75000 - Document - Cover Page
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75010 - Statement - Consolidated Statements of Assets And Liabilities
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75020 - Statement - Consolidated Statements of Assets And Liabilities (Parenthetical)
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75030 - Statement - Consolidated Statements of Operations
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75040 - Statement - Consolidated Statements of Changes in Net Assets
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75050 - Statement - Consolidated Statements of Cash Flows
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75060 - Statement - Consolidated Statements of Cash Flows (unaudited) (Parenthetical)
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75070 - Statement - Consolidated Schedule of Investments
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75070 - Statement - Consolidated Schedule of Investments [Default]
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75080 - Statement - Consolidated Schedule of Investments (Parenthetical)
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75090 - Statement - Consolidated Schedule of Investments - Industry Classification
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995480 - Disclosure - Organization
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995490 - Disclosure - Significant Accounting Policies
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995500 - Disclosure - Agreements
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995510 - Disclosure - Net Asset Value Per Share
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995520 - Disclosure - Earnings Per Share
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995530 - Disclosure - Fair Value
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995540 - Disclosure - Debt
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995550 - Disclosure - Financial Highlights
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995560 - Disclosure - Commitments and Contingencies
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995570 - Disclosure - Capital Share Transactions
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995580 - Disclosure - SLR Credit Solutions
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995590 - Disclosure - SLR Equipment Finance
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995600 - Disclosure - Kingsbridge Holdings, LLC
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995610 - Disclosure - SLR Healthcare ABL
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995620 - Disclosure - SLR Business Credit
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995630 - Disclosure - Stock Repurchase Program
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995640 - Disclosure - SLR Senior Lending Program LLC
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995650 - Disclosure - Segment Reporting
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995660 - Disclosure - Subsequent Events
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995670 - Disclosure - Significant Accounting Policies (Policies)
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995680 - Disclosure - Earnings Per Share (Tables)
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995690 - Disclosure - Fair Value (Tables)
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995700 - Disclosure - Debt (Tables)
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995710 - Disclosure - Financial Highlights (Tables)
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995720 - Disclosure - Commitments and Contingencies (Tables)
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995730 - Disclosure - Capital Share Transactions (Tables)
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995740 - Disclosure - SLR Senior Lending Program LLC (Tables)
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995750 - Disclosure - Organization - Additional Information (Details)
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995760 - Disclosure - Significant Accounting Policies - Additional Information (Details)
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995770 - Disclosure - Agreements - Additional Information (Details)
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995780 - Disclosure - Net Asset Value Per Share - Additional Information (Details)
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995790 - Disclosure - Earnings Per Share - Summary of Computation of Basic and Diluted Net (Details)
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995800 - Disclosure - Fair Value - Summary of Assets Measured at Fair Value on a Recurring Basis (Details)
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995810 - Disclosure - Fair Value - Summary of Changes in Fair Value of Level 3 Assets and Liabilities (Details)
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995820 - Disclosure - Fair Value - Additional Information (Details)
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995830 - Disclosure - Fair Value - Summary of Quantitative Information about the Company's Level 3 Asset and Liability (Details)
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995840 - Disclosure - Fair Value - Summary of Quantitative Information about the Company's Level 3 Asset and Liability (Parenthetical) (Details)
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995850 - Disclosure - Debt - Schedule of Long-term Debt Instruments (Details)
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995860 - Disclosure - Debt - Schedule of Long-term Debt Instruments (Parenthetical) (Details)
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995870 - Disclosure - Debt - Additional Information (Details)
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995880 - Disclosure - Financial Highlights - Schedule of Financial Highlights (Details)
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995890 - Disclosure - Financial Highlights - Schedule of Financial Highlights (Parentheticals) (Details)
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995900 - Disclosure - Commitments and Contingencies - Additional Information (Details)
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995910 - Disclosure - Commitments and Contingencies - Summary of Unfunded Debt and Equity Commitments (Details)
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995920 - Disclosure - Capital Share Transactions - Additional Information (Details)
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995930 - Disclosure - Capital Share Transactions - Summary of Transactions In Capital Stock (Details)
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995940 - Disclosure - SLR Credit Solutions - Additional Information (Details)
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995950 - Disclosure - SLR Equipment Finance - Additional Information (Details)
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995960 - Disclosure - Kingsbridge Holdings, LLC - Additional Information (Details)
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995970 - Disclosure - SLR Healthcare ABL - Additional Information (Details)
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995980 - Disclosure - SLR Business Credit - Additional Information (Details)
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995990 - Disclosure - Stock Repurchase Program - Additional Information (Details)
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996000 - Disclosure - SLR Senior Lending Program LLC - Summary of SSLP's portfolio (Details)
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996000 - Disclosure - SLR Senior Lending Program LLC - Summary of SSLP's portfolio (Details) [Default]
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996040 - Disclosure - SLR Senior Lending Program LLC - Additional Information (Details)
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996050 - Disclosure - Segment Reporting - Additional Information (Details)
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996060 - Disclosure - Subsequent Events - Additional Information (Details)
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Increase (Decrease) in Interest Payable, Net
Interest payable
Percentage representing securities investment.
Percentage Representing Securities Investment
Percentage representing securities investment
Suns SPV LLC.
SPV LLC [Member]
SPV LLC [Member]
Net realized and unrealized gain (loss) on investments
Investment Company, Realized and Unrealized Gain (Loss) on Investment and Foreign Currency
Net realized and unrealized gain (loss) on investments and cash equivalents
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]
Summary of Assets Measured at Fair Value on a Recurring Basis
Schedule of Long-term Debt Instruments [Table Text Block]
Schedule of Long-term Debt Instruments
Other Commitment
Other Commitment
Other Commitment
Dividends payable, amount per share
Dividends Payable, Amount Per Share
iCIMS, Inc. [Member]
iCIMS, inc.
iCIMS, Inc. [Member]
Fair Value, Inputs, Level 2 [Member]
Level 2 [Member]
Percentage Of Cumulative Realized Capital Gain Loss
Percentage of Cumulative Realized Capital Gain Loss
Percentage of cumulative realized capital gain loss
Commitments and Contingencies Disclosure [Text Block]
Commitments and Contingencies
Proceeds from Disposition of Investment, Operating Activity
Proceeds from disposition of investments
Investment Company, Financial Highlights [Table Text Block]
Schedule of financial highlights
Common Stock, Shares Authorized
Shares authorized
Common stock, shares authorized
Arcutis Biotherapetics Inc [Member]
Arcutis Biotherapeutics, Inc. [Member]
Arcutis Biotherapetics Inc.
SLR Credit Solutions [Member]
SLR Credit Solutions [Member]
SLR Credit Solutions.
Fair Value by Liability Class [Domain]
Percentage of equity interest contributed to another entity.
Percentage Of Equity Interest Contributed To Another Entity
Percentage of equity interest contributed to another entity
Debt Instrument, Interest Rate, Stated Percentage
Debt instrument stated interest rate percentage
RD Holdco Inc Common Equity [Member]
RD Holdco Inc Common Equity.
RD Holdco Inc Common Equity [Member]
SSLP Facility [Member]
SSLP Facility [Member]
Sslp Facility Member
Net Assets
Net assets at end of period
Net assets at beginning of period
Net assets
Total net assets
Net assets, end of period
Percentage of total net assets.
Percentage Of Total Net Assets
Percentage of total net assets
Assets under lease
Property, Plant, and Equipment, Lessor Asset under Operating Lease, after Accumulated Depreciation
Bayside Parent Llc Equity [Member]
Bayside Parent Llc Equity [Member]
Thrifts & Mortgage Finance [Member]
Thrifts and mortgage finance.
