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Currency [Axis] Financial Asset, Aging Financial Asset, Aging [Axis] Total liabilities and net assets Liabilities and Equity Class D [Member] Class D [Member] Entity Address, State or Province Transfers in/out of Level 3 Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers, Net Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers, Net, Total Unconsolidated Significant Subsidiaries Unconsolidated Significant Subsidiaries [Text Block] Unconsolidated significant subsidiaries. Accrued Other Expenses Accrued Other Expenses [Member] Accrued Other Expenses. LAV Gear Holdings, Inc. L A V Gear Holdings Inc [Member] LAV Gear Holdings, Inc. K2 Pure Solutions NoCal, L.P. K2 Pure Solutions No Cal L P [Member] K2 Pure Solutions NoCal, L.P. Trading Symbol Fair Value Measurement Inputs and Valuation Techniques [Abstract] Common stock, shares, issued Common Stock, Shares, Issued Funded percentage Funded Percentage Funded percentage. Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Input Reconciliation [Table] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Consolidated Entities Consolidated Entities [Domain] Interest rate at basis points Line of Credit Facility, Interest Rate During Period Base management fee Base Management Fee Base management fee. 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Error Correction, Other [Member] Investment, Issuer Affiliation [Axis] Counterparty Name Counterparty Name [Axis] Net realized gains on sale of investment Gain on Sale of Investments Cash and Cash Equivalents Cash and Cash Equivalents Disclosure [Text Block] Investments In And Advances To Affiliates [Line Items] Investments in and Advances to Affiliates [Line Items] Statement of Stockholders' Equity [Abstract] Significant Accounting Policies [Line Items] Significant Accounting Policies [Line Items] Significant Accounting Policies. Lender Name Lender Name [Axis] Lash OpCo, LLC Lash Op Co L L C [Member] Lash OpCo, LLC. Enterprise Market Value Valuation Technique Enterprise Market Value [Member] Valuation technique enterprise market value. 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Interest Income Interest Investment Income, Interest Debt securitization Secured Debt, Total Secured Debt 2034 Asset-backed debt, net (par-$246,000) Total of five largest portfolio company investments Total Of Five Largest Portfolio Company Investments Total of five largest portfolio company investments. Collaborative Arrangement and Arrangement Other than Collaborative Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Investing in Shares Risk Investing In Shares Risk [Member] Investing in shares risk. Equity Equity [Member] Prepaid expenses and other assets Increase (Decrease) in Prepaid Expenses, Other CIK Number of portfolio companies consisted of debt investments Number Of Portfolio Companies Consisted Of Debt Investments Number of portfolio companies consisted of debt investments. Denominator for basic weighted average shares Investment Company Basic Weighted Average Shares Investment Company Basic Weighted Average Shares Net Change in Fair Value on Foreign Currency Translation on Outstanding Borrowings Net Change In Fair Value On Foreign Currency Translation On Outstanding Borrowings Table [Text Block] Net change in fair value on foreign currency translation on outstanding borrowings. Sales, repayments and non-cash exchanges Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Sales Ordinary income (including short-term gains, if any) Investment Company, Distributable Earnings (Loss), Accumulated Ordinary Income (Loss) Entity Tax Identification Number 2026-2 Notes Payable Two Thousand Twenty Six Two Notes Payable [Member] Two thousand twenty six two notes payable. Net increase (decrease) in net assets Stockholders' Equity, Period Increase (Decrease) Stockholders' Equity, Period Increase (Decrease), Total Increase in undistributed net investment income Increase In Undistributed Net Investment Income For Tax Purposes Increase in undistributed net investment income for tax purposes. Financial Instruments Financial Instruments [Domain] 2024 Notes Payable Two Thousand Twenty Four Notes Payable [Member] Two thousand twenty four notes payable. Investment, Name Investment, Name [Axis] DRI Holding Inc. DRI Holding Inc Vision Purchaser Corporation Vision Purchaser Corporation [Member] Vision Purchaser Corporation. Net Change In Change In Unrealized Depreciation Appreciation [Abstract] Net change in change in unrealized (depreciation) appreciation abstract. Net change in unrealized appreciation (depreciation) on: Schedule of Investments by Industry Classification and Enumerates Percentage, by Fair Value, of Total Portfolio Assets Excluding Cash and Cash Equivalents Schedule Of Investments By Industry Classification And Enumerates Percentage By Fair Value Of Total Portfolio Assets Excluding Cash And Cash Equivalents Table [Text Block] Schedule of investments by industry classification and enumerates percentage by fair value of total portfolio assets excluding cash and cash equivalents. Income Distribution to Stockholder's Risk Income Distribution to Stockholder's Risk [Member] Income distribution to stockholder's risk. Cash and Cash Equivalents [Abstract] Par/Shares Investment Owned, Balance, Principal Amount Denominator for basic and diluted weighted average shares Investment Company Basic And Diluted Weighted Average Shares Investment company basic and diluted weighted average shares. Personal, Food and Miscellaneous Services Personal Food And Miscellaneous Services [Member] Personal, food and miscellaneous services. Total assets Total assets Assets Inflation Inflation [Member] Inflation. Total investment income Net investment income Investment Income, Net Remaining commitments to fund Remaining Commitments To Fund Remaining commitments to fund. Percentage of qualifying assets to total assets Percentage Of Qualifying Assets To Total Assets Percentage of qualifying assets to total assets. Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Accrued other expenses Significant Accounting Policies [Table] Significant Accounting Policies [Table] Significant Accounting Policies. Registrant Name Investment, Affiliated Issuer, Controlled [Member] Related Party Related Party, Type [Domain] Holdco Sands Intermediate, LLC Holdco Sands Intermediate L L C [Member] Holdco Sands Intermediate, LLC. Total accumulated deficit – book basis Accumulated deficit Retained Earnings (Accumulated Deficit) 2024 Notes Two Thousand Twenty Four Notes [Member] 2024 Notes. Burgess Point Purchaser Corporation [Member] Burgess Point Purchaser Corporation [Member] Burgess Point Purchaser Corporation Members' Equity Members' equity Members' Equity Members' Equity, Total Supplemental Cash Flow Information [Abstract] Supplemental disclosure of cash flow information: 2026 Notes Two Thousand And Twenty Six Notes Payable [Member] 2026 Notes payable. Class of Stock Percentage of outstanding class A units Percentage Of Outstanding Class A Units Percentage of outstanding class A units. Minimum Minimum Minimum [Member] 2035 Asset-backed debt, net par Asset backed debt Loan, Securitized or Asset-Backed Financing Arrangement, Principal Outstanding HW Holdco, LLC H W Holdco L L C [Member] HW Holdco, LLC. Long-term realized loss carried forward Long Term Realized Loss Carried Forward Long term realized loss carried forward. Revenues, Total Revenues Total revenue Net change in unrealized depreciation on debt Net Change In Unrealized Depreciation On Debt Net change in unrealized depreciation on debt. Net change in unrealized (appreciation) depreciation on debt Significant Accounting Policies Significant Accounting Policies [Text Block] Chemicals, Plastics and Rubber Chemicals Plastics And Rubber [Member] Chemicals, plastics and rubber. Realized and unrealized gain (loss) on investments and debt: Realized And Change In Unrealized Gain Loss On Investments And Debt [Abstract] Realized and change in unrealized gain (loss) on investments and debt abstract. Realized and unrealized gain (loss) on investments: Hancock Roofing and Construction L.L.C. Hancock Roofing And Construction L L C [Member] Hancock Roofing and Construction L.L.C. Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Equity Component Equity Component [Domain] 2026 Notes payable, net Notes Payable, Noncurrent Notes Payable, Noncurrent, Total System Planning and Analysis, Inc. (f/k/a Management Consulting & Research, LLC) System Planning And Analysis Inc [Member] System Planning and Analysis, Inc. Short-Term U.S. Government Securities U.S. Government Securities U S Government Securities [Member] U S Government Securities [Member] Investment Company Financial Highlights [Line Items] Investment Company, Financial Highlights [Line Items] Controlled and Non-Controlled Affiliates [Member] Controlled and Non-Controlled Affiliates. Controlled And Non Controlled Affiliates [Member] Repayments of Lines of Credit Repayments under Truist Credit Facility Radius Aerospace, Inc. Radius Aerospace Inc [Member] Radius Aerospace, Inc. Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities: Basis Point Spread Above Index, Rate Investment, Basis Spread, Variable Rate Portfolio turnover ratio Portfolio Turnover Ratio Portfolio turnover ratio. RAM Energy Holdings LLC. RAM Energy Holdings LLC [Member] RAM Energy Holdings LLC Debt Disclosure [Abstract] Entity Current Reporting Status Common stock, shares authorized Common Stock, Shares Authorized Fair Value By Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Cost Investments Cost [Member] Investments cost. Cash And Cash Equivalents [Line Items] Cash and Cash Equivalents [Line Items] Interest and expenses on debt Interest and Debt Expense Interest and Debt Expense, Total Interest expense on notes to members 2026-2 Notes Two Thousand Twenty Six Second Notes [Member] 2026-2 Notes Stock repurchase program, repurchase of common stock Stock Repurchase Program Authorized Dollar Amount Administrative services expenses Administrative Fees Expense Assets Assets [Abstract] Security Transactions Revenue Recognition And Realized Unrealized Gains Or Losses Policy [Text Block] Security Transactions, Revenue Recognition and Realized/Unrealized Gains or Losses. Security Transactions, Revenue Recognition, and Realized/Unrealized Gains or Losses Maximum Borrowing Capacity Debenture Maximum Borrowing Capacity Debenture maximum borrowing capacity. Fair value of investment in five largest portfolio company Fair Value Of Investment In Five Largest Portfolio Company Fair value of investment in five largest portfolio company. Common Stock, Value, Issued Common stock, 65,224,500 shares issued and outstanding Par value $0.001 per share and 100,000,000 shares authorized Expenses Before Management Fees Waiver Provision For Taxes And Financing Costs Expenses before management fees waiver, provision for taxes and financing costs. Expenses before provision for taxes Fair value of largest investment in a single portfolio company Fair Value Of Largest Investment In Single Portfolio Company Fair value of largest investment in single portfolio company. Deconsolidation realized loss Net deconsolidation realized loss Deconsolidation loss (Note 4) Deconsolidation, Gain (Loss), Amount Cash and cash equivalents, cost Cash And Cash Equivalents At Cost Cash and cash equivalents at cost. Current Fiscal Year End Date Auditor Name Repayments of SBA debentures Repayments of Debt Investment Administrator Investment Administrator [Member] Investment Administrator. Total distributions declared per share Investment Company, Distribution to Shareholders, Per Share Distributions to stockholders Amsive Holding Corporation (f/k/a Vision Purchaser Corporation) Amsive Holding Corporation [Member] Amsive Holding Corporation. Net realized gain (loss) on investments and debt. Net Realized Gain (Loss) On Investments And Debt Net realized gain (loss) on investments and debt Due from affiliate Due to Affiliates Current a Noncurrent Due to Affiliates Current a Noncurrent Group of SBICs Group Of S B I C [Member] Group of SBIC. Short-term realized loss carried forward Short Term Realized Loss Carried Forward Short term realized loss carried forward. DRS Holdings III, Inc. D R S Holdings I I I Inc [Member] DRS Holdings III, Inc. Measurement Input Type Measurement Input Type [Domain] Line of credit facility amendment costs Line Of Credit Facility Amendment Costs Line of credit facility amendment costs. JF Intermediate, LLC (MidOcean SF Holdings Corp.) JF Intermediate, LLC [Member] JF Intermediate, LLC American Insulated Glass, LLC American Insulated Glass L L C [Member] American Insulated Glass, LLC. Due to affiliates Taxes Payable, Current, Total Taxes Payable, Current Auto Sector Auto Sector [Member] Auto sector. BlackRock Federal FD Institutional 30 Black Rock Federal F D Institutional30 [Member] BlackRock Federal FD Institutional 30. Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Valuation Approach and Technique Valuation Approach and Technique [Domain] Investment owned, percent of members' equity Investment Owned Percent Of Members Equity Investment owned, percent of members' equity. Duraco Specialty Tapes LLC Duraco Specialty Tapes L L C [Member] Duraco Specialty Tapes LLC. Investment, Affiliated Issuer, Noncontrolled [Member] Net change in provision for taxes on unrealized appreciation on investments. Net Change In Provision For Taxes On Unrealized Appreciation On Investments Provision for taxes on unrealized appreciation (depreciation) on investments The Bluebird Group LLC The Bluebird Group L L C [Member] The Bluebird Group LLC. Cost Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value At Cost Fair value measurement with unobservable inputs reconciliations recurring basis liability value at cost. Summit Behavioral Healthcare, LLC. Summit Behavioral Healthcare, LLC [Member] Summit Behavioral Healthcare, LLC Leisure, Amusement, Motion Pictures, Entertainment Leisure Amusement Motion Pictures Entertainment [Member] Leisure, amusement, motion pictures, entertainment. PIK Income Payment-in-kind Paid-in-Kind Interest Sale of Stock, Price Per Share Per share market value, end of period Investment Company, Gain (Loss) on Investment, Per Share Net change in realized and unrealized (loss) gain Expenses: Operating Expenses [Abstract] Long-Term Debt, Type Long-Term Debt, Type [Domain] Imagine Acquisitionco, LLC Imagine Acquisitionco L L C [Member] Imagine Acquisitionco, LLC. Telecommunications Telecommunications [Member] Telecommunications. Entity Voluntary Filers Subsequent Events [Abstract] Credit Facility, Fair Value Lines of Credit, Fair Value Disclosure Sales Benchmark Index LLC Sales Benchmark Index L L C [Member] Sales Benchmark Index LLC. Commitments and Contingencies Disclosure [Abstract] Stock Repurchase Program Equity [Text Block] Equity in PSLF Equity In P S L F [Member] Equity in PSLF. Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activities Range of Input Alternative Investment, Measurement Input Other Other [Member] Other. Investment, Issuer Affiliation [Domain] Liabilities Liabilities [Abstract] Distribution receivable Distribution Receivable Distribution receivable. Net assets Equity, Attributable to Parent [Abstract] 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] Investments at fair value Fair Value Investment Owned, at Fair Value, Beginning Balance Investment Owned, at Fair Value, Ending Balance Investments at fair value (cost-$746,720 and $738,219, respectively) Ratio of total expenses to average net assets Investment Company Ratio Of Total Expenses To Average Net Assets Investment company ratio of total expenses to average net assets. Weighted average debt outstanding Long-Term Debt, Average Amount Outstanding Equity Interests in PSLF Equity Interests In P S L F [Member] Equity Interests in PSLF. Incentive fee payable Incentive Fee Payable Net Incentive fee payable, net. Earnings Per Share [Abstract] Investments Investments in Debt and Equity Instruments, Cash and Cash Equivalents, Unrealized and Realized Gains (Losses) [Text Block] Fixed All-in Coupon Rate Annualized weighted average cost of debt Debt, Weighted Average Interest Rate PennantPark Senior Loan Fund, LLC PSLF Pennant Park Senior Loan Fund L L C [Member] PennantPark Senior Loan Fund, LLC. Investment, Name Investment, Name [Domain] Accounting Policies [Abstract] Percentage of voting securities owned Percentage Of Voting Securities Owned Percentage of voting securities owned. Payment-in-kind income Payment In Kind Income Payment-in-kind income. Proceeds from dispositions of investments Proceeds from Sale of Securities, Operating Activities Stock repurchase program expiration date Stock Repurchase Program Expiration Date Teneo Holdings LLC Teneo Holdings L L C [Member] Teneo holdings LLC. Total distributios to stockholders Investment company distribution to shareholders. Investment Company Distribution To Shareholders Total distributions to stockholders Unamortized fees Unamortized Fees Unamortized fees. Due from affiliate Increase (Decrease) Due from Affiliates Effective interest Debt Instrument, Interest Rate, Effective Percentage Revolver Revolving Credit Facility [Member] Dividends Payable Distribution payable to Members Distributions payable and other book to tax differences Distributions Payable And Other Book To Tax Differences Distributions payable and other book to tax differences. Schedule Of Cash And Cash Equivalents [Table] Schedule of Cash and Cash Equivalents [Table] Payable for investments purchased Payable For Investments Purchased Payable for investments purchased. Commitments and Contingencies Commitments and contingencies (See Note 11) Commitments and contingencies Asset coverage ratio requirement Asset Coverage Ratio Asset coverage ratio. Majority Shareholder Majority Shareholder [Member] Subordinated Debt / Corporate Notes Subordinated Debt Or Corporate Notes [Member] Subordinated debt or corporate notes. Income Statement [Abstract] Investments Total investments Investments Investments, Total Consumer Products Consumer Products Three [Member] Consumer products 3. Media Media [Member] Media. Related Party Related Party, Type [Axis] Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total Sale of investments to wholly owned subsidiary in equity interest Sale Of Investments To Wholly Owned Subsidiary In Equity Interest Sale of investments to wholly owned subsidiary in equity interest. Net change in unrealized appreciation (depreciation) Fair value measurement with unobservable inputs reconciliation recurring basis net change in unrealized appreciation. Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Net Change In Unrealized Appreciation Investment Company, Net Asset Value Per Share, Period Increase (Decrease), Total Investment Company, Net Asset Value Per Share, Period Increase (Decrease) Net (decrease) increase in net assets resulting from operations Electronics Electronics [Member] Electronics. Measurement Input Type Measurement Input Type [Axis] Team Services Group, LLC. Team Services Group LLC [Member] Team Services Group, LLC Increase Decrease In Receivables From Investments Sold Increase (decrease) in receivables from investments sold. Receivables from investments sold Statistical Measurement Statistical Measurement [Domain] TeleGuam Holdings, LLC Tele Guam Holdings L L C [Member] TeleGuam Holdings, LLC. Net Cash Provided by (Used in) Operating Activities Net cash provided by (used in) operating activities Distribution of net investment income Distribution of net investment income Investment Company, Dividend Distribution Investment Company, Dividend Distribution, Total Borrowings under SBA debentures Proceeds from Issuance of Debt Denominator for diluted weighted average shares Investment Company Diluted Weighted Average Shares Investment Company Diluted Weighted Average Shares Increase (Decrease) in Deferred Liabilities, Total Increase (Decrease) in Deferred Liabilities Deferred tax liability Voting interest in general partnership Voting Interest In General Partnership Voting interest in general partnership. Blackhawk Industrial Distribution, Inc. Blackhawk Industrial Distribution Inc [Member] Blackhawk Industrial Distribution, Inc. Increase in cash and cash equivalent Increase in cash and cash equivalent Document Period End Date Statistical Measurement Statistical Measurement [Axis] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Stockholders' Equity Note [Abstract] Dividend Income Dividend income Investment Income, Dividend Net realized and unrealized gain (loss) from investments and debt Realized and unrealized gain (loss) from investments and debt Realized and unrealized gain (loss) from investments and debt Investment, Unaffiliated Issuer [Member] Percentage of required regulatory capital in eligible smaller businesses. Percentage Of Required Regulatory Capital In Eligible Smaller Businesses Percentage of required regulatory capital in eligible smaller businesses. Second Lien Second Lien [Member] Second lien. Debt Instrument, Name Debt Instrument, Name [Domain] Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Domain] Decrease in paid-in capital Increase Decrease In Paid In Capital For Tax Purposes Increase (decrease) in paid in capital for tax purposes. HV Watterson Holdings, LLC H V Watterson Holdings L L C [Member] HV Watterson Holdings, LLC. Error Correction, Type [Axis] Taxable income before dividends paid deduction Effective Income Tax Rate Reconciliation, Deduction, Dividends, Amount Borrowing Cost Truist Credit Facility payable, cost Line Of Credit At Cost Line of credit at cost. Healthcare, Education and Childcare Healthcare Education And Childcare [Member] Healthcare, education & childcare. Impact on Portfolio and Value of Investment Due to Global Political and Economic Uncertainty Impact on portfolio and value of investment due to global political and economic uncertainty [Member] Impact on portfolio and value of investment due to global political and economic uncertainty. Paid-in capital in excess of par value Additional Paid in Capital, Common Stock Term Loan C Term Loan C [Member] Term Loan C. Commitments to fund investments Commitments To Fund Investments Commitments to fund