| N-2 - USD ($) $ in Thousands | Jan. 25, 2024 | Sep. 30, 2023 |
| Cover [Abstract] | | |
| Entity Central Index Key | 0001496099 | |
| Amendment Flag | false | |
| Document Type | 424B2 | |
| Entity Registrant Name | New Mountain Finance Corporation | |
| General Description of Registrant [Abstract] | | |
| Investment Objectives and Practices [Text Block] | Our investment objective is to generate current income and capital appreciation through the sourcing and origination of senior secured loans and select junior capital positions, to growing businesses in defensive industries that offer attractive risk-adjusted returns. Senior secured loans that we invest in may include traditional first lien loans or unitranche loans. We invest a significant portion of our portfolio in unitranche loans, which are loans that combine both senior and subordinated debt, generally in a first-lien position. Because unitranche loans combine characteristics of senior and subordinated debt, they have risks similar to the risks associated with secured debt and subordinated debt. Certain unitranche loan investments may include “last-out” positions, which generally heighten the risk of loss. In some cases, our investments may also include equity interests. We make investments through both primary originations and open-market secondary purchases. We primarily target loans to, and invest in, U.S. middle market businesses, a market segment we believe continues to be underserved by other lenders. We define middle market businesses as those businesses with annual earnings before interest, taxes, depreciation, and amortization (“EBITDA”) between $10.0 million and $200.0 million. We primarily invest in senior secured debt of U.S. sponsor-backed, middle market companies. Our focus is on defensive growth businesses that generally exhibit the following characteristics: (i) acyclicality, (ii) sustainable secular growth drivers, (iii) niche market dominance and high barriers to competitive entry, (iv) recurring revenue and strong free cash flow, (v) flexible cost structures and (vi) seasoned management teams. Similar to us, each of SBIC I’s and SBIC II’s investment objective is to generate current income and capital appreciation under our investment criteria. However, SBIC I’s and SBIC II’s investments must be in SBA eligible small businesses. Our portfolio may be concentrated in a limited number of industries. As of September 30, 2023, our top five industry concentrations were software, business services, healthcare, investment funds (which includes the Company’s investments in its joint ventures) and education. The investments that we invest in are almost entirely rated below investment grade or may be unrated. Debt investments rated below investment grade are often referred to as “leveraged loans”, “high yield” or “junk” debt investments, and may be considered “high risk” compared to debt investments that are rated investment grade. These debt investments are considered speculative because of the credit risk of the issuers. Such issuers are considered more likely than investment grade issuers to default on their payments of interest and principal, and such risk of default could reduce our net asset value (“NAV”) and income distributions. Our investments are also primarily floating rate debt investments that contain interest reset provisions that may make it more difficult for borrowers to make debt repayments to us if interest rates rise. In addition, some of our debt investments will not fully amortize during their lifetime, which could result in a loss or a substantial amount of unpaid principal and interest due upon maturity. Our debt investments may also lose significant market value before a default occurs. Furthermore, an active trading market may not exist for these securities. This illiquidity may make it more difficult to value our investments. | |
| Risk Factors [Table Text Block] | SUPPLEMENTARY RISK FACTORS Investing in the Notes involves a number of significant risks. In addition to the other information contained in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference, you should carefully consider the risk factors set forth below, the risk factors incorporated by reference in the accompanying prospectus and as described in the section titled “Risk Factors” in our most recent Annual Report on Form 10-K, the section titled “Risk Factors” in our most recent Quarterly Report on Form 10-Q, as well as subsequent filings with the SEC, which are incorporated by reference into this prospectus supplement and the accompanying prospectus in their entirety, before making an investment in the Notes. The risks set forth below and the risk factors incorporated by reference into this prospectus supplement and the accompanying prospectus, as described in the section titled “Risk Factors” in our most recent Annual Report on Form 10-K, the section titled “Risk Factors” in our most recent Quarterly Report on Form 10-Q, and any subsequent filings with the SEC are the principal risks with respect to the Company generally and with respect to BDCs, they may not be the only risks we face. This section nonetheless describes the principal risk factors associated with the Notes specifically. If any of the risks occur, our business, financial condition and results of operations could be materially adversely affected. In such case, our NAV and the trading price of our securities could decline and you may lose all or part of your investment. Please also read carefully the section titled “Note about Forward-Looking Statements” in this prospectus supplement and the section titled “Cautionary Statement Regarding Forward-Looking Statements” in the accompanying prospectus. Risks Related to the Notes The Notes will be unsecured and therefore will be effectively subordinated to any existing and future secured indebtedness, including