v3.26.3
N-2 - USD ($)
$ / shares in Units, $ in Thousands
Aug. 13, 2025
Sep. 30, 2023
Cover [Abstract]    
Entity Central Index Key 0001396440  
Amendment Flag false  
Document Type 424B2  
Entity Registrant Name Main Street Capital Corporation  
Fee Table [Abstract]    
Shareholder Transaction Expenses [Table Text Block]
Stockholder Transaction Expenses:
Sales load (as a percentage of offering price)—%(1)
Offering expenses (as a percentage of offering price)—%(2)
Dividend reinvestment and direct stock purchase plan expenses—%(3)
Total stockholder transaction expenses (as a percentage of offering price)—%(4)
Annual Expenses of the Company (as a percentage of net assets attributable to common stock as of December 31, 2024):
Operating expenses3.06%(5)
Interest payments on borrowed funds4.72%(6)
Income tax expense1.09%(7)
Acquired fund fees and expenses0.16%(8)
Total annual expenses9.03%
___________________________
(1)In the event that the securities to which this prospectus relates are sold to or through underwriters, a corresponding prospectus supplement will disclose the applicable sales load (underwriting discount or commission). Purchases of shares of our common stock on the secondary market are not subject to sales charges but may be subject to brokerage commissions or other charges. The table does not include any sales load that stockholders may have paid in connection with their purchase of shares of our common stock.
(2)In the event that we conduct an offering of our securities, a corresponding prospectus supplement will disclose the estimated amount of offering expenses, the offering price and the offering expenses borne by us as a percentage of the offering price.
(3)The expenses of administering our dividend reinvestment and direct stock purchase plan are included in operating expenses.
(4)The related prospectus supplement will disclose the offering price and the total stockholder transaction expenses as a percentage of the offering price.
(5)Operating expenses in this table represent the estimated expenses of MSCC and its consolidated subsidiaries.
(6)Interest payments on borrowed funds represent our estimated annual interest payments on borrowed funds based on current debt levels as adjusted for projected increases (but not decreases) in debt levels over the next twelve months.
(7)Income tax expense relates to the accrual of (a) deferred tax provision (benefit) primarily related to loss carryforwards, timing differences in net unrealized appreciation or depreciation and other temporary book-tax differences from our portfolio investments held in Taxable Subsidiaries and (b) excise, state and other taxes. Deferred taxes are non-cash in nature and may vary significantly from period to period. We are required to include deferred taxes in calculating our annual expenses even though deferred taxes are not currently payable or receivable. Due to the variable nature of deferred tax expense, which can be a large portion of the income tax expense, and the difficulty in providing an estimate for future periods, this income tax expense estimate is based upon the actual amount of income tax expense for the year ended December 31, 2024.
(8)Acquired fund fees and expenses represent the estimated indirect expense incurred due to investments in other investment companies and private funds. 		 
Sales Load [Percent] 0.00%  
Other Transaction Expenses [Abstract]    
Other Transaction Expense 1 [Percent] 0.00%  
Other Transaction Expense 2 [Percent] 0.00%  
Other Transaction Expenses [Percent] 0.00%  
Annual Expenses [Table Text Block]
Stockholder Transaction Expenses:
Sales load (as a percentage of offering price)—%(1)
Offering expenses (as a percentage of offering price)—%(2)
Dividend reinvestment and direct stock purchase plan expenses—%(3)
Total stockholder transaction expenses (as a percentage of offering price)—%(4)
Annual Expenses of the Company (as a percentage of net assets attributable to common stock as of December 31, 2024):
Operating expenses3.06%(5)
Interest payments on borrowed funds4.72%(6)
Income tax expense1.09%(7)
Acquired fund fees and expenses0.16%(8)
Total annual expenses9.03%
___________________________
(1)In the event that the securities to which this prospectus relates are sold to or through underwriters, a corresponding prospectus supplement will disclose the applicable sales load (underwriting discount or commission). Purchases of shares of our common stock on the secondary market are not subject to sales charges but may be subject to brokerage commissions or other charges. The table does not include any sales load that stockholders may have paid in connection with their purchase of shares of our common stock.
(2)In the event that we conduct an offering of our securities, a corresponding prospectus supplement will disclose the estimated amount of offering expenses, the offering price and the offering expenses borne by us as a percentage of the offering price.
(3)The expenses of administering our dividend reinvestment and direct stock purchase plan are included in operating expenses.
(4)The related prospectus supplement will disclose the offering price and the total stockholder transaction expenses as a percentage of the offering price.
(5)Operating expenses in this table represent the estimated expenses of MSCC and its consolidated subsidiaries.
(6)Interest payments on borrowed funds represent our estimated annual interest payments on borrowed funds based on current debt levels as adjusted for projected increases (but not decreases) in debt levels over the next twelve months.