investments. Net increase (decrease) in cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect Net change in unrealized (appreciation) depreciation on debt Net Change In Change In Unrealized Depreciation Appreciation On Debt Net change in change in unrealized depreciation appreciation on debt. Debt appreciation (depreciation) (See Notes 5 and 10) Effective tax rate before excise tax and income taxes. Effective Tax Rate Before Excise Tax and Income Taxes Effective tax rate before excise tax and income taxes Banking, Finance, Insurance & Real Estate Banking Finance Insurance And Real Estate [Member] Banking, finance, insurance & real estate. Incentive fee quarter hurdle rate Incentive Fee Quarter Hurdle Rate Incentive fee quarter hurdle rate. Net Assets Net Assets, Total Beginning of period End of period Net assets at end of period Net Assets Percentage of issuance discount amortized Percentage Of Issuance Discount Amortized Percentage of issuance discount amortized. Summary of PSLF's Portfolio at Fair Value Schedule Of Portfolio At Fair Value Table [Text Block] Schedule of portfolio at fair value. Repurchase of common stock Aggregate transaction cost for repurchase of common stock in open market transactions Payments for Repurchase of Common Stock Interest expense on credit facility and asset-backed debt. Interest expense on credit facility and asset-backed debt MAG DS Corp. M A G D S Corp [Member] MAG DS Corp. Industry Industry Name Industry name. Net Change In Unrealized Appreciation Depreciation On Debt Net change in unrealized (appreciation) depreciation on debt. Net change in unrealized appreciation (depreciation) on debt Municipal Emergency Services, Inc. Municipal Emergency Services Inc [Member] Municipal Emergency Services, Inc. Consolidation Consolidation, Policy [Policy Text Block] CLO VII Pennant Park CLO VII [Member] Pennant Park CLO VII [Member] Net realized and unrealized gain (loss) from investments Net realized and unrealized gain (loss) from investments. Net realized and unrealized gain (loss) from investments Insurance Insurance [Member] Insurance, Entity Address, Postal Zip Code Entity Interactive Data Current Private Placement Private Placement [Member] Any Hour Services Any Hour Services [Member] Any Hour Services. Weighted average debt per share Weighted Average Debt Per Share Weighted average debt per share. Credit Facility Credit Facility [Domain] Increase Decrease In Performance Based Incentive Fee Payable Net Increase (decrease) in performance-based incentive fee payable, net. Performance-based incentive fee payable, net Increase Decrease In Payable For Investments Purchased Increase (decrease) in payable for investments purchased. Payable for investments purchased Payable for investments purchased SBA Debentures S B A Debentures [Member] SBA debentures. Redemption price per note Debt Instrument Redemption Price Per Note Debt instrument redemption price per note. Entity Well-known Seasoned Issuer Class A-1a [Member] Class A-1a [Member] Debt instrument, periodic payment Debt Instrument, Payment Terms Entity Incorporation, State or Country Code Summary of Transactions with Affiliated Companies Schedule of Investments in and Advances to Affiliates, Schedule of Investments [Table Text Block] Market Yield Measurement Input Market Yield [Member] Measurement input market yield. Net Change in Appreciation / (Depreciation) Investments in and Advances to Affiliates, at Fair Value, Period Increase (Decrease) Investments in and Advances to Affiliates, at Fair Value, Period Increase (Decrease), Total Summary of Financial Highlights Investment Company, Financial Highlights [Table Text Block] Equity Components Equity Components [Axis] Market Comparable Valuation Technique Market Comparable [Member] Valuation technique market comparable. Weighted average yield on debt investments Debt Securities, Available-for-Sale, Weighted Average Yield Investments, Debt and Equity Securities [Abstract] Investment income: Net Investment Income [Abstract] Asset Transfers and Servicing Transfers and Servicing of Financial Assets, Policy [Policy Text Block] Other non-deductible expenses Other Non Deductible Expenses Other non deductible expenses. Schedule of Equity Method Investments [Table] Purchases of investments Payments for Purchase of Securities, Operating Activities MidOcean JF Holdings Corp. Mid Ocean J F Holdings Corp Mid Ocean J F Holdings Corp [Member] MidOcean JF Holdings Corp. Personal and Non-Durable Consumer Products Personal And Non Durable Consumer Products [Member] Personal and non durable consumer products. Local Phone Number Sale of Stock [Axis] Schedule Of Investment Income Reported Amounts By Category [Table] Investment Income [Table] 2026 Notes Two Thousand And Twenty Six Notes [Member] 2026 notes. Net change in net unrealized (appreciation) depreciation on investments Net Change In Net Unrealized Appreciation Depreciation On Investments Net change in net unrealized (appreciation) depreciation on investments. Ownership percentage of voting securities Ownership Percentage Of Voting Securities Ownership percentage of voting securities. Base management fee percentage of total net assets. Base Management Fee Percentage of Total Net Assets Base management fee percentage of total net assets Transfers in and/or out of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net, Total Schedule of Equity Method Investments [Line Items] Statement of Cash Flows [Abstract] Global Holdings InterCo LLC Global Holdings Inter Co L L C [Member] Global Holdings InterCo LLC. Net change in unrealized appreciation (depreciation) on Investments. Net change in unrealized appreciation (depreciation) on Investments SBIC S B I C [Member] SBIC. Income Tax Authority Income Tax Authority [Domain] Organization, Consolidation and Presentation of Financial Statements [Abstract] Other income Other Income Common stock par value Common Stock, Par or Stated Value Per Share Truist credit facility Line of Credit Facility, Maximum Amount Outstanding During Period 2026 Notes-2 Two Thousands And Twenty Six Notes Two Payable [Member] Two Thousands And Twenty Six Notes Two Payable [Member] Provision for taxes on net realized and unrealized gains on investments Provision For Taxes On Net Realized And Unrealized Gains On Investments Provision for taxes on net realized and unrealized gains on investments. Owl Acquisition, LLC Owl Acquisition L L C [Member] Owl Acquisition, LLC. Effect of exchange rate changes on cash Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total Juniper Landscaping of Florida, LLC Juniper Landscaping Of Florida L L C [Member] Juniper Landscaping of Florida, LLC. Percentage of public offering price per notes issued Debt Instrument, Interest Rate, Stated Percentage Fixed All-in Coupon Rate Provision for taxes on net unrealized gain on investments Provision For Taxes On Net Unrealized Gain On Investments Provision for taxes on net unrealized gain on investments. Maximum Maximum [Member] Maximum Environmental Services Environmental Services [Member] Environmental services. Net realized gain (loss) on investment and debt. Net Realized Gain Loss On Investment And Debt Net realized gain (loss) on investments and debt: Financing receivable, nonaccrual, percent past due on cost basis Financing Receivable, Nonaccrual, Percent Past Due Interest payable on debt Interest Payable Interest payable on notes to members Market driven spread