Thrifts and Mortgage Finance [Member]
Common Stock, Shares, Issued
Common stock, shares, issued
Asset Class [Domain]
Statement [Table]
Interest Receivable
Interest receivable
Valuation, Income Approach [Member]
Income Approach [Member]
Investment Company, Investment Income (Loss) from Operations, Per Share
Net increase in net assets resulting from operations
Payments to Acquire Businesses, Gross
Payment to acquire business
Investment Owned, Balance, Principal Amount
Par Amount
Trading Companies & Distributors [Member]
Trading companies and distributors.
Trading Companies and Distributors [Member]
Investment, Identifier [Axis]
Consumer Finance [Member]
Consumer finance.
Consumer Finance [Member]
Statement [Line Items]
Business Combination [Domain]
Nonconsolidated Investees, Other [Member]
Receivable for investments sold
Receivable, Investment, Sale
Pasadena Private Lending Inc. [Member]
Pasadena Private Lending Inc.
Pasadena Private Lending Inc. [Member]
Agreement [Domain]
Agreement [Domain]
Liabilities and Equity
Total liabilities and members' equity
Debt Instrument [Line Items]
Investment Interest Rate
Interest Rate
Noninterest Income
Other income
Service fees
Noninterest Income, Total
Industry Sector [Axis]
Metals and mining.
Metals and Mining [Member]
Metals & Mining [Member]
Summary of Investment Holdings [Line Items]
Pinnacle Fertility Inc. [Member]
Pinnacle fertility Inc.
Pinnacle Fertility, Inc. [Member]
Business Combination, Voting Equity Interest Acquired, Percentage
Percentage of voting interests acquired
US Government Securities, at Carrying Value
US government securities at carrying value
Shares Issued, Price Per Share
Shares issued, price per share
Shares Issued, Price Per Share
Subsequent Event [Line Items]
Credit facility one.
Credit Facility One [Member]
SPV Credit Facility [Member]
SPV Credit Facility [Member]
Long term debt one.
Long Term Debt One [Axis]
Investment Income, Interest
Interest
Interest income
Line of Credit Facility, Increase (Decrease), Net
Line of Credit Facility, Increase (Decrease), Net, Total
Credit facility were increased amount
Preferred equity.
Preferred Equity [Member]
Preferred Equity [Member]
Preferred Equity
Additional Paid in Capital, Common Stock
Paid-in capital in excess of par
Long term debt unamortized debt issuance costs
Debt Issuance Costs, Net
Long term debt unamortized debt issuance costs
Commitment funded amount.
Commitment Funded Amount
Commitment funded amount
Investment Maturity Date
Maturity Date
Investment, Variable Interest Rate, Type [Extensible Enumeration]
Significant Accounting Policies [Text Block]
Significant Accounting Policies
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Proceeds from Issuance of Secured Debt
Proceeds from secured borrowings
Health Care Technology [Member]
Health care technology.
Health Care Technology [Member]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Summary of Computation of Basic And Diluted Net
Equity Securities [Member]
Common Equity/Equity Interests/Warrants [Member]
Investment, Name [Axis]
Citi Bank NA.
Citi Bank NA [Member]
Citi Bank NA [Member]
Dividends Payable
Distributions payable
Earnings Per Share, Basic
Earnings per share, Basic
EARNINGS PER SHARE (see note 5), Basic
Increase (Decrease) in Management Fee Payable
Management fee payable
Agreements [Table]
Agreements [Table]
Treace Medical Concepts, Inc. [Member]
Treace Medical Concepts, Inc..
Investment Company, Expense Ratio after Incentive Allocation
Total expenses
Expenses.
Expenses [Abstract]
EXPENSES:
Repayments of Secured Debt
Repayment of secured borrowings
Investment Company, Total Return
Total Return
Revolving Credit Facility [Member]
Revolving Credit Facility [Member]
Other Ownership Interests, Contributed Capital
Other Ownership Interests, Contributed Capital
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]
Adjustments to reconcile net increase in net assets resulting from operations to net cash provided by operating activities:
Net change in unrealized gain loss on investments.
Net Change In Unrealized Gain Loss On Investments
Net change in unrealized (gain) loss on investments
Passenger Airlines [Member]
Passenger Airlines.
Passenger Airlines [Member]
Incentive Fee Expense
Incentive Fee Expense, Total
Performance-based incentive fees (see note 3)
Performance-based incentive fees
Dividends Payable, Date of Record
Quarterly distribution, date of record
Equipment financing.
Equipment Financing [Member]
Equipment Financing [Member]
Equipment Financing
Foundation consumer brands LLC.
Foundation Consumer Brands, LLC [Member]
Foundation Consumer Brands, LLC [Member]
Tax Basis of Investments, Gross, Unrealized Appreciation
Tax Basis of Investments, Gross, Unrealized Appreciation
SLR Business Credit [Line Item]
SLR Business Credit [Line Items]
Equipment backed leases and loans average exposure per customer.
Equipment Backed Leases and LoansAverage Exposure Per Customer
Equipment backed leases and loans average exposure per customer
SunMed group holdings LLC.
SunMed Group Holdings, LLC [Member]
SunMed Group Holdings, LLC [Member]
SLR Equipment Finance Equity [Member]
SLR Equipment Finance Equity.
SLR Equipment Finance Equity [Member]
SLR Credit Solution [Text Block]
SLR Credit Solution [Text Block]
SLR Credit Solutions
KBHT
KBHT [Member]
Equity, Attributable to Parent [Abstract]
Net Assets
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Summary of Changes in Fair Value of Level 3 Assets and Liabilities
Valuation, Market Approach [Member]
Market Approach [Member]
Retained Earnings (Accumulated Deficit)
Accumulated distributable net loss
Repayments of Unsecured Debt
Repayment of unsecured borrowings
Term loan.
Term Loan [Member]
Term Loan [Member]
Infillion Inc [Member]
Infillion Inc.
Infillion Inc. [Member]
Other Commitments [Line Items]
Industry Sector [Domain]
Bayside Opco L L C One [Member]
Bayside Opco L L C One [Member]
Two thousand and twenty two unsecured notes.
Two Thousand and Twenty Two Unsecured Notes [Member]
2022 Unsecured Notes [Member]
Road and rail.
Road and Rail [Member]
Road & Rail [Member]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of investmentsIn percentage.
Schedule Of InvestmentsIn percentage [Table]
Unfunded debt and equity commitments.
Unfunded Debt and Equity Commitments [Member]
Unfunded Debt and Equity Commitments [Member]
Unfunded Debt and Equity Commitments [Member]
Second Lien Asset Based Senior Secured Loans [Member]
Second lien asset based senior secured loans.
Second Lien Asset Based Senior Secured Loans
Debt Instrument, Payment Terms
Debt instrument payment terms
Debt and Equity Securities, Realized Gain (Loss)
Net realized gain (loss)
Net realized loss
Net realized gain (loss)
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Net Cash Provided by Operating Activities
Velocity One LLC [Member]
Velocity One, LLC
Velocity One, LLC [Member]
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description
Common Stock [Member]
Common Stock [Member]
Noninvestment Assets Less Noninvestment Liabilities
Fair value liabilities in excess of other assets
Performance Based Incentive Fees
Performance Based Incentive Fees
Performance based incentive fees
Spread [Domain]
TAUC management LLC.
TAUC Management LLC [Member]
TAUC Management, LLC [Member]
Sixteen Investment Portfolio Company [Member]
Sixteen investment portfolio company.
16 Portfolio Investment Company [Member]
Sightly Enterprises, Inc. [Member]
Sightly Enterprises, Inc.
Sightly Enterprises, Inc. [Member]
Kingsbridge Holdings, LLC.
Kingsbridge Holdings, LLC [Member]
Kingsbridge Holdings, LLC [Member]
Fair Value Hierarchy and NAV [Axis]
Earnings Per Share [Abstract]
Earnings Per Share [Abstract]
Earnings per share (basic & diluted)
Number of funded commitment.
Number Of Funded Commitment
Number of funded commitments
Supplemental Cash Flow Information [Abstract]
Supplemental disclosure of cash flow information:
Management Fee Expense
Management fees (see note 3)
Management fees
Investment Type [Axis]
Recourse debt.