(7)Income tax expense relates to the accrual of (a) deferred tax provision (benefit) primarily related to loss carryforwards, timing differences in net unrealized appreciation or depreciation and other temporary book-tax differences from our portfolio investments held in Taxable Subsidiaries and (b) excise, state and other taxes. Deferred taxes are non-cash in nature and may vary significantly from period to period. We are required to include deferred taxes in calculating our annual expenses even though deferred taxes are not currently payable or receivable. Due to the variable nature of deferred tax expense, which can be a large portion of the income tax expense, and the difficulty in providing an estimate for future periods, this income tax expense estimate is based upon the actual amount of income tax expense for the year ended December 31, 2024.
(8)Acquired fund fees and expenses represent the estimated indirect expense incurred due to investments in other investment companies and private funds. 		 
Acquired Fund Fees and Expenses [Percent] 0.16%  
Other Annual Expenses [Abstract]    
Other Annual Expense 1 [Percent] 3.06%  
Other Annual Expense 2 [Percent] 4.72%  
Other Annual Expense 3 [Percent] 1.09%  
Total Annual Expenses [Percent] 9.03%  
Acquired Fund Fees and Expenses, Note [Text Block] Acquired fund fees and expenses represent the estimated indirect expense incurred due to investments in other investment companies and private funds.  
Financial Highlights [Abstract]    
Senior Securities [Table Text Block]
Total Amount Outstanding Exclusive of Treasury Securities(1)Asset Coverage per Unit(2)Involuntary Liquidating Preference per Unit(3)Average Market Value per Unit(4)
(dollars in thousands)
SBIC Debentures
2026 (as of June 30, 2026, unaudited)$350,000 $2,243 — N/A
Corporate Facility
2026 (as of June 30, 2026, unaudited)$26,000 $2,243 — N/A
SPV Facility
2026 (as of June 30, 2026, unaudited)$215,000 $2,243 — N/A
July 2026 Notes(5)
2026 (as of June 30, 2026, unaudited)$500,000 2,243 — N/A
June 2027 Notes
2026 (as of June 30, 2026, unaudited)$400,000 $2,243 — N/A
August 2028 Notes
2026 (as of June 30, 2026, unaudited)$350,000 $2,243 — N/A
March 2029 Notes
2026 (as of June 30, 2026, unaudited)$550,000 $2,243 — N/A
April 2031 Notes
2026 (as of June 30, 2026, unaudited)$150,000 $2,243 — N/A
___________________________
(1)Total amount of each class of senior securities outstanding at the end of the period presented.
(2)Asset coverage per unit is the ratio of the carrying value of Main Street’s total consolidated assets, less all liabilities and indebtedness not represented by senior securities, to the aggregate amount of senior securities representing indebtedness. Asset coverage per unit is expressed in terms of dollar amounts per $1,000 of indebtedness.
(3)The amount to which such class of senior security would be entitled upon the involuntary liquidation of the issuer in preference to any security junior to it. The “—” indicates information that the SEC expressly does not require to be disclosed for certain types of senior securities.
(4)Average market value per unit for all senior securities included in the table is not applicable because these are not registered for public trading.
  
Senior Securities, Note [Text Block]
SENIOR SECURITIES
Information about our senior securities is shown in the following table as of June 30, 2026. Information about our senior securities as of the end of the last ten fiscal years is located in “Note E — Debt” in the notes to our audited consolidated financial statements included in our most recent Annual Report on Form 10-K, which is incorporated by reference herein. The report of our independent registered public accounting firm with respect to the consolidated financial statements for the year ended December 31, 2025, which includes the senior securities table as of December 31, 2025, is included in our most recent Annual report on Form 10-K and is incorporated by reference herein.
  
Senior Securities Headings, Note [Text Block] Total amount of each class of senior securities outstanding at the end of the period presented.Asset coverage per unit is the ratio of the carrying value of Main Street’s total consolidated assets, less all liabilities and indebtedness not represented by senior securities, to the aggregate amount of senior securities representing indebtedness. Asset coverage per unit is expressed in terms of dollar amounts per $1,000 of indebtedness.The amount to which such class of senior security would be entitled upon the involuntary liquidation of the issuer in preference to any security junior to it. The “—” indicates information that the SEC expressly does not require to be disclosed for certain types of senior securities.Average market value per unit for all senior securities included in the table is not applicable because these are not registered for public trading.  
General Description of Registrant [Abstract]    
Risk Factors [Table Text Block]
Risks Relating to the Notes
The Notes will be unsecured and therefore will be effectively subordinated to any current or future secured indebtedness, including indebtedness under the Corporate Facility.
The Notes will not be secured by any of our assets or any of the assets of our subsidiaries and will rank equally in right of payment with all of our existing and future unsubordinated, unsecured indebtedness. As a result, the Notes are effectively subordinated to any secured indebtedness we or our subsidiaries have currently incurred and may incur in the future (or any indebtedness that is initially unsecured to which we subsequently grant security) to the extent of the value of the assets securing such indebtedness. In any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of any of our existing or future secured indebtedness and the secured indebtedness of our subsidiaries may assert rights against the assets pledged to secure that indebtedness in order to receive full payment of their indebtedness before the assets may be used to pay other creditors, including the holders of the Notes. The indebtedness under the Corporate Facility is senior to the Notes to the extent of the value of the assets securing such indebtedness.
