Selected Measure Amount
2029
Lessee, Operating Lease, Liability, to be Paid, Year Three
Akero Therapeutics, Inc.
Phathom Pharmaceuticals Inc [Member]
Phathom Pharmaceuticals, Inc.
2018 Plan
Two Thousand Eighteen Plan [Member]
Two Thousand Eighteen Plan
Measurement Input Type
Measurement Input Type [Axis]
Investment, Issuer Affiliation [Axis]
Investment, Issuer Affiliation [Axis]
Name
Measure Name
February 2025 Notes
February Two Thousand Twenty Five Notes [Member]
February two thousand twenty five notes.
Class Of Stock [Line Items]
Class of Stock [Line Items]
Industry Sector
Industry Sector [Domain]
Escrow Receivables
Escrow Receivables Policy [Policy Text Block]
Escrow receivables policy.
Unsecured Debt
Unsecured Debt [Member]
Net Change in Unrealized Appreciation (Depreciation)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease)
Schedule of Unrealized Gain (Loss) on Investments
Unrealized Gain (Loss) on Investments [Table Text Block]
Advisor Funds
Advisor Funds [Member]
Advisor Funds
Debt (net of unamortized debt issuance costs of $30,287 and $26,626, respectively; amounts related to a VIE $64,466 and $64,530, respectively)
Net of debt issuance costs
Carrying Value
Total
Long-Term Debt
Legal Entity
Total assets
Assets
Schedule of Loan Exit Fees Receivable
Schedule of Loan Exit Fees Receivable [Table Text Block]
Schedule of Loan Exit Fees Receivable [Table Text Block]
Vested (in dollars per share)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Geographical
Geographical [Domain]
Income Taxes
Income Tax, Policy [Policy Text Block]
Cash flows provided by (used in) operating activities:
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]
Receivable Type [Axis]
Receivable Type [Axis]
Tranche two and three
Share-Based Payment Arrangement, Tranche Two And Three [Member]
Share-Based Payment Arrangement, Tranche Two And Three
Concentration Risk Type
Concentration Risk Type [Axis]
Supplemental Dividend Q3 2025
S 2025 Q3 Dividends [Member]
S 2025 Q3 Dividends
Declared Date
Dividends Payable, Date Declared
Principles of Consolidation
Consolidation, Variable Interest Entity, Policy [Policy Text Block]
Warrants
Warrant [Member]
Entity Common Stock, Shares Outstanding
All assets including intellectual property
All Assets Including Intellectual Property [Member]
All Assets Including Intellectual Property [Member]
Principal amount
Investment Owned, Balance, Principal Amount
SBA Debentures Issued on January 14, 2022
S B A Debentures Issued On January Fourteen Two Thousand And Twenty Two [Member]
SBA debentures issued on january fourteen, two thousand and twenty two.
2032
Unfunded Commitments Due In Sixth Year
Unfunded commitments due in sixth year.
Significant Other Observable Inputs (Level 2)
Observable Inputs (Level 2)
Fair Value, Inputs, Level 2 [Member]
Distributions of capital gains (in dollars per share)
Investment Company, Dividend Distribution, Per Share
Investment Company, Dividend Distribution, Per Share
Insider Trading Policies and Procedures Not Adopted
Insider Trading Policies and Procedures Not Adopted [Text Block]
Funding Assigned To Adviser Funds
Funding Assigned To Adviser Funds
Funding Assigned To Adviser Funds
Lease and License Obligations
Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract]
Plan Name
Plan Name [Axis]
Document Information [Table]
PEO
PEO [Member]
Gross Transfers into Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3
PIK interest income
P I K Interest [Member]
PIK Interest.