indebtedness under our Credit Facilities. The Notes will not be secured by any of our assets or any of the assets of any of our subsidiaries. As a result, the Notes will be effectively subordinated to any existing and future secured indebtedness we or our subsidiaries have outstanding as of the date of this prospectus supplement (including our Credit Facilities) or that we or our subsidiaries may incur in the future (or any indebtedness that is initially unsecured as to which we have granted or subsequently grant a security interest) to the extent of the value of the assets securing such indebtedness, including, without limitation, borrowings under our Credit Facilities. In any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of any of our secured indebtedness or 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. As of January 23, 2024, we had $485.6 million outstanding under the Holdings Credit Facility, $36.7 million, which included £22.9 million denominated in GBP and €0.7 million denominated in EUR that has been converted to U.S. dollars outstanding under the NMFC Credit Facility, $0 outstanding under the Unsecured Management Company Revolver, $186.4 million outstanding under the DB Credit Facility, and $2.8 million outstanding under the NMNLC Credit Facility II. The Notes will be structurally subordinated to the indebtedness and other liabilities of our subsidiaries. The Notes will be obligations exclusively of New Mountain Finance Corporation, and not of any of our subsidiaries. None of our subsidiaries will be a guarantor of the Notes, and the Notes will not be required to be guaranteed by any subsidiary we may acquire or create in the future. Any assets of our subsidiaries will not be directly available to satisfy the claims of our creditors, including holders of the Notes. Except to the extent we are a creditor with recognized claims against our subsidiaries, all claims of creditors of our subsidiaries will have priority over our equity interests in such entities (and therefore the claims of our creditors, including holders of the Notes) with respect to the assets of such entities. Even if we are recognized as a creditor of one or more of these entities, our claims would still be effectively subordinated to any security interests in the assets of any such entity and to any indebtedness or other liabilities of any such entity senior to our claims. Consequently, the Notes will be structurally subordinated to all indebtedness and other liabilities of any of our existing or future subsidiaries, including the SBA-guaranteed debentures. These entities may incur substantial indebtedness in the future, all of which would be structurally senior to the Notes. As of January 23, 2024, we had $300.0 million in SBA-guaranteed debentures outstanding. The indebtedness under the SBA-guaranteed debentures are structurally senior to 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 a material 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 those entities 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)(2) of the 1940 Act or any successor provisions, whether or not we continue to be subject to such provisions of the 1940 Act, but giving effect, in each case, to any exemptive relief granted to us by the SEC. Currently, these provisions generally prohibit us from incurring additional borrowings, including through the issuance 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; • 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 (including additional debt that matures prior to the maturity of the Notes), 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. Our existing indebtedness contains, and 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, trading levels, and prices of the Notes. There is no existing trading market for the Notes, and an active trading market for the Notes may not develop, which could limit your ability to sell the Notes and/or the market price of the Notes. The Notes will be a new issue of debt securities for which there is currently no trading market. We do not intend to apply for listing of the Notes on any securities exchange or for quotation of the Notes on any automated dealer quotation system. We cannot provide any assurances that an active trading market will develop or be maintained for the Notes or that you will be able to sell your Notes. 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, if any, general economic conditions, our financial condition, performance and prospects and other factors. Certain of the underwriters have advised us that they intend to make a market in the Notes, but they are not obligated to do so. Any market-making activity will be subject to limits imposed by law, general economic conditions, 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 or be maintained 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 adversely affected. Accordingly, you may be required to bear the financial risk of an investment in the Notes for an indefinite period of time. We may choose to redeem the Notes when prevailing interest rates are relatively low, which may 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 from time to time, especially when prevailing interest rates are lower than the rate borne by the Notes. If prevailing rates are lower at the time of redemption, you would not be able to reinvest the redemption proceeds in a comparable security at an effective interest rate as high as the interest rate on the Notes being redeemed. Our redemption right also may adversely impact your ability to sell the Notes as the optional redemption date or period approaches. We may not be able to repurchase the Notes upon a Change of Control Repurchase Event. Upon the occurrence of a Change of Control Repurchase Event, as defined in the indenture that governs the Notes, as supplemented, subject to certain conditions, we