The Notes will be structurally subordinated to the indebtedness and other liabilities of our subsidiaries.
The Notes will be obligations exclusively of Main Street Capital Corporation and not of any of our subsidiaries. None of our subsidiaries is a guarantor of the Notes, and the Notes are not required to be guaranteed by any subsidiaries we may acquire or create in the future. A significant portion of the indebtedness required to be consolidated on our balance sheet is held through the Structured Subsidiaries in connection with the SPV Facility and secured by certain assets of such subsidiaries. In addition, several of our subsidiaries, specifically the Funds, maintain significant indebtedness. For example, as of October 23, 2026, we had approximately $313.5 million outstanding under our SPV Facility and the Funds had collectively issued $350.0 million of SBA-guaranteed debentures, which are included in our consolidated financial statements. All of such indebtedness would be structurally senior to the Notes. The assets of such subsidiaries are not directly available to satisfy the claims of our creditors, including holders of the Notes. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources” in our most recently filed Annual Report on Form 10-K, as well as in subsequent filings with the SEC, including our Quarterly Report on Form 10-Q for the quarter ended June 30, 2026, incorporated by reference herein for more detail.
Except to the extent we are a creditor with recognized claims against our subsidiaries, all claims of other creditors of our subsidiaries will have priority over our equity interests in such subsidiaries (and therefore the claims of our creditors, including holders of the Notes) with respect to the assets of such subsidiaries. Even if we are recognized as a creditor of one or more of our subsidiaries, our claims would still be effectively subordinated to any security interests in the assets of any such subsidiary and to any indebtedness or other liabilities of any such subsidiary senior to our claims. Consequently, the Notes will be structurally subordinated to all indebtedness, including the borrowings under the SPV Facility and the SBA-guaranteed debentures, and other liabilities of any of our subsidiaries and any subsidiaries that we may in the future acquire or establish. In addition, our subsidiaries may incur substantial additional indebtedness in the future, all of which would be structurally senior to the Notes.
There is no active trading market for the Notes. If an active trading market does not develop for the Notes you may not be able to sell them.
The Notes are a new issue of debt securities for which there currently is no trading market. We do not intend to list the Notes on any securities exchange or for quotation of the Notes on any automated dealer quotation system. If the Notes are traded after their initial issuance, they may trade at a discount to their initial offering price depending on prevailing interest rates, the market for similar securities, our credit ratings, our financial condition or other relevant factors. The underwriters may discontinue any market-making in the Notes at any time at their sole discretion. Accordingly, we cannot assure you that a liquid trading market will develop for the Notes, that you will be able to sell your Notes at a particular time or that the price you receive when you sell will be favorable. To the extent an active trading market does not develop, the liquidity and trading price for the Notes may be harmed. Accordingly, you may be required to bear the financial risk of an investment in the Notes for an indefinite period of time.
A downgrade, suspension or withdrawal of the credit rating assigned by a rating agency to us or the Notes, if any, or change in the debt markets could cause the liquidity or market value of the Notes to decline significantly.
Our credit ratings are an assessment by rating agencies of our ability to pay our debts when due. Consequently, real or anticipated changes in our credit ratings will generally affect the market value of the Notes. These credit ratings may not reflect the potential impact of risks relating to the structure or marketing of the Notes. Credit ratings are not a recommendation to buy, sell or hold any security, and may be revised or withdrawn at any time by the issuing organization in its sole discretion. Neither we nor any underwriter undertakes any obligation to maintain our credit ratings or to advise holders of Notes of any changes in our credit ratings. The Notes will be rated by Standard & Poor’s Ratings Services and Fitch Ratings. There can be no assurance that our credit ratings will remain for any given period of time or that such credit ratings will not be lowered or withdrawn entirely by the rating agency if in their judgment future circumstances relating to the basis of the credit ratings, such as adverse changes in our company, so warrant. Any downgrades to us or our securities could increase our cost of capital or otherwise have a negative effect on our results of operations or financial condition. The conditions of the financial markets and prevailing interest rates have fluctuated in the past and are likely to fluctuate in the future, which could have an adverse effect on the market prices of the Notes.
The indenture under which the Notes will be issued contains limited protection for holders of the Notes.