United States
UNITED STATES
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]
Investments after cash and cash equivalents
Investments After Cash And Cash Equivalents [Member]
Investments After Cash And Cash Equivalents
Investment, interest rate, floor
Investment, Interest Rate, Floor
Distributable Earnings (loss)
Retained Earnings [Member]
Weighted average cost of debt
Debt, Weighted Average Cost Of Debt, Percentage
Debt, Weighted Average Cost Of Debt, Percentage
Share-Based Payment Arrangement [Abstract]
Share-Based Payment Arrangement [Abstract]
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 presented in the Consolidated Statements of Cash Flows
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation
Income Statement [Abstract]
Income Statement [Abstract]
January 2027 Notes
January Two Thousand Twenty Seven Notes [Member]
January two thousand twenty seven notes.
Electronics & Computer Hardware
Electronics & Computer Hardware [Member]
Electronics & computer hardware.
Technology
Technology [Member]
Technology.
Investments
Investments, Fair Value Disclosure
Total return
Investment Company, Total Return
Net realized gain (loss) and net change in unrealized appreciation (depreciation):
Gain (Loss), Investment and Derivative, Operating, and Foreign Currency Transaction, before Tax [Abstract]
Net investment income
Net Investment Income
Record Date
Dividends Payable, Date of Record
Restatement does not require Recovery
Restatement Does Not Require Recovery [Text Block]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Semiconductors
Semiconductors [Member]
Semiconductors.
Percentage of fair value of investments based on the Company's total investment portfolio
Percentage Of Investment Portfolio
Percentage of investment portfolio.
Distributions
Total Amount
Distributions declared
Investment Company, Dividend Distribution
S B A Debentures Issued on June 5, 2025
S B A Debentures Issued On June Five Two Thousand And Twenty Five [Member]
S B A Debentures Issued On June Five Two Thousand And Twenty Five
City Area Code
Award Timing, How MNPI Considered
Award Timing, How MNPI Considered [Text Block]
SBA Debentures Issued on December 20, 2024
S B A Debentures Issued On December Twenty Two Thousand And Twenty Four [Member]
S B A Debentures Issued On December Twenty Two Thousand And Twenty Four
Schedule of Reconciliation Changes for Financial Assets and Liabilities Measured at Fair Value on Recurring Basis
Summary Of Reconciliation Changes For Financial Assets And Liabilities Measured At Fair Value On Recurring Basis [Table Text Block]
Summary of reconciliation changes for financial assets and liabilities measured at fair value on recurring basis.
Cash flows provided by (used in) investing activities:
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]
General and administrative
General and Administrative Expense
Industry Sub Sector Concentration Risk
Industry Sub Sector Concentration Risk [Member]
Industry Sub-Sector Concentration Risk Member
Pay vs Performance Disclosure
Pay vs Performance Disclosure [Table]
Interest receivable
Interest Receivable
Related Party Transactions [Abstract]
Related Party Transactions [Abstract]
Undistributed taxable earnings (in dollars per share)
Undistributed Taxable Earnings
Undistributed Taxable Earnings
Schedule of Information Related to Measurement of Operating Lease Liabilities and Supplemental Cash Flow Information Related to Operating Leases
Lease, Cost [Table Text Block]
Gross Transfers out of Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3
SBA Debentures Issued on July 28, 2021
S B A Debentures Issued On July Twenty Eight Two Thousand And Twenty One [Member]
SBA debentures issued on july twenty eight, two thousand and twenty one.
Total Industry Sectors
Total Industry Sectors [Member]
Total Industry Sectors
Adviser Funds
Adviser Funds [Member]
Adviser funds.
Description of Business
Nature of Operations [Text Block]
Schedule of Financial Highlights
Investment Company, Financial Highlights [Table Text Block]
SBA Debentures Issued on June 25, 2021
S B A Debentures Issued On June Twenty Five Two Thousand And Twenty One [Member]
SBA debentures issued on june twenty five, two thousand and twenty one.
Second lien
Second Lien [Member]
Second Lien [Member]
Maturity Date
Maturity date
Debt Instrument, Maturity Date
June 2025 Notes
June Two Thousand Twenty Five Notes [Member]
June two thousand twenty five notes.