Recourse Debt
Recourse debt
SLR Healthcare ABL Revolver [Member]
SLR healthcare ABL revolver.
SLR Healthcare ABL revolver [Member]
SUNS Company Merger [Member]
Income Taxes Paid, Net
Cash paid for interest
Collaborative Arrangement and Arrangement Other than Collaborative [Axis]
Increase (Decrease) in Payable for Investment Purchased
Payable for investments and cash equivalents purchased
Collaborative Arrangement and Arrangement Other than Collaborative [Domain]
Line of Credit Facility [Table]
Vapotherm Inc . Member
Vapotherm, Inc. [Member]
Vapotherm, Inc. [Member]
Investment Income, Investment Expense
Total expenses
Investments, Debt and Equity Securities [Abstract]
Capitalization of payment-in-kind income.
Capitalization Of Payment In Kind Income
Capitalization of payment-in-kind income
Valuation Approach and Technique [Axis]
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect
NET INCREASE IN CASH AND CASH EQUIVALENTS
Subsequent Event Type [Domain]
Common Stock, Par or Stated Value Per Share
Common stock, par or stated value per share
Par value
Investment company earnings distribution.
Investment Company Earnings Distribution
From net investment income
Liabilities [Abstract]
Liabilities
Base Rate [Member]
Restricted investment term.
Restricted Investment Term
Restricted investment term
Administrative Fees Expense
Administrative services expense (see note 3)
Administrative fees expense
WALCO Funding, LLC [Member]
WALCO Funding LLC [Member]
WALCO Funding LLC.
Equity method investment aggregate equity investment.
Equity Method Investment Aggregate Equity Investment
Equity method investment aggregate equity investment
Schedule of Stockholders Equity [Table Text Block]
Schedule of Stockholders Equity
Measurement Input, EBITDA Multiple [Member]
EBITDA Multiple [Member]
Investment Company, Expense, after Reduction of Fee Waiver and Reimbursement, Total
Net expenses
Realized Investment Gains (Losses), Total
Realized gain on investments
Net realized loss on investments and cash equivalents (companies less than 5% owned)
Net realized loss on investments and cash equivalents
Net realized loss
Seven Investment Portfolio Company [Member]
Seven investment portfolio company.
7 Portfolio Investment Company [Member]
Percentage of pre-incentive fee net investment income.
Percentage of Pre Incentive Fee Net Investment Income
Percentage of pre-incentive fee net investment income
Debt Instruments [Abstract]
Long term debt one.
Long Term Debt One [Domain]
Eleven Investment Portfolio Company [Member]
Eleven investment portfolio company.
11 Portfolio Investment Company [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases
Purchase of investment securities
Increase (decrease) in net assets.
Investment Company Increase Decrease In Net Assets
Total decrease in net assets
Investments in and Advances to Affiliates, at Fair Value, Gross Additions
Gross Additions
Asset Management [Member]
Asset Management [Member]
Veronica holdings, Llc (common equity).
Veronica Holdings, LLC (common equity) [Member]
Veronica Holdings, LLC (common equity) [Member]
Cash equivalents, at cost.
Cash Equivalents At Cost
Cash equivalents at cost
Increase decrease in payments to acquire investments.
Increase Decrease In Payments To Acquire Investments
Purchase of investments
Companies more than five percentage and less than twenty five percentage owned.
Companies More than Five Percentage and Less Than Twenty Five Percentage Owned [Member]
Companies 5% to 25% owned [Member]
Advisory Agreement (Member)
Advisory Agreement [Member]
Advisory Agreement [Member]
Schedule of Long-term Debt Instruments [Table]
Number of issuer in business credit.
Number Of Issuer In Business Credit
Number of issuers in business credit
Valuation approach market multiple.
Valuation Approach Market Multiple [Member]
Market Multiple [Member]
Quantcast corporation.
Quantcast Corporation [Member]
Quantcast Corporation [Member]
Copper river seafoods, Inc.
Copper River Seafoods, Inc. [Member]
Copper River Seafoods, Inc. [Member]
Noninvestment Asset Less Noninvestment Liability, Percent of Net Asset
Percentage liabilities in excess of other assets
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Interest payable and other credit facility related expenses.
Interest payable and other credit facility related expenses
Interest payable and other credit facility related expenses
The townsend company, llc.
The Townsend Company, LLC [Member]
The Townsend Company, LLC [Member]
Per share data.
Per Share Data [Abstract]
Per Share Data:
Investment Company, Investment Income (Loss) Ratio
Net investment income
Two thousand and twenty six unsecured notes.
Two Thousand And Twenty Six Unsecured Notes [Member]
2026 Unsecured Notes [Member]
2026 Unsecured Notes [Member]
Investment, Name [Domain]
Investment Owned, Balance, Shares
Shares/Units
Debt Issuance Costs, Gross
Debt issuance costs
Spread Six [Member]
Spread Six [Member]
Spread six.
Plastic management, llC
Plastic Management, LLC [Member]
Plastic Management, LLC [Member]
Net Investment Income [Abstract]
INVESTMENT INCOME:
Line of Credit Facility, Lender [Domain]
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Increase (Decrease) in Accrued Interest Receivable, Net
Interest receivable
Two Thousand And Twenty Eight Series H Unsecured Notes [Member]
Two thousand and twenty eight series H unsecured notes.
2028 Series H Unsecured Notes [Member]
Percentage of non qualifying assets in the portfolio of total assets.
Percentage of Non Qualifying Assets in the Portfolio of Total Assets
Percentage of non-qualifying assets in the portfolio of total assets
Other General and Administrative Expense
Other general and administrative expenses
Other general and administrative expenses
Diversified financial services.
Diversified Financial Services [Member]
Diversified Financial Services (includes SLR Credit Solutions, SLR Business Credit and SLR Healthcare ABL) [Member]
Bayside Parent Llc Loan [Member]
Bayside Parent Llc Loan [Member]
NMC senior credit facility.
NMC Senior Credit Facility [Member]
NMC Senior Credit Facility [Member]
All States ag parts, llc.
All States Ag Parts LLC [Member]
All States Ag Parts, LLC [Member]
Subsequent Event [Member]
Subsequent Event [Member]
Cash Equivalents at Fair Value
Cash equivalents at fair value
Cash equivalents at fair value.
Ardelyx, Inc. [Member]
Ardelyx Inc [Member]
Ardelyx inc.
Investment Owned And Cash Equivalents Percent Of Net Assets
Investment owned and cash equivalents percent of net assets.
Percentage representing total investments and cash equivalents
Measurement input type one.
Measurement Input Type One [Axis]
Fair Value Measurement Inputs and Valuation Techniques [Table]
Unsecured Debt
Unsecured Debt
Investment, Interest Rate, Paid in Kind
Investment interest rate, Paid in kind
Cash Equivalents Percent Of Net Assets
Cash equivalents percent of net assets.
Cash equivalents, percent of net assets
Pharmaceuticals [Member]
Pharmaceuticals.
Pharmaceuticals [Member]
Number of Loan in business credit.
Number Of Loan In Business Credit
Number of loans in business credit
10 Portfolio Investment Company [Member]
Ten Investment Portfolio Company [Member]
Ten investment portfolio company.
Percentage representing preferred equity in investments owned
Percentage Representing Preferred Equity in Investments Owned
Percentage representing preferred equity in investments owned.
Measurement Input, Recovery Analysis [Member]
Measurement input using recovery analysis into common stock.
Recovery Analysis [Member]
Other Commitments [Domain]
Debt Instrument, Unamortized Discount
Debt Instrument, Unamortized Discount
WMD Funding LLC [Member]
WMD Funding LLC [Member]
WMD Funding LLC.
Cash and Cash Equivalents [Domain]
Other Commitments [Table]
33 Across Inc. [Member]
Thirty three across Inc.