period Market Driven Spread Period Market-driven spread period. Portfolio turnover rate. Portfolio Turnover Rate Portfolio turnover rate Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Summary of Reconciles Net (Decrease) Increase in Net Assets Resulting From Operations to Taxable Income Reconciles Net Decrease Increase In Net Assets Resulting From Operations To Taxable Income Table [Text Block] Reconciles net decrease increase in net assets resulting from operations to taxable income. Schedule of Investments [Abstract] Distributions paid to stockholders Payments of Dividends Payments of Dividends, Total Level 3 Fair Value, Inputs, Level 3 [Member] Class A1b [Member] Class A1b [Member] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Connatix Buyer, Inc. Connatix Buyer Inc [Member] Connatix Buyer, Inc. Magenta Buyer L L C Magenta Buyer L L C [Member] Magenta Buyer, LLC. Non-Controlled Affiliates Non-controlled, Affiliated Investments Non Controlled Affiliated Investments [Member] Non controlled affiliated investments. Term Loan B Term Loan B [Member] Term Loan B. Altamira Technologies, LLC Altamira Technologies L L C [Member] Altamira Technologies, LLC. Incentive Fee Payment Condition One Incentive Fee Payment Condition One [Member] Incentive fee payment condition one. Largest portfolio company investment Largest Portfolio Company Investment Largest portfolio company investment. Accounts payable and accrued expenses Accrued Liabilities, Total Accrued Liabilities Accrued expenses Incentive fee payable Increase (Decrease) in Incentive Fee Payable Temporary draws outstanding, at cost Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Temporary Draws Outstanding Fair value measurement with unobservable inputs reconciliation recurring basis liability temporary draws outstanding. Provision For Taxes On Net Investment Income Provision for taxes on net investment income. Provision for taxes on net investment income Provision for taxes City Area Code Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Fair value investments of portfolio assets excluding cash and cash equivalents percentage Fair Value Investments Of Portfolio Assets Excluding Cash And Cash Equivalents Percentage Fair value investments of portfolio assets excluding cash and cash equivalents percentage. Issued Dates, September 20, 2017 Issued At September Twenty Two Thousand Seventeen [Member] Issued at September Twenty Two Thousand Seventeen. Unfunded commitments. Unfunded Commitments Unfunded commitments Incentive fees on net investment income Incentive Fees On Net Investment Income Incentive fees on net investment income. Unfunded commitments to fund investments Unfunded Commitments To Fund Investments Unfunded commitments to fund investments. Distributions payable Distributions Payable Distributions payable. UBEO, LLC U B E O L L C [Member] UBEO, LLC. Annual rate of base management fee Annual Rate Of Base Management Fee Annual rate of base management fee. Exigo Intermediate II, LLC Exigo Intermediate I I L L C [Member] Exigo Intermediate II, LLC. Net realized gain (loss) on investments and debt, total Gain (Loss) on Investments Net realized gain (loss) on investments Equity Equity Method Investments [Member] NBH Group LLC (Revolver) N B H Group L L C [Member] NBH Group LLC. NBH Group LLC Reception Purchaser, LLC Reception Purchaser L L C [Member] Reception Purchaser, LLC. Incentive fee annual hurdle rate Incentive Fee Annual Hurdle Rate Incentive fee annual hurdle rate. U S Bank Cash U S Bank Cash [Member] US Bank Cash. Upfront fees Percentage Upfront Fees Percentage Upfront fees percentage. General and administrative expenses Administrative services expenses (See Note 3) General and Administrative Expense, Total General and administrative expenses Investment Company, Financial Highlights [Abstract] Net investment income per common share Net investment income Investment Company, Investment Income (Loss), Per Share Other Commitments [Line Items] Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Senior Securities Senior Securities [Member] Senior securities. Debt extinguishment realized loss Debt extinguishment realized loss Gain (Loss) on Extinguishment of Debt, Total Gain (Loss) on Extinguishment of Debt Net Change In Fair Value On Foreign Currency Translation On Outstanding Borrowings [Table] Net Change In Fair Value On Foreign Currency Translation On Outstanding Borrowings [Table] Net change in fair value on foreign currency translation on outstanding borrowings. Statement [Table] Statement [Table] Schedule Of Related Party Transactions By Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Business Services Business Services [Member] Business services. Document Fiscal Period Focus Investment Valuations Investment, Policy [Policy Text Block] AGREEMENTS AND RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] Quantic Electronics, LLC Quantic Electronics L L C [Member] Quantic Electronics, LLC. Lombart Brothers, Inc. Lombart Brothers Inc [Member] Lombart Brothers, Inc. Statement [Line Items] Statement [Line Items] First Lien Secured Debt First Lien Secured Debt [Member] First lien secured debt. First Lien Secured Debt Food Food [Member] Food. Description of incentive fee on net investment income Description Of Incentive Fee On Net Investment Income Description of incentive fee on net investment income. Communications Communications [Member] Communications. Long-term capital gain Investment Company, Distributable Earnings (Loss), Accumulated Long-Term Capital Gain (Loss) Total debt Debt Instrument, Fair Value Disclosure Debt Instrument, Fair Value Disclosure, Total IG Investments Holdings, LLC I G Investments Holdings L L C [Member] IG Investments Holdings, LLC. Beginning balance Ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Accounts payable and accrued expenses Other Accrued Liabilities Offsetting losses expected to refund Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority Outstanding borrowings Letters of Credit Outstanding, Amount Due from affiliates Due From Affiliate Due From Affiliate CF512, Inc. C F512 Inc [Member] CF512, Inc. Base management fee amendment description Base Management Fee Amendment Description Base management fee amendment description. Tyto Athene, LLC Tyto Athene L L C [Member] Tyto Athene, LLC. Asset Class Asset Class [Domain] Distributions and Capital Transactions Distributions And Capital Transactions Policy [Text Block] Distributions and Capital Transactions. Summary of Listing of PSLFs Individual Investments Investment Holdings, Schedule of Investments [Table Text Block] Common Stock Common Stock [Member] Increase Decrease In Distribution Receivable Increase (decrease) in distribution receivable. Distribution receivable Debt Instrument [Line Items] Debt Instrument [Line Items] Education Education [Member] Education. Other Commitments [Table] Class B [Member] Class B [Member] PSLF’s Members’ Equity P S L Fs Members Equity [Member] PSLF’s members’ equity member. Cash and cash equivalents (cost-$36,850 and $38,784, respectively) Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Cash and Cash Equivalents, at Carrying Value, Total Additional unfunded investment Additional Unfunded Investment Additional unfunded investment. Pantheon Pantheon [Member] Pantheon Net realized (gain) loss on investments and cash equivalents Net Realized Gains (Losses) Net realized gain (loss) on investments Realized Investment