The indenture under which the Notes will be issued offers limited protection to holders of the Notes. The terms of the indenture and the Notes do not restrict our or any of our subsidiaries’ ability to engage in, or otherwise be a party to, a variety of corporate transactions, circumstances or events that could have an adverse impact on your investment in the Notes. In particular, the terms of the indenture and the Notes will not place any restrictions on our or our subsidiaries’ ability to:
•issue securities or otherwise incur additional indebtedness or other obligations, including (1) any indebtedness or other obligations that would be equal in right of payment to the Notes, (2) any indebtedness or other obligations that would be secured and therefore rank effectively senior in right of payment to the Notes to the extent of the values of the assets securing such debt, (3) indebtedness of ours that is guaranteed by one or more of our subsidiaries and which therefore is structurally senior to the Notes and (4) securities, indebtedness or obligations issued or incurred by our subsidiaries that would be senior to our equity interests in our subsidiaries and therefore rank structurally senior to the Notes with respect to the assets of our subsidiaries, in each case other than an incurrence of indebtedness or other obligation that would cause a violation of Section 18(a)(1)(A) as modified by Section 61(a) of the 1940 Act or any successor provisions, but giving effect, in each case, to any exemptive relief granted to us by the SEC (currently, this provision generally prohibits us from making additional borrowings, including through the issuance of additional debt or the sale of additional debt securities, unless our asset coverage, as defined in the 1940 Act, equals at least 150% after such borrowings);
•pay dividends on, or purchase or redeem or make any payments in respect of, capital stock or other securities ranking junior in right of payment to the Notes, including subordinated indebtedness;
•sell assets (other than certain limited restrictions on our ability to consolidate, merge or sell all or substantially all of our assets);
•enter into transactions with affiliates;
•create liens (including liens on the shares of our subsidiaries) or enter into sale and leaseback transactions;
•make investments; or
•create restrictions on the payment of dividends or other amounts to us from our subsidiaries.
Furthermore, the terms of the indenture and the Notes do not protect holders of the Notes in the event that we experience changes (including significant adverse changes) in our financial condition, results of operations or credit ratings, if any, as they do not require that we or our subsidiaries adhere to any financial tests or ratios or specified levels of net worth, revenues, income, cash flow or liquidity.
Our ability to recapitalize, incur additional debt and take a number of other actions that are not limited by the terms of the Notes may have important consequences for you as a holder of the Notes, including making it more difficult for us to satisfy our obligations with respect to the Notes or negatively affecting the trading value of the Notes.
Other debt we issue or incur in the future could contain more protections for its holders than the indenture and the Notes, including additional covenants and events of default. The issuance or incurrence of any such debt with incremental protections could affect the market for and trading levels and prices of the Notes.
The optional redemption provision may materially adversely affect your return on the Notes.
The Notes are redeemable in whole or in part upon certain conditions at any time or from time to time at our option. We may choose to redeem the Notes at times when prevailing interest rates are lower than the interest rate paid on the Notes. In this circumstance, you may not be able to reinvest the redemption proceeds in a comparable security at an effective interest rate as high as the Notes being redeemed.
We may not be able to repurchase the Notes upon a Change of Control Repurchase Event.
We may not be able to repurchase the Notes upon a Change of Control Repurchase Event because we may not have sufficient funds. Upon a Change of Control Repurchase Event, holders of the Notes may require us to repurchase for cash some or all of the Notes at a repurchase price equal to 100% of the aggregate principal amount of the Notes being repurchased, plus accrued and unpaid interest to, but not including, the repurchase date. The terms of our Credit Facilities provide that certain change of control events will constitute an event of default thereunder entitling the lenders to accelerate any indebtedness outstanding under our Credit Facilities at that time and to terminate the Credit Facilities.
In addition, the governing agreements for each of the June 2027 Notes, the August 2028 Notes, the March 2029 Notes and the April 2031 Notes contain a provision that obligates us to offer to prepay each of the June 2027 Notes, the August 2028 Notes, the March 2029 Notes and the April 2031 Notes at par plus accrued and unpaid interest up to, but excluding, the date of prepayment, if certain change in control events occur. A failure to prepay any tendered June 2027 Notes, August 2028 Notes, March 2029 Notes or April 2031 Notes would constitute an event of default under the governing agreements for each of the June 2027 Notes, the August 2028 Notes, the March 2029 Notes and the April 2031 Notes, which would, in turn, constitute a default under the Credit Facilities and the indenture. Our and our subsidiaries’ future financing facilities and borrowings may contain similar restrictions and provisions. Our failure to purchase such tendered Notes upon the occurrence of such Change of Control Repurchase Event would cause an event of default under the indenture governing the Notes and a cross-default under the agreements governing certain of our other indebtedness, which may result in the acceleration of such indebtedness requiring us to repay that indebtedness immediately. If a Change of Control Repurchase Event were to occur, we may not have sufficient funds to repay any such accelerated indebtedness. See “Description of the Notes — Offer to Repurchase Upon a Change of Control Repurchase Event” in this prospectus supplement for more information.
If we default on our obligations to pay our other indebtedness, we may not be able to make payments on the Notes.
Any default under the agreements governing our indebtedness to which we may be a party that is not waived by the required lenders or debt holders, and the remedies sought by the holders of such indebtedness could make us unable to pay principal, premium, if any, and interest on the Notes and substantially decrease the market value of the Notes. If we are unable to generate sufficient cash flow and are otherwise unable to obtain funds necessary to meet required payments of principal, premium, if any, and interest on our indebtedness, or if we otherwise fail to comply with the various covenants, including financial and operating covenants, in the instruments governing our indebtedness, we could be in default under the terms of the agreements governing such indebtedness. In the event of such default, the holders of such indebtedness could elect to declare all the funds borrowed thereunder to be due and payable, together with accrued and unpaid interest, the lenders under the Credit Facilities or other debt we may incur in the future could elect to terminate their commitments, cease making further loans and institute foreclosure proceedings against our assets, and we could be forced into bankruptcy or liquidation. Our ability to generate sufficient cash flow in the future is, to some
extent, subject to general economic, financial, competitive, legislative and regulatory factors as well as other factors that are beyond our control. We cannot assure you that our business will generate cash flow from operations, or that future borrowings will be available to us under the Credit Facilities or otherwise, in an amount sufficient to enable us to meet our payment obligations under the Notes and our other debt and to fund other liquidity needs.