Thirty Three Across Inc. [Member]
Companies 5% to 25% owned [Member]
Companies Five Percentage To Twenty Five Percentage Owned [Member]
Companies Five Percentage To Twenty Five Percentage Owned [Member]
North Mill Capital LLC [Member]
North Mill Capital LLC [Member]
North Mill Capital LLC [Member]
Business Combination, Consideration Transferred
Business combination, consideration transferred
SLR Healthcare ABL Credit.
SLR Healthcare ABL Credit [Member]
SLR Healthcare ABL Credit [Member]
Software [Member]
Software.
Software [Member]
Implied Multiple [Member]
Measurement Input, Implied Multiple [Member]
Measurement input, implied multiple.
Debt Instrument, Maturity Date
Debt Instrument, Maturity Date
Debt instrument maturity date
Minimum [Member]
Minimum [Member]
Financial Instrument [Axis]
Investments in and Advances to Affiliates, at Fair Value, Gross Reductions
Gross Reductions
Gross Reductions
Fair Value, Inputs, Level 3 [Member]
Level 3 [Member]
Investment company percentage of holding.
Investment Company Percentage Of Holding
Investment Company Percentage of Holding
Investment Yield Percentage
Investment yield percentage.
Percentage representing investments on securities
Investment Company, Gain (Loss) on Investment, Per Share
Net realized and unrealized gain (loss)
Segment Reporting [Abstract]
Net change in unrealized gain (loss) on investments
Unrealized Gain (Loss) on Investments
Net change in unrealized gain (loss) on investments and cash equivalents
Net change in unrealized gain (loss)
Net change in unrealized (gain) loss on investments sddfdff
First Lien Life Science Senior Secured Loans [Member]
First lien life science senior secured loans.
First Lien Life Science Senior Secured Loans
Net asset value per share.
Net Asset Value Per Share [Abstract]
Net Asset Value Per Share [Abstract]
Bayside Opco L L C [Member]
Bayside Opco, LLC [Member]
Bayside Opco L L C [Member]
Management and Service Fees, Incentive Rate
Percentage of incentive fee
Commitments and Contingencies
Commitments and contingencies
Commitments and contingencies (see note 9)
SLR healthcare ABL.
SLR Healthcare ABL [Text Block]
SLR Healthcare ABL
Change in unrealized gain loss on investments and cash equivalents.
Change In Unrealized Gain Loss On Investments And Cash Equivalents [Abstract]
Net change in unrealized gain (loss) on investments and cash equivalents:
Shoes for Crews Global, LLC [Member]
Shoes for Crews Global, LLC [Member]
Shoes for crews global, llC.
Debt Instrument, Basis Spread on Variable Rate
Debt instrument variable interest rate spread
Proceeds from Issuance of Unsecured Debt
Proceeds from unsecured borrowings
Proceeds from unsecured borrowings
US Treasury Bill Securities [Member]
US Treasury Bill [Member]
Performance based incentive fees waiver.
Performance Based Incentive Fees Waiver
Equity method investment aggregate investment in investee leases and loans held.
Equity Method Investment Aggregate Investment In Investee Leases and Loans held
Equity method investment aggregate investment in investee leases and loans held
SLR Business Credit Facility
SLR Business Credit Facility [Member]
SLR Business Credit Facility [Member]
Investment company interest and other credit facility expenses ratio after incentive allocation.
Investment Company Interest And Other Credit Facility Expenses Ratio After Incentive Allocation
Interest and other credit facility expenses
Line of Credit Facility [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Net income
Net increase in net assets resulting from operations
Investment company operating expenses ratio after incentive allocation.
Investment Company Operating Expenses Ratio After Incentive Allocation
Operating expenses
Pre-incentive fee net investment income Quarter hurdle rate.
Pre Incentive Fee Net Investment Income Quarter Hurdle Rate
Pre-incentive fee net investment income Quarter hurdle rate
Long-term Debt, Type [Domain]
Percentage representing senior secured loans in investments owned.
Percentage Representing Senior Secured Loans In Investments Owned
Percentage representing senior secured loans in investments owned
Weighted Average Number of Shares Outstanding, Basic
Denominator - weighted average shares, Basic
Net Assets [Member]
Net Assets [Member]
Description of fair value measurement valuation process.
Description Of Fair Value Measurement Valuation Process
Principal Valuation Technique/Methodology
Internet Software & Services [Member]
Internet software and services.
Internet Software and Services [Member]
Investment, Interest Rate, Floor
Floor
Gross income.
Gross Income
Gross income
Interest Payable
Interest payable (see note 7)
Communications Equipment [Member]
Communications equipment.
Communications Equipment [Member]
Subsequent Events [Text Block]
Subsequent Events
Airlines [Member]
Airlines.
Airlines [Member]
ASC Holdco LLC [Member]
ASC Holdco LLC [Member]
Total
Long term debt
Debt ($1,158,850 and $1,183,250 face amounts, respectively, reported net of unamortized debt issuance costs of $4,497 and $5,473, respectively. See note 7)
Long-Term Debt
Auto Components [Member]
Auto components.
Auto Components [Member]
Cash
Cash
Variable Rate [Domain]
Payments to Acquire Investments
Payments to acquire investments
Payments to Acquire Investments
Property Subject to or Available for Operating Lease, Number of Units
Number of funded equipment-backed leases and loans
Investment Company, Investment Owned, Measurement Input
Long Term Investments Measurement Input
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
O 2025 Q3 Dividends [Member]
O 2025 Q3 Dividends [Member]
O 2025 Q3 Dividends.
Equity Method Investments
Equity method investments
Senior-secured commitments [Member].
Senior Secured Commitments [Member]
Senior Secured Commitments [Member]
Debt, Long-term and Short-term, Combined Amount
Debt ($1,145,443 and $1,154,436 face amounts, respectively, reported net of unamortized debt issuance costs of $7,236 and $8,082, respectively. See note 7)
Debt outstanding ($96,500 and $94,500 face amounts, respectively, reported net of unamortized debt issuance costs of $1,748 and $1,843, respectively)
Valuation Approach and Technique [Domain]
Cash Equivalents [Member]
Increase (Decrease) in Operating Assets [Abstract]
(Increase) decrease in operating assets:
RxSense holdings LLC.
RxSense Holdings LLC [Member]
RxSense Holdings LLC [Member]
Schedule of Equity Method Investments [Table]
Health care equipment and supplies.
Health Care Equipment and Supplies [Member]
Health Care Equipment & Supplies [Member]
Net Investment in Lease, before Allowance for Credit Loss
Net investment in lease
Percentage representing total investments in investments owned
Percentage Representing Total Investments in Investments Owned
Percentage representing total investments in investments owned.
Two thousand and twenty two tranche C notes.
Two Thousand And Twenty Two Tranche C Notes [Member]
2022 Tranche C Notes [Member]
Over-Allotment Option [Member]
Over-Allotment Option [Member]
SPR Therapeutics, Inc. [Member]
SPR Therapeutics, Inc.
SPR Therapeutics, Inc. [Member]
Fair Value Disclosures [Text Block]
Fair Value
Dividends Payable, Date Declared
Dividends Payable, Date Declared
Dividends Receivable
Dividends receivable
SLR Senior Lending Program SPV LLC member.
SLR Senior Lending Program SPV LLC [Member]
SLR Senior Lending Program SPV LLC [Member]
Two Thousand And Twenty Seven Series G Unsecured Notes [Member]
Two thousand and twenty seven series g unsecured notes.
2027 Series G Unsecured Notes [Member]
Investments at fair value:
Investment Owned, at Fair Value
Ending balance
Beginning balance
Fair Value
Investments at fair value (cost $187,607 and $180,681, respectively)
Investment Holdings.