Gains (Losses) Realized Investment Gains (Losses), Total Net accretion of discount and amortization of premium Accretion (Amortization) of Discounts and Premiums, Investments Entity Common Stock, Shares Outstanding Machinery Machinery [Member] Machinery [Member] Sale of investments to wholly owned subsidiary in cash Sale Of Investments To Wholly Owned Subsidiary In Cash Sale of investments to wholly owned subsidiary in cash. Unused borrowing capacity Debt Instrument, Unused Borrowing Capacity, Amount SBA debentures payable, par S B A Debentures Payable Net Par SBA debentures payable net par. Total return Investment Company, Total Return Par Par / Shares Investment Owned, Balance, Shares SBA Debentures Small Business Administration Debentures [Member] Small business administration debentures. Cover SBIC II S B I C I I [Member] SBIC II. Document Fiscal Year Focus Maturity Maturity / Expiration Investment Maturity Date Consolidated Statements of Operations for PSLF Condensed Income Statement [Table Text Block] Investments in and Advances to Affiliates [Abstract] Anteriad, LLC (f/k/a MeritDirect, LLC). Anteriad, LLC (f/k/a MeritDirect, LLC) Taxes paid Income Taxes Paid, Net Income Taxes Paid, Net, Total 2026 Notes Two Thousand Twenty Six Notes [Member] 2026 Notes. Sale of Stock [Domain] Net unrealized depreciation on debt. Net unrealized depreciation on debt Recteq, LLC Recteq, LLC (Revolver) Recteq L L C [Member] Recteq, LLC. Cartessa Aesthetics, LLC Cartessa Aesthetics L L C [Member] Cartessa Aesthetics, LLC. Graffiti Buyer, Inc. Graffiti Buyer Inc [Member] Graffiti Buyer, Inc. Pre-incentive fee net investment income percentage Pre Incentive Fee Net Investment Income Percentage Preincentive fee net investment income percentage. Incentive fee on capital gains percentage Incentive Fee On Capital Gains Percentage Incentive fee on capital gains percentage. Ratio of operating expenses to average net assets before the waiver Investment Company, Investment Income (Loss) Ratio, before Incentive Allocation Security Exchange Name Applied Technical Services, LLC Applied Technical Services L L C [Member] Applied Technical Services, LLC. Federal Taxes Domestic Tax Authority [Member] Beginning balance Ending balance Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Total investment income Total investment income Gross Investment Income, Operating Arcfield Acquisition Corp. Arcfield Acquisition Corp [Member] Arcfield Acquisition Corp. Integrity Marketing Acquisition, LLC Integrity Marketing Acquisition L L C [Member] Integrity Marketing Acquisition, LLC. Software Software [Member] Software, Subordinated Notes in PSLF Subordinated Notes In P S L F [Member] Subordinated notes in PSLF. Notes payable to members Aggregate principal amount of notes issued Notes Payable Notes Payable, Total Industry Sector Industry Sector [Axis] Distribution Distribution [Member] Distribution. Numerator for net increase (decrease) in net assets resulting from operations Investment Company Net Assets Increase (Decrease) from Operations Investment Company Net Assets Increase (Decrease) from Operations Lightspeed Buyer Inc. Lightspeed Buyer Inc [Member] Lightspeed Buyer Inc. Electro Rent Corporation. Electro Rent Corporation [Member] Electro Rent Corporation Financial Instrument Financial Instrument [Axis] Provision for taxes on net realized gain on investments Provision For Taxes On Net Realized Gain On Investments Provision for taxes on net realized gain on investments. Increment in issued price per unit Increment In Issued Price Per Unit Increment in issued price per unit. Entity Emerging Growth Company Amendment Payment-in-kind Interest Income, Operating, Paid in Kind IMIA Holdings, Inc. I M I A Holdings Inc [Member] IMIA Holdings, Inc. Quantic Electronics LLC Unfunded Term Loan. Quantic Electronics LLC Unfunded Term Loan [Member] Quantic Electronics, LLC - Unfunded Term Loan Senior Secured Revolving Credit Facility Senior Secured Revolving Credit Facility [Member] Senior secured revolving credit facility. Total investments and cash and cash equivalents Investments and Cash Investments and Cash, Total Fairbanks Morse Defense Fairbanks Morse Defense [Member] Fairbanks Morse Defense. Stake holder investment, percentage Equity Method Investment, Ownership Percentage AKW Holdings Limited A K W Holdings Limited [Member] AKW Holdings Limited. Transportation Transportation [Member] Transportation. Net increase (decrease) in net assets resulting from operations per common share Basic and diluted net increase (decrease) in net assets per share resulting from operations Investment Company, Investment Income (Loss) from Operations, Per Share Net increase in net assets resulting from operations Percentage of non qualifying assets to total assets Percentage Of Non Qualifying Assets To Total Assets Percentage of non qualifying assets to total assets. Proceeds from Lines of Credit Proceeds from Lines of Credit, Total Borrowings under Truist Credit Facility PSLF Subsidiary Subsidiaries [Member] Schedule of Investments and Cash and Cash Equivalents Schedule Of Investments And Cash And Cash Equivalents Table [Text Block] Schedule of investments and cash and cash equivalents. Number of portfolio on nonaccrual Number Of Portfolio On Nonaccrual Number of portfolio on nonaccrual. Reconciliation of Investments Measured at Fair Value Using Significant Unobservable Inputs Level 3 Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Variable Rate Variable Rate [Domain] Non-controlled, Non-affiliated Investments Non Controlled Non Affiliated Investments [Member] Non controlled non affiliated investments. Entity File Number Crash Champions, LLC Crash Champions L L C [Member] Crash Champions, LLC Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Maturity date Line of Credit Facility, Expiration Date OIS Management Services, LLC O I S Management Services L L C [Member] OIS Management Services, LLC. Equity Class Of Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Ratio of operating expenses to average net assets Investment Company Ratio Of Operating Expenses To Average Net Assets Investment company ratio of operating expenses to average net assets. Net investment income Net investment income Net Investment Income Net investment income Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Ending Balance Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Beginning Balance Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Total Ratios** / Supplemental Data: Investment Company, Financial Ratios [Abstract] Non-cash exchanges and conversions Non Cash Exchanges And Conversions Non-cash exchanges and conversions. Signature Systems Holding Company Signature Systems Holding Company [Member] Signature systems holding company. Printing and Publishing Printing And Publishing [Member] Printing and Publishing. Disposal Group Classification [Domain] Mars Acquisition Holdings Corp. Mars Acquisition Holdings Corp [Member] Mars Acquisition Holdings Corp. Debt Instrument Basis points Debt Instrument, Interest Rate, Basis for Effective Rate Beta Plus Technologies, Inc. Beta Plus Technologies Inc [Member] Beta Plus Technologies, Inc. Financing receivable, nonaccrual, percent past due on fair value basis Financing Receivable, Excluding Accrued Interest, Nonaccrual, Percent Past Due Aerospace and Defense Aerospace And Defense [Member] Aerospace and defense. Total expenses Costs and Expenses Total