Other Performance Measure, Amount
Other Performance Measure, Amount
Debt issuance costs
Payments of Debt Issuance Costs
Ratio of net investment income before investment gains and losses to average net assets
Investment Company, Investment Income (Loss) Ratio
Aggregate cost of securities for U.S. federal income tax purposes (in billions)
Investment, Tax Basis, Cost
Fair Value Measurements
Fair Value Measurement, Policy [Policy Text Block]
Related Party
Related and Nonrelated Parties [Domain]
Concentrations of Credit Risk
Credit Concentration Risk [Member]
Distributions of net investment income (in dollars per share)
Investment Company, Distribution To Shareholders, Per Share, Excluding Capital Share Transactions
Investment Company, Distribution To Shareholders, Per Share, Excluding Capital Share Transactions
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Vesting [Axis]
Vesting [Axis]
Valuation of Investments
Fair Value of Financial Instruments, Policy [Policy Text Block]
Restricted cash (amounts related to a VIE $2,561 and $2,467, respectively)
Restricted cash
Restricted Cash
Numerator
Numerator For Basic And Diluted Change In Net Assets Per Common Share [Abstract]
Numerator for basic and diluted change in net assets per common share.
Entity
Total Level 3 Debt Investments and Other Assets (Liabilities)
Debt Investments And Other Investment Receivables [Member]
Debt Investments And Other Investment Receivables
Net cash provided by (used in) investing activities
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation
6.25% Notes Due 2033
Six Point Two Five Notes Due Two Thousand Thirty Three [Member]
Six point two five notes due two thousand thirty three.
Drug Discovery & Development
Drug Discovery & Development [Member]
Drug Discovery & Development
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]
Realized Gains or Losses
Realized Gains or Losses [Policy Text Block]
Realized gains or losses.
Sustainable and Renewable Technology
Sustainable And Renewable Technology [Member]
Sustainable and renewable technology.
Interest paid
Cash paid for interest expense
Interest Paid, Excluding Capitalized Interest, Operating Activity
Document Fiscal Year Focus
Basis of Presentation
Basis of Accounting, Policy [Policy Text Block]
Base Dividend Q1 2025
O 2025 Q1 Dividends [Member]
O 2025 Q1 Dividends
Right of use asset
Operating Lease, Right-of-Use Asset
S B A Debentures Issued on March 28, 2025
S B A Debentures Issued On March Twenty Eight Two Thousand And Twenty Five [Member]
S B A Debentures Issued On March Twenty Eight Two Thousand And Twenty Five
Total operating lease cost
Operating Lease, Cost
Investment company, accounting and reporting under Topic 946
Investment Company, Accounting and Reporting under Topic 946 [true false]
Gross Reductions
Gross CA Reduction
Gross CA reduction.
Plan Name
Plan Name [Domain]
Carrying Value
Reported Value Measurement [Member]
Underwriting Fees/Offering Expenses
Common - Offering Expenses [Member]
Common - Offering Expenses
Total unrecognized compensation costs expected to be recognized, period
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Total
Gain (Loss), Investment and Derivative, Operating, after Tax
Equity [Abstract]
Equity [Abstract]
2026
Unfunded Commitments Due In Remainder Of Fiscal Year
Unfunded commitments due in remainder of fiscal year.
Derivative Instruments
Derivatives, Policy [Policy Text Block]
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]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Schedule of Unfunded Contractual Commitments and Unencumbered Unfunded Commitments
Other Commitments [Table Text Block]
Compensation Actually Paid vs. Total Shareholder Return
Compensation Actually Paid vs. Total Shareholder Return [Text Block]
Weighted Average
Weighted Average [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]
Fair Value, Recurring and Nonrecurring [Table]
Leases
Lessee, Leases [Policy Text Block]
Other Control Investments
Other Control Investments [Member]
Other Control Investments
Weighted average shares outstanding:
Weighted Average Number Of Shares Outstanding Basic And Diluted [Abstract]
Weighted average number of shares outstanding basic and diluted.