If our operating performance declines and we are not able to generate sufficient cash flow to service our debt obligations, we may in the future need to refinance or restructure our debt, including the Notes, sell assets, reduce or delay capital investments, seek to raise additional capital or seek to obtain waivers from the required lenders under the Credit Facilities or the required holders of the Notes, the June 2027 Notes, the August 2028 Notes, the March 2029 Notes, the April 2031 Notes or other debt that we may incur in the future to avoid being in default. If we are unable to implement one or more of these alternatives, we may not be able to meet our payment obligations under the Notes and our other debt. If we breach our covenants under the Credit Facilities, the Notes, the June 2027 Notes, the August 2028 Notes, the March 2029 Notes, the April 2031 Notes or other debt and seek a waiver, we may not be able to obtain a waiver from the required lenders or debt holders. If this occurs, we would be in default under the Credit Facilities, the Notes, the June 2027 Notes, the August 2028 Notes, the March 2029 Notes, the April 2031 Notes or other debt, and the lenders or debt holders could exercise their rights as described above, and we could be forced into bankruptcy or liquidation. If we are unable to repay debt, lenders having secured obligations could proceed against the collateral securing the debt. Because the Credit Facilities have, and any future credit facilities will likely have, customary cross-default provisions, if the indebtedness under the Notes, the June 2027 Notes, the August 2028 Notes, the March 2029 Notes, the April 2031 Notes, the Credit Facilities or under any future credit facility is accelerated, we may be unable to repay or finance the amounts due.
Because the Notes will initially be held in book-entry form, holders of the Notes must rely on DTC’s procedures to exercise their rights and remedies.
We will initially issue the Notes offered hereby in the form of one or more “global notes” registered in the name of Cede & Co., as nominee of DTC. Beneficial interests in global notes will be shown on, and transfers of global notes will be effected only through, the records maintained by DTC. Except in limited circumstances, we will not issue certificated notes. See “Description of the Notes — Book-Entry, Settlement and Clearance.” Accordingly, if you own a beneficial interest in a global note, then you will not be considered an owner or holder of the Notes. Instead, DTC or its nominee will be the sole holder of the Notes. Payments of principal, interest and other amounts on global notes will be made to the paying agent, who will remit the payments to DTC. We expect that DTC will then credit those payments to the DTC participant accounts that hold book-entry interests in the global notes and that those participants will credit the payments to indirect DTC participants. Unlike persons who have certificated notes registered in their names, owners of beneficial interests in global notes will not have the direct right to act on our solicitations for consents or requests for waivers or other actions from holders of the Notes. Instead, those beneficial owners will be permitted to act only to the extent that they have received appropriate proxies to do so from DTC or, if applicable, a DTC participant. The applicable procedures for the granting of these proxies may not be sufficient to enable owners of beneficial interests in global notes to vote on any requested actions on a timely basis.
We may be unable to invest a significant portion of the net proceeds from this offering, which could harm our financial condition and operating results.
Delays in investing the net proceeds raised in this offering may cause our performance to be worse than that of other fully invested BDCs or other lenders or investors pursuing comparable investment strategies. We cannot assure you that we will be able to identify investments that meet our investment objective or that any investment that we make will produce a positive return. We may be unable to invest the net proceeds of this offering on acceptable terms within the time period that we anticipate or at all, which could harm our financial condition and operating results.
  
Unsecured Notes Risk [Member]    
General Description of Registrant [Abstract]    
Risk [Text Block] . The Notes will not be secured by any of our assets or any of the assets of our subsidiaries and will rank equally in right of payment with all of our existing and future unsubordinated, unsecured indebtedness. As a result, the Notes are effectively subordinated to any secured indebtedness we or our subsidiaries have currently incurred and may incur in the future (or any indebtedness that is initially unsecured to which we subsequently grant security) to the extent of the value of the assets securing such indebtedness. In any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of any of our existing or future secured indebtedness and the secured indebtedness of our subsidiaries may assert rights against the assets pledged to secure that indebtedness in order to receive full payment of their indebtedness before the assets may be used to pay other creditors, including the holders of the Notes. The indebtedness under the Corporate Facility is senior to the Notes to the extent of the value of the assets securing such indebtedness.  
Subordinated To Indebtedness And Liabilities Of Subsidiaries Risk [Member]    
General Description of Registrant [Abstract]    
Risk [Text Block] .
