Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Northwinds Holding, Inc. and Northwinds Services Group LLC Northwinds Holding, Inc. and Northwinds Services Group LLC [Member] Northwinds Holding, Inc. and Northwinds Services Group LLC Trading Arrangement: Trading Arrangement [Axis] Subordinated notes Subordinated Debt Maximum Maximum [Member] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] PerkinElmer U.S. LLC and NM Polaris Co-Invest, L.P. PerkinElmer U.S. LLC and NM Polaris Co-Invest, L.P. [Member] PerkinElmer U.S. LLC and NM Polaris Co-Invest, L.P. Empower Payments Investor, LLC Empower Payments Investor, LLC [Member] Empower Payments Investor, LLC Title of 12(b) Security Title of 12(b) Security Subsequent Event Subsequent Event [Member] Carrying value Reported Value Measurement [Member] UserZoom Technologies, Inc. UserZoom Technologies, Inc. [Member] UserZoom Technologies, Inc. Project Potter Buyer, LLC and Project Potter Parent, L.P. Project Potter Buyer, LLC and Project Potter Parent, L.P. [Member] Project Potter Buyer, LLC and Project Potter Parent, L.P. Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Weighted average stated interest rate Debt, Weighted Average Interest Rate Adjustment to Compensation, Amount Adjustment to Compensation Amount Financial Instrument [Axis] Financial Instrument [Axis] Segment Reporting [Abstract] Mai Capital Management Intermediate LLC Mai Capital Management Intermediate LLC [Member] Mai Capital Management Intermediate LLC Payable for open trades Payable, Investment, Purchase ZenDesk, Inc., Zoro TopCo, Inc. and Zoro TopCo, LP ZenDesk, Inc., Zoro TopCo, Inc. and Zoro TopCo, LP [Member] ZenDesk, Inc., Zoro TopCo, Inc. and Zoro TopCo, LP Foreign currency and other transactions Realized Gain (Loss), Foreign Currency Transaction, before Tax Apex Clean Energy TopCo, LLC Apex Clean Energy TopCo, LLC [Member] Apex Clean Energy TopCo, LLC GTCR F Buyer Corp. and GTCR (D) Investors LP GTCR F Buyer Corp. and GTCR (D) Investors LP [Member] GTCR F Buyer Corp. and GTCR (D) Investors LP Nature of Expense [Axis] Nature of Expense [Axis] Smarsh Inc. and Skywalker TopCo, LLC Smarsh Inc. and Skywalker TopCo, LLC [Member] Smarsh Inc. and Skywalker TopCo, LLC Proceeds from sale of investment Proceeds from Sale, Maturity and Collection of Investments Unity Purchaser, LLC and Unity Ultimate Holdings, LP Unity Purchaser, LLC and Unity Ultimate Holdings, LP [Member] Unity Purchaser, LLC and Unity Ultimate Holdings, LP League One Volleyball Clubs, LLC and League One Volleyball, Inc. League One Volleyball Clubs, LLC and League One Volleyball, Inc. [Member] League One Volleyball Clubs, LLC and League One Volleyball, Inc. Derivative Instrument [Axis] Derivative Instrument [Axis] LeanTaaS Holdings, Inc. LeanTaaS Holdings, Inc. [Member] LeanTaaS Holdings, Inc. Non-controlled affiliate company investments Investment, Affiliated Issuer, Noncontrolled [Member] Tamarack Intermediate, L.L.C. and Tamarack Parent, L.L.C. Tamarack Intermediate, L.L.C. and Tamarack Parent, L.L.C. [Member] Tamarack Intermediate, L.L.C. and Tamarack Parent, L.L.C. Merit Software Finance Holdings, LLC Merit Software Finance Holdings, LLC [Member] Merit Software Finance Holdings, LLC Subordinated certificates of the SDLP Subordinated Certificates of the SDLP [Member] Subordinated Certificates of the SDLP Reef Lifestyle, LLC Reef Lifestyle, LLC [Member] Reef Lifestyle, LLC Vertex Service Partners, LLC and Vertex Service Partners Holdings, LLC Vertex Service Partners, LLC and Vertex Service Partners Holdings, LLC [Member] Vertex Service Partners, LLC and Vertex Service Partners Holdings, LLC United Digestive MSO Parent, LLC and Koln Co-Invest Unblocked, LP United Digestive MSO Parent, LLC and Koln Co-Invest Unblocked, LP [Member] United Digestive MSO Parent, LLC and Koln Co-Invest Unblocked, LP Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Cloud Software Group, Inc., Picard Parent, Inc., Cloud Software Group Holdings, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P. Cloud Software Group, Inc., Picard Parent, Inc., Cloud Software Group Holdings, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P. [Member] Cloud Software Group, Inc., Picard Parent, Inc., Cloud Software Group Holdings, Inc., Picard HoldCo, LLC and Elliott Alto Co-Investor Aggregator L.P. PCIA SPV-3, LLC and ASE Royal Aggregator, LLC PCIA SPV-3, LLC and ASE Royal Aggregator, LLC [Member] PCIA SPV-3, LLC and ASE Royal Aggregator, LLC January 2026 Notes January 2026 Notes (principal amount outstanding of $0 and $1,150, respectively) January 2026 Notes [Member] January 2026 Notes Professional Fighters League, LLC, PFL MMA LLC and PFL MMA, Inc. Professional Fighters League, LLC, PFL MMA LLC and PFL MMA, Inc. [Member] Professional Fighters League, LLC, PFL MMA LLC and PFL MMA, Inc. GHP-VGS Purchaser LLC GHP-VGS Purchaser LLC [Member] GHP-VGS Purchaser LLC Capital gains incentive fee payable Increase (Decrease) in Incentive Fee Payable, Capital-Gain-Based Sunrun Luna Holdco 2021, LLC Sunrun Luna Holdco 2021, LLC [Member] Sunrun Luna Holdco 2021, LLC Spruce Bidco II Inc. Spruce Bidco II Inc. [Member] Spruce Bidco II Inc. Gestion ABS Bidco Inc. / ABS Bidco Holdings Inc. Gestion ABS Bidco Inc. / ABS Bidco Holdings Inc. [Member] Gestion ABS Bidco Inc. / ABS Bidco Holdings Inc. Capital structuring service fees Capital structuring service fees and other income Fee Income Market yield Measurement Input, Credit Spread [Member] RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] PS Operating Company LLC and PS OP Holdings LLC (fka QC Supply, LLC) PS Operating Company LLC and PS OP Holdings LLC [Member] PS Operating Company LLC and PS OP Holdings LLC (fka QC Supply, LLC) Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash Schedule of Cash and Cash Equivalents [Table Text Block] Koala Investment Holdings, Inc. Koala Investment Holdings, Inc. [Member] Koala Investment Holdings, Inc. Bulab Holdings, Inc. and Buckman PPC Co-Invest LP Bulab Holdings, Inc. and Buckman PPC Co-Invest LP [Member] Bulab Holdings, Inc. and Buckman PPC Co-Invest LP Investment Company, Nonconsolidated Subsidiary [Axis] Investment Company, Nonconsolidated Subsidiary [Axis] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC [Member] CVP Holdco, Inc. and OMERS Wildcats Investment Holdings LLC Net accretion of discount on investments Accretion (Amortization) of Discounts and Premiums, Investments Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Optimizely North America Inc. and Optimizely Sweden Holdings AB Optimizely North America Inc. and Optimizely Sweden Holdings AB [Member] Optimizely North America Inc. and Optimizely Sweden Holdings AB Number of reportable segment Number of Reportable Segments Global Medical Response, Inc. and GMR Buyer Corp. Global Medical Response, Inc. and GMR Buyer Corp. [Member] Global Medical Response, Inc. and GMR Buyer Corp. ASP-r-pac Acquisition Co LLC and ASP-r-pac Holdings LP ASP-r-pac Acquisition CO LLC and ASP-r-pac Holdings LP [Member] ASP-r-pac Acquisition Co LLC and ASP-r-pac Holdings LP Income based fee payable Increase (Decrease) in Incentive Fee Payable, Income-Based Unrealized appreciation on investments Investment Company, Distributable Earnings (Loss), Accumulated Appreciation (Depreciation) Capital available to the SDLP Investment Owned, Available Capital Investment Owned, Available Capital Teasdale Foods, Inc. and Familia Group Holdings Inc. Teasdale Foods, Inc. and Familia Group Holdings Inc. [Member] Teasdale Foods, Inc. and Familia Group Holdings Inc. LBC Woodlands Purchaser LLC and LBC Woodlands Holdings LP LBC Woodlands Purchaser LLC and LBC Woodlands Holdings LP [Member] LBC Woodlands Purchaser LLC and LBC Woodlands Holdings LP Entity Address, City or Town Entity Address, City or Town Fair Value Derivatives Derivative, Fair Value, Net Statement of Financial Position [Abstract] EMB Purchaser, Inc. EMB Purchaser, Inc. [Member] EMB Purchaser, Inc. Duraserv LLC Duraserv LLC [Member] Duraserv LLC Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Fever Labs, Inc. Fever Labs, Inc. [Member] Fever Labs, Inc. Level 2 Fair Value, Inputs, Level 2 [Member] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Net investment income for period (in dollars per share) Investment Company, Investment Income (Loss), Per Share, Basic Incentive Rate, Realized Capital Gains Investment Advisory And Management Agreement - Incentive Rate, Realized Capital Gains [Member] Investment Advisory And Management Agreement - Incentive Rate, Realized Capital Gains Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Coupon Investment Interest Rate WSHP FC Acquisition LLC and WSHP FC Holdings LLC WSHP FC Acquisition LLC and WSHP FC Holdings LLC [Member] WSHP FC Acquisition LLC and WSHP FC Holdings LLC Foreign currency forward contract, GBP 2 Foreign currency forward contract, GBP 2 [Member] Foreign currency forward contract, GBP 2 Management fees and other expenses Other Expenses Pave America Holding, LLC Pave America Holding, LLC [Member] Pave America Holding, LLC Diamond Mezzanine 24 LLC Diamond Mezzanine 24 LLC [Member] Diamond Mezzanine 24 LLC Dividends [Domain] Dividends [Domain] Dividend income (excluding PIK dividend income) Dividend income Dividend Income, Operating Subsequent Event Type [Axis] Subsequent Event Type [Axis] Loans on non-accrual status, as a percent of total investments at amortized cost Investment Owned, Non-Accrual Status, Percent of Cost Investment Owned, Non-Accrual Status, Percent of Cost The Hiller Companies, LLC The Hiller Companies, LLC [Member] The Hiller Companies, LLC Alcresta Therapeutics, Inc. Alcresta Therapeutics, Inc. [Member] Alcresta Therapeutics, Inc. Concentration Risk Type [Axis] Concentration Risk Type [Axis] Schedule of Long-Term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Yield on investment, at cost Investment Owned, at Cost, Yield Investment Owned, at Cost, Yield Systems Planning and Analysis, Inc. Systems Planning and Analysis, Inc. [Member] Systems Planning and Analysis, Inc. Florida Food Products, LLC Florida Food Products, LLC [Member] Florida Food Products, LLC Payable to participants Payable To Participants Payable To Participants Use of Estimates in the Preparation of Consolidated Financial Statements Use of Estimates, Policy [Policy Text Block] April 2036 Class B CLO Notes April 2036 Class B CLO Notes [Member] April 2036 Class B CLO Notes Related Party [Axis] Related and Nonrelated Parties [Axis] Food and Beverage Sector Food and Beverage Sector [Member] Wellness AcquisitionCo, Inc Wellness AcquisitionCo, Inc [Member] Wellness AcquisitionCo, Inc Payable to participants Increase (Decrease) In Payables To Participants Increase (Decrease) In Payables To Participants Saber Parent Holdings Corp. and MSHC, Inc. Saber Parent Holdings Corp. and MSHC, Inc. [Member] Saber Parent Holdings Corp. and MSHC, Inc. Debt Instrument, Redemption, Period Two Debt Instrument, Redemption, Period Two [Member] High Street Buyer, Inc. and High Street Holdco LLC High Street Buyer, Inc. and High Street Holdco LLC [Member] High Street Buyer, Inc. and High Street Holdco LLC Letters of credit outstanding, amount, year two Letters Of Credit Outstanding, Amount, Year Two Letters Of Credit Outstanding, Amount, Year Two Document Period End Date Document Period End Date Minimum required ratio of total assets to total indebtedness Debt Instrument, Covenant, Assets To Debt Ratio, Minimum Debt Instrument, Covenant, Assets To Debt Ratio, Minimum Daylight Beta Parent LLC and CFCo, LLC Daylight Beta Parent LLC and CFCo, LLC [Member] Daylight Beta Parent LLC and CFCo, LLC Shares purchased by plan agent to satisfy dividends declared and payable during the period for stockholders (in shares) Stock Issued During Period, Shares Purchased To Satisfy Dividends Stock Issued During Period, Shares Purchased To Satisfy Dividends Aggregate Principal Amount Issued Debt Instrument, Face Amount Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P. Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P. [Member] Consilio Midco Limited, Compusoft US LLC, and Consilio Investment Holdings, L.P. Term of debt instrument Debt Instrument, Term ESCP PPG Holdings, LLC ESCP PPG Holdings, LLC [Member] ESCP PPG Holdings, LLC Cash denominated in foreign currencies Cash and Cash Equivalent, Held in Foreign Currency HH-Stella, Inc. and Bedrock Parent Holdings, LP HH-Stella, Inc. and Bedrock Parent Holdings, LP [Member] HH-Stella, Inc. and Bedrock Parent Holdings, LP Kairos Bidco Limited Kairos Bidco Limited [Member] Kairos Bidco Limited Total Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] SageSure Holdings, LLC & Insight Catastrophe Group, LLC SageSure Holdings, LLC & Insight Catastrophe Group, LLC [Member] SageSure Holdings, LLC & Insight Catastrophe Group, LLC Adonis Acquisition Holdings LLC and Adonis Acquisition Holdings Parent LLC Adonis Acquisition Holdings LLC and Adonis Acquisition Holdings Parent LLC [Member] Adonis Acquisition Holdings LLC and Adonis Acquisition Holdings Parent LLC Revalize, Inc. Revalize, Inc. [Member] Revalize, Inc. Interest rate swap 3 Interest Rate Swap 3 [Member] Interest Rate Swap 3 Total unfunded equity commitments Investment Company, Financial Support to Investee Contractually Required, Not Provided, Amount, Including Adjustments Investment Company, Financial Support to Investee Contractually Required, Not Provided, Amount, Including Adjustments Rawlings Sporting Goods Company, Inc. and SEP Diamond Fund, L.P. Rawlings Sporting Goods Company, Inc. and SEP Diamond Fund, L.P. [Member] Rawlings Sporting Goods Company, Inc. and SEP Diamond Fund, L.P. Net unrealized gains (losses) on investments and foreign currency transactions Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Consolidation Items [Domain] Consolidation Items [Domain] ADL CLO 1 Debt Securitization ADL CLO 1 Debt Securitization [Member] ADL CLO 1 Debt Securitization Schedule of Loan and Private Equity Commitments Schedule For Financial Support For Nonconsolidated Entity [Table Text Block] Schedule For Financial Support For Nonconsolidated Entity Ratio of operating expenses to average net assets Investment Company, Expense Ratio, after Fee Waiver and Incentive Fee Deduction Datix Bidco Limited and RL Datix Holdings (USA), Inc. Datix Bidco Limited and RL Datix Holdings (USA), Inc. [Member] Datix Bidco Limited and RL Datix Holdings (USA), Inc. Schedule of Investments Investment Holdings, Schedule of Investments [Table Text Block] EARNINGS PER SHARE Earnings Per Share [Text Block] NET INCOME PER COMMON SHARE Earnings Per Share [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Capital gains incentive fee payable Incentive Fee Payable, Capital-Gain-Based Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Expense Reimbursement Expense Reimbursement [Member] Expense Reimbursement Total liabilities Liabilities Trading Symbol Trading Symbol Discount rate Measurement Input, Discount Rate [Member] Schedule of Interest Rate Swap Instruments Schedule of Interest Rate Derivatives [Table Text Block] Pluralsight, LLC and Pluralsight Holdings, LLC and Paradigmatic Holdco LLC Pluralsight, LLC and Pluralsight Holdings, LLC and Paradigmatic Holdco LLC [Member] Pluralsight, LLC and Pluralsight Holdings, LLC and Paradigmatic Holdco LLC Net unrealized losses Net unrealized (losses) gains on investments, foreign currency and other transactions Net unrealized losses on investments, foreign currency and other transactions Net unrealized gains (losses) on investments, foreign currency and other transactions Unrealized Gain (Loss), Investment, Derivative, and Foreign Currency Transaction Price Change, Operating, after Tax Revival Animal Health, LLC Revival Animal Health, LLC [Member] Revival Animal Health, LLC Company Selected Measure Name Company Selected Measure Name Sale of Stock [Domain] Sale of Stock [Domain] Bobcat Purchaser, LLC and Bobcat Topco, L.P. Bobcat Purchaser, LLC and Bobcat Topco, L.P. [Member] Bobcat Purchaser, LLC and Bobcat Topco, L.P. Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash Restrictions on Cash and Cash Equivalents [Table Text Block] Company Receives Derivative, Fixed Interest Rate Alternate Base Rate Alternate Base Rate [Member] Alternate Base Rate Walnut Parent, Inc. Walnut Parent, Inc. [Member] Walnut Parent, Inc. Cascade Parent Inc., Cascade Intermediate II, Inc., and Haveli Cascade Co-Invest I, L.P. Cascade Parent Inc., Cascade Intermediate II, Inc., and Haveli Cascade Co-Invest I, L.P. [Member] Cascade Parent Inc., Cascade Intermediate II, Inc., and Haveli Cascade Co-Invest I, L.P. February 5, 2025 O 2025 M2 Dividends [Member] Dividend Declared, February Five Two Thousand Twenty Five O 2025 M2 Dividends Watermill Express, LLC and Watermill Express Holdings, LLC Watermill Express, LLC and Watermill Express Holdings, LLC [Member] Watermill Express, LLC and Watermill Express Holdings, LLC Eagle Football Holdings BidCo Limited Eagle Football Holdings BidCo Limited and Eagle Football Holdings Limited [Member] Eagle Football Holdings BidCo Limited and Eagle Football Holdings Limited Percentage of line of credit commitment Line of Credit Facility, Commitment Fee Percentage Credit Facility [Domain] Credit Facility [Domain] ADG, LLC, GEDC Equity, LLC and RC IV GEDC Investor LLC ADG, LLC, GEDC Equity, LLC and RC IV GEDC Investor LLC [Member] ADG, LLC, GEDC Equity, LLC and RC IV GEDC Investor LLC OTG Concessions Management, LLC and Octa Parent Holdings, LLC OTG Concessions Management, LLC and Octa Parent Holdings, LLC [Member] OTG Concessions Management, LLC and Octa Parent Holdings, LLC Per share amount (in usd per share) Common Stock, Dividends, Per Share, Cash Paid January 2038 Class B CLO Notes January 2038 Class B CLO Notes [Member] January 2038 Class B CLO Notes Redemptions (cost) Investments In And Advances To Affiliates, At Fair Value, Gross Reductions, Redemptions Investments In And Advances To Affiliates, At Fair Value, Gross Reductions, Redemptions Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Avalign Holdings, Inc. and Avalign Technologies, Inc. Avalign Holdings, Inc. and Avalign Technologies, Inc. [Member] Avalign Holdings, Inc. and Avalign Technologies, Inc. Transfers out of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Line of Credit Facility [Table] Line of Credit Facility [Table] Foreign currency forward contract, NZD Foreign currency forward contract, NZD [Member] Foreign currency forward contract, NZD Dividends declared and payable during the period Dividends Payable Derivative Asset, Type [Extensible Enumeration] Derivative Asset, Type [Extensible Enumeration] Elemica Parent, Inc. & EZ Elemica Holdings, Inc. Elemica Parent, Inc. & EZ Elemica Holdings, Inc. [Member] Elemica Parent, Inc. & EZ Elemica Holdings, Inc. HP RSS Buyer, Inc. HP RSS Buyer, Inc. [Member] HP RSS Buyer, Inc. Financial Support to Nonconsolidated Legal Entity [Axis] Financial Support to Nonconsolidated Legal Entity [Axis] Gross Proceeds Sale of Stock, Gross Proceeds Received Sale of Stock, Gross Proceeds Received Schedule of Changes in Investments that use Level 3 Inputs Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Other general and administrative Other General and Administrative Expense Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] PumpTech, LLC and Impel CV-B, LP PumpTech, LLC and Impel CV-B, LP [Member] PumpTech, LLC and Impel CV-B, LP Proprietary Portfolio Management Software Agreement Proprietary Portfolio Management Software Agreement [Member] Proprietary Portfolio Management Software Agreement Investment Company, Financial Highlights [Roll Forward] Investment Company, Financial Highlights [Roll Forward] Equity Ivy Hill Asset Management, L.P., Equity Investment [Member] Ivy Hill Asset Management, L.P., Equity Investment Award Timing Predetermined Award Timing Predetermined [Flag] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] Level 1 Fair Value, Inputs, Level 1 [Member] Elevation Services Parent Holdings, LLC Elevation Services Parent Holdings, LLC [Member] Elevation Services Parent Holdings, LLC Realized gain (loss) on sale of investments Gain (Loss) on Sale of Investments RD Holdco Inc. RD Holdco Inc. [Member] RD Holdco Inc. Divisions Holding Corporation, Divisions, Inc. and RC V Tecmo Investor LLC Divisions Holding Corporation, Divisions, Inc. and RC V Tecmo Investor LLC [Member] Divisions Holding Corporation, Divisions, Inc. and RC V Tecmo Investor LLC Fair Value of Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc. Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc. [Member] Display Holding Company, Inc., Saldon Holdings, Inc. and Fastsigns Holdings Inc. Sunrun Atlas Depositor 2019-2, LLC and Sunrun Atlas Holdings 2019-2, LLC Sunrun Atlas Depositor 2019-2, LLC and Sunrun Atlas Holdings 2019-2, LLC [Member] Sunrun Atlas Depositor 2019-2, LLC and Sunrun Atlas Holdings 2019-2, LLC Sun Acquirer Corp. and Sun TopCo, LP Sun Acquirer Corp. and Sun TopCo, LP [Member] Sun Acquirer Corp. and Sun TopCo, LP Balrog Acquisition, Inc., Balrog Topco, Inc. and Balrog Parent, L.P. Balrog Acquisition, Inc., Balrog Topco, Inc. and Balrog Parent, L.P. [Member] Balrog Acquisition, Inc., Balrog Topco, Inc. and Balrog Parent, L.P. Unrealized Appreciation / (Depreciation) Derivative Asset, Gross Asset Including Not Subject to Master Netting Arrangement GMF Parent, Inc. and GMF Group Holdings, LP GMF Parent, Inc. and GMF Group Holdings, LP [Member] GMF Parent, Inc. and GMF Group Holdings, LP Merit Financial Group, LLC and CWC Fund I Co-Invest (MFA) LP Merit Financial Group, LLC and CWC Fund I (MFA) LP [Member] Merit Financial Group, LLC and CWC Fund I (MFA) LP BrightStar Group Holdings, Inc. BrightStar Group Holdings, Inc. [Member] BrightStar Group Holdings, Inc. Term debt securitization Loan, Securitized or Asset-Backed Financing Arrangement, Principal Outstanding Steward Partners Global Advisory, LLC, Steward Partners Investment Advisory, LLC, Steward Partners Intermediate II, LLC, and Steward Partners New Holdings, LLC, Steward Partners Global Advisory, LLC, Steward Partners Investment Advisory, LLC, Steward Partners Intermediate II, LLC, and Steward Partners New Holdings, LLC, [Member] Steward Partners Global Advisory, LLC, Steward Partners Investment Advisory, LLC, Steward Partners Intermediate II, LLC, and Steward Partners New Holdings, LLC, Mavis Tire Express Services Topco Corp., Metis HoldCo, Inc., and Metis TopCo, LP Mavis Tire Express Services Topco Corp., Metis HoldCo, Inc., and Metis TopCo, LP [Member] Mavis Tire Express Services Topco Corp., Metis HoldCo, Inc., and Metis TopCo, LP Fair value disclosures of long-term debt Long-Term Debt, Fair Value Legends Hospitality Holding Company, LLC, ASM Buyer, Inc., Legends ASM Holdco I, LLC, and Stadium Coinvest (B)-III, L.P. Legends Hospitality Holding Company, LLC, ASM Buyer, Inc., Legends ASM Holdco I, LLC, and Stadium Coinvest (B)-III, L.P. [Member] Legends Hospitality Holding Company, LLC, ASM Buyer, Inc., Legends ASM Holdco I, LLC, and Stadium Coinvest (B)-III, L.P. Subordinated loan Ivy Hill Asset Management, L.P., Debt Investment [Member] Ivy Hill Asset Management, L.P., Debt Investment Elemica, Inc. and EZ Elemica Holdings, Inc. Elemica, Inc. and EZ Elemica Holdings, Inc. [Member] Elemica, Inc. and EZ Elemica Holdings, Inc. Concentration Risk Type [Domain] Concentration Risk Type [Domain] Interest rate swap 2 Interest Rate Swap 2 [Member] Interest Rate Swap 2 GS SEER Group Borrower LLC and GS SEER Group Holdings, LLC GS SEER Group Borrower LLC and GS SEER Group Holdings, LLC [Member] GS SEER Group Borrower LLC and GS SEER Group Holdings, LLC Other operating expenses Other Operating Expenses [Member] Other Operating Expenses Fair Value Disclosures [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] November 2031 Notes November 2031 Notes (principal amount outstanding of $700) November 2031 Notes [Member] November 2031 Notes Change in fair value result effective hedging relationship, increase (decrease) Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments Letter of credit facility outstanding Long-Term Line of Credit Expiration Date Trading Arrangement Expiration Date Kings Buyer, LLC Kings Buyer, LLC [Member] Kings Buyer, LLC IRI Group Holdings, Inc. and Circana, LLC IRI Group Holdings, Inc. and Circana, LLC [Member] IRI Group Holdings, Inc. and Circana, LLC Subordinated Subordinated Debt [Member] BCTO Ignition Purchaser, Inc. BCTO Ignition Purchaser, Inc. [Member] BCTO Ignition Purchaser, Inc. Consumer Durables and Apparel Consumer Durables And Apparel Sector [Member] Consumer Durables And Apparel Sector Software and Services Software And Services [Member] Software And Services Borrower R365 Holdings LLC Borrower R365 Holdings LLC [Member] Borrower R365 Holdings LLC Controlled Affiliate Affiliated Entity [Member] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] ACP Avenu Midco LLC ACP Avenu Midco LLC [Member] ACP Avenu Midco LLC Net proceeds from issuance of common stock Proceeds from Issuance of Common Stock NET INVESTMENT INCOME Net investment income Investment Income, Operating, after Expense and Tax RE Community Holdings GP, LLC and RE Community Holdings, LP RE Community Holdings GP, LLC and RE Community Holdings, LP [Member] RE Community Holdings GP, LLC and RE Community Holdings, LP Capital gains incentive fee Incentive Fee Expense (Reversal) Incentive Fee Expense (Reversal) Revolving Funding Facility Revolving Funding Facility [Member] Revolving Funding Facility Related Party Transaction [Axis] Related Party Transaction [Axis] QBS Parent, Inc. QBS Parent, Inc. [Member] QBS Parent, Inc. BVI Medical, Inc. and BVI Group Limited BVI Medical, Inc. and BVI Group Limited [Member] BVI Medical, Inc. and BVI Group Limited FEH Group, LLC FEH Group, LLC [Member] FEH Group, LLC Alcami Corporation and ACM Holdings I, LLC Alcami Corporation and ACM Holdings I, LLC [Member] Alcami Corporation and ACM Holdings I, LLC Convera International Holdings Limited and Convera International Financial S.A R.L. Convera International Holdings Limited and Convera International Financial S.A R.L. [Member] Convera International Holdings Limited and Convera International Financial S.A R.L. Foreign currency forward contract, CAD 1 Foreign currency forward contract, CAD 1 [Member] Foreign currency forward contract, CAD 1 Segments [Domain] Segments [Domain] Interest rate swap Interest Rate Swap [Member] DEBT Debt Disclosure [Text Block] Open Forward Foreign Currency Contract, Identifier [Axis] Open Forward Foreign Currency Contract, Identifier [Axis] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Term loan tranche Secured debt Secured Debt [Member] TopGolf International, LLC and TopGolf Topco, LLC TopGolf International, LLC and TopGolf Topco, LLC [Member] TopGolf International, LLC and TopGolf Topco, LLC Total expenses Costs and Expenses Effective Stated Interest Rate Effective stated interest rate Debt Instrument, Interest Rate, Stated Percentage Total stockholders’ equity Beginning balance Ending balance Net assets at end of period Equity, Attributable to Parent Leviathan Intermediate Holdco, LLC and Leviathan Holdings, L.P. Leviathan Intermediate Holdco, LLC and Leviathan Holdings, L.P. [Member] Leviathan Intermediate Holdco, LLC and Leviathan Holdings, L.P. Less: commitments substantially at discretion of the Company Less: equity commitments substantially at discretion of the Company Investment Company, Financial Support to Investee, Discretionary, Amount BNP Funding Facility BNP Funding Facility [Member] BNP Funding Facility Livewire Acquisition, Inc. and Livewire Co-Invest Holdings, LP Livewire Acquisition, Inc. and Livewire Co-Invest Holdings, LP [Member] Livewire Acquisition, Inc. and Livewire Co-Invest Holdings, LP Spaceship Purchaser, Inc. Spaceship Purchaser, Inc. [Member] Spaceship Purchaser, Inc. BGIF IV Fearless Utility Services, Inc. BGIF IV Fearless Utility Services, Inc. [Member] BGIF IV Fearless Utility Services, Inc. ASSETS Assets Assets [Abstract] EBITDA multiple Measurement Input, EBITDA Multiple [Member] Talon Buyer Inc. and Talon Holdings SCSP Talon Buyer Inc. and Talon Holdings SCSP [Member] Talon Buyer Inc. and Talon Holdings SCSP Net realized (losses) gains on investments, foreign currency, extinguishment of debt and other transactions Realized Gain (Loss), Investment, Derivative, And Foreign Currency Transaction Price Change, Operating, After Tax, Including Gain (Loss) On Debt Extinguishment Realized Gain (Loss), Investment, Derivative, And Foreign Currency Transaction Price Change, Operating, After Tax, Including Gain (Loss) On Debt Extinguishment LEG Purchaser Inc LEG Purchaser Inc [Member] LEG Purchaser Inc Airx Climate Solutions, Inc. Airx Climate Solutions, Inc. [Member] Airx Climate Solutions, Inc. Insider Trading Policies and Procedures [Line Items] Investment, Issuer Affiliation [Domain] Investment, Issuer Affiliation [Domain] Term of debt maturity extension option Debt Instrument, Extension Option, Term Debt Instrument, Extension Option, Term Primo Water Holdings Inc / Triton Water Holdings Inc Primo Water Holdings Inc / Triton Water Holdings Inc [Member] Primo Water Holdings Inc / Triton Water Holdings Inc SSE Buyer, Inc., Supply Source Enterprises, Inc., Impact Products LLC, The Safety Zone, LLC and SSE Parent, LP SSE Buyer, Inc., Supply Source Enterprises, Inc., Impact Products LLC, The Safety Zone, LLC and SSE Parent, LP [Member] SSE Buyer, Inc., Supply Source Enterprises, Inc., Impact Products LLC, The Safety Zone, LLC and SSE Parent, LP Edition Holdings, Inc. and Enverus, Inc. Edition Holdings, Inc. and Enverus, Inc. [Member] Edition Holdings, Inc. and Enverus, Inc. Net realized and unrealized gains (losses) on investments, foreign currency and other transactions Total net realized and unrealized gains (losses) on investments, foreign currency and other transactions Gain (Loss), Investment, Derivative, and Foreign Currency Transaction Price Change, Operating, after Tax PDDS HoldCo, Inc. PDDS HoldCo, Inc. [Member] PDDS HoldCo, Inc. Capstone Acquisition Holdings, Inc., Capstone Logistics Holdings, Inc. and Capstone Parent Holdings, LP Capstone Acquisition Holdings, Inc., Capstone Logistics Holdings, Inc. and Capstone Parent Holdings, LP [Member] Capstone Acquisition Holdings, Inc. and Capstone Parent Holdings, LP Number of operating segment Number of Operating Segments Incentive Rate, Net Assets For Deferral Of Cash Payments Investment Advisory And Management Agreement - Incentive Rate, Net Assets For Deferral Of Cash Payments [Member] Investment Advisory And Management Agreement - Incentive Rate, Net Assets For Deferral Of Cash Payments Consolidated IHAM Vehicles IHAM Vehicles [Member] IHAM Vehicles Entity Central Index Key Entity Central Index Key Capital in excess of par value Additional Paid in Capital, Common Stock Equity Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] TSS Buyer, LLC TSS Buyer, LLC [Member] TSS Buyer, LLC April 29, 2025 O 2025 M4 Dividends [Member] Dividend Declared, May First Two Thousand Twenty Four O 2024 M5 Dividends Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Beacon Pointe Harmony, LLC Beacon Pointe Harmony, LLC [Member] Beacon Pointe Harmony, LLC BR PJK Produce, LLC BR PJK Produce, LLC [Member] BR PJK Produce, LLC Schedule of Investments [Line Items] Schedule of Investments [Line Items] Dividend Income Recognition Revenue Recognition, Dividends [Policy Text Block] SageSure Holdings, LLC and SageSure LLC SageSure Holdings, LLC and SageSure LLC [Member] SageSure Holdings, LLC and SageSure LLC Activate Holdings (US) Corp. and CrossPoint Capital AS SPV, LP Activate Holdings (US) Corp. and CrossPoint Capital AS SPV, LP [Member] Activate Holdings (US) Corp. and CrossPoint Capital AS SPV, LP Net realized and unrealized gains (losses) for period (in dollars per share) Investment Company, Gain (Loss) on Investment, Per Share Issuances of common stock (in dollars per share) Investment Company, Share Issuance, Per