Purchases of capital equipment
Payments to Acquire Productive Assets
Initial conversion ratio (in dollars per share)
Debt Instrument, Convertible, Conversion Ratio
Line of credit facility, termination date
Line of Credit Facility, Expiration Date
Information Services
Information Services [Member]
Information services.
Schedule of Unamortized Capitalized Fee Income
Schedule Of Unamortized Capitalized Fee Income [Table Text Block]
Schedule Of Unamortized Capitalized Fee Income
Accretion of loan discounts on convertible notes
Accretion (Amortization) Of Discounts And Premiums, Investments, Convertible Notes
Accretion (Amortization) Of Discounts And Premiums, Investments, Convertible Notes
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities
Net increase (decrease) in net assets from capital share transactions (in dollars per share)
Investment Company, Capital Share Transaction, Increase (Decrease), Per Share
Investment Company, Capital Share Transaction, Increase (Decrease), Per Share
Schedule of Common Stock Shares Issued and Sold
Schedule of Stockholders Equity [Table Text Block]
Credit Facility
Revolving Credit Facility [Member]
Change in net assets resulting from operations per common share:
Earning Per Share Basic And Diluted [Abstract]
Earning per share basic And diluted.
Market Adjusted OPM Backsolve
Valuation Technique, Option Pricing Model [Member]
Arrangement Duration
Trading Arrangement Duration
Change in net assets per common share:
Change In Net Assets Per Common Share [Abstract]
Change in net assets per common share.
Fair Value by Liability Class [Domain]
Fair Value by Liability Class [Domain]
Local Phone Number
Additional 402(v) Disclosure
Additional 402(v) Disclosure [Text Block]
Collaborative Arrangement and Arrangement Other than Collaborative
Collaborative Arrangement and Arrangement Other than Collaborative [Domain]
S B A Debentures Issued on April 25, 2025
S B A Debentures Issued On April Twenty Five Two Thousand And Twenty Five [Member]
S B A Debentures Issued On April Twenty Five Two Thousand And Twenty Five
Per share market value at end of period (in dollars per share)
Debt, after 5 years
Long-Term Debt, Maturity, after Year Five
Equity Incentive Plans
Share-Based Payment Arrangement [Text Block]
Shares retired on vesting of equity-based awards (in shares)
Stock Repurchased and Retired During Period, Shares
HC IV
Hercules Capital Four L P [Member]
Hercules capital four, L.P.
Assets
Assets [Abstract]
Credit Facility
Credit Facility [Axis]
Underlying Security Market Price Change
Underlying Security Market Price Change, Percent
Debt Instrument
Forfeited (in dollars per share)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Investment Income Recognition
Revenue Recognition, Interest [Policy Text Block]
Fair Value of Financial Instruments
Fair Value Disclosures [Text Block]
Loss on extinguishment of debt
Loss on extinguishment of debt
Gain (Loss) on Extinguishment of Debt
Credit Facility
Credit Facility [Domain]
Net assets consist of:
Equity, Attributable to Parent [Abstract]
Vesting period
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage
Investment owned, percent of net assets
Investment Owned, Net Assets, Percentage
Consumer & Business Services
Consumer & Business Services [Member]
Consumer & Business Services
Interest Rate(1)
Debt instrument, interest rate
Debt Instrument, Interest Rate, Stated Percentage
Investment, Name [Axis]
Investment, Name [Axis]
Distributions reinvested
Distributions Reinvested
Distributions reinvested.
Maturity Date
Investments Maturity Month and Year
Investments Maturity Month and Year.
Foreign currency forward contract
Derivative Asset, Subject to Master Netting Arrangement, before Offset
Investment Company [Abstract]
Investment Company [Abstract]
Weighted average debt per common share (in dollars per share)
Weighted Average Debt Per Common Share
Weighted average debt per common share.