The Notes will be obligations exclusively of Main Street Capital Corporation and not of any of our subsidiaries. None of our subsidiaries is a guarantor of the Notes, and the Notes are not required to be guaranteed by any subsidiaries we may acquire or create in the future. A significant portion of the indebtedness required to be consolidated on our balance sheet is held through the Structured Subsidiaries in connection with the SPV Facility and secured by certain assets of such subsidiaries. In addition, several of our subsidiaries, specifically the Funds, maintain significant indebtedness. For example, as of October 23, 2026, we had approximately $313.5 million outstanding under our SPV Facility and the Funds had collectively issued $350.0 million of SBA-guaranteed debentures, which are included in our consolidated financial statements. All of such indebtedness would be structurally senior to the Notes. The assets of such subsidiaries are not directly available to satisfy the claims of our creditors, including holders of the Notes. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources” in our most recently filed Annual Report on Form 10-K, as well as in subsequent filings with the SEC, including our Quarterly Report on Form 10-Q for the quarter ended June 30, 2026, incorporated by reference herein for more detail.
Except to the extent we are a creditor with recognized claims against our subsidiaries, all claims of other creditors of our subsidiaries will have priority over our equity interests in such subsidiaries (and therefore the claims of our creditors, including holders of the Notes) with respect to the assets of such subsidiaries. Even if we are recognized as a creditor of one or more of our subsidiaries, our claims would still be effectively subordinated to any security interests in the assets of any such subsidiary and to any indebtedness or other liabilities of any such subsidiary senior to our claims. Consequently, the Notes will be structurally subordinated to all indebtedness, including the borrowings under the SPV Facility and the SBA-guaranteed debentures, and other liabilities of any of our subsidiaries and any subsidiaries that we may in the future acquire or establish. In addition, our subsidiaries may incur substantial additional indebtedness in the future, all of which would be structurally senior to the Notes. 		 
No Active Trading Market For The Notes Risk [Member]    
General Description of Registrant [Abstract]    
Risk [Text Block] The Notes are a new issue of debt securities for which there currently is no trading market. We do not intend to list the Notes on any securities exchange or for quotation of the Notes on any automated dealer quotation system. If the Notes are traded after their initial issuance, they may trade at a discount to their initial offering price depending on prevailing interest rates, the market for similar securities, our credit ratings, our financial condition or other relevant factors. The underwriters may discontinue any market-making in the Notes at any time at their sole discretion. Accordingly, we cannot assure you that a liquid trading market will develop for the Notes, that you will be able to sell your Notes at a particular time or that the price you receive when you sell will be favorable. To the extent an active trading market does not develop, the liquidity and trading price for the Notes may be harmed. Accordingly, you may be required to bear the financial risk of an investment in the Notes for an indefinite period of time.  
Credit Rating Risk [Member]    
General Description of Registrant [Abstract]    
Risk [Text Block]
A downgrade, suspension or withdrawal of the credit rating assigned by a rating agency to us or the Notes, if any, or change in the debt markets could cause the liquidity or market value of the Notes to decline significantly.
Our credit ratings are an assessment by rating agencies of our ability to pay our debts when due. Consequently, real or anticipated changes in our credit ratings will generally affect the market value of the Notes. These credit ratings may not reflect the potential impact of risks relating to the structure or marketing of the Notes. Credit ratings are not a recommendation to buy, sell or hold any security, and may be revised or withdrawn at any time by the issuing organization in its sole discretion. Neither we nor any underwriter undertakes any obligation to maintain our credit ratings or to advise holders of Notes of any changes in our credit ratings. The Notes will be rated by Standard & Poor’s Ratings Services and Fitch Ratings. There can be no assurance that our credit ratings will remain for any given period of time or that such credit ratings will not be lowered or withdrawn entirely by the rating agency if in their judgment future circumstances relating to the basis of the credit ratings, such as adverse changes in our company, so warrant. Any downgrades to us or our securities could increase our cost of capital or otherwise have a negative effect on our results of operations or financial condition. The conditions of the financial markets and prevailing interest rates have fluctuated in the past and are likely to fluctuate in the future, which could have an adverse effect on the market prices of the Notes. 		 
Limited Protection Risk [Member]    
General Description of Registrant [Abstract]    
Risk [Text Block]
The indenture under which the Notes will be issued contains limited protection for holders of the Notes.
The indenture under which the Notes will be issued offers limited protection to holders of the Notes. The terms of the indenture and the Notes do not restrict our or any of our subsidiaries’ ability to engage in, or otherwise be a party to, a variety of corporate transactions, circumstances or events that could have an adverse impact on your investment in the Notes. In particular, the terms of the indenture and the Notes will not place any restrictions on our or our subsidiaries’ ability to:
•issue securities or otherwise incur additional indebtedness or other obligations, including (1) any indebtedness or other obligations that would be equal in right of payment to the Notes, (2) any indebtedness or other obligations that would be secured and therefore rank effectively senior in right of payment to the Notes to the extent of the values of the assets securing such debt, (3) indebtedness of ours that is guaranteed by one or more of our subsidiaries and which therefore is structurally senior to the Notes and (4) securities, indebtedness or obligations issued or incurred by our subsidiaries that would be senior to our equity interests in our subsidiaries and therefore rank structurally senior to the Notes with respect to the assets of our subsidiaries, in each case other than an incurrence of indebtedness or other obligation that would cause a violation of Section 18(a)(1)(A) as modified by Section 61(a) of the 1940 Act or any successor provisions, but giving effect, in each case, to any exemptive relief granted to us by the SEC (currently, this provision generally prohibits us from making additional borrowings, including through the issuance of additional debt or the sale of additional debt securities, unless our asset coverage, as defined in the 1940 Act, equals at least 150% after such borrowings);
•pay dividends on, or purchase or redeem or make any payments in respect of, capital stock or other securities ranking junior in right of payment to the Notes, including subordinated indebtedness;
•sell assets (other than certain limited restrictions on our ability to consolidate, merge or sell all or substantially all of our assets);
•enter into transactions with affiliates;
•create liens (including liens on the shares of our subsidiaries) or enter into sale and leaseback transactions;
•make investments; or
•create restrictions on the payment of dividends or other amounts to us from our subsidiaries.