Share Hedged Item Designated as Hedging Instrument [Member] Centralsquare Technologies, LLC and Supermoose Newco, Inc. Centralsquare Technologies, LLC and Supermoose Newco, Inc. [Member] Centralsquare Technologies, LLC and Supermoose Newco, Inc. Net unrealized gains (losses): Debt and Equity Securities, Unrealized Gain (Loss) Interest rate spread Debt Instrument, Basis Spread on Variable Rate Base management fee Base Management Fees [Member] Base Management Fees Schedule of Dividend Reinvestment Plan Activity Schedule of Dividends Payable [Table Text Block] Variable Rate [Domain] Variable Rate [Domain] Debt Instrument, Redemption, Period One Debt Instrument, Redemption, Period One [Member] All Individuals All Individuals [Member] Investment, Issuer Name [Domain] Investment, Issuer Name [Domain] Base Rate, After Reinvestment Period Base Rate, After Reinvestment Period [Member] Base Rate, After Reinvestment Period Dividends paid Payments of Dividends 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] AQ Sunshine, Inc. AQ Sunshine, Inc. [Member] AQ Sunshine, Inc. Pritchard Industries, LLC and LJ Pritchard TopCo Holdings, LLC Pritchard Industries, LLC and LJ Pritchard TopCo Holdings, LLC [Member] Pritchard Industries, LLC and LJ Pritchard TopCo Holdings, LLC Net realized gains (losses): Debt and Equity Securities, Realized Gain (Loss) Statement [Line Items] Statement [Line Items] Total assets Assets Convertible Debt Convertible Debt [Member] Industry Sector [Axis] Industry Sector [Axis] Redwood Services LP Redwood Services LP [Member] Redwood Services LP TSWT Acquisition, Inc. and TSWT Holdings, LLC TSWT Acquisition, Inc. and TSWT Holdings, LLC [Member] TSWT Acquisition, Inc. and TSWT Holdings, LLC Operating Segments Operating Segments [Member] LiveBarn Inc., LiveBarn US, LLC, LiveBarn Canada I, ULC, and Royal Topco Holdings, LLC LiveBarn Inc., LiveBarn US, LLC, LiveBarn Canada I, ULC, and Royal Topco Holdings, LLC [Member] LiveBarn Inc., LiveBarn US, LLC, LiveBarn Canada I, ULC, and Royal Topco Holdings, LLC Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Aventine Intermediate LLC & Aventine Holdings II LLC Aventine Intermediate LLC & Aventine Holdings II LLC [Member] Aventine Intermediate LLC & Aventine Holdings II LLC First lien senior secured loans Debt Securities, First Lien Senior Secured Loans [Member] Debt Securities, First Lien Senior Secured Loans PEO PEO [Member] Derivative Asset, Counterparty Name [Extensible Enumeration] Derivative Asset, Counterparty Name [Extensible Enumeration] REALIZED AND UNREALIZED GAINS (LOSSES) ON INVESTMENTS, FOREIGN CURRENCY AND OTHER TRANSACTIONS: Gain (Loss), Investment and Derivative, Operating, and Foreign Currency Transaction, before Tax [Abstract] Aerin Medical Inc. Aerin Medical Inc. [Member] Aerin Medical Inc. Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount QF Holdings, Inc. QF Holdings, Inc. [Member] QF Holdings, Inc. IFH Franchisee Holdings, LLC IFH Franchisee Holdings, LLC [Member] IFH Franchisee Holdings, LLC Accumulated Undistributed (Overdistributed) Earnings Retained Earnings [Member] Revolving Credit Facility Revolving tranche Revolving Credit Facility [Member] Victors Purchaser, LLC and WP Victors Co-Investment, L.P. Victors Purchaser, LLC and WP Victors Co-Investment, L.P. [Member] Victors Purchaser, LLC and WP Victors Co-Investment, L.P. Cradle Lux Bidco S.A.R.L. and Hamilton Thorne Inc. Cradle Lux Bidco S.A.R.L. and Hamilton Thorne Inc. [Member] Cradle Lux Bidco S.A.R.L. and Hamilton Thorne Inc. Net increase in stockholders' equity resulting from operations (in dollars per share) Investment Company, Investment Income (Loss) from Operations, Per Share Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, shares outstanding (in shares) Shares outstanding at end of period (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] SV Newco 2, Inc. and Site 2020 Incorporated SV Newco 2, Inc. and Site 2020 Incorporated [Member] SV Newco 2, Inc. and Site 2020 Incorporated Diluted net income per common share (in usd per share) Net increase in stockholders’ equity resulting from operations per share—diluted (in usd per share) Earnings Per Share, Diluted Revolving loan commitments Revolving Loan Commitments [Member] Revolving Loan Commitments Other Other Sector [Member] Other Sector Majesco and Magic Topco, L.P. Majesco and Magic Topco, L.P. [Member] Majesco and Magic Topco, L.P. Interest income (excluding payment-in-kind (“PIK”) interest income) Interest Income, Operating, Paid in Cash Yield on investment, at fair value Investment Owned, at Fair Value, Yield Investment Owned, at Fair Value, Yield Remaining amount available for borrowing under line of credit Line of Credit Facility, Remaining Borrowing Capacity Dividend income (excluding PIK dividend income) Dividend Income, Operating, Excluding Paid-In-Kind Dividend Income, Operating, Excluding Paid-In-Kind Total return based on market value Investment Company, Total Return, Market Value April 2036 CLO Notes April 2036 CLO Secured Notes [Member] April 2036 CLO Secured Notes Centric Brands LLC, Centric Brands TopCo, LLC, and Centric Brands L.P. Centric Brands LLC, Centric Brands TopCo, LLC, and Centric Brands L.P. [Member] Centric Brands LLC, Centric Brands TopCo, LLC, and Centric Brands L.P. Higginbotham Insurance Agency, Inc., HIG Operations Holdings, Inc., And HIG Intermediate, Inc. Higginbotham Insurance Agency, Inc., HIG Operations Holdings, Inc., And HIG Intermediate, Inc. [Member] Higginbotham Insurance Agency, Inc., HIG Operations Holdings, Inc., And HIG Intermediate, Inc. Faraday Buyer, LLC Faraday Buyer, LLC [Member] Faraday Buyer, LLC NMN Holdings III Corp. and NMN Holdings LP NMN Holdings III Corp. and NMN Holdings LP [Member] NMN Holdings III Corp. and NMN Holdings LP Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Severin Acquisition, LLC Severin Acquisition, LLC [Member] Severin Acquisition, LLC Mid-Atlantic US Mid-Atlantic Region [Member] US Mid-Atlantic Region SGP Shaka HoldCo, LLC and SGP Shaka JV, LLC SGP Shaka HoldCo, LLC and SGP Shaka JV, LLC [Member] SGP Shaka HoldCo, LLC and SGP Shaka JV, LLC Transit Technologies LLC Transit Technologies LLC [Member] Transit Technologies LLC Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Investment, Issuer Name [Axis] Investment, Issuer Name [Axis] Visual Edge Technology, Inc., VEIT, LLC, and VEIT Topco, LLC, Visual Edge Technology, Inc., VEIT, LLC, and VEIT Topco, LLC [Member] Visual Edge Technology, Inc., VEIT, LLC, and VEIT Topco, LLC The Teaching Company Holdings, Inc. The Teaching Company Holdings, Inc. [Member] The Teaching Company Holdings, Inc. PetVet Care Centers, LLC PetVet Care Centers, LLC [Member] PetVet Care Centers, LLC Salt & Stone, Inc. and Leila Parent, LLC Salt & Stone, Inc. and Leila Parent, LLC [Member] Salt & Stone, Inc. and Leila Parent, LLC Reagent Chemical & Research, LLC Reagent Chemical & Research, LLC [Member] Reagent Chemical & Research, LLC Triwizard Holdings, Inc. and Triwizard Parent, LP Triwizard Holdings, Inc. and Triwizard Parent, LP [Member] Triwizard Holdings, Inc. and Triwizard Parent, LP Sale of Stock [Axis] Sale of Stock [Axis] Opal Fuels Intermediate HoldCo LLC, and Opal Fuels Inc. Opal Fuels Intermediate HoldCo LLC, and Opal Fuels Inc. [Member] Opal Fuels Intermediate HoldCo LLC, and Opal Fuels Inc. Vamos Bidco, Inc. Vamos Bidco, Inc. [Member] Vamos Bidco, Inc. OPERATING ACTIVITIES: Cash Provided by (Used in) Operating Activity, Continuing Operation [Abstract] Net operating income Operating Income (Loss) Raptor Technologies, LLC, Sycamore Bidco LTD and Rocket Parent, LLC Raptor Technologies, LLC, Sycamore Bidco LTD and Rocket Parent, LLC [Member] Raptor Technologies, LLC, Sycamore Bidco LTD and Rocket Parent, LLC Spirit RR Holdings, Inc. and Winterfell Co-Invest SCSp Spirit RR Holdings, Inc. and Winterfell Co-Invest SCSp [Member] Spirit RR Holdings, Inc. and Winterfell Co-Invest SCSp Debt Instrument, Redemption, Period Four Debt Instrument, Redemption, Period Four [Member] Schedule of Dividends Declared and Payable Dividends Declared [Table Text Block] Delayed draw loan commitments Delayed Draw Term Loan (DDTL) [Member] Total equity Members' Equity Number of quarters considered in base management fee calculation Investment Company, Base Management Fee Calculation, Number Of Quarters Investment Company, Base Management Fee Calculation, Number Of Quarters OakBridge Insurance Agency LLC and Maple Acquisition Holdings, LP OakBridge Insurance Agency LLC and Maple Acquisition Holdings, LP [Member] OakBridge Insurance Agency LLC and Maple Acquisition Holdings, LP July 2029 Notes July 2029 Notes (principal amount outstanding of $850) July 2029 Notes [Member] July 2029 Notes Secured borrowings, net Increase (Decrease) in Securities Loaned Transactions Pelican Products, Inc. Pelican Products, Inc. [Member] Pelican Products, Inc. Related Party Transaction [Domain] Related Party Transaction [Domain] Horizon Avionics Buyer, LLC and Horizon CTS Buyer, LLC Horizon Avionics Buyer, LLC and Horizon CTS Buyer, LLC [Member] Horizon Avionics Buyer, LLC and Horizon CTS Buyer, LLC Senior subordinated loans Senior Subordinated Loans [Member] Registrar Intermediate, LLC and PSP Registrar Co-Investment Fund, L.P. Registrar Intermediate, LLC and PSP Registrar Co-Investment Fund, L.P. [Member] Registrar Intermediate, LLC and PSP Registrar Co-Investment Fund, L.P. Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Fair Value Investments at fair value Total investments Investment Owned, Fair Value Allclear Commercial Inc., Allclear Military Inc., Allclear Space Inc., and Allclear Group LLC Allclear Commercial Inc., Allclear Military Inc., Allclear Space Inc., and Allclear Group LLC [Member] Allclear Commercial Inc., Allclear Military Inc., Allclear Space Inc., and Allclear Group LLC SMBC Funding Facility SMBC Funding Facility [Member] SMBC Funding Facility DriveCentric Holdings, LLC DriveCentric Holdings, LLC [Member] DriveCentric Holdings, LLC Debt Notes and Loans Payable Petrus Buyer, Inc. Petrus Buyer, Inc. [Member] Petrus Buyer, Inc. Administrative and other fees Administrative Fees Expense CP Program CP Program [Member] CP Program Common stock, shares issued (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Issued Balance at the beginning Balance at the end Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value ORGANIZATION Business Description and Basis of Presentation [Text Block] Foundation Consumer Brands, LLC Foundation Consumer Brands, LLC [Member] Foundation Consumer Brands, LLC Foreign currency forward contract, CAD 2 Foreign currency forward contract, CAD 2 [Member] Foreign currency forward contract, CAD 2 October 2036 Class B CLO Loans October 2036 Class B CLO Loans [Member] October 2036 Class B CLO Loans FlyWheel Acquireco, Inc. FlyWheel Acquireco, Inc. [Member] FlyWheel Acquireco, Inc. July 2038 CLO Notes, Class A-1-R Senior Floating Rate Notes July 2038 CLO Notes, Class A-1-R Senior Floating Rate Notes [Member] July 2038 CLO Notes, Class A-1-R Senior Floating Rate Notes Radwell Parent, LLC Radwell Parent, LLC [Member] Radwell Parent, LLC Taymax Group, L.P., Taymax Group G.P., LLC, PF Salem Canada ULC and TCP Fit Parent, L.P. Taymax Group, L.P., Taymax Group G.P., LLC, PF Salem Canada ULC and TCP Fit Parent, L.P. [Member] Taymax Group, L.P., Taymax Group G.P., LLC, PF Salem Canada ULC and TCP Fit Parent, L.P. Clarion Home Services Group, LLC and LBC Breeze Holdings LLC Clarion Home Services Group, LLC and LBC Breeze Holdings LLC [Member] Clarion Home Services Group, LLC and LBC Breeze Holdings LLC Deferred tax liabilities Deferred Income Tax Liabilities, Net Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Edmunds Govtech, Inc Edmunds Govtech, Inc [Member] Edmunds Govtech, Inc Galaxy Buyer, Inc. and Galaxy Topco I, L.P. Galaxy Buyer, Inc. and Galaxy Topco I, L.P. [Member] Galaxy Buyer, Inc. and Galaxy Topco I, L.P. North Star Acquisitionco, LLC and Toucan Bidco Limited North Star Acquisitionco, LLC and Toucan Bidco Limited [Member] North Star Acquisitionco, LLC and Toucan Bidco Limited Cority Software Inc., Cority Software (USA) Inc., and Cority Parent, Inc. Cority Software Inc., Cority Software (USA) Inc., and Cority Parent, Inc. [Member] Cority Software Inc., Cority Software (USA) Inc., and Cority Parent, Inc. PosiGen, Inc. PosiGen, Inc. [Member] PosiGen, Inc. Cornerstone OnDemand, Inc. and Sunshine Software Holdings, Inc. Cornerstone OnDemand, Inc. and Sunshine Software Holdings, Inc. [Member] Cornerstone OnDemand, Inc. and Sunshine Software Holdings, Inc. Termination Date Trading Arrangement Termination Date Incentive Rate, Pre-Incentive Fee Net Investment Income Below Catch-Up Threshold Investment Advisory And Management Agreement - Incentive Rate, Pre-Incentive Fee Net Investment Income Below Catch-Up Threshold [Member] Investment Advisory And Management Agreement - Incentive Rate, Pre-Incentive Fee Net Investment Income Below Catch-Up Threshold Interest rate swap collateral payable Increase (Decrease) In Interest Rate Swap Collateral Payable Increase (Decrease) In Interest Rate Swap Collateral Payable Pharmaceuticals, Biotechnology and Life Sciences Pharmaceuticals, Biotechnology And Life Sciences [Member] Pharmaceuticals, Biotechnology And Life Sciences Subsequent Events [Abstract] Beacon Wellness Brands, Inc. and CDI Holdings I Corp. Beacon Wellness Brands, Inc. and CDI Holdings I Corp. [Member] Beacon Wellness Brands, Inc. and CDI Holdings I Corp. Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Income based fee and capital gains incentive fee Income Based Fees And Capital Gains Incentive Fees [Member] Income Based Fees And Capital Gains Incentive Fees Benecon Midco II LLC and Benecon Holdings, LLC Benecon Midco II LLC and Benecon Holdings, LLC [Member] Benecon Midco II LLC and Benecon Holdings, LLC Convey Health Solutions, Inc. Convey Health Solutions, Inc. [Member] Convey Health Solutions, Inc. Fair Value as of Grant Date Award Grant Date Fair Value VPP Intermediate Holdings, LLC and VPP Group Holdings, L.P. VPP Intermediate Holdings, LLC and VPP Group Holdings, L.P. [Member] VPP Intermediate Holdings, LLC and VPP Group Holdings, L.P. Net change in deferred tax liabilities Unrealized Gain (Loss), Investment and Derivative, Operating, Tax Expense (Benefit) Underwriting And Advisory Fees Received Underwriting And Advisory Fees Received [Member] Underwriting And Advisory Fees Received Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Stock available for repurchase under the stock repurchase program Share Repurchase Program, Remaining Authorized, Amount Implus Footcare, LLC Implus Footcare, LLC, Implus Holdings, LLC, and Implus Topco, LLC [Member] Implus Footcare, LLC, Implus Holdings, LLC, and Implus Topco, LLC Arrangement Duration Trading Arrangement Duration 15484880 Canada Inc. and 15484910 Canada Inc. 15484880 Canada Inc. and 15484910 Canada Inc. [Member] 15484880 Canada Inc. and 15484910 Canada Inc. Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Sales (cost) Investments In And Advances To Affiliates, At Fair Value, Gross Reductions, Sales Investments In And Advances To Affiliates, At Fair Value, Gross Reductions, Sales Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] TVG-MGT Upper Intermediate Holdings, LLC TVG-MGT Upper Intermediate Holdings, LLC [Member] TVG-MGT Upper Intermediate Holdings, LLC MC Accelerate Co-Invest Feeder LP and MC CIF Wealth Management (UK) Ltd MC Accelerate Co-Invest Feeder LP and MC CIF Wealth Management (UK) Ltd [Member] MC Accelerate Co-Invest Feeder LP and MC CIF Wealth Management (UK) Ltd Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount PIK interest income PIK interest Interest Income, Operating, Paid in Kind Open Forward Foreign Currency Contract [Table] Open Forward Foreign Currency Contract [Table] Paris US Holdco, Inc. & 1001028292 Ontario Inc. Paris US Holdco, Inc. & 1001028292 Ontario Inc. [Member] Paris US Holdco, Inc. & 1001028292 Ontario Inc. January 2038 CLO Notes January 2038 CLO Notes [Member] January 2038 CLO Notes Commercial and Professional Services Commercial And Professional Services [Member] Commercial And Professional Services Schedule of Fair Value Measurements of Cash and Cash Equivalents, Restricted Cash, Investments, Derivatives, and Unfunded Revolving and Delayed Draw Loan Commitments Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Quick Quack Car Wash Holdings, LLC and KKR Game Changer Co-Invest Feeder II L.P. Quick Quack Car Wash Holdings, LLC and KKR Game Changer Co-Invest Feeder II L.P. [Member] Quick Quack Car Wash Holdings, LLC and KKR Game Changer Co-Invest Feeder II L.P. All Award Types Award Type [Domain] ZBS Mechanical Group Co-Invest Fund 2, LLC and ZBS Mechanical Group Co-Invest II Fund 2, LLC ZBS Mechanical Group Co-Invest Fund 2, LLC and ZBS Mechanical Group Co-Invest II Fund 2, LLC [Member] ZBS Mechanical Group Co-Invest Fund 2, LLC and ZBS Mechanical Group Co-Invest II Fund 2, LLC NAS, LLC and Nationwide Marketing Group, LLC NAS, LLC and Nationwide Marketing Group, LLC [Member] NAS, LLC and Nationwide Marketing Group, LLC FAIR VALUE OF FINANCIAL INSTRUMENTS Fair Value Disclosures [Text Block] Gas Utilities Gas Utilities [Member] Gas Utilities Level 3 Fair Value, Inputs, Level 3 [Member] IQN Holding Corp. IQN Holding Corp. [Member] IQN Holding Corp. Geographical [Axis] Geographical [Axis] WebPT, Inc. and WPT Intermediate Holdco, Inc. WebPT, Inc. and WPT Intermediate Holdco, Inc. [Member] WebPT, Inc. and WPT Intermediate Holdco, Inc. ExtraHop Networks, Inc. ExtraHop Networks, Inc. [Member] ExtraHop Networks, Inc. Total commitments Total revolving loan commitments Total equity commitments Investment Company, Financial Support to Investee Contractually Required, Amount Restricted cash Restricted cash Restricted Cash Investments measured at net asset value Fair Value Measured at Net Asset Value Per Share [Member] Investment, Issuer Affiliation [Axis] Investment, Issuer Affiliation [Axis] Incentive Rate, Quarterly Hurdle Rate Investment Advisory And Management Agreement - Incentive Rate, Quarterly Hurdle Rate [Member] Investment Advisory And Management Agreement - Incentive Rate, Quarterly Hurdle Rate Concentration of Credit Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Infinity Home Services Holdco, Inc., D'Angelo & Sons Construction Limited and IHS Parent Holdings, L.P. Infinity Home Services Holdco, Inc., D'Angelo & Sons Construction Limited and IHS Parent Holdings, L.P. [Member] Infinity Home Services Holdco, Inc., D'Angelo & Sons Construction Limited and IHS Parent Holdings, L.P. Other assets Other Assets April 2036 Class A CLO Notes April 2036 Class A CLO Notes [Member] April 2036 Class A CLO Notes Legal Entity [Axis] Legal Entity [Axis] Stated interest expense Interest Expense, Debt West US West Region [Member] Payments of capital gains incentive fees Payments Of Capital Gains Incentive Fees Payments Of Capital Gains Incentive Fees Modernizing Medicine, Inc. and ModMed Software Midco Holdings, Inc. Modernizing Medicine, Inc. and ModMed Software Midco Holdings, Inc. [Member] Modernizing Medicine, Inc. and ModMed Software Midco Holdings, Inc. Align Precision Group, LLC and Align Precision Topco, L.P. Align Precision Group, LLC and Align Precision Topco, L.P. [Member] Align Precision Group, LLC and Align Precision Topco, L.P. Rialto Management Group, LLC Rialto Management Group, LLC [Member] Rialto Management Group, LLC AthenaHealth Group Inc., Minerva Holdco, Inc. and BCPE Co-Invest (A), LP AthenaHealth Group Inc., Minerva Holdco, Inc. and BCPE Co-Invest (A), LP [Member] AthenaHealth Group Inc., Minerva Holdco, Inc. and BCPE Co-Invest (A), LP Wealth Enhancement Group, LLC Wealth Enhancement Group, LLC [Member] Wealth Enhancement Group, LLC CASH, CASH EQUIVALENTS AND RESTRICTED CASH, BEGINNING OF PERIOD CASH, CASH EQUIVALENTS AND RESTRICTED CASH, END OF PERIOD Total cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Telle Tire & Auto Service, LLC, Telle Tire Holdco, LLC, and Next Horizon Capital TireCo SPV, LP Telle Tire & Auto Service, LLC, Telle Tire Holdco, LLC, and Next Horizon Capital TireCo SPV, LP [Member] Telle Tire & Auto Service, LLC, Telle Tire Holdco, LLC, and Next Horizon Capital TireCo SPV, LP Ratio/Supplemental Data: Investment Company, Ratio/Supplemental Data [Abstract] Investment Company, Ratio/Supplemental Data Firebird Acquisition Corp, Inc. Firebird Acquisition Corp, Inc. [Member] Firebird Acquisition Corp, Inc. Non-NEOs Non-NEOs [Member] Data Centers Data Centers [Member] Data Centers DIVIDENDS AND DISTRIBUTIONS Dividends And Distributions [Text Block] Dividends And Distributions Text block Independent Power and Renewable Electricity Producers Independent Power And Renewable Electricity Producers [Member] Independent Power And Renewable Electricity Producers Shout! Factory, LLC Shout! Factory, LLC [Member] Shout! Factory, LLC Number of borrowers Number of borrowers in the SDLP Investment Company, Number of Borrowers Investment Company, Number of Borrowers Alcami Corporation and ACM Note Holdings, LLC Alcami Corporation And ACM Note Holdings, LLC [Member] Alcami Corporation And ACM Note Holdings, LLC Letter of Credit Facility Letter Of Credit Facility [Member] Letter Of Credit Facility Bayou Intermediate II, LLC, Bayou Intermediate II, LLC, [Member] Bayou Intermediate II, LLC, Long-Term Debt, Type [Domain] Long-Term Debt, Type [Domain] Nomi Health, Inc. Nomi Health, Inc. [Member] Nomi Health, Inc. Metatiedot Bidco OY and Metatiedot US, LLC Metatiedot Bidco OY and Metatiedot US, LLC [Member] Metatiedot Bidco OY and Metatiedot US, LLC GHX Ultimate Parent Corporation, Commerce Parent, Inc. and Commerce Topco, LLC GHX Ultimate Parent Corporation, Commerce Parent, Inc. and Commerce Topco, LLC [Member] GHX Ultimate Parent Corporation, Commerce Parent, Inc. and Commerce Topco, LLC RMS Holdco II, LLC & RMS Group Holdings, Inc. RMS Holdco II, LLC & RMS Group Holdings, Inc. [Member] RMS Holdco II, LLC & RMS Group Holdings, Inc. Statistical Measurement [Axis] Statistical Measurement [Axis] The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC [Member] The Mather Group, LLC, TVG-TMG Topco, Inc., and TVG-TMG Holdings, LLC Base management fee rate Management and Service Fees, Base Rate Schedule of Net Realized and Unrealized Gains (Losses) on Derivative Instruments Derivative Instruments, Gain (Loss) [Table Text Block] Award Type Award Type [Axis] Perigon Wealth Management, LLC, Perigon Wealth Advisors Holdings Company, LLC and CWC Fund I Co-Invest (Prism) LP Perigon Wealth Management, LLC, Perigon Wealth Advisors Holdings Company, LLC and CWC Fund I Co-Invest (Prism) LP [Member] Perigon Wealth Management, LLC, Perigon Wealth Advisors Holdings Company, LLC and CWC Fund I Co-Invest (Prism) LP Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Berner Food & Beverage, LLC Berner Food & Beverage, LLC [Member] Berner Food & Beverage, LLC Net unrealized gain (loss) for federal tax purposes Unrealized depreciation Investment, Tax Basis, Unrealized Gain (Loss) Accumulated undistributed earnings Accumulated earnings Retained Earnings (Accumulated Deficit) Northeast US Northeast Region [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock Common Stock [Member] Interest and facility fees payable Interest And Facility Fees Payable Interest And Facility Fees Payable Mr. Greens Intermediate, LLC, Florida Veg Investments LLC, MRG Texas, LLC and Restaurant Produce and Services Blocker, LLC Mr. Greens Intermediate, LLC, Florida Veg Investments LLC, MRG Texas, LLC and Restaurant Produce and Services Blocker, LLC [Member] Mr. Greens Intermediate, LLC, Florida Veg Investments LLC, MRG Texas, LLC and Restaurant Produce and Services Blocker, LLC International Non-US [Member] Non-controlling interests in Consolidated IHAM Vehicles Members' Equity Attributable to Noncontrolling Interest Foreign currency forward contract, GBP 1 Foreign currency forward contract, GBP 1 [Member] Foreign currency forward contract, GBP 1 Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Derivative Contract [Domain] Derivative Contract [Domain] PIK interest and dividends Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, PIK Interest And Dividends Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, PIK Interest And Dividends Total liabilities and stockholders’ equity Liabilities and Equity Proofpoint, Inc. Proofpoint, Inc. [Member] Proofpoint, Inc. Employee Stock Option Share-Based Payment Arrangement, Option [Member] Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Income based fee payable Incentive Fee Payable, Income-Based Global Music Rights, LLC Global Music Rights, LLC [Member] Global Music Rights, LLC Segments [Axis] Segments [Axis] Household and Personal Products Household And Personal Products [Member] Household And Personal Products Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Schedule of Interest Rate Swap Derivative Instruments Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Related Party [Domain] Related and Nonrelated Parties [Domain] Tabular List, Table Tabular List [Table Text Block] TCI Buyer LLC and TCI Holdings, LP TCI Buyer LLC and TCI Holdings, LP [Member] TCI Buyer LLC and TCI Holdings, LP Adonis Bidco Inc. Adonis Bidco Inc. [Member] Adonis Bidco Inc. Name Awards Close in Time to MNPI Disclosures, Individual Name Average outstanding balance Line of Credit Facility, Average Outstanding Amount Investment, Identifier [Axis] Investment, Identifier [Axis] AGREEMENTS Investment Company, Agreements [Text Block] Investment Company, Agreements 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] Frontline Road Safety Operations, LLC Frontline Road Safety Operations, LLC [Member] Frontline Road Safety Operations, LLC MSIS Holdings, Inc. and MS Precision Parent, LP, MSIS Holdings, Inc. and MS Precision Parent, LP, [Member] MSIS Holdings, Inc. and MS Precision Parent, LP, EV market multiple analysis Valuation, Market Approach [Member] Average Offering Price Per Share (in dollars per share) Sale of Stock, Price Per Share Investments Activity And Fair Value Table [Abstract] Investments Activity And Fair Value Table [Abstract] Investments Activity And Fair Value Table Adjustment to Compensation: Adjustment to Compensation [Axis] RB Holdings InterCo, LLC RB Holdings InterCo, LLC [Member] RB Holdings InterCo, LLC CST Holding Company CST Holding Company [Member] CST Holding Company Dividends Payable [Line Items] Dividends Payable [Line Items] Dividends Payable [Table] Dividends Payable [Table] Second lien senior secured loans Debt Securities, Second Lien Senior Secured Loans [Member] Debt Securities, Second Lien Senior Secured Loans January 2031 Notes January 2031 Notes (principal amount outstanding of $650) January 2031 Notes [Member] January 2031 Notes Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Interest paid during the period Cash paid for interest expense Interest Paid, Excluding Capitalized Interest, Operating Activity Phoenix Operating LLC Phoenix Operating LLC [Member] Phoenix Operating LLC Hedging Designation [Axis] Hedging Designation [Axis] Termination notice period Investment Company, Agreement, Termination Notice Period Investment Company, Agreement, Termination Notice Period Manna Pro Products, LLC and MP Blocker A LLC Manna Pro Products, LLC and MP Blocker A LLC [Member] Manna Pro Products, LLC and MP Blocker A LLC Absolute Dental Group LLC and Absolute Dental Equity, LLC Absolute Dental Group LLC and Absolute Dental Equity, LLC [Member] Absolute Dental Group LLC and Absolute Dental Equity, LLC Credit Facility [Axis] Credit Facility [Axis] Capital Goods Capital Goods [Member] Capital Goods Pyramid-BMC IntermediateCo I, LLC and Pyramid Investors, LLC Pyramid-BMC IntermediateCo I, LLC and Pyramid Investors, LLC [Member] Pyramid-BMC IntermediateCo I, LLC and Pyramid Investors, LLC Name Measure Name June 2027 Notes June 2027 Notes (principal amount outstanding of $500) June 2027 Notes [Member] June 2027 Notes Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Debt Instrument [Line Items] Debt Instrument [Line Items] Senior Direct Lending Program, LLC Senior Direct Lending Program, LLC [Member] Senior Direct Lending Program, LLC St Athena Global LLC and St Athena Global Holdings Limited St Athena Global LLC and St Athena Global Holdings Limited [Member] St Athena Global LLC and St Athena Global Holdings Limited Miami Beckham United LLC Miami Beckham United LLC [Member] Miami Beckham United LLC Capital in Excess of Par Value Additional Paid-in Capital [Member] Sugar PPC Buyer LLC Sugar PPC Buyer LLC [Member] Sugar PPC Buyer LLC Commitment to fund Investment Company, Committed Capital Insurance Insurance Sector [Member] Collections of PIK dividends Dividends, Paid-in-kind Net gain on interest rate swaps accounted for as hedge instruments and the related hedged items Interest Expense, Gain (Loss), Hedging Instruments Interest Expense, Gain (Loss), Hedging Instruments Interest receivable Interest Receivable Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent People Corporation People Corporation [Member] People Corporation DTI Holdco, Inc. and OPE DTI Holdings, Inc. DTI Holdco, Inc. and OPE DTI Holdings, Inc. [Member] DTI Holdco, Inc. and OPE DTI Holdings, Inc. Company Selected Measure Amount Company Selected Measure Amount Churchill OpCo Holdings LLC and Victory Topco, LP Churchill OpCo Holdings LLC and Victory Topco, LP [Member] Churchill OpCo Holdings LLC and Victory Topco, LP Aptean, Inc. and Aptean Acquiror Inc Aptean, Inc. and Aptean Acquiror Inc [Member] Aptean, Inc. and Aptean Acquiror Inc Axiomatic, LLC Axiomatic, LLC [Member] Axiomatic, LLC Royal Borrower, LLC and Royal Parent, LP Royal Borrower, LLC and Royal Parent, LP [Member] Royal Borrower, LLC and Royal Parent, LP Equinox Holdings, Inc. Equinox Holdings, Inc. [Member] Equinox Holdings, Inc. GI Ranger Intermediate LLC GI Ranger Intermediate LLC [Member] GI Ranger Intermediate LLC Harvey Tool Company, LLC Harvey Tool Company, LLC [Member] Harvey Tool Company, LLC Repairify, Inc. and Repairify Holdings, LLC Repairify, Inc. and Repairify Holdings, LLC [Member] Repairify, Inc. and Repairify Holdings, LLC Non-PEO NEO Non-PEO NEO [Member] HuFriedy Group Acquisition LLC HuFriedy Group Acquisition LLC [Member] HuFriedy Group Acquisition LLC Subsidiary, Sale of Stock [Line Items] Subsidiary, Sale of Stock [Line Items] Income tax expense, including excise taxes Investment Income, Operating, Tax Expense (Benefit) Customer Concentration Risk Customer Concentration Risk [Member] Award Timing Method Award Timing Method [Text Block] Constellation Wealth Capital Fund, L.P., Constellation Wealth Capital Fund II LP, And CWC Fund II GP Capital LP Constellation Wealth Capital Fund, L.P., Constellation Wealth Capital Fund II LP, And CWC Fund II GP Capital LP [Member] Constellation Wealth Capital Fund, L.P., Constellation Wealth Capital Fund II LP, And CWC Fund II GP Capital LP CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Tax reclassification of stockholders’ equity in accordance with GAAP Investment Company, Tax Reclassification, Increase (Decrease) Contributed capital Members' Capital DOXA Insurance Holdings LLC and Rocket Co-Invest, SLP DOXA Insurance Holdings LLC and Rocket Co-Invest, SLP [Member] DOXA Insurance Holdings LLC and Rocket Co-Invest, SLP Notional Amount to be Purchased Derivative Liability, Notional Amount NET INCREASE IN STOCKHOLDERS’ EQUITY RESULTING FROM OPERATIONS Net increase in stockholders’ equity resulting from operations Net increase in stockholders’ equity resulting from operations Net Income (Loss) Attributable to Parent Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Non-qualifying assets Non-Qualifying Assets [Member] Non-Qualifying Assets Worldwide Produce Acquisition, LLC and REP WWP Coinvest IV, L.P. Worldwide Produce Acquisition, LLC and REP WWP Coinvest IV, L.P. [Member] Worldwide Produce Acquisition, LLC and REP WWP Coinvest IV, L.P. Balance Sheet Location [Axis] Location, Statement of Financial Position, Balance [Axis] YE Brands Holdings, LLC YE Brands Holdings, LLC [Member] YE Brands Holdings, LLC Restatement Determination Date: Restatement Determination Date [Axis] PCMI Parent, LLC and PCMI Ultimate Holdings, LP PCMI Parent, LLC and PCMI Ultimate Holdings, LP [Member] PCMI Parent, LLC and PCMI Ultimate Holdings, LP U.S. Anesthesia Partners, Inc. & U.S. Anesthesia Partners Holdings, Inc. U.S. Anesthesia Partners, Inc. & U.S. Anesthesia Partners Holdings, Inc. [Member] U.S. Anesthesia Partners, Inc. & U.S. Anesthesia Partners Holdings, Inc. Subordinated note from ARCC Subordinated Debt, Related Party Subordinated Debt, Related Party American Seafoods Group LLC and American Seafoods Partners LLC American Seafoods Group LLC and American Seafoods Partners LLC [Member] American Seafoods Group LLC and American Seafoods Partners LLC ISQ Hawkeye Holdco, Inc. and ISQ Hawkeye Holdings, LLC ISQ Hawkeye Holdco, Inc. and ISQ Hawkeye Holdings, L.P. [Member] ISQ Hawkeye Holdco, Inc. and ISQ Hawkeye Holdings, LLC Southeast US Southeast Region [Member] FTAI Infrastructure Inc. and FIP RR Holdings LLC FTAI Infrastructure Inc. and FIP RR Holdings LLC [Member] FTAI Infrastructure Inc. and FIP RR Holdings LLC Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Revenues Revenues [Abstract] Accommodations Plus Technologies LLC Accommodations Plus Technologies LLC [Member] Accommodations Plus Technologies LLC Revolving and delayed draw loan commitments Revolving and Delayed Draw Loan Commitments [Member] Revolving and Delayed Draw Loan Commitments Advarra Holdings, Inc. Advarra Holdings, Inc. [Member] Advarra Holdings, Inc. Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Financial Support to Nonconsolidated Legal Entity [Domain] Financial Support to Nonconsolidated Legal Entity [Domain] Statistical Measurement [Domain] Statistical Measurement [Domain] Precision Concepts International LLC and Precision Concepts Canada Corporation Precision Concepts Parent Inc., Precision Concepts International LLC, and Precision Concepts Canada Corporation [Member] Precision Concepts Parent Inc., Precision Concepts International LLC, and Precision Concepts Canada Corporation Document Fiscal Year Focus Document Fiscal Year Focus PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC [Member] PDI TA Holdings, Inc., Peachtree Parent, Inc. and Insight PDI Holdings, LLC Industry Concentration Risk Industry Concentration Risk [Member] Industry Concentration Risk Heavy Construction Systems Specialists, LLC Heavy Construction Systems Specialists, LLC [Member] Heavy Construction Systems Specialists, LLC Aldinger Company Inc Aldinger Company Inc [Member] Aldinger Company Inc Tempus Labs, Inc. Tempus Labs, Inc. [Member] Tempus Labs, Inc. Common stock, par value $0.001 per share, 1,000 common shares authorized; 718 common shares issued and outstanding Common Stock, Value, Issued Interest and credit facility fees Interest expense Total interest and credit facility fees expense Interest Expense, Operating and Nonoperating Schedule of Long-term Debt Schedule of Long-Term Debt Instruments [Table Text Block] Automotive Keys Group, LLC and Automotive Keys Investor, LLC Automotive Keys Group, LLC and Automotive Keys Investor, LLC [Member] Automotive Keys Group, LLC and Automotive Keys Investor, LLC Line of Credit Line of Credit [Member] Restatement Determination Date Restatement Determination Date Net income tax expense on net realized gains Realized Gain (Loss), Investment and Derivative, Operating, Tax Expense (Benefit) Mari Events Midco LLC and AE EventsCo Holdings LLC Mari Events Midco LLC and AE EventsCo Holdings LLC [Member] Mari Events Midco LLC and AE EventsCo Holdings LLC Excel Fitness Consolidator LLC, Health Buyer LLC and Excel Fitness Holdings, Inc. Excel Fitness Consolidator LLC, Health Buyer LLC and Excel Fitness Holdings, Inc. [Member] Excel Fitness Consolidator LLC, Health Buyer LLC and Excel Fitness Holdings, Inc. Gula Buyer Inc. and Gula Co-Invest II, L.P. Gula Buyer Inc. and Gula Co-Invest II, L.P. [Member] Gula Buyer Inc. and Gula Co-Invest II, L.P. LifeStyles Bidco Ltd., Lifestyles US Holdco, Inc. and LifeStyles Parent, L.P. LifeStyles Bidco Ltd., Lifestyles US Holdco, Inc. and LifeStyles Parent, L.P. [Member] LifeStyles Bidco Ltd., Lifestyles US Holdco, Inc. and LifeStyles Parent, L.P. Non-controlled/non-affiliate company investments Investment, Unaffiliated Issuer [Member] Bobtail AcquisitionCo, LLC Bobtail AcquisitionCo, LLC [Member] Bobtail AcquisitionCo, LLC Real Estate Management and Development. Real Estate Management and Development. [Member] Real Estate Management and Development. U.S. Urology Partners, LLC, General Atlantic (USU) Blocker Collection Holdco, L.P., and General Atlantic (USU-2) Coinvest, L.P. U.S. Urology Partners, LLC, General Atlantic (USU) Blocker Collection Holdco, L.P., and General Atlantic (USU-2) Coinvest, L.P. [Member] U.S. Urology Partners, LLC, General Atlantic (USU) Blocker Collection Holdco, L.P., and General Atlantic (USU-2) Coinvest, L.P. Incentive Rate, Pre-Incentive Fee Net Investment Income Exceeds Catch-Up Threshold Investment Advisory And Management Agreement - Incentive Rate, Pre-Incentive Fee Net Investment Income Exceeds Catch-Up Threshold [Member] Investment Advisory And Management Agreement - Incentive Rate, Pre-Incentive Fee Net Investment Income Exceeds Catch-Up Threshold Schedule of Selected Financial Information Condensed Financial Statements [Table Text Block] UP Intermediate II LLC and UPBW Blocker LLC UP Intermediate II LLC and UPBW Blocker LLC [Member] UP Intermediate II LLC and UPBW Blocker LLC Amendment Flag Amendment Flag Shur-Co Acquisition, Inc. and Shur-Co HoldCo, Inc. Shur-Co Acquisition, Inc. and Shur-Co HoldCo, Inc. [Member] Shur-Co Acquisition, Inc. and Shur-Co HoldCo, Inc. Accounts payable and other liabilities Increase (Decrease) in Accounts Payable and Other Operating Liabilities AeriTek Global US Acquisition Inc., AeriTek Global Holdings LLC, and Minus Forty QBD Corp AeriTek Global US Acquisition Inc., AeriTek Global Holdings LLC, and Minus Forty QBD Corp [Member] AeriTek Global US Acquisition Inc., AeriTek Global Holdings LLC, and Minus Forty QBD Corp NET INVESTMENT INCOME BEFORE INCOME TAXES Net Investment Income Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC [Member] Olympia Acquisition, Inc., Olympia TopCo, L.P., and Asclepius Holdings LLC Signant Finance One Limited and Bracket Intermediate Holding Corp. Signant Finance One Limited and Bracket Intermediate Holding Corp. [Member] Signant Finance One Limited and Bracket Intermediate Holding Corp. Investments [Domain] Investments [Domain] Birdie Bidco, Inc. Birdie Bidco, Inc. [Member] Birdie Bidco, Inc. Base management fee payable Increase (Decrease) in Management Fee Payable Nordic Ferry Infrastructure AS Nordic Ferry Infrastructure AS [Member] Nordic Ferry Infrastructure AS PCS MidCo, Inc. and PCS Parent, L.P. PCS MidCo, Inc. and PCS Parent, L.P. [Member] PCS MidCo, Inc. and PCS Parent, L.P. Endurance PT Technology Buyer Corporation and Endurance PT Technology Holdings LLC Endurance PT Technology Buyer Corporation and Endurance PT Technology Holdings LLC [Member] Endurance PT Technology Buyer Corporation and Endurance PT Technology Holdings LLC Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Transfers into Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 Entity Address, State or Province Entity Address, State or Province PEO Total Compensation Amount PEO Total Compensation Amount Notional Amount Notional Amount Derivative, Notional Amount Basic weighted average shares of common stock outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic DRS Holdings III, Inc. and DRS Holdings I, Inc. DRS Holdings III, Inc. and DRS Holdings I, Inc. [Member] DRS Holdings III, Inc. and DRS Holdings I, Inc. SelectQuote, Inc. and SQ ABS Issuer, LLC SelectQuote, Inc. and SQ ABS Issuer, LLC [Member] SelectQuote, Inc. and SQ ABS Issuer, LLC Schedule of Investments [Abstract] Schedule of Investments [Abstract] Expereo USA, Inc. and Ristretto Bidco B.V. Expereo USA, Inc. and Ristretto Bidco B.V. [Member] Expereo USA, Inc. and Ristretto Bidco B.V. Foreign currency forward contract, EUR 2 Foreign currency forward contract, EUR 2 [Member] Foreign currency forward contract, EUR 2 MRI Software LLC MRI Software LLC [Member] MRI Software LLC Investments at fair value Investments [Abstract] Arrowhead Holdco Company and Arrowhead GS Holdings, Inc. Arrowhead Holdco Company and Arrowhead GS Holdings, Inc. [Member] Arrowhead Holdco Company and Arrowhead GS Holdings, Inc. January 2038 Class A-2 CLO Notes January 2038 Class A-2 CLO Notes [Member] January 2038 Class A-2 CLO Notes Guidepoint Security Holdings, LLC Guidepoint Security Holdings, LLC [Member] Guidepoint Security Holdings, LLC Interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC [Member] Essential Services Holding Corporation and OMERS Mahomes Investment Holdings LLC January 2038 Class A-1 CLO Notes January 2038 Class A-1 CLO Notes [Member] January 2038 Class A-1 CLO Notes VPROP Operating, LLC and V SandCo, LLC VPROP Operating, LLC and V SandCo, LLC [Member] VPROP Operating, LLC and V SandCo, LLC SOC Telemed, Inc. and PSC Spark Holdings, LP SOC Telemed, Inc. and PSC Spark Holdings, LP [Member] SOC Telemed, Inc. and PSC Spark Holdings, LP Meyer Laboratory, LLC and Meyer Parent, LLC Meyer Laboratory, LLC and Meyer Parent, LLC [Member] Meyer Laboratory, LLC and Meyer Parent, LLC Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Class of Stock [Axis] Class of Stock [Axis] NAMSA Holdco, LLC, North American Science Associates, LLC and Cardinal Topco Holdings L.P. NAMSA Holdco, LLC, North American Science Associates, LLC and Cardinal Topco Holdings L.P. [Member] NAMSA Holdco, LLC, North American Science Associates, LLC and Cardinal Topco Holdings L.P. Endeavor Bidco LLC and Endeavor TopCo, Inc. Endeavor Bidco LLC and Endeavor TopCo, Inc. [Member] Endeavor Bidco LLC and Endeavor TopCo, Inc. Shares issued in connection with dividend reinvestment plan Stock Issued During Period, Value, Dividend Reinvestment Plan Client of Varagon Client Of Varagon [Member] Client Of Varagon EP Purchaser, LLC and TPG VIII EP Co-Invest II, L.P. EP Purchaser, LLC and TPG VIII EP Co-Invest II, L.P. [Member] EP Purchaser, LLC and TPG VIII EP Co-Invest II, L.P. Aggregate principal amount committed Total Aggregate Principal Amount Committed Line of Credit Facility, Maximum Borrowing Capacity Rodeo AcquisitionCo LLC Rodeo AcquisitionCo LLC [Member] Rodeo AcquisitionCo LLC “At the market” offerings At the Market Offerings [Member] At the Market Offerings Member INVESTMENTS Schedule of Investments [Text Block] The Arcticom Group, LLC and AMCP Mechanical Holdings, LP The Arcticom Group, LLC and AMCP Mechanical Holdings, LP [Member] The Arcticom Group, LLC and AMCP Mechanical Holdings, LP Flint OpCo, LLC Flint OpCo, LLC [Member] Flint OpCo, LLC Create Music Holdings, LLC Create Music Holdings, LLC [Member] Create Music Holdings, LLC Subsidiary or Equity Method Investee, Sale of Stock by Subsidiary or Equity Investee [Table] Subsidiary or Equity Method Investee, Sale of Stock, Type [Table] Investment Advisory and Management Agreement Investment Advisory And Management Agreement [Member] Investment Advisory And Management Agreement Total expenses Investment Income, Investment Expense Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Amortization of debt issuance costs Amortization of Debt Issuance Costs Letters of credit outstanding, amount, year one Letters Of Credit Outstanding, Amount, Year One Letters Of Credit Outstanding, Amount, Year One Laboratories Bidco LLC and Laboratories Topco LLC Laboratories Bidco LLC and Laboratories Topco LLC [Member] Laboratories Bidco LLC and Laboratories Topco LLC Eclipse Topco, Inc., Eclipse Investor Parent, L.P. and Eclipse Buyer, Inc. Eclipse Topco, Inc., Eclipse Investor Parent, L.P. and Eclipse Buyer, Inc. [Member] Eclipse Topco, Inc., Eclipse Investor Parent, L.P. and Eclipse Buyer, Inc. Total net unfunded revolving and delayed draw loan commitments Investment Company, Net Adjusted Unfunded Commitments, Including Rounding Adjustments Investment Company, Net Adjusted Unfunded Commitments, Including Rounding Adjustments Shares issued in connection with dividend reinvestment plan (in shares) Shares issued (in shares) Stock Issued During Period, Shares, Dividend Reinvestment Plan Debt Carrying Value Long-Term Debt Other equity Other equity Other Security Investments [Member] Changes in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Foreign currency forward contract, NOK Foreign currency forward contract, NOK [Member] Foreign currency forward contract, NOK ZocDoc, Inc ZocDoc, Inc [Member] ZocDoc, Inc Spindrift Beverage Co., Inc. and SBC Aggregator LP Spindrift Beverage Co., Inc. and SBC Aggregator LP [Member] Spindrift Beverage Co., Inc. and SBC Aggregator LP STOCKHOLDERS’ EQUITY Equity [Text Block] Expenses Costs and Expenses [Abstract] Security Exchange Name Security Exchange Name Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] eCapital Finance Corp. eCapital Finance Corp. [Member] eCapital Finance Corp. Cards-Live Oak Holdings, Inc. Cards-Live Oak Holdings, Inc. [Member] Cards-Live Oak Holdings, Inc. Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc. Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc. [Member] Cobalt Buyer Sub, Inc., Cobalt Holdings I, LP, and Cobalt Intermediate I, Inc. Generator US Buyer, Inc. and Total Power Limited Generator US Buyer, Inc. and Total Power Limited [Member] Generator US Buyer, Inc. and Total Power Limited SGM Acquisition Sub, LLC and Schill Holdings, LP SGM Acquisition Sub, LLC and Schill Holdings, LP [Member] SGM Acquisition Sub, LLC and Schill Holdings, LP PSC Parent, Inc. PSC Parent, Inc. [Member] PSC Parent, Inc. Segment Reporting Segment Reporting, Policy [Policy Text Block] Interest rate swap 5 Interest Rate Swap 5 [Member] Interest Rate Swap 5 LJP Purchaser, Inc. and LJP Topco, LP LJP Purchaser, Inc. and LJP Topco, LP [Member] LJP Purchaser, Inc. and LJP Topco, LP Name Outstanding Recovery, Individual Name eResearch Technology, Inc. and Astorg VII Co-Invest ERT eResearch Technology, Inc. and Astorg VII Co-Invest ERT [Member] eResearch Technology, Inc. and Astorg VII Co-Invest ERT Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Foundation Risk Partners, Corp. Foundation Risk Partners, Corp. [Member] Foundation Risk Partners, Corp. Shares (as a percent) Investment Owned, Balance, Percent Of Shares Investment Owned, Balance, Percent Of Shares Geographical [Domain] Geographical [Domain] Schedule of Dividend and Interest Income Interest Income and Interest Expense Disclosure [Table Text Block] 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] LJ Perimeter Buyer, Inc. and LJ Perimeter Co-Invest, L.P. LJ Perimeter Buyer, Inc. and LJ Perimeter Co-Invest, L.P. [Member] LJ Perimeter Buyer, Inc. and LJ Perimeter Co-Invest, L.P. Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Schedule of Investments [Table] Schedule of Investments [Table] Schedule of Base Management Fees, Income Based Fees, and Capital Gains Incentive Fees Investment Company, Management Fees And Incentive Fees [Table Text Block] Investment Company, Management Fees And Incentive Fees Diligent Corporation and Diligent Preferred Issuer, Inc. Diligent Corporation and Diligent Preferred Issuer, Inc. [Member] Diligent Corporation and Diligent Preferred Issuer, Inc. Unrealized losses Unrealized losses Investment, Tax Basis, Unrealized Loss NCP-MSI Buyer, Inc. and NCP MSI Co-Invest, LP NCP-MSI Buyer, Inc. and NCP MSI Co-Invest, LP [Member] NCP-MSI Buyer, Inc. and NCP MSI Co-Invest, LP JAMS Holdings LP and Jams Buyer LLC JAMS Holdings LP and Jams Buyer LLC [Member] JAMS Holdings LP and Jams Buyer LLC Net gain on interest rate swaps accounted for as hedge instruments and the related hedged items Net unrealized gains (losses) from foreign currency and other transactions Unrealized Gain (Loss) on Derivatives Triple JJJ Lube, Corp. and TCC Buyer Holdco, LLC Triple JJJ Lube, Corp. and TCC Buyer Holdco, LLC [Member] Triple JJJ Lube, Corp. and TCC Buyer Holdco, LLC Zeppelin US Buyer Inc. and Providence Equity Partners IX-C L.P. Zeppelin US Buyer Inc. and Providence Equity Partners IX-C L.P. [Member] Zeppelin US Buyer Inc. and Providence Equity Partners IX-C L.P. Principal amount of debt outstanding Principal Amount Outstanding Long-Term Debt, Gross Artivion, Inc Artivion, Inc [Member] Artivion, Inc Ministry Brands Holdings, LLC and RCP MB Investments B, L.P. Ministry Brands Holdings, LLC and RCP MB Investments B, L.P. [Member] Ministry Brands Holdings, LLC and RCP MB Investments B, L.P. Netsmart, Inc. and Netsmart Technologies, Inc. Netsmart, Inc. and Netsmart Technologies, Inc. [Member] Netsmart, Inc. and Netsmart Technologies, Inc. Related Party Transactions [Abstract] Debt Issuance Costs Debt, Policy [Policy Text Block] Continental Acquisition Holdings, Inc. and Continental Group Holdings, L.P. Continental Acquisition Holdings, Inc. and Continental Group Holdings, L.P. [Member] Continental Acquisition Holdings, Inc. and Continental Group Holdings, L.P. ID.me, LLC and ID.me, Inc. ID.me, LLC and ID.me, Inc. [Member] ID.me, LLC and ID.me, Inc. Compensation Amount Outstanding Recovery Compensation Amount Mimecast Borrowerco, Inc. and Magnesium Co-Invest SCSp Mimecast Borrowerco, Inc. and Magnesium Co-Invest SCSp [Member] Mimecast Borrowerco, Inc. and Magnesium Co-Invest SCSp Individual: Individual [Axis] Diluted weighted average shares of common stock outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Elliott Davis Advisory, LLC and Elliott Davis Advisory HoldCo, LLC Elliott Davis Advisory, LLC and Elliott Davis Advisory HoldCo, LLC [Member] Elliott Davis Advisory, LLC and Elliott Davis Advisory HoldCo, LLC Entity Emerging Growth Company Entity Emerging Growth Company Related Party Transaction [Line Items] Related Party Transaction [Line Items] Derivative Instruments Derivatives, Policy [Policy Text Block] Demakes FinanceCo, LLC Demakes FinanceCo, LLC [Member] Demakes FinanceCo, LLC Underlying Security Market Price Change Underlying Security Market Price Change, Percent Sport Maska Inc Sport Maska Inc [Member] Sport Maska Inc Commercial Paper Commercial Paper [Member] DERIVATIVE INSTRUMENTS Derivative Instruments and Hedging Activities Disclosure [Text Block] 3 Step Sports LLC 3 Step Sports LLC [Member] 3 Step Sports LLC Jones Fish Hatcheries & Distributors, LLC and Pond Management Group Holdings, LLC Jones Fish Hatcheries & Distributors, LLC and Pond Management Group Holdings, LLC [Member] Jones Fish Hatcheries & Distributors, LLC and Pond Management Group Holdings, LLC FS Squared Holding Corp. and FS Squared, LLC FS Squared Holding Corp. and FS Squared, LLC [Member] FS Squared Holding Corp. and FS Squared, LLC Huskies Parent, Inc., GI Insurity Parent LLC, and GI Insurity Topco LP Huskies Parent, Inc., GI Insurity Parent LLC, and GI Insurity Topco LP [Member] Huskies Parent, Inc., GI Insurity Parent LLC, and GI Insurity Topco LP Change in Unrealized Appreciation / (Depreciation) Gross Amount of Recognized Liabilities Derivative Liability, Subject to Master Netting Arrangement, before Offset Professional Fighters League, LLC and PFL MMA, Inc. Professional Fighters League, LLC And PFL MMA, Inc. [Member] Professional Fighters League, LLC And PFL MMA, Inc. Letters of credit outstanding, amount Letters of Credit Outstanding, Amount Two Six Labs, LLC Two Six Labs, LLC [Member] Two Six Labs, LLC Evolent Health LLC and Evolent Health, Inc. Evolent Health LLC and Evolent Health, Inc. [Member] Evolent Health LLC and Evolent Health, Inc. W.S. Connelly & Co., LLC and WSC Ultimate Holdings, LLC W.S. Connelly & Co., LLC and WSC Ultimate Holdings, LLC [Member] W.S. Connelly & Co., LLC and WSC Ultimate Holdings, LLC BCC Blueprint Holdings I, LLC and BCC Blueprint Investments, LLC BCC Blueprint Holdings I, LLC and BCC Blueprint Investments, LLC [Member] BCC Blueprint Holdings I, LLC and BCC Blueprint Investments, LLC Organization, Consolidation and Presentation of Financial Statements [Abstract] Wellington-Altus Financial Inc. Wellington-Altus Financial Inc. [Member] Wellington-Altus Financial Inc. Grit Buyer, Inc. and Integrum Grit Co-Invest LP Grit Buyer, Inc. and Integrum Grit Co-Invest LP [Member] Grit Buyer, Inc. and Integrum Grit Co-Invest LP Galway Borrower LLC Galway Borrower LLC [Member] Galway Borrower LLC Notional Amount to be sold Derivative Asset, Notional Amount Schedule of Funded Capital and Unfunded Capital Commitments of the SDLP Other Commitments [Table Text Block] Investment Company, Financial Highlights [Line Items] Investment Company, Financial Highlights [Line Items] Creek Parent, Inc. and Creek Feeder, L.P. Creek Parent, Inc. and Creek Feeder, L.P. [Member] Creek Parent, Inc. and Creek Feeder, L.P. Ratio of net investment income to average net assets Investment Company, Investment Income (Loss) Ratio Income based fee Income based fee Incentive Fee Expense, Income-Based July 2026 Notes July 2026 Notes (principal amount outstanding of $1,000) July 2026 Notes [Member] July 2026 Notes All Executive Categories All Executive Categories [Member] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Drogon Bidco Inc. & Drogon Aggregator LP Drogon Bidco Inc. & Drogon Aggregator LP [Member] Drogon Bidco Inc. & Drogon Aggregator LP KNPC HoldCo, LLC KNPC HoldCo, LLC [Member] KNPC HoldCo, LLC Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Credit facility fees Line of Credit Facility, Commitment Fee Amount Asset coverage requirement applicable to senior securities Investment Company, Senior Security, Indebtedness, Asset Coverage Ratio Novipax Buyer, L.L.C. and Novipax Parent Holding Company, L.L.C. Novipax Buyer, L.L.C. and Novipax Parent Holding Company, L.L.C. [Member] Novipax Buyer, L.L.C. and Novipax Parent Holding Company, L.L.C. Repayments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Dividends to Common Stockholders Investment Company, Distribution [Policy Text Block] Schedule of Computations of Basic and Diluted Net Increase in Stockholders' Equity Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Production Resource Group, L.L.C. and PRG III, LLC Production Resource Group, L.L.C. And PRG III, LLC [Member] Production Resource Group, L.L.C. and PRG III, LLC Debt Disclosure [Abstract] Investment Company, Nonconsolidated Subsidiary [Domain] Investment Company, Nonconsolidated Subsidiary [Domain] SEGMENT REPORTING Segment Reporting [Text Block] Clearstead Advisors, LLC Clearstead Advisors, LLC [Member] Clearstead Advisors, LLC Minimum Minimum [Member] Unifi Aviation North America LLC and Unifi Aviation Canada, Inc. Unifi Aviation North America LLC and Unifi Aviation Canada, Inc. [Member] Unifi Aviation North America LLC and Unifi Aviation Canada, Inc. Total net unfunded revolving and delayed draw loan commitments Investment Company, Net Adjusted Unfunded Commitments Investment Company, Net Adjusted Unfunded Commitments Investment Type [Axis] Investment Type [Axis] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Trading Technologies International, Inc. Trading Technologies International, Inc. [Member] Trading Technologies International, Inc. ADL CLO 4 Debt Securitization ADL CLO 4 Debt Securitization [Member] ADL CLO 4 Debt Securitization LIABILITIES Liabilities Liabilities [Abstract] Income Statement Location [Axis] Location, Statement of Income, Balance [Axis] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Interest rate swap 1 Interest Rate Swap 1 [Member] Interest Rate Swap 1 Other liabilities Other Liabilities Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc. Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc. [Member] Cardinal Parent, Inc. and Packers Software Intermediate Holdings, Inc. Borrowing capacity increase under line of credit Line of credit, borrowing capacity incremental increase limit Line Of Credit Facility, Accordion Feature, Increase Limit Line Of Credit Facility, Accordion Feature, Increase Limit Total amount Dividends, Common Stock Common stock, shares authorized (in shares) Common Stock, Shares Authorized Number of shares issued (in shares) Sale of Stock, Number of Shares Issued in Transaction Storm Investment S.a.r.l. And Atletico Holdco, S.L. Storm Investment S.a.r.l. And Atletico Holdco, S.L. [Member] Storm Investment S.a.r.l. And Atletico Holdco, S.L. Assets under management Assets under Management, Carrying Amount October 2036 CLO Secured Loans October 2036 CLO Secured Loans [Member] October 2036 CLO Secured Loans Schedule of Carrying and Fair Values of Debt Obligations Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block] Exercise Price Award Exercise Price Authorized amount of stock repurchase program Share Repurchase Program, Authorized, Amount Document Quarterly Report Document Quarterly Report Medlar Bidco Limited Medlar Bidco Limited [Member] Medlar Bidco Limited Inszone Mid, LLC and INSZ Holdings, LLC Inszone Mid, LLC and INSZ Holdings, LLC [Member] Inszone Mid, LLC and INSZ Holdings, LLC 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] BGI Purchaser, Inc. BGI Purchaser, Inc. [Member] BGI Purchaser, Inc. Unobservable Input Investment Company, Investment Owned, Measurement Input Verista, Inc. Verista, Inc. [Member] Verista, Inc. Amortized cost of investments Amortized Cost Investment Owned, Cost Purchases (cost) Investments in and Advances to Affiliates, at Fair Value, Gross Additions Per Share Data: Investment Company, Per Share Data [Abstract] Investment Company, Per Share Data Aggregate principal amount outstanding Repayments of Long-Term Debt Receivable for open trades Receivable, Investment, Sale January 2038 CLO Subordinated Notes January 2038 CLO Subordinated Notes [Member] January 2038 CLO Subordinated Notes Base management fee Base management fee Management Fee Expense Flexera Software LLC Flexera Software LLC [Member] Flexera Software LLC Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Net unrealized gains (losses) Unrealized Gain (Loss), Investment, Derivative, and Foreign Currency Transaction, Operating, after Tax FINANCIAL HIGHLIGHTS Investment Company, Financial Highlights [Text Block] Forward Keystone Holdings, LP Forward Keystone Holdings, LP [Member] Forward Keystone Holdings, LP Equity Component [Domain] Equity Component [Domain] Net realized gains (losses) and net unrealized losses Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Measurement Input Type [Domain] Measurement Input Type [Domain] Purchases of investments Purchases of investments Payment for Purchase, Investment, Operating Activity Net Proceeds Sale of Stock, Consideration Received on Transaction Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc. Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc. [Member] Flinn Scientific, Inc. and WCI-Quantum Holdings, Inc. Adoption Date Trading Arrangement Adoption Date Amerivet Partners Management, Inc. and AVE Holdings LP Amerivet Partners Management, Inc. and AVE Holdings LP [Member] Amerivet Partners Management, Inc. and AVE Holdings LP Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Underwriting Fees/Offering Expenses Payments of Stock Issuance Costs Interest income Interest income Interest Income, Operating Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Open Forward Foreign Currency Contract [Line Items] Open Forward Foreign Currency Contract [Line Items] Schedule of Revolving and Term Loan Schedule of Line of Credit Facilities [Table Text Block] January 2027 Notes January 2027 Notes January 2027 Notes (principal amount outstanding of $900) January 2027 Notes [Member] January 2027 Notes Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Bamboo Purchaser, Inc. Bamboo Purchaser, Inc. [Member] Bamboo Purchaser, Inc. TCP Hawker Intermediate LLC TCP Hawker Intermediate LLC [Member] TCP Hawker Intermediate LLC Research Now Group, LLC and Dynata, LLC and New Insight Holdings, Inc. Research Now Group, LLC and Dynata, LLC and New Insight Holdings, Inc. [Member] Research Now Group, LLC and Dynata, LLC and New Insight Holdings, Inc. Letter of Credit Letter of Credit [Member] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Weighted Average Weighted Average [Member] All Adjustments to Compensation All Adjustments to Compensation [Member] Income Taxes Income Tax, Policy [Policy Text Block] Net cash provided by (used in) operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Energy Energy Sector [Member] Income Statement [Abstract] STOCKHOLDERS’ EQUITY Equity, Attributable to Parent [Abstract] Document Transition Report Document Transition Report Monica Holdco (US) Inc. Monica Holdco (US) Inc. [Member] Monica Holdco (US) Inc. HPCC Parent, Inc. and Patriot Container Corp. HPCC Parent, Inc. and Patriot Container Corp. [Member] HPCC Parent, Inc. and Patriot Container Corp. IH Elevate Buyer, Inc. and Integrum Elevate Co-Invest LP IH Elevate Buyer, Inc. and Integrum Elevate Co-Invest LP [Member] IH Elevate Buyer, Inc. and Integrum Elevate Co-Invest LP PIK dividend income PIK dividends Dividend Income, Operating, Paid in Kind Investments, at fair value, and other non-qualifying assets Investments, At Fair Value, And Other Non-Qualifying Assets [Member] Investments, At Fair Value, And Other Non-Qualifying Assets EXPENSES: Operating Expenses [Abstract] Eliminations Intersegment Eliminations [Member] Midco Holding, LLC and Nivel Topco, LLC Midco Holding, LLC and Nivel Topco, LLC [Member] Midco Holding, LLC and Nivel Topco, LLC Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Aggregate gross unrealized gain for federal tax purposes Investment, Tax Basis, Unrealized Gain KBHS Acquisition, LLC (d/b/a Alita Care, LLC) KBHS Acquisition, LLC (d/b/a Alita Care, LLC) [Member] KBHS Acquisition, LLC (d/b/a Alita Care, LLC) Silk Holdings III LLC and Silk Holdings I Corp., Silk Holdings III LLC and Silk Holdings I Corp., [Member] Silk Holdings III LLC and Silk Holdings I Corp., Number of debt maturity extensions Debt Instrument, Number Of Extension Options Debt Instrument, Number Of Extension Options Spread Investment, Basis Spread, Variable Rate City Area Code City Area Code % of Total Assets Investment Owned, Percent Of Total Assets Investment Owned, Percent Of Total Assets Viper Bidco, Inc. Viper Bidco, Inc. [Member] Viper Bidco, Inc. Geographic Concentration Risk Geographic Concentration Risk [Member] Incentive Rate, Quarterly Catch-Up Threshold Investment Advisory And Management Agreement - Incentive Rate, Quarterly Catch-Up Threshold [Member] Investment Advisory And Management Agreement - Incentive Rate, Quarterly Catch-Up Threshold ADL CLO 7 Debt Securitization ADL CLO 7 Debt Securitization [Member] ADL CLO 7 Debt Securitization SUBSEQUENT EVENTS Subsequent Events [Text Block] Zinc Buyer Corporation and Marmic Fire & Safety Co., Inc. Zinc Buyer Corporation and Marmic Fire & Safety Co., Inc. [Member] Zinc Buyer Corporation and Marmic Fire & Safety Co., Inc. Name Forgone Recovery, Individual Name Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] July 2038 CLO Notes, Class A-1-LR Term Loans July 2038 CLO Notes, Class A-1-LR Term Loans [Member] July 2038 CLO Notes, Class A-1-LR Term Loans Fitness Ventures Holdings, Inc. and Meaningful Partners Fitness Ventures Co-Investment LP Fitness Ventures Holdings, Inc. and Meaningful Partners Fitness Ventures Co-Investment LP [Member] Fitness Ventures Holdings, Inc. and Meaningful Partners Fitness Ventures Co-Investment LP Sunk Rock Foundry Partners LP, Hatteras Electrical Manufacturing Holding Company and Sigma Electric Manufacturing Corporation Sunk Rock Foundry Partners LP, Hatteras Electrical Manufacturing Holding Company and Sigma Electric Manufacturing Corporation [Member] Sunk Rock Foundry Partners LP, Hatteras Electrical Manufacturing Holding Company and Sigma Electric Manufacturing Corporation Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] Financial