Financial Highlights
Investment Company, Financial Highlights [Text Block]
Supplemental Dividend Q1 2025
S 2025 Q1 Dividends [Member]
S 2025 Q1 Dividends
Entity Registrant Name
Stock Price or TSR Estimation Method
Stock Price or TSR Estimation Method [Text Block]
Total interest and dividend income, excluding PIK interest income
Interest and Dividend Income, Operating, Paid in Cash
Tectura Corporation
Tectura Corporation [Member]
Tectura corporation.
Fees paid for credit facilities
Payment Of Fees For Credit Facilities
Payment of fees for credit facilities and debentures.
Issuance/pooling date
Debt Instrument, Issuance Date
Number of operating segment
Number of Operating Segments
Accretion of loan discounts
Accretion (Amortization) of Discounts and Premiums, Investments
Schedule of Debt Information
Schedule of Debt [Table Text Block]
Granted (in dollars per share)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Related Party
Related and Nonrelated Parties [Axis]
Number of portfolio companies
Count Portfolio Companies Greater Than Five Percent
Count Portfolio Companies Greater Than Five Percent
Collaborative Arrangement and Arrangement Other than Collaborative
Collaborative Arrangement and Arrangement Other than Collaborative [Axis]
Restatement Determination Date:
Restatement Determination Date [Axis]
2028 Convertible Notes
Two Thousand Twenty Eight Convertible Notes [Member]
Two Thousand Twenty Eight Convertible Notes
Interest
Interest expense
Interest Expense, Debt
Percentage of tangible assets based on the Company's total assets
Percentage Of Assets Held
Percentage of assets held.
Investment Holding [Line Items]
Investment Holding [Line Items]
Investment Holding [Line Items]
Drug Delivery
Drug Delivery [Member]
Drug delivery.
Name
Trading Arrangement, Individual Name
Unfunded debt commitments
Unfunded commitments
Total Unfunded Debt Commitments
Investment Company, Financial Support to Investee Contractually Required, Not Provided, Amount
Debt instrument, redemption, description
Debt Instrument, Redemption, Description
Total Available
Outstanding principal balances
Debt Instrument, Face Amount
Preferred Stock
Preferred Stock [Member]
Contractual Obligations, Total
Contractual Obligation, Fiscal Year Maturity [Abstract]
Investment, Issuer Affiliation [Domain]
Investment, Issuer Affiliation [Domain]
Name
Awards Close in Time to MNPI Disclosures, Individual Name
Unvested shares beginning of period (in dollars per share)
Unvested shares end of period (in dollars per share)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Aggregate Erroneous Compensation Not Yet Determined
Aggregate Erroneous Compensation Not Yet Determined [Text Block]
2031
Unfunded Commitments Due In Fifth Year
Unfunded commitments due in fifth year.
Stock-based compensation
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition
Liability Class [Axis]
Liability Class [Axis]
Income Statement Location [Axis]
Statement of Income Location, Balance [Axis]
Stock-based compensation expense included in net investment income and other movements (in dollars per share)
Investment Company Stock Based Compensation Expense Included In Investment Income
Per share or unit amount of investment company, stock-based compensation expense included in investment income.
Change in loan income, net of collections
Change In Loan Income Net Of Collections
Net movements related to fee income receivables on debt securities and commitments.