Investment Holdings [Domain]
Accrued Liabilities and Other Liabilities
Other liabilities and accrued expenses
Prepaid Expense and Other Assets
Prepaid expenses and other assets
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]
Slrami Topco Blocker Llc [Member]
SLR-AMI Topco Blocker, LLC [Member]
Line Of Credit Facility Commitments Amount
Line Of Credit Facility Commitments Amount
Line of credit facility commitments amount
Health care providers and services.
Health Care Providers and Services [Member]
Health Care Providers & Services [Member]
Fast Pay Partners LLC [Member].
Fast Pay Partners LLC [Member]
Fast Pay Partners LLC [Member]
Interest Expense
Interest and other credit facility expenses (see note 7)
Interest and other credit facility expenses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Credit Facility [Axis]
Equity Method Investment, Ownership Percentage
Equity method investment, ownership percentage
Condensed Financial Statements [Table Text Block]
Summary Financial Information for SSLP
Schedule of Investments [Line Items]
SLR Equipment Finance Debt [Member]
SLR Equipment Finance Debt.
SLR Equipment Finance Debt [Member]
Investment Owned At Cost And Cash Equivalents Carrying Value
Investment owned at cost and cash equivalents carrying value.
Total Investments & Cash Equivalents cost
Investment Tranche Spread Five Hundred And Fifty Member [Member]
Investment tranche spread five hundred and fifty.
Spread S+550 [Member]
Other Long-term Debt
Other long term debt
Related Party [Axis]
Line of Credit Facility, Average Outstanding Amount
Line of credit facility average outstanding amount
Agreement [Line item]
Agreement [Line Items]
Wilbur Ellis Holdings II LLC [Member]
Wilbur-Ellis Holdings II LLC.
Wilbur-Ellis Holdings II, LLC [Member]
Percentage Of Cumulative Net Realized Gain And Unrealized Capital Appreciation
Percentage Of Cumulative Net Realized Gain And Unrealized Capital Appreciation
Percentage of cumulative net realized gain and unrealized capital appreciation
Internet and catalog retail.
Internet and Catalog Retail [Member]
Internet & Catalog Retail [Member]
Other Commitments [Axis]
Stock Repurchased During Period, Shares
Stock Repurchased During Period, Shares
Shares repurchased, Shares
Repurchases of common stock
Share activity, shares
Long-term Debt, Weighted Average Interest Rate, over Time
Long term debt weighted average interest over a period of time
Number of Reportable Segments
Number of reporting segment
Credit Facility [Domain]
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]
Measurement Input Comparable Multiple [Member]
Measurement Input Comparable Multiple [Member]
Comparable Multiple [Member]
Long-term Debt, Gross
Face Amount
Loyer Capital LLC [Member]
Loyer capital llc.
Loyer Capital LLC [Member]
Stella & Chewy's LLC [Member]
Stella & chewy's Llc.
Stella & Chewy's, LLC [Member]
Investments owned industry name.
Investments Owned Industry Name
Industry
Food Products [Member]
Food products.
Food Products [Member]
Measurement Input Type [Domain]
Investment, Acquisition Date
Acquisition Date
Investment Owned, at Cost
Cost
Investment owned, at cost
Measurement input return on equity.
Measurement Input Return on Equity [Member]
Return on Equity [Member]
Stockholders' Equity Note [Abstract]
Omniguide Holdings, Inc [Member]
Omniguide Holdings, Inc [Member]
Omniguide Holdings, Inc.
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
CASH AND CASH EQUIVALENTS AT END OF PERIOD
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD
Accounts Payable and Accrued Liabilities
Accrued expenses and other payables
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Investment Company, Expense Ratio Excluding Incentive Fee
Investment company, expense ratio excluding incentive fee
Summary of Investment Holdings [Table]
Construction and engineering.
Construction and Engineering [Member]
Construction & Engineering [Member]
Equity Method Investments and Joint Ventures [Abstract]
Management and Service Fees, Base Rate
Annual management fee percentage
Title of Individual [Axis]
Fair Value Hierarchy and NAV [Domain]
EyeSouth Eye Care Holdco LLC [Member]
Eyesouth Eye Care Holdco LLC [Member]
Eyesouth Eye Care Holdco LLC.
Statement of Financial Position [Abstract]
Machinery.
Machinery [Member]
Machinery [Member]
Spread Two [Member]
Spread Two [Member]
Spread two.
Line of Credit [Member]
Line of Credit [Member]
Percentage representing common equity or equity interests or warrants owned
Percentage Representing Common Equity Or Equity Interests Or Warrants Owned
Percentage representing common equity or equity interests or warrants owned.
Personal Products [Member]
Personal products.
Personal Products [Member]
ESP SSC Corporation [Member]
ESP SSC Corporation [Member]
ESP SSC Corporation [Member]
Investment Holdings.
Investment Holdings [Axis]
Liabilities
Total liabilities
Financial Instruments [Domain]
collateral agent.
Collateral Agent [Axis]
Number of Customers.
Number Of Customers
Number of Customers
Energy Equipment & Services [Member]
Energy equipment and services.
Energy Equipment and Services [Member]
Variable Rate [Axis]
Weighted Average Number of Shares Outstanding, Diluted
Denominator-weighted average shares, Diluted
SLR Business Credit revolver [Member]
SLR Business Credit revolver.
SLR Business Credit revolver [Member]
Net asset value per share.
Net Asset Value Per Share [Text Block]
Net Asset Value Per Share
Two thousand and twenty seven unsecured notes.
Two Thousand And Twenty Seven Unsecured Notes [Member]
2027 Unsecured Notes [Member]
Schedule of investments in percentage Abstract .
Schedule Of Investments In percentage [Abstract]
Schedule Of Investments In percentage [Abstract]
Tax Basis of Investments, Gross, Unrealized Depreciation
Tax Basis of Investments, Gross, Unrealized Depreciation
Measurement Input Type [Axis]
Investment Company, Realized and Unrealized Gain (Loss) on Investment and Foreign Currency [Abstract]
REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS AND CASH EQUIVALENTS:
Investments [Domain]
Increase decrease receivable for investments sold.
Increase Decrease Receivable For Investments Sold
Receivable for investments sold
Sale of Stock [Domain]
Segment Reporting Disclosure [Text Block]
Segment Reporting
Spread Ten [Member]
Spread Ten [Member]
Spread ten.
Tax Basis of Investments, Cost for Income Tax Purposes
Investment Owned tax costs
Stock Issued During Period, Shares, Acquisitions
Stock issued during period, shares, acquisitions
Description of significant unobservable input used.
Description of Significant Unobservable Input Used
Unobservable Input
Kaseya, Inc. [Member]
Kaseya inc.
Kaseya Inc [Member]
Kaseya Inc [Member]
Subsequent Event [Table]
Asset Management and Custody Banks [Member]
Asset management and custody banks.
Asset Management & Custody Banks [Member]
High Street Buyer, Inc. [Member]
High street buyer inc.
High Street Buyer Inc [Member]
Investment Income, Dividend
Dividends
Spread Nine [Member]
Spread Nine [Member]
Spread nine.
Sale of stock, remaining amount available for issuance and sale
Sale Of Stock Remaining Stock Available For Issuance Amount
Sale of stock remaining stock available for issuance amount.
Investment company operating expense ratio excluding incentive fee.
Investment Company Operating Expense Ratio Excluding Incentive Fee
Investment Company Operating Expense Ratio Excluding Incentive Fee
Stock Repurchase Program Expiration Date
Stock repurchase program expiration date
Line of Credit Facility, Interest Rate During Period
Line of Credit Facility, Interest Rate During Period
RD Holdco Inc Class B [Member]
RD Holdco Inc Class B.
RD Holdco Inc Class B [Member]
Long term debt maximum amount borrowed during the period.
Long Term Debt Maximum Amount Borrowed During The Period
Long term debt maximum amount borrowed during the period
Other Commitments [Table Text Block]
Summary of unfunded debt and equity commitments
Streamland Media Holdings LLC [Member]
Streamland Media Holdings LLC [Member]
Streamland Media Holdings LLC
Schedule of Investments [Table]
Recent Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Valuation technique recovery approach.