Support for Nonconsolidated Legal Entity [Abstract] Financial Support for Nonconsolidated Legal Entity [Abstract] Transportation Transportation [Member] Transportation CMG HoldCo, LLC and CMG Buyer Holdings, Inc. CMG HoldCo, LLC and CMG Buyer Holdings, Inc. [Member] CMG HoldCo, LLC and CMG Buyer Holdings, Inc. Entity [Domain] Entity [Domain] Per share market value at end of period (in dollars per share) Investment Company, Market Value, Per Share Less: funded commitments Total capital funded Investment Company, Funded Commitments Investment Company, Funded Commitments Pinnacle MEP Intermediate Holdco LLC and BPCP Pinnacle Holdings, Inc. Pinnacle MEP Intermediate Holdco LLC and BPCP Pinnacle Holdings, Inc. [Member] Pinnacle MEP Intermediate Holdco LLC and BPCP Pinnacle Holdings, Inc. Crown CT Parent Inc., Crown CT HoldCo Inc. and Crown CT Management LLC Crown CT Parent Inc., Crown CT HoldCo Inc. and Crown CT Management LLC [Member] Crown CT Parent Inc., Crown CT HoldCo Inc. and Crown CT Management LLC Yield analysis Valuation Technique, Yield Analysis [Member] Valuation Technique, Yield Analysis Accounts payable and other liabilities Accounts Payable and Other Accrued Liabilities Kellermeyer Bergensons Services, LLC and KBS TopCo, LLC Kellermeyer Bergensons Services, LLC and KBS TopCo, LLC [Member] Kellermeyer Bergensons Services, LLC and KBS TopCo, LLC Other assets Increase (Decrease) in Other Operating Assets Issuances of common stock (net of offering and underwriting costs) (in shares) Stock Issued During Period, Shares, New Issues Automobiles and Components Automobiles And Components Sector [Member] Automobiles And Components Sector Invited, Inc. and KSL Longdrive Co-Invest, L.P. Invited, Inc. and KSL Longdrive Co-Invest, L.P. [Member] Invited, Inc. and KSL Longdrive Co-Invest, L.P. City Line Distributors LLC and City Line Investments LLC City Line Distributors LLC and City Line Investments LLC [Member] City Line Distributors LLC and City Line Investments LLC Consumer Services Consumer Services [Member] Consumer Services Principal Investment Owned, Balance, Principal Amount Measurement Basis [Axis] Measurement Basis [Axis] Unrealized Appreciation / (Depreciation) Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Tax cost basis Investment, Tax Basis, Cost Cash, Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Interest rate swap 4 Interest Rate Swap 4 [Member] Interest Rate Swap 4 Stock available for issuance Sale Of Stock, Available For Issuance, Amount Sale Of Stock, Available For Issuance, Amount AHR Funding Holdings, Inc. And AHR Parent Holdings, L.P. AHR Funding Holdings, Inc. And AHR Parent Holdings, L.P. [Member] AHR Funding Holdings, Inc. And AHR Parent Holdings, L.P. Subsequent Event Type [Domain] Subsequent Event Type [Domain] Pathway Vet Alliance LLC and Jedi Group Holdings LLC Pathway Vet Alliance LLC and Jedi Group Holdings LLC [Member] Pathway Vet Alliance LLC and Jedi Group Holdings LLC Average stated interest rate Long-Term Debt, Weighted Average Interest Rate, over Time Revision of Prior Period [Domain] Revision of Prior Period [Domain] Investment Company [Abstract] Doxim Inc. Doxim Inc. [Member] Doxim Inc. Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Schedule of Significant Unobservable Inputs Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Interest Income Recognition Revenue Recognition, Interest [Policy Text Block] North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P. North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P. [Member] North American Science Associates, LLC, Cardinal Purchaser LLC and Cardinal Topco Holdings, L.P. Debt issuance costs Payments of Debt Issuance Costs Entity Current Reporting Status Entity Current Reporting Status Consumer Distribution and Retail Consumer Distribution And Retail [Member] Consumer Distribution And Retail Net cash (used in) provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Controlled affiliate company investments Investment, Affiliated Issuer, Controlled [Member] Interim Period, Costs Not Allocable [Domain] Interim Period, Costs Not Allocable [Domain] Total Shareholder Return Amount Total Shareholder Return Amount October 2036 Class A CLO Loans October 2036 Class A CLO Loans [Member] October 2036 Class A CLO Loans North Haven Fairway Buyer, LLC and Fairway Lawns, LLC North Haven Fairway Buyer, LLC and Fairway Lawns, LLC [Member] North Haven Fairway Buyer, LLC and Fairway Lawns, LLC Total return based on net asset value Investment Company, Total Return Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Adjustments to reconcile net increase in stockholders’ equity resulting from operations: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] PestCo Holdings, LLC and PestCo, LLC PestCo Holdings, LLC and PestCo, LLC [Member] PestCo Holdings, LLC and PestCo, LLC Paris US Holdco, Inc. and Trimaster Manufacturing Inc. Paris US Holdco, Inc. and Trimaster Manufacturing Inc. [Member] Paris US Holdco, Inc. and Trimaster Manufacturing Inc. Debt Instrument, Redemption, Period Three Debt Instrument, Redemption, Period Three [Member] Schedule of Common Shares Issued and Sold Schedule of Stockholders Equity [Table Text Block] Percentage of unused portion of line of credit commitment Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Average issue price per share (in dollars per share) Shares Issued, Price Per Share Financial Instruments [Domain] Financial Instruments [Domain] April 2036 CLO Secured Notes, Additional Notes April 2036 CLO Secured Notes, Additional Notes [Member] April 2036 CLO Secured Notes, Additional Notes Bolt Newco Holdings, L.P. and Bolt Purchaser, LLC Bolt Newco Holdings, L.P. and Bolt Purchaser, LLC [Member] Bolt Newco Holdings, L.P. and Bolt Purchaser, LLC Total derivative assets Derivative Asset Other income Management fees and other income Other Income Underlying Securities Award Underlying Securities Amount Reddy Ice LLC Reddy Ice LLC [Member] Reddy Ice LLC Fair value Estimate of Fair Value Measurement [Member] Issuances of common stock (net of offering and underwriting costs) Stock Issued During Period, Value, New Issues Ares Capital Corporation Ares Capital Corporation [Member] Ares Capital Corporation Burgess Point Purchaser Corporation Burgess Point Purchaser Corporation [Member] Burgess Point Purchaser Corporation February 4, 2026 O 2026 M2 Dividends [Member] O 2026 M2 Dividends Schedule of Financial Highlights Investment Company, Financial Highlights [Table Text Block] Preferred equity Preferred Stock [Member] Waverly Advisors, LLC and WAAM Topco, LLC Waverly Advisors, LLC and WAAM Topco, LLC [Member] Waverly Advisors, LLC and WAAM Topco, LLC January 2030 Notes January 2030 Notes (principal amount outstanding of $800 and $0, respectively) January 2030 Notes [Member] January 2030 Notes Operating lease, weighted average discount rate, percent Operating Lease, Weighted Average Discount Rate, Percent Health Care Equipment and Services Healthcare Sector [Member] Mari Miami II LLC and South Florida Tennis, LLC Mari Miami II LLC and South Florida Tennis, LLC [Member] Mari Miami II LLC and South Florida Tennis, LLC Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] Net accretion of discount on investments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Accretion (Amortization) of Discount On Securities Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Accretion (Amortization) of Discount On Securities Modigent, LLC and OMERS PMC Investment Holdings LLC Modigent, LLC and OMERS PMC Investment Holdings LLC [Member] Modigent, LLC and OMERS PMC Investment Holdings LLC Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Hills Distribution, Inc., Hills Intermediate FT Holdings, LLC and GMP Hills, LP Hills Distribution, Inc., Hills Intermediate FT Holdings, LLC and GMP Hills, LP [Member] Hills Distribution, Inc., Hills Intermediate FT Holdings, LLC and GMP Hills, LP Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] April 28, 2026 O 2026 M4 Dividends [Member] Truist Insurance Holdings, LLC and McGriff Insurance Services, LLC Truist Insurance Holdings, LLC and McGriff Insurance Services, LLC [Member] Truist Insurance Holdings, LLC and McGriff Insurance Services, LLC Current Fiscal Year End Date Current Fiscal Year End Date Telecommunication Services Telecommunication Services [Member] Telecommunication Services Shares/Units Investment Owned, Balance, Shares CrossCountry Mortgage, LLC and CrossCountry Holdco, LLC CrossCountry Mortgage, LLC and CrossCountry Holdco, LLC [Member] CrossCountry Mortgage, LLC and CrossCountry Holdco, LLC Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Financial Services Financial Services Sector [Member] Himalaya TopCo LLC and BCPE Hyperlink Holdings, LP Himalaya TopCo LLC and BCPE Hyperlink Holdings, LP [Member] Himalaya TopCo LLC and BCPE Hyperlink Holdings, LP MP Midco Holdings, LLC and MP Topco Holdings, LLC MP Midco Holdings, LLC and MP Topco Holdings, LLC [Member] MP Midco Holdings, LLC and MP Topco Holdings, LLC Foreign currency forward contract, EUR 1 Foreign currency forward contract, EUR 1 [Member] Foreign currency forward contract, EUR 1 Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC [Member] Marcone Yellowstone Buyer Inc. and Marcone Yellowstone Holdings, LLC 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] Cash dividends declared (in usd per share) Common Stock, Dividends, Per Share, Declared Securities Act File Number Securities Act File Number Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P. Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P. [Member] Neptune Bidco US Inc. and Elliott Metron Co-Investor Aggregator L.P. US Salt Investors, LLC and Emerald Lake Pearl Acquisition-A, L.P. US Salt Investors, LLC and Emerald Lake Pearl Acquisition-A, L.P. [Member] US Salt Investors, LLC and Emerald Lake Pearl Acquisition-A, L.P. Unitranche loans Debt Securities, First Lien Senior Secured Loans, Unitranche [Member] Debt Securities, First Lien Senior Secured Loans, Unitranche Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Measure: Measure [Axis] Interest and credit facility fees Interest And Credit Facility Fees [Member] Interest And Credit Facility Fees OPH NEP Investment, LLC OPH NEP Investment, LLC [Member] OPH NEP Investment, LLC XIFIN, Inc. and ACP Charger Co-Invest LLC XIFIN, Inc. and ACP Charger Co-Invest LLC [Member] XIFIN, Inc. and ACP Charger Co-Invest LLC Net amortization of discount/premium on notes payable Net amortization of original issue discount/premium Amortization of Debt Discount (Premium) March 2029 Notes March 2029 Notes (principal amount outstanding of $1,000) March 2029 Notes [Member] March 2029 Notes Ferrellgas, L.P. and Ferrelgas Partners, L.P. Ferrellgas, L.P. and Ferrelgas Partners, L.P. [Member] Ferrellgas, L.P. and Ferrelgas Partners, L.P. Equity Components [Axis] Equity Components [Axis] Net realized gains (losses) Net realized (gains) losses on investments, foreign currency and other transactions Net realized losses on investments and foreign currency Realized Gain (Loss), Investment, Derivative, and Foreign Currency Transaction Price Change, Operating, after Tax Taxes, including excise taxes, paid during the period Income Tax Paid, after Refund Received Schedule of Derivative Instruments Schedule of Foreign Exchange Contracts, Statement of Financial Position [Table Text Block] Pathstone Family Office LLC and Kelso XI Tailwind Co-Investment, L.P. Pathstone Family Office LLC and Kelso XI Tailwind Co-Investment, L.P. [Member] Pathstone Family Office LLC and Kelso XI Tailwind Co-Investment, L.P. Entity Interactive Data Current Entity Interactive Data Current Variable Rate [Axis] Variable Rate [Axis] Less: Net income (loss) attributable to non-controlling interests in Consolidated IHAM Vehicles Net Income (Loss) Attributable to Noncontrolling Interest Team Acquisition Corporation Team Acquisition Corporation [Member] Team Acquisition Corporation Interest Rate Swap 6 Interest Rate Swap 6 [Member] Interest Rate Swap 6 Entity Small Business Entity Small Business Ivy Hill Asset Management, L.P. Ivy Hill Asset Management, L.P. [Member] Ivy Hill Asset Management, L.P. Banyan Software Holdings, LLC and Banyan Software Intermediate, Inc. Banyan Software Holdings, LLC and Banyan Software Intermediate, Inc. [Member] Banyan Software Holdings, LLC and Banyan Software Intermediate, Inc. Fair Value Disclosure of Asset and Liability Not Measured at Fair Value [Table] Fair Value Disclosure of Asset and Liability Not Measured at Fair Value [Table] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Ground Penetrating Radar Systems, LLC and RC VI Buckeye Holdings LLC Ground Penetrating Radar Systems, LLC and RC VI Buckeye Holdings LLC [Member] Ground Penetrating Radar Systems, LLC and RC VI Buckeye Holdings LLC Proceeds from sales and repayments of investments and other transactions Proceeds from Disposition of Investment, Operating Activity FINANCING ACTIVITIES: Cash Provided by (Used in) Financing Activity, Continuing Operation [Abstract] Document Type Document Type Knight AcquireCo, LLC and Knight Holdings, LP Knight AcquireCo, LLC and Knight Holdings, LP [Member] Knight AcquireCo, LLC and Knight Holdings, LP Net realized gain on extinguishment of debt Gain (Loss) on Extinguishment of Debt NET ASSET VALUE PER SHARE (in dollars per share) Net asset value, beginning of period (in dollars per share) Net asset value, end of period (in dollars per share) Net Asset Value Per Share Collections of PIK interest Paid-in-Kind Interest SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Coupon, PIK Investment, Interest Rate, Paid in Kind Open Swap Contract, Identifier [Axis] Open Swap Contract, Identifier [Axis] Subsequent Event [Line Items] Subsequent Event [Line Items] Thermostat Purchaser III, Inc. Thermostat Purchaser III, Inc. [Member] Thermostat Purchaser III, Inc. Statement of Stockholders' Equity [Abstract] Borrowings on debt Proceeds from Issuance of Long-Term Debt Local Phone Number Local Phone Number June 2028 Notes June 2028 Notes (principal amount outstanding of $1,250) June 2028 Notes [Member] June 2028 Notes Less: funded commitments Investment Company, Funded Commitments, Net Investment Company, Funded Commitments, Net Loans on non-accrual status, as a percent of total investments at fair value Investment Owned, Non-Accrual Status, Percent of Fair Value Investment Owned, Non-Accrual Status, Percent of Fair Value Wellington Bidco Inc. and Wellington TopCo LP Wellington Bidco Inc. and Wellington TopCo LP [Member] Wellington Bidco Inc. and Wellington TopCo LP Commitments and contingencies (Note 7) Commitments and Contingencies Technology Hardware and Equipment Technology Hardware And Equipment [Member] Technology Hardware And Equipment Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] TPG IX Cardiff Debt HoldCo I, LLC, TPG IX Cardiff Debt Holdco II, LLC, TPG IX Cardiff CI I, L.P., and TPG IX Cardiff CI II, L.P. TPG IX Cardiff Debt HoldCo I, LLC, TPG IX Cardiff Debt Holdco II, LLC, TPG IX Cardiff CI I, L.P., and TPG IX Cardiff CI II, L.P. [Member] TPG IX Cardiff Debt HoldCo I, LLC, TPG IX Cardiff Debt Holdco II, LLC, TPG IX Cardiff CI I, L.P., and TPG IX Cardiff CI II, L.P. Senior Direct Lending Program Senior Direct Lending Program [Member] Senior Direct Lending Program Radius Aerospace, Inc. and Radius Aerospace Europe Limited Radius Aerospace, Inc. and Radius Aerospace Europe Limited [Member] Radius Aerospace, Inc. and Radius Aerospace Europe Limited Rocket Buyer, LLC Rocket Buyer, LLC [Member] Rocket Buyer, LLC Percentage of total commitment under line of credit Line of Credit Facility, Percentage Of Commitment Line of Credit Facility, Percentage Of Commitment Dividends declared and payable Investment Company, Dividend Distribution Executive Category: Executive Category [Axis] Distributions to subordinated notes Distribution Expense Distribution Expense Other Commitments [Table] Other Commitments [Table] Debt to equity leverage ratio Investment Company, Debt