will be required to offer to repurchase some or all of the outstanding Notes at 100% of their principal amount, plus accrued and unpaid interest. The source of funds for that purchase of Notes will be our available cash or cash generated from our operations or other potential sources, including borrowings, investment repayments, sales of assets or sales of equity. We cannot assure you that sufficient funds from such sources will be available at the time of any Change of Control Repurchase Event to make required repurchases of Notes tendered. The terms of certain 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 the credit facility at that time and to terminate the credit facility. In addition, the documents governing our Unsecured Notes (with the exception of the 2023A Unsecured Notes) and 2022 Convertible Notes each contain a provision that would require us to offer to purchase the respective Unsecured Notes or 2022 Convertible Notes upon the occurrence of a fundamental change, such as a change in control. Any failure to comply with these provisions would constitute an event of default under each of the other agreements governing our indebtedness, including the indenture. Our future debt instruments also may contain similar restrictions and provisions. If the holders of the Notes exercise their right to require us to repurchase all the Notes upon a Change of Control Repurchase Event, the financial effect of this repurchase could cause a default under our future debt instruments, even if the Change of Control Repurchase Event itself would not cause a default. It is possible that we will not have sufficient funds at the time of the Change of Control Repurchase Event to make the required repurchase of the Notes or our other debt. See “Description of Notes—Offer to Repurchase Upon a Change of Control Repurchase Event” in this prospectus supplement for more information. The amount of our debt outstanding will increase as a result of this offering, and 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, including a default under the Credit Facilities, the indentures governing the Unsecured Notes and the 2022 Convertible Notes, or other indebtedness to which we may be a party, that is not waived by the required lenders or the holders, and the remedies sought by the lenders or 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, as applicable, in the instruments governing our indebtedness, we could be in default under the terms of the agreements governing such indebtedness (including the Credit Facilities, the Unsecured Notes, and the 2022 Convertible Notes). 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 commitment, cease making further loans and institute foreclosure proceedings against our assets, and we could be forced into bankruptcy or liquidation. In addition, any such default may constitute a default under the Notes, which could further limit our ability to repay our debt, including the Notes. 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, the Unsecured Notes, the 2022 Convertible Notes, and the Credit Facilities, 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 any Notes sold, 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, the holders of the Unsecured Notes, the 2022 Convertible 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 Unsecured Notes, the 2022 Convertible Notes, or our other debt and seek a waiver, we may not be able to obtain a waiver from the required lenders or the holders thereof. If this occurs, we would be in default under the Credit Facilities, the Unsecured Notes, the 2022 Convertible Notes, or other debt, the lenders or 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. A downgrade, suspension or withdrawal of the credit rating assigned by a rating agency to us or the Notes 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. 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 agencies if in their judgment future circumstances relating to the basis of the credit ratings, such as adverse changes in the Company, so warrant. 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. We employ leverage, which magnifies the potential for gain or loss on amounts invested and may increase the risk of investing in us. Borrowings, also known as leverage, magnify the potential for gain or loss on amounts invested and, therefore, increase the risks associated with investing in us. We borrow from and issue senior debt securities to banks and other lenders that is secured by a lien on our assets. Holders of these senior securities have fixed dollar claims on our assets that are superior to the claims of the holders of our securities. Leverage is generally considered a speculative investment technique. Any increase in our income in excess of interest payable on our outstanding indebtedness would cause our net income to increase more than it would have had we not incurred leverage, while any decrease in our income would cause net income to decline more sharply than it would have had we not incurred leverage. Such a decline could negatively affect our ability to make common stock distributions or scheduled debt payments, including with respect to the Notes, as defined below. There can be no assurance that our leveraging strategy will be successful. Our outstanding indebtedness imposes, and additional debt we may incur in the future will likely impose, financial and operating covenants that restrict our business activities, including limitations that could hinder our ability to finance additional loans and investments or to make the distributions required to maintain our RIC tax treatment. A failure to add new debt facilities or issue additional debt securities or other evidences of indebtedness in lieu of or in addition to existing indebtedness could have a material adverse effect on our business, financial condition or results