Furthermore, the terms of the indenture and the Notes do not protect holders of the Notes in the event that we experience changes (including significant adverse changes) in our financial condition, results of operations or credit ratings, if any, as they do not require that we or our subsidiaries adhere to any financial tests or ratios or specified levels of net worth, revenues, income, cash flow or liquidity.
Our ability to recapitalize, incur additional debt and take a number of other actions that are not limited by the terms of the Notes may have important consequences for you as a holder of the Notes, including making it more difficult for us to satisfy our obligations with respect to the Notes or negatively affecting the trading value of the Notes.
Other debt we issue or incur in the future could contain more protections for its holders than the indenture and the Notes, including additional covenants and events of default. The issuance or incurrence of any such debt with incremental protections could affect the market for and trading levels and prices of the Notes. 		 
Optional Redemption Provision Risk [Member]    
General Description of Registrant [Abstract]    
Risk [Text Block]
The optional redemption provision may materially adversely affect your return on the Notes.
The Notes are redeemable in whole or in part upon certain conditions at any time or from time to time at our option. We may choose to redeem the Notes at times when prevailing interest rates are lower than the interest rate paid on the Notes. In this circumstance, you may not be able to reinvest the redemption proceeds in a comparable security at an effective interest rate as high as the Notes being redeemed. 		 
Change Of Control Repurchase Event Risk [Member]    
General Description of Registrant [Abstract]    
Risk [Text Block]
We may not be able to repurchase the Notes upon a Change of Control Repurchase Event.
We may not be able to repurchase the Notes upon a Change of Control Repurchase Event because we may not have sufficient funds. Upon a Change of Control Repurchase Event, holders of the Notes may require us to repurchase for cash some or all of the Notes at a repurchase price equal to 100% of the aggregate principal amount of the Notes being repurchased, plus accrued and unpaid interest to, but not including, the repurchase date. The terms of our Credit Facilities provide that certain change of control events will constitute an event of default thereunder entitling the lenders to accelerate any indebtedness outstanding under our Credit Facilities at that time and to terminate the Credit Facilities.
In addition, the governing agreements for each of the June 2027 Notes, the August 2028 Notes, the March 2029 Notes and the April 2031 Notes contain a provision that obligates us to offer to prepay each of the June 2027 Notes, the August 2028 Notes, the March 2029 Notes and the April 2031 Notes at par plus accrued and unpaid interest up to, but excluding, the date of prepayment, if certain change in control events occur. A failure to prepay any tendered June 2027 Notes, August 2028 Notes, March 2029 Notes or April 2031 Notes would constitute an event of default under the governing agreements for each of the June 2027 Notes, the August 2028 Notes, the March 2029 Notes and the April 2031 Notes, which would, in turn, constitute a default under the Credit Facilities and the indenture. Our and our subsidiaries’ future financing facilities and borrowings may contain similar restrictions and provisions. Our failure to purchase such tendered Notes upon the occurrence of such Change of Control Repurchase Event would cause an event of default under the indenture governing the Notes and a cross-default under the agreements governing certain of our other indebtedness, which may result in the acceleration of such indebtedness requiring us to repay that indebtedness immediately. If a Change of Control Repurchase Event were to occur, we may not have sufficient funds to repay any such accelerated indebtedness. See “Description of the Notes — Offer to Repurchase Upon a Change of Control Repurchase Event” in this prospectus supplement for more information. 		 
Debt Outstanding Increase Risk [Member]    
General Description of Registrant [Abstract]    
Risk [Text Block]
If we default on our obligations to pay our other indebtedness, we may not be able to make payments on the Notes.