expenses Riverside Assessments, LLC Riverside Assessments L L C [Member] Riverside Assessments, LLC. Solutionreach, Inc. Solutionreach Inc [Member] Solutionreach, Inc. Gross Reductions Investments in and Advances to Affiliates, at Fair Value, Gross Reductions Co-venturer Co-venturer [Member] Administration fees Administrative services expenses. Administrative Services Expenses Administrative services expenses Auditor Location Net realized gain (loss) on investments and debt Debt and Equity Securities, Realized Gain (Loss) Debt and Equity Securities, Realized Gain (Loss), Total Consumer Products Consumer Products [Member] Consumer Products. Entity Small Business Entity Shell Company Title of Individual Title of Individual [Axis] Investment Type Investment Type [Axis] Retail Retail [Member] Proceeds from Debt, Net of Issuance Costs Proceeds from 2026 Notes-2 issuance Purchases of investments, including PIK interest Payments to Acquire Investments Payments to Acquire Investments, Total Change in Net Assets from Operations Per Common Share Earnings Per Share [Text Block] Inception Fertility Ventures, LLC Inception Fertility Ventures L L C [Member] Inception Fertility Ventures, LLC. Entity Address, Address Line One Schedule Of Investment Income Reported Amounts By Category [Line Items] Net Investment Income [Line Items] Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure Sales and repayments of investments Payments for (Proceeds from) Investments Payments for (Proceeds from) Investments, Total TWS Acquisition Corporation T W S Acquisition Corporation [Member] TWS Acquisition Corporation. Net Change In Fair Value On Foreign Currency Translation On Outstanding Borrowings [Line Items] Net Change In Fair Value On Foreign Currency Translation On Outstanding Borrowings [Line Items] Net change in fair value on foreign currency translation on outstanding borrowings. STV Group Incorporated S T V Group Incorporated [Member] STV group incorporated. Broder Bros., Co. Broder Bros Co [Member] Broder Bros., Co. Number of portfolio companies in PSLF Number Of Portfolio Companies Number of portfolio companies. Debt instrument, interest rate Debt Instrument, Interest Rate During Period Financial Highlights Investment Company, Financial Highlights [Text Block] Subordinated Notes Subordinated Notes [Member] Subordinated notes. Incentive fee Incentive Fee Expense Decrease in accumulated net realized gain Increase Decrease In Accumulated Net Realized Gain For Tax Purposes Increase (decrease) in accumulated net realized gain for tax purposes. Borrowings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Summary of Tax Characteristics of Distributions Declared Dividends Declared [Table Text Block] Change in Fair Value Net Change In Fair Value On Foreign Currency Translation On Outstanding Borrowings Net change in fair value on foreign currency translation on outstanding borrowings. Long-Term Debt, Type Long-Term Debt, Type [Axis] Net increase (decrease) in net assets resulting from operations Net increase (decrease) in net assets resulting from operations Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net increase (decrease) in net assets resulting from operations Mailsouth Inc. Mailsouth Inc [Member] Mailsouth Inc. Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Interest payable on credit facility and asset backed debt. Interest Payable On Credit Facility And Asset Backed Debt Interest payable on credit facility and asset backed debt Cascade Environmental Holdings, LLC Cascade Environmental Holdings L L C Cascade Environmental Holdings L L C [Member] Cascade Environmental Holdings, LLC. Line of Credit Facility, Lender Line of Credit Facility, Lender [Domain] Debt instrument, periodic payment Debt Instrument, Frequency of Periodic Payment Level 2 Fair Value, Inputs, Level 2 [Member] ECL Entertainment, LLC E C L Entertainment L L C [Member] ECL Entertainment, LLC. Seaway Buyer, LLC Seaway Buyer L L C [Member] Seaway Buyer, LLC. Equity capital Equity Method Investments Other Borrowings Current Value Long-Term Debt, Gross Research Now Group, Inc. and Dynata, LLC Research Now Group Inc And Dynata L L C [Member] Research Now Group, Inc. and Dynata, LLC. Ratio of net investment income to average net assets Investment Company, Investment Income (Loss) Ratio Title of 12(b) Security Base management fee Management Fee Expense All Currencies [Domain] Industry Sector Industry Sector [Domain] Incentive Fee Payment Condition Three Incentive Fee Payment Condition Three [Member] Incentive fee payment condition three. Unique Indoor Comfort, LLC Unique Indoor Comfort L L C [Member] Unique Indoor Comfort, LLC. Error Correction, Type [Domain] Investments Investments [Domain] Debt Investments Debt Investments [Member] Debt investments. Reset Date Line Of Credit Facility Reset Date Line of credit facility reset date. Investment Company Ratio Of Interest And Expenses On Debt To Average Net Assets Investment company ratio of interest and expenses on debt to average net assets. Ratio of debt related expenses to average net assets Schedule Of Investments [Table] Schedule of Investments [Table] Schedule Of Investments [Line Items] Schedule of Investments [Line Items] Prepaid Expenses and Other Assets Prepaid Expenses and Other Current Assets [Member] Alpine acquisition corp two. Alpine Acquisition Corp II Liabilities in excess of other assets Liabilities In Excess Of Other Assets Liabilities in excess of other assets. TPC Canada Parent, Inc. and TPC US Parent, LLC T P C Canada Parent Inc And T P C U S Parent L L C [Member] TPC Canada Parent, Inc. and TPC US Parent, LLC. Amortization of deferred financing costs Amortization of Debt Issuance Costs Manufacturing / Basic Industries Manufacturing Basic Industries [Member] Manufacturing / Basic Industries. State and Local Tax State and Local Jurisdiction [Member] Truist Credit Facility payable, at fair value (cost $388,456 and $212,420, respectively) Long-Term Line of Credit, Total Credit facility payable Amount Borrowed IDC Infusion Services, Inc. I D C Infusion Services Inc [Member] IDC Infusion Services, Inc. Gross Additions Investments in and Advances to Affiliates, at Fair Value, Gross Additions Cash and Cash Equivalents Cash and Cash Equivalents [Axis] 2026 Notes Payable Two Thousand Twenty Six Notes Payable [Member] Two thousand twenty six notes payable. 