Valuation Technique Recovery Approach [Member]
Recovery Analysis [Member]
Investment Company, Dividend Distribution
Net distributions to stockholders
Total distributions
Total distributions
Investment Owned And Cash Equivalents Fair Value
Investment Owned And Cash Equivalents Fair Value
Total Investments & Cash Equivalents Fair value
Fertilizers and agricultural chemicals.
Fertilizers & Agricultural Chemicals [Member]
Fertilizers & Agricultural Chemicals [Member]
Two thousand and twenty three unsecured notes.
Two Thousand And Twenty Three Unsecured Notes [Member]
2023 Unsecured Notes [Member]
Investment Company, Portfolio Turnover
Portfolio turnover ratio
Companies more than 5% Less Than 25% owned [Member]
Companies more than 5% Less Than 25% owned [Member]
Investment Holdings, Schedule of Investments [Table Text Block]
SSLP Portfolio
SOINT LLC [Member]
Soint llc.
SOINT LLC [Member]
O 2025 Q4 Dividends [Member]
O 2025 Q4 Dividends.
O 2025 Q4 Dividends [Member]
Specialty Retail [Member]
Specialty retail.
Specialty Retail [Member]
Percentage of equity interest acquired from the management team.
Percentage Of Equity Interest Acquired From The Management Team
Percentage of equity interest acquired from the management team
Common Stock, Shares, Outstanding
Shares outstanding, end of period
Common stock, shares, outstanding
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Long-Term Debt, Average Amount Outstanding
Average debt outstanding
Agreements [Abstract]
Agreements [Abstract]
Dividends [Domain]
Spread Five [Member]
Spread Five [Member]
Spread five.
Professional services.
Professional Services [Member]
Professional Services [Member]
Southern orthodontic partners management LLC.
Southern Orthodontic Partners Management LLC [Member]
Southern Orthodontic Partners Management, LLC
Spread Four [Member]
Spread Four [Member]
Spread four.
ReFocus Management Services LLC [Member]
ReFocus Management Services LLC.
Crystal capital financial holdings LLC.
Crystal Capital Financial Holdings LLC [Member]
Payments for Repurchase of Common Stock
Repurchase of common stock
Schedule of Investments [Abstract]
Schedule of Investments [Abstract]
NM Holdco [Member].
NM Holdco [Member]
NM Holdco [Member]
Statement of Cash Flows [Abstract]
Hotels, Restaurants & Leisure [Member]
Hotels, restaurants and leisure.
Hotels, Restaurants and Leisure [Member]
Stockholders' Equity Note Disclosure [Text Block]
Stock Repurchase Program
Equipment backed leases and loans largest position outstanding.
Equipment Backed Leases And Loans Largest Position Outstanding
Equipment backed leases and loans largest position outstanding
Earnings Per Share [Text Block]
Earnings Per Share
SPAR Marketing Force, Inc. [Member]
SPAR marketing force, Inc.
SPAR Marketing Force, Inc. [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Closing balance
Opening balance
Net increase in net assets resulting from operations
Net income (loss)
Non Cash Purchase and Disposition of investments
Non Cash Purchase and Disposition of investments
Non-cash purchase and disposition of investments
RD Holdco Inc Debt [Member]
Derivative, Floor Interest Rate
Floor
Payments of Distributions to Affiliates
Cash distributions paid
Investment, Basis Spread, Variable Rate
Spread Above Index
Percentage representing equipment financing in investments owned.
Percentage Representing Equipment Financing in Investments Owned
Percentage representing equipment financing in investments owned
Tilley Distribution, Inc. [Member]
Tilley distribution, inc.
Tilley Distribution Inc [Member]
Line of Credit Facility [Line Items]
Represents the amount of distributions to stockholders return of capital.
Investment Company Return Of Capital Distribution
From return of capital
Return of capital
Line of credit maximum borrowing capacity and debt instrument face value.
Line Of Credit Maximum Borrowing Capacity And Debt Instrument Face Value
Line of credit maximum borrowing capacity and debt instrument face value
Assets
Assets [Abstract]
Increase (Decrease) in Prepaid Expense and Other Assets
Prepaid expenses and other assets
Deferred financing costs/market discount amortization
Amortization of Debt Issuance Costs and Discounts
Two Thousand And Twenty Eight Series I Unsecured Notes [Member]
Two thousand and twenty eight series I unsecured notes.
2028 Series I Unsecured Notes [Member]
Percentage representing investments on securities.
Percentage Representing Investments On Securities
Percentage representing investments on securities
Percentage of excise tax.
Percentage Of Excise Tax
Percentage of excise tax
Urology Management Holdings, Inc. [Member]
Urology Management Holdings, Inc.
Urology Management Holdings Inc [Member]
SLR Business Credit [Member]
SLR Business Credit [Member]
SLR Business Credit.
Veronica holdings, Llc (preferred equity).
Veronica Holdings, LLC (preferred equity) [Member]
Veronica Holdings, LLC (preferred equity) [Member]
Two thousand and twenty five unsecured notes.
Two Thousand And Twenty Five Unsecured Notes [Member]
2025 Unsecured Notes [Member]
2025 Unsecured Notes [Member]
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
SLR Senior Lending Program LLC
Transportation Infrastructure [Member]
Transportation infrastructure.
Transportation Infrastructure [Member]
Derivative, Maturity Date
Maturity Date
Agreement [Axis]
Agreement [Axis]
BDG Media, Inc. [Member]
BDG media, Inc.
BDG Media, Inc. [Member]
Net Investment Income
Net investment income
Net investment income
Fair Value Disclosures [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Prepaid Expense
Prepaid Expense
Schedule of investments In percentage lineItems.
Schedule Of Investments In percentage [Line Items]
Investment Company, Distribution to Shareholders, Per Share
From distributable earnings
Members' Equity
Members' equity
Investment Owned, Percent of Net Assets
Percentage of Total Investments (at fair value)
Percentage representing net assets in investments owned
Long-term Line of Credit
SPV Credit Facility, Carrying Value
Long-term line of credit
Long-Term Line of Credit, Total
Pre-incentive fee net investment income annual hurdle rate.
Pre Incentive Fee Net Investment Income Annual Hurdle Rate
Pre-incentive fee net investment income Annual hurdle rate
Percentage representing total investments and cash equivalents in investments owned
Percentage Representing Total Investments and Cash Equivalents in Investments Owned
Percentage representing total investments and cash equivalents in investments owned.
Sale of Stock [Axis]
US Government Securities At Fair Value
US government securities at fair value.
US government securities at fair value
Increase (Decrease) in Operating Liabilities [Abstract]
Increase (decrease) in operating liabilities:
Debt Instrument, Fair Value Disclosure
Debt Instrument, Fair Value Disclosure
Equity Method Investments and Joint Ventures Disclosure [Text Block]
SLR Equipment Finance
Kingsbridge Holdings, LLC
Equipment Operating Leases LLC [Member]
Equipment operating leases llc,
Equipment Operating Leases LLC [Member]
Credit Facility.
Credit Facility [Member]
Credit Facility [Member]
Private Placement [Member]
Private Placement [Member]
Payable, Investment, Purchase
Payable for investments and cash equivalents purchased
Transaction Price [Member]
Measurement Input, Transaction Price [Member]
Measurement input using price per share at which transaction can be converted into common stock.
Employee-related Liabilities
Performance-based incentive fee payable (see note 3)
Term loan and credit facility.
Term Loan And Credit Facility [Member]
Credit Facility [Member]
SLRCTerm Loan And Credit Facility [Member]
Investment Income, Net
Net investment income
Condensed Financial Statements, Captions [Line Items]
Related Party [Domain]
Black scholes pricing model.
Black Scholes Pricing Model [Member]
Black-Scholes Model [Member]
Five Investment Portfolio Company [Member]
Five investment portfolio company.