Net change in unrealized (appreciation) depreciation
Unrealized Gain (Loss), Investment, Derivative, and Foreign Currency Transaction Price Change, Operating, before Tax
Fair Value Hierarchy and NAV
Fair Value Hierarchy and NAV [Domain]
Unsecured Debt One
Unsecured Debt One [Member]
Unsecured Debt One
Balance Sheet Location [Domain]
Statement of Financial Position Location, Balance [Domain]
Amortization of debt fees and issuance costs
Amortization of Debt Issuance Costs and Discounts
Additional basis spread on variable rate
Debt Instrument, Additional Basis Spread On Variable Rate
Debt Instrument, Additional Basis Spread On Variable Rate
Debt Issuance Costs, Net and Other Assets
Debt Issuance Costs, Net And Other Assets [Member]
Debt Issuance Costs, Net And Other Assets
Earnings Per Share (“EPS”)
Earnings Per Share, Policy [Policy Text Block]
Investments in and Advances to Affiliates [Table]
Investments in and Advances to Affiliates [Table]
Principal and fee repayments received
Proceeds from Disposition of Investment, Operating Activity
All Executive Categories
All Executive Categories [Member]
Common stock, par value
Common Stock, Value, Issued
Underwriting
Underwriting [Member]
Underwriting.
Application Software
Application Software [Member]
Application Software
Schedule of Taxable Income And Taxable Net Realized Gains (Losses)
Taxable Income And Taxable Net Realized Gains Losses [Table Text Block]
Taxable Income And Taxable Net Realized Gains Losses
3 - 5 years
Contractual Obligation, to be Paid, Year Four and Five
Investments before cash & cash equivalents
Investments Before Cash And Cash Equivalents [Member]
Investments Before Cash And Cash Equivalents
Investment company, investment owned, measurement input
Investment Company, Investment Owned, Measurement Input
Schedule of Investment Interest Income and Fee Income
Investment Income [Table Text Block]
Tangible Book Value Multiple
Measurement Input Tangible Book Value Multiple [Member]
Measurement input tangible book value multiple.
PEO Actually Paid Compensation Amount
PEO Actually Paid Compensation Amount
Investment exit fee
Investment Exit Fee
Investment exit fee
Scenario [Axis]
Scenario [Axis]
Derivative Contract [Domain]
Derivative Contract [Domain]
Other
Other Countries [Member]
Other Countries
Issuance of common stock
Proceeds from Issuance of Common Stock
All Individuals
All Individuals [Member]
Long-Term Debt, Type
Long-Term Debt, Type [Domain]
June 2025 3-Year Notes
June Two Thousand Twenty Five Three Year Notes [Member]
June two thousand twenty five three year notes.
2033 Notes
Two Thousand Thirty Three Notes [Member]
Two thousand thirty three notes.
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Abstract]
Name
Forgone Recovery, Individual Name
Accordion feature, increase limit
Line of Credit Facility, Accordion Feature, Increase Limit
Line of Credit Facility, Accordion Feature, Increase Limit
Net change in unrealized appreciation (depreciation) - Non-control / Non-affiliate investments
Unrealized Gain (Loss) on Derivatives
Basic (in dollars per share)
Distributions of net investment income (in dollars per share)
Per share amount (in dollars per share)
Investment Company, Distribution to Shareholders, Per Share
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]
Weighted average interest cost
Debt, Weighted Average Interest Rate
Other
Valuation Technique Other [Member]
Valuation technique other.
Erroneous Compensation Analysis
Erroneous Compensation Analysis [Text Block]
Geographical
Geographical [Axis]
S 2026 Q4 Dividends
S 2026 Q4 Dividends [Member]
S 2026 Q4 Dividends
Rule 10b5-1 Arrangement Terminated
Rule 10b5-1 Arrangement Terminated [Flag]
Investments In Securities
Investments In Securities [Member]
Investments In Securities
Director Plan
Director Plan [Member]
Director Plan [Member]
Term Loan
Term Loan [Member]
Term Loan
Forecast
Forecast [Member]
Taxable income, per share (in dollars per share)
Taxable Income Per Share
Taxable income per share.
Erroneously Awarded Compensation Recovery
Erroneously Awarded Compensation Recovery [Table]
Concentration Risk Benchmark [Domain]
Concentration Risk Benchmark [Domain]
Title of 12(b) Security
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Significant Portfolio Investment [Member]
Significant portfolio investment.