2026 Notes Payable Common Stock, Shares, Outstanding Common Stock, Shares, Outstanding, Beginning Balance Common stock, shares, outstanding Shares outstanding at end of period Stock repurchase program, repurchase of common stock, shares Stock Repurchase Program Number of Shares Authorized to be Repurchased Capital outstanding Capital Units, Outstanding Class Of Treasury Stock [Table] Class of Treasury Stock [Table] Investment, Identifier [Axis] Consolidated Statements of Assets and Liabilities for PSLF Condensed Balance Sheet [Table Text Block] PlayPower, Inc. Play Power Inc [Member] PlayPower, Inc. Summary of Investments, Cash and Cash Equivalents, Credit Facility, SBA Debentures and Notes Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] Asset backed debt, transfer of assets, description Transfer of Financial Assets Accounted for as Sales, Description of Arrangements Asset backed debt payable, par Asset Backed Debt Net Par Asset backed debt net par. 2034 Asset-backed debt, net par Document Type Truist Credit Facility Truist Credit Facility [Member] Truist credit facility. Purchases, PIK interest, net discount accretion and non-cash exchanges Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases Current Coupon Investment Interest Rate Credit facility interest rate description Line of Credit Facility, Interest Rate Description Incentive fee on capital gains accrued Incentive Fee On Capital Gains Accrued Incentive fee on capital gains accrued. Counterparty Name Counterparty Name [Domain] 2035 Asset-backed debt, net (par-$246,000) Asset backed debt net. Asset Backed Debt Net 2031 Asset-Backed Debt, net (par—$228,000) Prepaid expenses and other assets Prepaid Expense and Other Assets Ad.net Acquisition, LLC Ad Net Acquisition L L C [Member] Ad Net Acquisition LLC. Net asset value per share Net Asset Value Per Share, Ending Balance Net Asset Value Per Share, Beginning Balance Disposal Group Classification [Axis] Debt Instrument, Issuance Date Issuance Dates Dr. Squatch, LLC Dr Squatch L L C [Member] Dr. Squatch, LLC. Increase Decrease In Base Management Fee Payable Net Increase (decrease) in base management fee payable, net. Base management fee payable, net Net Cash Provided by (Used in) Financing Activities Net cash provided by (used in) financing activities Commitment fee Percentage Commitment Fee Percentage commitment fee percentage. MBS Holdings, Inc. M B S Holdings Inc [Member] MBS Holdings, Inc. Entity Filer Category Pantheon Funding I Pantheon Funding One [Member] Pantheon Funding 1 Balance Sheet Location Balance Sheet Location [Domain] Increase (Decrease) in Accrued Interest Receivable, Net Interest receivable Financial Services Financial Services [Member] Financial Services. Icon Partners III, LP Icon Partners I I I L P [Member] Icon Partners III, LP. Variable Rate Variable Rate [Axis] Debentures repaid Debentures Redemption During Period Debentures redemption during period. Summary of Amounts Reclassified for Tax Purposes Disclosure Of Amounts Reclassified For Tax Purposes Table [Text Block] Disclosure of amounts reclassified for tax purposes. Total investment income Investment Income, Net, Amortization of Discount and Premium Controlled Affiliates Controlled, Affiliated Investments Controlled Affiliated Investments [Member] Controlled affiliated investments. 2025 Notes Two Thousand And Twenty Five Notes [Member] Two thousand and twenty five notes. Interest Interest Income, Operating, Paid in Cash Asset Class Asset Class [Axis] Total liabilities Liabilities Apex Service Partners, LLC Apex Service Partners L L C [Member] Apex Service Partners, LLC. Net change in unrealized appreciation reported within the net change in unrealized appreciation on investments in our consolidated statements of operations attributable to our Level 3 assets still held at the reporting date Net Change In Unrealized Depreciation Appreciation On Investments And Debt Net change in unrealized depreciation appreciation on investments and debt. Net change in unrealized depreciation (appreciation) on investments and debt Net change in unrealized (depreciation) appreciation on investments and debt Net change in unrealized appreciation (depreciation) on investments and debt Net change in unrealized appreciation (depreciation) on investments and debt Interest receivable Interest Receivable PL Acquisitionco, LLC P L Acquisitionco L L C [Member] PL Acquisitionco, LLC. Total net assets Equity, Attributable to Parent Stockholders' Equity Attributable to Parent, Beginning Balance Stockholders' Equity Attributable to Parent, Ending Balance Percentage of capital ownership in each of outstanding subordinated notes and equity interests Percentage Of Capital Ownership In Each Of Outstanding Subordinated Notes And Equity Interests Percentage of capital ownership in each of outstanding subordinated notes and equity interests. SOFR Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] Consolidated Entities Consolidated Entities [Axis] Repayments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales Documents Incorporated by Reference Past Due 30 Days or More Financial Asset, 30 to 59 Days Past Due [Member] Net increase (decrease) in net assets resulting from operations Net change in unrealized appreciation (depreciation) Debt and Equity Securities, Unrealized Gain (Loss) Debt and Equity Securities, Unrealized Gain (Loss), Total Rancho Health MSO, Inc. Rancho Health M S O Inc [Member] Rancho Health MSO, Inc. Cash and Cash Equivalents Cash and Cash Equivalents [Domain] Schedule of Fixed Rate SBA Debentures Schedule of Subordinated Borrowing [Table Text Block] Home and Office Furnishings Home And Office Furnishings [Member] Home and Office Furnishings. PT Networks, LLC and RAM Energy Holdings LLC [Member] PT Networks, LLC and RAM Energy Holdings LLC. Statement of Financial Position [Abstract] Net realized gain (loss) Fair value measurement with unobservable inputs reconciliation recurring basis net realized gain loss on investments and debt. Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Net Realized Gain Loss On Investments And Debt Net unrealized appreciation (depreciation) on investments and debt Investment, Tax Basis, Unrealized Gain (Loss) Tax Basis of Investments, Unrealized Appreciation (Depreciation), Net, Total Credit Facility Credit Facility [Axis] Incentive Fee Payment Condition Two Incentive Fee Payment Condition Two [Member] Incentive fee payment condition two. Bottom Line Systems, LLC Bottom Line Systems L L C [Member] Bottom Line Systems, LLC. Investment owned, percent of net assets Investment Owned, Net Assets, Percentage ECM Industries, LLC E C M Industries L L C [Member] ECM Industries, LLC. Long-Term Credit Facility Long Term Credit Facility [Member] Long-term credit facility. Asset coverage per unit Asset Coverage Per Unit Asset coverage per unit. Taxes and Distributions Income Tax Disclosure [Text Block] Class A-2 [Member] Class A-2 [Member] Transactions with Affiliated Companies Investments in and Advances to Affiliates, Schedule of Investments [Text Block] Summary of Information Sets Forth for Computation of Basic and Diluted Per Share Net Increase in Net Assets Resulting from Operations Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Measured at Net Asset Value Fair Value Measured at Net Asset Value Per Share [Member] Valuation Approach and Technique Valuation Approach and Technique [Axis] Walker Edison Furniture Company LLC Walker Edison Furniture Company L L C [Member] Walker Edison Furniture Company LLC. Income Tax Authority Income Tax Authority [Axis] PennantPark-TSO Senior Loan Fund II, LP Pennant Park T S O Senior Loan Fund I I L P [Member] PennantPark-TSO Senior Loan Fund II, LP. The Aegis Technologies Group, LLC The Aegis Technologies Group L L C [Member] The Aegis Technologies Group, LLC. Fair Value Disclosures [Abstract] Class C [Member] Class C [Member] Payable To Related Party Payable To Related Party Payable To Related Party Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Axis] Fair value Alternative Investment Cash and cash equivalents, beginning of year Cash and cash equivalents, end of year Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total Income Tax Disclosure [Abstract] Investment Company Financial Highlights [Table] Investment Company, Financial Highlights [Table] Total investments and cash and cash equivalents Investments And Cash And Cash Equivalents Fair Value Disclosure Investments and cash and cash equivalents fair value disclosure.