To Equity, Leverage Ratio Investment Company, Debt To Equity, Leverage Ratio GNZ Energy Bidco Limited and Galileo Co-investment Trust I GNZ Energy Bidco Limited and Galileo Co-investment Trust I [Member] GNZ Energy Bidco Limited and Galileo Co-investment Trust I Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Mustang Prospects Holdco, LLC, Mustang Prospects Purchaser, LLC and Senske Acquisition, Inc. Mustang Prospects Holdco, LLC, Mustang Prospects Purchaser, LLC and Senske Acquisition, Inc. [Member] Mustang Prospects Holdco, LLC, Mustang Prospects Purchaser, LLC and Senske Acquisition, Inc. Apex Service Partners, LLC and Apex Service Partners Holdings, LLC Apex Service Partners, LLC and Apex Service Partners Holdings, LLC [Member] Apex Service Partners, LLC and Apex Service Partners Holdings, LLC Supplemental Information: Supplemental Cash Flow Information [Abstract] THG Acquisition, LLC THG Acquisition, LLC [Member] THG Acquisition, LLC Bluejack Fire Acquisition, Inc. and Bluejack Fire Holdings LLC Bluejack Fire Acquisition, Inc. and Bluejack Fire Holdings LLC [Member] Bluejack Fire Acquisition, Inc. and Bluejack Fire Holdings LLC PEO Name PEO Name GAPCO AIV Interholdco (CP), L.P. GAPCO AIV Interholdco (CP), L.P. [Member] GAPCO AIV Interholdco (CP), L.P. Other investment-related income Interest And Dividend Income, Securities, Including Realized Gain (Loss) On Investments, Operating Interest And Dividend Income, Securities, Including Realized Gain (Loss) On Investments, Operating Interest Rate Swap 7 Interest Rate Swap 7 [Member] Interest Rate Swap 7 Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Investment income Interest and Dividend Income, Securities, Operating Ares Management Capital Markets Ares Management Capital Markets [Member] Ares Management Capital Markets Other Commitments [Line Items] Other Commitments [Line Items] Sunvair Aerospace Group, Inc. and GB Helios Holdings, L.P. Sunvair Aerospace Group, Inc. and GB Helios Holdings, L.P. [Member] Sunvair Aerospace Group, Inc. and GB Helios Holdings, L.P. Petvisor Holdings, LLC Petvisor Holdings, LLC [Member] Petvisor Holdings, LLC Capital Structuring Service Fees and Other Income Revenue [Policy Text Block] Base management fee payable Management Fee Payable Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Base Rate Base Rate [Member] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Incentive fee Management and Service Fees, Incentive Rate Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Premier Specialties, Inc. and RMCF V CIV XLIV, L.P. Premier Specialties, Inc. and RMCF V CIV XLIV, L.P. [Member] Premier Specialties, Inc. and RMCF V CIV XLIV, L.P. 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] Debt Instrument [Axis] Debt Instrument [Axis] Subsequent Event [Table] Subsequent Event [Table] Materials Materials Sector [Member] Materials Sector Premiere Buyer, LLC Premiere Buyer, LLC [Member] Premiere Buyer, LLC Related party transaction amounts payable Related Party Transaction, Amounts of Transaction Basic net income per common share (in usd per share) Net increase in stockholders’ equity resulting from operations per share—basic (in usd per share) Earnings Per Share, Basic Equity Offering Expenses Equity Offering Expenses [Policy Text Block] Equity Offering Expenses Policy Text Block Measurement Input Type [Axis] Measurement Input Type [Axis] Foreign currency forward contract, Japan Foreign currency forward contract, Japan [Member] Foreign currency forward contract, Japan Priority Waste Holdings LLC, Priority Waste Holdings Indiana LLC and Priority Waste Super Holdings, LLC Priority Waste Holdings LLC, Priority Waste Holdings Indiana LLC and Priority Waste Super Holdings, LLC [Member] Priority Waste Holdings LLC, Priority Waste Holdings Indiana LLC and Priority Waste Super Holdings, LLC Lightbeam Bidco, Inc Lightbeam Bidco, Inc [Member] Lightbeam Bidco, Inc Insider Trading Arrangements [Line Items] Plaskolite PPC Intermediate II LLC and Plaskolite PPC Blocker LLC Plaskolite PPC Intermediate II LLC and Plaskolite PPC Blocker LLC [Member] Plaskolite PPC Intermediate II LLC and Plaskolite PPC Blocker LLC September 2030 Notes September 2030 Notes (principal amount outstanding of $750) September 2030 Notes [Member] September 2030 Notes Sunrun Xanadu Issuer 2019-1, LLC and Sunrun Xanadu Holdings 2019-1, LLC Sunrun Xanadu Issuer 2019-1, LLC and Sunrun Xanadu Holdings 2019-1, LLC [Member] Sunrun Xanadu Issuer 2019-1, LLC and Sunrun Xanadu Holdings 2019-1, LLC 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] Ownership percentage of outstanding SDLP Certificates Ownership Percentage Ownership Percentage Dynamic NC Aerospace Holdings, LLC and Dynamic NC Investment Holdings, LP Dynamic NC Aerospace Holdings, LLC and Dynamic NC Investment Holdings, LP [Member] Dynamic NC Aerospace Holdings, LLC and Dynamic NC Investment Holdings, LP Total unfunded equity commitments Total net unfunded revolving loan commitments Total unfunded capital commitments Unfunded revolving and delayed draw loan commitments Investment Company, Financial Support to Investee Contractually Required, Not Provided, Amount Fair Value Measurement [Domain] Fair Value Measurement [Domain] DecoPac, Inc. and KCAKE Holdings Inc. DecoPac, Inc. and KCAKE Holdings Inc. [Member] DecoPac, Inc. and KCAKE Holdings Inc. Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Telle Tire & Auto Service, LLC and Next Horizon Capital TireCo SPV, LP Telle Tire & Auto Service, LLC and Next Horizon Capital TireCo SPV, LP [Member] Telle Tire & Auto Service, LLC and Next Horizon Capital TireCo SPV, LP WorkWave Intermediate II, LLC WorkWave Intermediate II, LLC [Member] WorkWave Intermediate II, LLC % of Total Assets, non-qualifying assets Composition, percent of fair value Concentration Risk, Percentage Investments, At Fair Value Investments, At Fair Value [Member] Investments, At Fair Value Johnnie-O Inc. and Johnnie-O Holdings Inc. Johnnie-O Inc. and Johnnie-O Holdings Inc. [Member] Johnnie-O Inc. and Johnnie-O Holdings Inc. April 2031 Notes April 2031 Notes (principal amount outstanding of $750 and $0, respectively) April 2031 Notes [Member] April 2031 Notes Equity Awards Adjustments Equity Awards Adjustments [Member] Napa Management Services Corporation and ASP NAPA Holdings, LLC Napa Management Services Corporation and ASP NAPA Holdings, LLC [Member] Napa Management Services Corporation and ASP NAPA Holdings, LLC Bamboo US BidCo LLC Bamboo US BidCo LLC [Member] Bamboo US BidCo LLC Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V. Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V. [Member] Nelipak Holding Company, Nelipak European Holdings Cooperatief U.A., KNPAK Holdings, LP and PAKNK Netherlands Treasury B.V. Industry Sector [Domain] Industry Sector [Domain] Maximum issuance of common stock Capital Stock, Capital Shares Reserved For Future Issuance, Amount Capital Stock, Capital Shares Reserved For Future Issuance, Amount Sundance Group Holdings, Inc. Sundance Group Holdings, Inc. [Member] Sundance Group Holdings, Inc. % of Net Assets Investment Owned, Net Assets, Percentage Interest Rate Swap 8 Interest Rate Swap 8 [Member] Interest Rate Swap 8 LHS Borrower, LLC, LH Equity Investors, L.P., Leaf Home, LLC and GC Fund IV Blocker LLC LHS Borrower, LLC, LH Equity Investors, L.P., Leaf Home, LLC and GC Fund IV Blocker LLC [Member] LHS Borrower, LLC, LH Equity Investors, L.P., Leaf Home, LLC and GC Fund IV Blocker LLC Number of loans on non-accrual status Investment Owned, Number Of Loans On Non-Accrual Status Investment Owned, Number Of Loans On Non-Accrual Status PracticeTek Purchaser, LLC, PracticeTek MidCo, LLC and GSV PracticeTek Holdings, LLC PracticeTek Purchaser, LLC, PracticeTek MidCo, LLC and GSV PracticeTek Holdings, LLC [Member] PracticeTek Purchaser, LLC, PracticeTek MidCo, LLC and GSV PracticeTek Holdings, LLC Upfront Payments/Receipts Derivative Liability, Upfront Payments (Receipts) Upfront Payments/Receipts Repayments and repurchases of debt Repayments of Senior Debt NMC Skincare Intermediate Holdings II, LLC NMC Skincare Intermediate Holdings II, LLC [Member] NMC Skincare Intermediate Holdings II, LLC March 2032 Notes March 2032 Notes (principal amount outstanding of $1,000) March 2032 Notes [Member] March 2032 Notes Collision SP Subco, LLC Collision SP Subco, LLC [Member] Collision SP Subco, LLC Derivative Instruments Table [Abstract] Derivative Instruments Table [Abstract] Derivative Instruments Table Statement [Line Items] Derivatives, Fair Value [Line Items] ELM DebtCo, LLC ELM DebtCo, LLC [Member] ELM DebtCo, LLC Premise Health Holding Corp. and OMERS Bluejay Investment Holdings LP Premise Health Holding Corp. and OMERS Bluejay Investment Holdings LP [Member] Premise Health Holding Corp. and OMERS Bluejay Investment Holdings LP Total distributions to stockholders (in dollars per share) Total distributions to stockholders (in dollars per share) Investment Company, Distribution to Shareholders, Per Share UFS, LLC and BV-UFS Aggregator, LLC UFS, LLC and BV-UFS Aggregator, LLC [Member] UFS, LLC and BV-UFS Aggregator, LLC Sports, Media and Entertainment Sports, Media And Entertainment [Member] Sports, Media And Entertainment Truck-Lite Co., LLC, ECCO Holdings Corp., and Clarity Technologies Holdings, LP, Truck-Lite Co., LLC, ECCO Holdings Corp., and Clarity Technologies Holdings, LP, [Member] Truck-Lite Co., LLC, ECCO Holdings Corp., and Clarity Technologies Holdings, LP, Revolving Credit Facility Senior Secured Revolving Credit Facility [Member] Senior Secured Revolving Credit Facility Hedging Designation [Domain] Hedging Designation [Domain] Class of Stock [Domain] Class of Stock [Domain] Foreign currency forward contract, AUD Foreign currency forward contract, AUD [Member] Foreign currency forward contract, AUD Base Rate, During Reinvestment Period Base Rate, During Reinvestment Period [Member] Base Rate, During Reinvestment Period Statement of Cash Flows [Abstract] Foreign currency forward contract Foreign Exchange Forward [Member] Midwest US Midwest Region [Member] Bells Parent, Inc. Bells Parent, Inc. [Member] Bells Parent, Inc. Lido Advisors, LLC and LAL Group Holdings, LLC, Lido Advisors, LLC and LAL Group Holdings, LLC, [Member] Lido Advisors, LLC and LAL Group Holdings, LLC, Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Investments Investment, Policy [Policy Text Block] Shoes For Crews Global, LLC and Shoes For Crews Holdings, LLC Shoes For Crews Global, LLC and Shoes For Crews Holdings, LLC [Member] Shoes For Crews Global, LLC and Shoes For Crews Holdings, LLC Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc. Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc. [Member] Symplr Software Inc. and Symplr Software Intermediate Holdings, Inc. Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Net realized gains (losses) from foreign currency and other transactions Gain (Loss) on Sale of Derivatives Investment Company, Financial Highlights [Table] Investment Company, Financial Highlights [Table] Entity Filer Category Entity Filer Category Investment Funds and Vehicles Investment Funds And Vehicles [Member] Investment Funds And Vehicles Dividends [Axis] Dividends [Axis] Revision of Prior Period [Axis] Revision of Prior Period [Axis] AQ Sunshine, Inc. and BayPine Regal Co-Invest, LP AQ Sunshine, Inc. and BayPine Regal Co-Invest, LP [Member] AQ Sunshine, Inc. and BayPine Regal Co-Invest, LP ATI Restoration, LLC ATI Restoration, LLC [Member] ATI Restoration, LLC Astra Energy Group Limited, GNZ Energy Bidco Limited, and Galileo Co-investment Trust I Astra Energy Group Limited, GNZ Energy Bidco Limited, and Galileo Co-investment Trust I [Member] Astra Energy Group Limited, GNZ Energy Bidco Limited, and Galileo Co-investment Trust I Surescripts, LLC Surescripts, LLC [Member] Surescripts, LLC CoreLogic, Inc. and T-VIII Celestial Co-Invest LP CoreLogic, Inc. and T-VIII Celestial Co-Invest LP [Member] CoreLogic, Inc. and T-VIII Celestial Co-Invest LP Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] October 2036 CLO Subordinated Notes October 2036 CLO Subordinated Notes [Member] October 2036 CLO Subordinated Notes Investments, Debt and Equity Securities [Abstract] Interest and facility fees payable Increase (Decrease) In Interest And Facility Fees Payable Increase (Decrease) In Interest And Facility Fees Payable INVESTMENT INCOME: Net Investment Income [Abstract] Entity Address, Address Line Two Entity Address, Address Line Two Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Imaging Business Machines, L.L.C. and Scanner Holdings Corporation Imaging Business Machines, L.L.C. and Scanner Holdings Corporation [Member] Imaging Business Machines, L.L.C. and Scanner Holdings Corporation Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Administration Agreement Administration Agreement [Member] Administration Agreement Total investment income Gross Investment Income, Operating Equity investment commitments Equity Investment Commitments [Member] Equity Investment Commitments July 2038 CLO Notes, Class A-2-R Senior Floating Rate Notes July 2038 CLO Notes, Class A-2-R Senior Floating Rate Notes [Member] July 2038 CLO Notes, Class A-2-R Senior Floating Rate Notes Interest rate swap collateral payable Derivative Liability Senior Notes Senior Notes [Member] Foreign Currency Translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Entity Address, Address Line One Entity Address, Address Line One Average purchase price per share (in dollars per share) Shares Purchased, Price Per Share Shares Purchased, Price Per Share Consolidation Consolidation, Policy [Policy Text Block] Portfolio turnover rate Investment Company, Portfolio Turnover 365RM Holdco, LLC 365RM Holdco, LLC [Member] 365RM Holdco, LLC S Toys Holdings LLC (fka The Step2 Company, LLC) S Toys Holdings LLC (fka The Step2 Company, LLC) [Member] S Toys Holdings LLC (fka The Step2 Company, LLC) Denali Intermediate Holdings, Inc. and Denali Parent Holdings, L.P Denali Intermediate Holdings, Inc. and Denali Parent Holdings, L.P [Member] Denali Intermediate Holdings, Inc. and Denali Parent Holdings, L.P Discounted cash flow analysis Valuation Technique, Discounted Cash Flow [Member] Statement [Table] Statement [Table] Apple Bidco Holdings, Inc. Apple Bidco Holdings, Inc. [Member] Apple Bidco Holdings, Inc. WU Holdco, Inc. WU Holdco, Inc. [Member] WU Holdco, Inc. Goodlife Fitness Centers Inc. and AP Rainbow Co-Invest L.P. Goodlife Fitness Centers Inc. and AP Rainbow Co-Invest L.P. [Member] Goodlife Fitness Centers Inc. and AP Rainbow Co-Invest L.P. Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Gotham Greens Holdings, PBC Gotham Greens Holdings, PBC [Member] Gotham Greens Holdings, PBC Gross Amount of Recognized Assets Derivative Asset, Subject to Master Netting Arrangement, before Offset July 2038 CLO Notes, Class B-R Senior Floating Rate Notes July 2038 CLO Notes, Class B-R Senior Floating Rate Notes [Member] July 2038 CLO Notes, Class B-R Senior Floating Rate Notes Company Pays Derivative, Basis Spread on Variable Rate Foreign currency and other transactions Unrealized Gain (Loss), Foreign Currency Transaction, before Tax Digicert, Inc., Dcert Buyer, Inc., DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P. Digicert, Inc., Dcert Buyer, Inc., DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P. [Member] Digicert, Inc., Dcert Buyer, Inc., DCert Preferred Holdings, Inc. and Destiny Digital Holdings, L.P. Moonraker AcquisitionCo LLC and Moonraker HoldCo LLC Moonraker AcquisitionCo LLC and Moonraker HoldCo LLC [Member] Moonraker AcquisitionCo LLC and Less: unavailable delayed draw loan commitments due to borrowing base or other covenant restrictions Investment Company, Unavailable Commitments Investment Company, Unavailable Commitments Derivative Instruments and Hedging Activities Disclosure [Abstract] Royal Bank of Canada [Member] Royal Bank of Canada Canadian Imperial Bank of Commerce [Member] Canadian Imperial Bank of Commerce