Debt
Long-Term Debt, Fiscal Year Maturity [Abstract]
All assets with negative pledge on intellectual property
All Assets with Negative Pledge on Intellectual Property [Member]
All Assets with Negative Pledge on Intellectual Property [Member]
Earnings Per Share [Abstract]
Earnings Per Share [Abstract]
2029
Unfunded Commitments Due In Third Year
Unfunded commitments due in third year.
S 2026 Q2 Dividends
S 2026 Q2 Dividends [Member]
S 2026 Q2 Dividends
Schedule of Number of Anti-diluted Shares as Calculated Based on Weighted Average Closing Price of Common Stock
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
Less than 1 year
Contractual Obligation, to be Paid, Year One
Percentage of fair value investment in portfolio companies
Top Ten Investment Percent of Fair Value
Top Ten Investment Percent of Fair Value
Accounts payable and accrued liabilities
Accounts Payable and Accrued Liabilities [Member]
Cash and cash equivalents, held in foreign currency
Cash and Cash Equivalent, Held in Foreign Currency
Investment Funds & Vehicles Investments
Investment Fund And Vehicle Investments [Member]
Investment Fund And Vehicle Investments
Tax expenses
Investment Income, Operating, Tax Expense (Benefit)
SBA Debentures Issued on November 15, 2021
S B A Debentures Issued On November Fifteen Two Thousand And Twenty One [Member]
SBA debentures issued on november fifteen, two thousand and twenty one.
SBA Debentures Issued on August 20, 2021
S B A Debentures Issued On August Twenty Two Thousand And Twenty One [Member]
SBA debentures issued on august twenty, two thousand and twenty one.
Award Timing Disclosures [Line Items]
Net realized (gain) loss
Realized Gain (Loss), Investment and Derivative, Operating, after Tax
Stockholders' Equity and Distributions
Equity [Text Block]
Expenses allocated to the Adviser Subsidiary
Expenses Allocated to Adviser Subsidiary1
Expenses allocated to adviser subsidiary.
SBA Debentures Issued on October 21, 2021
S B A Debentures Issued On October Twenty One Two Thousand And Twenty One [Member]
SBA debentures issued on cctober twenty one, two thousand and twenty one.
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
Subsequent Event [Table]
Subsequent Event [Table]
Offset against debt investment cost
Included within debt investment cost
Included in Cost [Member]
Included in Cost [Member]
Schedule of Aggregate Unrealized Appreciation And Depreciation of Investment Over Federal Income Tax
Aggregate Unrealized Appreciation And Depreciation of Investment Over Federal Income Tax [Table Text Block]
Aggregate Unrealized Appreciation And Depreciation of Investment Over Federal Income Tax
Vesting period
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period
Taxes payable
Taxes Payable
Retirement of employee shares, net
Payments for Repurchase of Common Stock
Adoption Date
Trading Arrangement Adoption Date
Average price/share (in dollars per share)
Shares Issued, Price Per Share
Interest rate
Investment Interest Rate
Line of credit
Line of Credit [Member]
Count greater five percent fair value equity
Count Greater Five Percent Fair Value Equity
Count greater give percent fair value equity.
Total distributable earnings
Retained Earnings (Accumulated Deficit)
S 2026 Q3 Dividends
S 2026 Q3 Dividends [Member]
S 2026 Q3 Dividends
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]
Class of Stock
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
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]
Statement [Table]
Statement [Table]
Total Unamortized Fee Income
Unamortized Fee Income
Unamortized Fee Income
Adjustments to reconcile net increase 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 provided by (used in) financing activities:
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]
Series C Preferred Stock
Series C Preferred Stock [Member]
March 2026 B Notes
March Two Thousand Twenty Six B Notes [Member]
March two thousand twenty six b notes.
Promissory Note
Promissory Notes [Member]
Promissory notes.