5 Portfolio Investment Company [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Table]
Collaborative Arrangement and Arrangement Other than Collaborative [Table]
Equity Method Investment, Aggregate Cost
Equity method investment, aggregate cost
SunMed Receivables I, LLC [Member]
SunMed Receivables I, LLC.
Investment in senior secured loans.
Investment in Senior Secured Loans [Member]
Senior Secured Loans [Member]
Southern Lifting and Hoisting, LLC [Member]
Southern Lifting and Hoisting, LLC.
Southern Lifting and Hoisting, LLC [Member]
Fair Value, Recurring and Nonrecurring [Table]
Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities
Other liabilities and accrued expenses
United Digestive MSO parent, llc.
United Digestive MSO Parent, LLC [Member]
United Digestive MSO Parent, LLC [Member]
Measurement Frequency [Domain]
Stock Repurchase Program, Authorized Amount
Stock repurchase program, authorized amount
Debt and Equity Securities, Unrealized Gain (Loss), Total
Debt and Equity Securities, Unrealized Gain (Loss)
Net change in unrealized gain (loss)
Change in unrealized gain (loss)
Equity Distribution Agreement [Member]
Equity distribution agreement member.
Equity Distribution Agreement [Member]
Condensed Financial Statements [Table]
Ground Transportation [Member]
Ground transportation.
Ground Transportation [Member]
4 Portfolio Investment Company [Member]
Four Investment Portfolio Company [Member]
Four investment portfolio company.
Subsequent Event Type [Axis]
RD Holdco Inc Class C [Member]
RD Holdco Inc Class C [Member]
RD Holdco Inc Class C [Member]
Automobile Components [Member]
Automobile components.
Automobile Components [Member]
Investment Company, Financial Highlights [Abstract]
Broadline Retail [Member]
Broadline retail.
Broadline Retail [Member]
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]
Cash Flows from Financing Activities:
Percentage representing cash equivalents in investments owned
Percentage Representing Cash Equivalents in Investments Owned
Percentage representing cash equivalents in investments owned.
Fair Value, Recurring [Member]
Recurring Fair Value [Member]
Schedule of Equity Method Investments [Line Items]
Two thousand and twenty seven series F unsecured notes.
Two Thousand And Twenty Seven Series F Unsecured Notes [Member]
2027 Series F Unsecured Notes [Member]
2027 Series F Unsecured Notes [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Alkeme Intermediary Holdings, LLC
Alkeme Intermediary Holdings, LLC [Member]
Alkeme Intermediary Holdings Llc.
OIS Management Services, LLC [Member]
OIS Management Services, LLC.
OIS Management Services, LLC [Member]
Spread Eight [Member]
Spread eight.
Spread Eight [Member]
Interest and Dividend Income, Securities, Operating
Interest and Dividend Income, Securities, Operating, Total
Interest/ Dividend/ Other Income
Equity Components [Axis]
Equity Components [Axis]
Measurement input market yield.
Measurement Input Market Yield [Member]
Market Yield [Member]
Erie Construction mid-west LLC.
Erie Construction Midwest LLC [Member]
Erie Construction Mid-west, LLC [Member]
Equity Component [Domain]
Equity Component [Domain]
Asset Class [Axis]
collateral agent.
Collateral Agent [Domain]
Diversified Consumer Services [Member]
Diversified consumer services.
Diversified Consumer Services [Member]
Investment Company, Financial Highlights [Text Block]
Financial Highlights
Increase decrease in investment income amortization of discount.
Increase Decrease In Investment Income Amortization Of Discount
Net accretion of discount on investments
Biotechnology [Member]
Biotechnology.
Biotechnology [Member]
Spread One [Member]
Spread One [Member]
Spread one.
2028 Series J Unsecured Notes [Member]
Two Thousand And Twenty Eight Series J Unsecured Notes [Member]
Two thousand and twenty eight series J unsecured notes.
Capital share transactions.
Capital Share Transactions [Text Block]
Capital Share Transactions
Business Combination [Axis]
Investment Owned At Fair Value Abstract
Investment Owned At Fair Value [Abstract]
Investments at fair value:
IPO [Member]
IPO [Member]
Investment Company, Investment Income (Loss), Per Share, Basic
Net investment income
Measurement input recoverable amount.
Measurement Input Recoverable Amount [Member]
Recoverable Amount [Member]
Consumer Staples Distribution And Retail [Member]
Consumer staples distribution and retail member.
Consumer Staples Distribution & Retail [Member]
Increase (Decrease) in Dividends Receivable
Dividends receivable
Webster bank, N.A.'s commercial services division.
Webster Bank, N.A.'s Commercial Services Division [Member]
Webster Bank, N.A.'s Commercial Services Division [Member]
Line of credit and term loan outstanding.
Line Of Credit And Term Loan Outstanding
Credit Facility, Carrying Value
Line of credit and term loan outstanding
First Lien Bank Debt/ Senior Secured Loans
First Lien Bank Debt and Senior Secured Loans [Member]
First lien bank debt and senior secured loans.
Maximum [Member]
Maximum [Member]
Dividends Payable, Date to be Paid
Quarterly distribution, payable date
Tax Basis of Investments, Unrealized Appreciation (Depreciation), Net
Tax Basis of Investments, Unrealized Appreciation (Depreciation), Net
Net unrealized appreciation
Investment, Tax Basis, Unrealized Gain (Loss), Total
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Common Stock, Value, Issued
Common stock, par value $0.01 per share, 200,000,000 and 200,000,000 common shares authorized, respectively, and 54,554,634 and 54,554,634 shares issued and outstanding, respectively
Senior Secured Loans [Member]
Senior secured loans.
Line of Credit Facility, Expiration Date
Line of credit facility, expiration date
Dividends [Axis]
Secured Overnight Financing Rate [Member]
Secured Overnight Financing Rate (SOFR) [Member]
O 2026 Q2 Dividends [Member]
O 2026 Q2 Dividends [Member]
O 2026 Q2 Dividends.
Investment Company, Financial Ratios [Abstract]
Ratios to average net assets:
Capital Markets [Member]
Capital markets.
Capital Markets [Member]
Securities Investment [Member]
Long-term Debt, Term
Long term debt term
Spread [Axis]
SLR Business Credit Disclosure TextBlock
SLR Business Credit Disclosure [Text Block]
SLR Business Credit
Commercial services and supplies.
Commercial Services and Supplies [Member]
Commercial Services & Supplies [Member]
Lender Name [Axis]
Life sciences tools and services.
Life Sciences Tools and Services [Member]
Life Sciences Tools & Services [Member]
Crystal Financial(Member)
Crystal Financial [Member]
Crystal Financial [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Debt Disclosure [Text Block]
Debt
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net
Transfers in/out of Level 3
Administrative services payable.
Administrative Services Payable
Administrative services payable (see note 3)
CVAUSA management LLC.
CVAUSA Management, LLC [Member]
CVAUSA Management, LLC [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Two Thousand And Forty Two Unsecured Notes [Member]
2042 Unsecured Notes [Member]
Two Thousand And Forty Two Unsecured Notes Member
Companies more than twenty five percentage owned.
Companies More Than Twenty Five Percentage Owned [Member]
Companies more than 25% owned [Member]
Subsequent Events [Abstract]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Measurement Frequency [Axis]
Investment company performance based incentive fees waived.
Investment Company Performance Based Incentive Fees Waived
Performance-based incentive fees waived (see note 3)
Media [Member]
Media.
Media [Member]
Sherwood Management Co Inc [Member]
Sherwood management co Inc .
Sherwood Management Co., Inc. [Member]
Stock Repurchased During Period, Value
Stock Repurchased During Period, Value
Repurchases of common stock
Shares repurchased, Value
Share activity, value
Two thousand and twenty four unsecured notes.