Any default under the agreements governing our indebtedness to which we may be a party that is not waived by the required lenders or debt holders, and the remedies sought by the holders of such indebtedness could make us unable to pay principal, premium, if any, and interest on the Notes and substantially decrease the market value of the Notes. If we are unable to generate sufficient cash flow and are otherwise unable to obtain funds necessary to meet required payments of principal, premium, if any, and interest on our indebtedness, or if we otherwise fail to comply with the various covenants, including financial and operating covenants, in the instruments governing our indebtedness, we could be in default under the terms of the agreements governing such indebtedness. In the event of such default, the holders of such indebtedness could elect to declare all the funds borrowed thereunder to be due and payable, together with accrued and unpaid interest, the lenders under the Credit Facilities or other debt we may incur in the future could elect to terminate their commitments, cease making further loans and institute foreclosure proceedings against our assets, and we could be forced into bankruptcy or liquidation. Our ability to generate sufficient cash flow in the future is, to some
extent, subject to general economic, financial, competitive, legislative and regulatory factors as well as other factors that are beyond our control. We cannot assure you that our business will generate cash flow from operations, or that future borrowings will be available to us under the Credit Facilities or otherwise, in an amount sufficient to enable us to meet our payment obligations under the Notes and our other debt and to fund other liquidity needs.
If our operating performance declines and we are not able to generate sufficient cash flow to service our debt obligations, we may in the future need to refinance or restructure our debt, including the Notes, sell assets, reduce or delay capital investments, seek to raise additional capital or seek to obtain waivers from the required lenders under the Credit Facilities or the required holders of the Notes, the June 2027 Notes, the August 2028 Notes, the March 2029 Notes, the April 2031 Notes or other debt that we may incur in the future to avoid being in default. If we are unable to implement one or more of these alternatives, we may not be able to meet our payment obligations under the Notes and our other debt. If we breach our covenants under the Credit Facilities, the Notes, the June 2027 Notes, the August 2028 Notes, the March 2029 Notes, the April 2031 Notes or other debt and seek a waiver, we may not be able to obtain a waiver from the required lenders or debt holders. If this occurs, we would be in default under the Credit Facilities, the Notes, the June 2027 Notes, the August 2028 Notes, the March 2029 Notes, the April 2031 Notes or other debt, and the lenders or debt holders could exercise their rights as described above, and we could be forced into bankruptcy or liquidation. If we are unable to repay debt, lenders having secured obligations could proceed against the collateral securing the debt. Because the Credit Facilities have, and any future credit facilities will likely have, customary cross-default provisions, if the indebtedness under the Notes, the June 2027 Notes, the August 2028 Notes, the March 2029 Notes, the April 2031 Notes, the Credit Facilities or under any future credit facility is accelerated, we may be unable to repay or finance the amounts due.
  
DTC Procedures Risk [Member]    
General Description of Registrant [Abstract]    
Risk [Text Block]
Because the Notes will initially be held in book-entry form, holders of the Notes must rely on DTC’s procedures to exercise their rights and remedies.
We will initially issue the Notes offered hereby in the form of one or more “global notes” registered in the name of Cede & Co., as nominee of DTC. Beneficial interests in global notes will be shown on, and transfers of global notes will be effected only through, the records maintained by DTC. Except in limited circumstances, we will not issue certificated notes. See “Description of the Notes — Book-Entry, Settlement and Clearance.” Accordingly, if you own a beneficial interest in a global note, then you will not be considered an owner or holder of the Notes. Instead, DTC or its nominee will be the sole holder of the Notes. Payments of principal, interest and other amounts on global notes will be made to the paying agent, who will remit the payments to DTC. We expect that DTC will then credit those payments to the DTC participant accounts that hold book-entry interests in the global notes and that those participants will credit the payments to indirect DTC participants. Unlike persons who have certificated notes registered in their names, owners of beneficial interests in global notes will not have the direct right to act on our solicitations for consents or requests for waivers or other actions from holders of the Notes. Instead, those beneficial owners will be permitted to act only to the extent that they have received appropriate proxies to do so from DTC or, if applicable, a DTC participant. The applicable procedures for the granting of these proxies may not be sufficient to enable owners of beneficial interests in global notes to vote on any requested actions on a timely basis.
  
Investment Risk [Member]    
General Description of Registrant [Abstract]    
Risk [Text Block]
We may be unable to invest a significant portion of the net proceeds from this offering, which could harm our financial condition and operating results.
Delays in investing the net proceeds raised in this offering may cause our performance to be worse than that of other fully invested BDCs or other lenders or investors pursuing comparable investment strategies. We cannot assure you that we will be able to identify investments that meet our investment objective or that any investment that we make will produce a positive return. We may be unable to invest the net proceeds of this offering on acceptable terms within the time period that we anticipate or at all, which could harm our financial condition and operating results.
  
May 2024 Notes [Member]    
Financial Highlights [Abstract]    
Senior Securities Amount   $ 550,000
July 2026 Notes [Member]    
Financial Highlights [Abstract]    
Senior Securities Amount   $ 150,000
Senior Securities Coverage per Unit   $ 2,243,000
SBIC Debentures [Member]    
Financial Highlights [Abstract]    
Senior Securities Amount   $ 350,000
Senior Securities Coverage per Unit   $ 2,243,000
Corporate Facility [Member]    
Financial Highlights [Abstract]    
Senior Securities Amount   $ 26,000
Senior Securities Coverage per Unit   $ 2,243,000
SPV Facility [Member]    
Financial Highlights [Abstract]    
Senior Securities Amount   $ 215,000
Senior Securities Coverage per Unit   $ 2,243,000