Unsecured
Unsecured [Member]
Unsecured [Member]
All Adjustments to Compensation
All Adjustments to Compensation [Member]
Thereafter
Lessee Operating Lease Liability Payments Due After Year Three
Lessee operating lease Liability payments due after year four.
Debt Investments originated within 6 months
Valuation, Cost Approach [Member]
Amendment Flag
Sales
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales
Termination Date
Trading Arrangement Termination Date
Insider Trading Policies and Procedures Adopted
Insider Trading Policies and Procedures Adopted [Flag]
Derivative Instruments
Derivative Instrument [Member]
Derivative Instrument [Member]
Proceeds from the sale of debt investments
Proceeds From The Sale Of Debt Investments
Proceeds From The Sale Of Debt Investments
Receivable [Domain]
Receivable [Domain]
Tranche three
Share-Based Payment Arrangement, Tranche Three [Member]
Weighted-average discount rate
Operating Lease, Weighted Average Discount Rate, Percent
Investment Income Recognition
Revenue Recognition, Dividends [Policy Text Block]
Dividends Payable [Table]
Dividends Payable [Table]
Deferred obligation contingent on funding or other milestone
Deferred receivable related to expired commitments
Deferred Fees [Member]
Deferred Fees [Member]
Number of publicly traded companies
Number Of Publicly Traded Companies
Number of publicly traded companies.
Basic (in shares)
Weighted average shares outstanding (in shares)
Basic weighted average common shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Basic
Investment Company, Financial Highlights [Roll Forward]
Investment Company, Financial Highlights [Roll Forward]
Schedule of Basic and Diluted Earnings Per Share
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Lease and License Obligations
Lease And License Obligations [Member]
Lease and license obligations.
Value
Derivative Asset, Gross Asset Including Not Subject to Master Netting Arrangement
Subsequent Events [Abstract]
Subsequent Events [Abstract]
Debt Disclosure [Abstract]
Debt Disclosure [Abstract]
Dividends, number of quarterly distributions
Dividends, Number Of Quarterly Distributions
Dividends, Number Of Quarterly Distributions
Scenario [Domain]
Scenario [Domain]
Total Earnings (loss), net of total distributions
Undistributed Earnings (Loss) Available to Common Shareholders, Basic
SBA Debentures Issued on January 21, 2022
S B A Debentures Issued On January Twenty One Two Thousand And Twenty Two [Member]
SBA debentures issued on january twenty one, two thousand and twenty two.
Gross Additions
Gross C A Additions
Gross C A additions.
Forgone Recovery due to Expense of Enforcement, Amount
Forgone Recovery due to Expense of Enforcement, Amount
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Consolidated Entities
Consolidated Entities [Axis]
Equity Offering Expenses
Equity Offering Expenses Policy [Policy Text Block]
Equity offering expenses policy.
Media/Content/Info
Media/Content/Info [Member]
Media content info member.
Contractual interest income
Contractual Interest Income [Member]
Contractual Interest Income [Member]
Repayments
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements
Distributions paid
Payments of Dividends
Schedule of Investment Collateral
Fair Value, Concentration of Risk [Table Text Block]
Distribution Type
Dividends Payable, Nature
Subsequent Events
Subsequent Events [Text Block]
Insider Trading Arrangements [Line Items]
Equity Investments
Equity Securities [Member]
Total liabilities
Liabilities
Antidilutive Securities, Name
Antidilutive Securities, Name [Domain]
Pension Adjustments Prior Service Cost
Pension Adjustments Prior Service Cost [Member]
Material Terms of Trading Arrangement
Material Terms of Trading Arrangement [Text Block]
Public offering, net of offering expenses
Proceeds from issuance of shares
Stock Issued During Period, Value, New Issues
Total investment income
Amount of Interest, Dividends, and Fees Credited to Income
Gross Investment Income, Operating
Rent expense
Rent Expense Total
Total rent expense, including short-term leases.
Entity Incorporation, State or Country Code
Non-NEOs
Non-NEOs [Member]