Two Thousand And Twenty Four Unsecured Notes [Member]
2024 Unsecured Notes [Member]
2024 Unsecured Notes [Member]
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]
Summary of Quantitative Information about the Company's Level 3 Asset and Liability
Liability Class [Axis]
SLR healthcare ABL.
SLR Healthcare ABL [Member]
SLR Healthcare ABL [Member]
SLR Healthcare ABL [Member]
NS and Associates LLC [Member]
NS and Associates LLC
NS and Associates LLC [Member]
Thirteen Investment Portfolio Company [Member]
13 Portfolio Investment Company [Member]
Thirteen investment portfolio company.
Net asset value, end of period
Net asset value, beginning of year
Net asset value per share
Net Asset Value Per Share
Western Veterinary Partners LLC [Member]
Western veterinary partners LLC.
Western Veterinary Partners LLC [Member]
Assets
Assets
Total assets
Total assets
Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Income Statement [Abstract]
6 Investment Portfolio Company [Member]
Six Investment Portfolio Company [Member]
Six investment portfolio company.
Common Equity Equity Interests And Warrants [Member]
Common equity equity interests and warrants.
Common Equity/Equity Interests/Warrants [Member]
Weighted Average [Member]
SLR Business Credit [Table]
SLR Business Credit [Table]
Southern Transport LLC [Member]
Southern Transport LLC.
Southern Transport LLC [Member]
Stock Issued During Period, Shares, New Issues
Stock issued during period, shares
Issuance of common stock
Term Loans [Member]
Term Loans [Member]
Term Loans Member
Companies Less Than Five Percentage Owned [Member]
Companies Less Than Five Percentage Owned [Member]
Companies less than 5% owned [Member]
Earnings Per Share, Diluted
Earnings per share, Diluted
EARNINGS PER SHARE (see note 5), Diluted
Title of Individual [Domain]
NMC's credit facility [Member].
NMCs Credit Facility [Member]
NMCs Credit Facility [Member]
Lyneer Staffing Solutions, LLC [Member]
Lyneer Staffing Solutions LLC [Member]
Lyneer Staffing Solutions, LLC.
Investment, interest rate, paid in cash
Investment, Interest Rate, Paid in Cash
Cogent Biosciences Inc.[Member]
Cogent Biosciences, Inc.
Cogent Biosciences, Inc. [Member]
Debt Instrument, Face Amount
Debt instrument, face amount
Debt instrument face value
Line of Credit Facility, Maximum Borrowing Capacity
Line of credit facility, maximum borrowing capacity
Disclosure of Agreements.
Agreements [Text Block]
Agreements
Multi-sector holdings.
Multi Sector Holdings [Member]
Multi-Sector Holdings (includes Kingsbridge Holdings, LLC and SLR Equipment Finance) [Member]
Percentage of outstanding voting securities of the investment.
Percentage of Outstanding Voting Securities of the Investment
Percentage of outstanding voting securities of the investment
Investment Company, Tax Return of Capital Distribution, Per Share
From return of capital
Investor [Member]
Investor [Member]
Measurement input type one.
Measurement Input Type One [Domain]
Increase decrease in administrative services expense payable.
Increase Decrease In Administrative Services Expense Payable
Administrative services expense payable
SUNS [Member].
SUNS [Member]
SUNS [Member]
SLR Senior Lending Program LLC
SLR Senior Lending Program LLC [Member]
SLR Senior Lending Program LLC [Member]
SLR Senior Lending Program LLC [Member]
Senior Secured Notes [Member]
Senior Secured Notes [Member]
Senior Secured Notes Member
Investment Company, Financial Support to Investee Contractually Required, Not Provided, Amount
Unfunded commitments
Cash and Cash Equivalents [Axis]
Non-Rule 10b51 Arr Modified [Flag]
Non rule 10b51 arrangement modified flag.
Non-Rule 10b5-1 Arrangement Modified
Collections of payment-in-kind income.
Collections Of Payment In Kind Income
Collections of payment-in-kind income
Fair value measurement with unobservable inputs reconciliation basis realized gain loss included in earnings.
Fair Value Measurement With Unobservable Inputs Reconciliation Basis Realized Gain Loss Included In Earnings
Net realized loss
Net realized gain (loss)
Insurance [Member]
Insurance.
Insurance [Member]
Cc sag holdings corp. (spectrum automotive).
CC SAG Holdings Corp. (Spectrum Automotive) [Member]
CC SAG Holdings Corp. (Spectrum Automotive) [Member]
Fair Value, Inputs, Level 1 [Member]
Level 1 [Member]
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Net Cash Used in Financing Activities
Investment Company Net Assets From Operation Increase Decrease
Investment Company Net Assets From Operation Increase Decrease [Abstract]
Investment Company Change in Net Assets
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)
Net change in unrealized gain (loss)
Investment Owned, Face Amount
Par Amount
Spread Seven [Member]
Spread Seven [Member]
Spread seven.
Management Fee Payable
Management fee payable (see note 3)
Increase (Decrease) in Incentive Fee Payable
Performance-based incentive fee payable
Investments, Fair Value Disclosure, Total
Investments, Fair Value Disclosure
Investments at fair value
Assets
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales
Proceeds from dispositions of investment securities
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest [Abstract]
Increase (decrease) in net assets resulting from operations:
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]
Cash Flows from Operating Activities:
Investment Company, Distribution to Shareholders [Abstract]
Distributions to stockholders:
Measured at net asset value.
Measured at Net Asset Value [Member]
Fair value of common stock per share.
Fair Value Of Common Stock Per Share
Per share market value, end of period
Fair value of common stock per share
Aerospace and defense.
Aerospace and Defense [Member]
Aerospace & Defense [Member]
Cash Equivalents, at Carrying Value
Cash Equivalents, at Carrying Value, Total
Cash equivalents, at Cost
Cash equivalents (cost: $388,944 and $348,585, respectively)
Equity Investment Interest Rate
Equity investment interest rate.
Interest Rate
Line of credit facility maximum borrowing capacity with accordion feature.
Line Of Credit Facility Maximum Borrowing Capacity with Accordion Feature
Line of credit facility maximum borrowing capacity with accordion feature
Share price
senior secured revolving credit facility member.
Senior Secured Revolving Credit Facility [Member]
Senior Secured Revolving Credit Facility [Member]
Long-term Debt, Type [Axis]
Debt instrument term
Debt Instrument, Term
BH Topco LLC (Kingsbridge) [Member]
Kbh topco llc (kingsbridge).
KBH Topco LLC (Kingsbridge) [Member]
KBH Topco, LLC (Kingsbridge) [Member]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Organization
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings
Net change in unrealized gain (loss)
Summit Financial Resources [Member].
Summit Financial Resources [Member]
Summit Financial Resources [Member]
Management [Member]
Management [Member]
Gross Investment Income, Operating
Total investment income
NEFPASS Facility [Member]
NEFPASS Facility [Member]
Nefpass Facility Member
Spread Three [Member]
Spread Three [Member]
Spread three.
Measurement Input, Revenue Multiple [Member]
Revenue Multiple [Member]
Accounting Policies [Abstract]
Accounting Policies [Abstract]
SLR Equipment Finance [Member]
SLR equipment finance.
SLR Equipment Finance [Member]
SLR Equipment Finance [Member]
Rule 10b51 Arr Modified [Flag]
Rule 10b51 arrangement modified flag.
Rule 10b5-1 Arrangement Modified
Financial Services [Member]
Financial services.
Financial Services (includes SLR Credit Solutions, SLR Business Credit and SLR Healthcare ABL) [Member]
Class of Stock [Domain]
Labor and Related Expense
Performance-based incentive fees (see note 3)
Cash, Cash Equivalents, and Short-term Investments
Cash and other assets
DeepIntent, inc.
DeepIntent, Inc. [Member]
DeepIntent, Inc. [Member]
One touch direct, llc.
One Touch Direct, LLC [Member]
One Touch Direct, LLC [Member]
Co CEO [Member]
Co CEO [Member]