of operations. As of January 23, 2024, we had $485.6 million outstanding under the Holdings Credit Facility, $36.7 million, which included £22.9 million denominated in GBP and €0.7 million denominated in EUR that has been converted to U.S. dollars, outstanding under the NMFC Credit Facility, $0 outstanding under the Unsecured Management Company Revolver, $186.4 million outstanding under the DB Credit Facility, and $2.8 million outstanding under the NMNLC Credit Facility II, $300.0 million in SBA-guaranteed debentures outstanding, $506.5 million in aggregate principal amount outstanding of the Unsecured Notes, and $260.0 million in aggregate principal amount outstanding of the 2022 Convertible Notes. We may incur additional indebtedness in the future, including, but not limited to, borrowings under the Credit Facilities or the issuance of additional debt securities in one or more public or private offerings, although there can be no assurance that we will be successful in doing so. Our ability to service our debt depends largely on our financial performance and is subject to prevailing economic conditions and competitive pressures. The amount of leverage that we employ at any particular time will depend on our management’s and our board of directors’ assessment of market and other factors at the time of any proposed borrowing. As a BDC, we are generally required to meet a coverage ratio at least equal to 150% of total assets to total borrowings and other senior securities, which include all of our borrowings (other than the SBIC Subsidiaries’ SBA-guaranteed debentures under the terms of SEC exemptive relief) and any preferred stock we may issue in the future. If this ratio declines below 150%, we may not be able to incur additional debt and may need to sell a portion of our investments to repay some debt when it is disadvantageous to do so, and we may not be able to make distributions to our stockholders. Additionally, because the SBA-guaranteed debentures are excluded from the calculation of our asset ratio coverage for purpose of compliance with the 1940 Act under the terms of our SEC exemptive relief, we may have a ratio of total assets to borrowings (including the SBA-guaranteed debentures) greater than 150% and our asset coverage ratio may not fully reflect the risks relating to our outstanding debt and capitalization. For example, our asset coverage ratio as of September 30, 2023 was 182.7%. However, including SBA-guaranteed debentures, our total assets to total borrowings would be 169.6% as of September 30, 2023. We are exposed to risks associated with the rising interest rate environment. Because we borrow to fund our investments (such as the issuance of the Notes), a portion of our net investment income may be dependent upon the difference between the interest rate at which we borrow funds and the interest rate at which we invest these funds. As a result, we can offer no assurance that a significant change in market interest rates will not have a material adverse effect on our net investment income. In response to recent market indicators showing a rise in inflation, the Federal Reserve has raised certain benchmark interest rates in an effort to slow inflation. This rising interest rate environment may impact our cost of capital and net investment income. Since March 2022, the Federal Reserve has been rapidly raising interest rates and has indicated that it would consider additional rate hikes in response to ongoing inflation concerns. In a rising interest rate environment, our net investment income would increase due to an increase in interest income generated by our investment portfolio. However, our cost of funds would also increase, which could also impact net investment income. It is possible that the Federal Reserve's tightening cycle could result in a recession in the United States, which would likely decrease interest rates. Alternatively, in a prolonged low interest rate environment, including a reduction of base rates, such as SONIA or SOFR, to zero, the difference between the total interest income earned on interest earning assets and the total interest expense incurred on interest bearing liabilities may be compressed, reducing our net interest income and potentially adversely affecting our operating results. We may hedge against such interest rate fluctuations by using standard hedging instruments such as futures, options, swaps, and forward contracts, subject to applicable legal requirements, including without limitation, all necessary registrations (or exemptions from registration) with the Commodity Futures Trading Commission. These activities may limit our ability to participate in the benefits of lower interest rates with respect to the hedged borrowings. Adverse developments resulting from changes in interest rates or hedging transactions could have a material adverse effect on our business, financial condition and results of operations. General interest rate fluctuations may have a substantial negative impact on our investments and investment opportunities and, accordingly, may have a material adverse effect on our ability to achieve our investment objective and the rate of return on invested capital. As a result, there can be no assurance that a significant change in market interest rates will not have a material adverse effect on our net investment income. | |
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | | |
| Long Term Debt [Table Text Block] | CAPITALIZATION The following table sets forth our capitalization: (a) on an actual basis as of September 30, 2023; (b) on an as adjusted basis for the sale of $115.0 million aggregate principal amount of the 2023A Unsecured Notes on November 13, 2023 (the “2023A Notes Issuance”); and (c) on an as adjusted basis for the sale of $ aggregate principal amount of the Notes offered hereby based on the purchase price paid by the underwriters of % of the aggregate principal amount of the Notes, after deducting estimated offering expenses of approximately $ payable by us, and the application of the proceeds thereof. This table should be read together with “Use of Proceeds” and “Underwriting (Conflicts of Interest)” included in this prospectus supplement and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in the accompanying prospectus and our most recent consolidated financial statements and notes thereto included or incorporated by reference in this prospectus supplement and the accompanying prospectus. As of Actual As Adjusted for the 2023A Notes Issuance As Adjusted for the 2023A Notes Issuance and this Offering (1) Cash and cash equivalents $ 83,265 $ 83,265 $ Borrowings: Holdings Credit Facility (2) 569,563 569,563 Unsecured Notes (3)(8) 391,500 391,500 2023A Unsecured Notes (3) — 115,000 SBA guaranteed debentures (3)(4) 300,000 300,000 2022 Convertible Notes (3) 260,236 260,236 NMFC Credit Facility (5) 192,115 80,945 DB Credit Facility (6) 186,400 186,400 NMNLC Credit Facility II (7) 2,858 2,858 Notes offered hereby (3) — — Total Borrowings 1,902,672 1,906,502 Net Assets: Common stock, par value $0.001 per share (200,000,000 shares authorized; 101,439,649 shares issued and outstanding) 1,014 1,014 Paid in capital in excess of par 1,312,352 1,312,352 Accumulated undistributed earnings 11,652 11,652 Total net assets of New Mountain Finance Corporation $ 1,325,018 $ 1,325,018 $ Total liabilities and net assets $ 3,227,690 $ 3,231,520 $ __________________ (1) Proceeds from the Notes offered hereby are reflected net of customary fees or underwriting commissions, as applicable, and estimated offering expenses, unless otherwise indicated. (2) As of January 23, 2024, the amount of borrowings outstanding under the Holdings Credit Facility was $485.6 million. (3) Before deduction of deferred financing costs. (4) As of January 23, 2024, the Company had $300.0 million in SBA-guaranteed debentures outstanding. (5) As of January 23, 2024, the amount of borrowings outstanding under the NMFC Credit Facility was $36.7 million, which included £22.9 million denominated in GBP and €0.7 million denominated in EUR that has been converted to U.S. dollars. (6) As of January 23, 2024, the amount of borrowings outstanding under the DB Credit Facility was $186.4 million. (7) As of January 23, 2024, the amount of borrowings outstanding under the NMNLC Credit Facility II was $2.8 million. (8) | |
| Long Term Debt, Principal | | $ 1,902,672 |
| Long Term Debt, Structuring [Text Block] | The Notes: • will be our direct, general unsecured, senior obligations; • will be issued in an aggregate principal amount of $ million; • will mature on , unless earlier redeemed or repurchased, as discussed below; • will bear cash interest from , 2024 at an annual rate of % payable semi-annually on and of each year, beginning on , 2024; • will be subject to redemption at our option as described under “—Optional Redemption;” • will be subject to repurchase by us at the option of the holders following a Change of Control Repurchase Event (as defined below under “—Offer to Repurchase Upon a Change of Control Repurchase Event”), at a repurchase price equal to 100% of the principal amount of the Notes to be repurchased, plus accrued and unpaid interest to, but excluding, the date of repurchase; • will be issued in denominations of $2,000 and integral multiples of $1,000 in excess thereof; and • will be represented by one or more registered Notes in global form, but in certain limited circumstances may be represented by Notes in definitive form. See “—Book-Entry, Settlement and Clearance.” The indenture does not limit the amount of debt that may be issued by us or our subsidiaries under the indenture or otherwise. The indenture does not contain any financial covenants and does not restrict us from paying dividends or issuing or repurchasing our other securities. Other than restrictions described under “—Offer to Repurchase Upon a Change of Control Repurchase Event” and “—Merger, Consolidation or Sale of Assets” below, the indenture does not contain any covenants or other provisions designed to afford holders of the Notes protection in the event of a highly leveraged transaction involving us or in the event of a decline in our credit rating as the result of a takeover, recapitalization, highly leveraged transaction or similar restructuring involving us that could adversely affect such holders. We may, without the consent of the holders, issue further additional Notes under the indenture with the same terms (except for the issue date, public offering price and, if applicable, the initial interest payment date) and with the same CUSIP numbers as the Notes in an unlimited aggregate principal amount; provided that such additional Notes must either be issued in a “qualified reopening” for U.S. federal income tax purposes or otherwise be part of the same issue as the Notes offered hereby for U.S. federal income tax purposes. | |
| Long Term Debt, Dividends and Covenants [Text Block] | Covenants In addition to the covenants described in the base indenture, the following covenants shall apply to the Notes. To the extent of any conflict or inconsistency between the base indenture and the following covenants, the following covenants shall govern: Merger, Consolidation or Sale of Assets The indenture provides that we will not merge or consolidate with or into any other person (other than a merger of a wholly owned subsidiary into us), or sell, transfer, lease, convey or otherwise dispose of all or substantially all our property ( provided that, for the avoidance of doubt, a pledge of assets pursuant to any secured debt instrument of NMFC or its Controlled Subsidiaries shall not be deemed to be any such sale, transfer, lease, conveyance or disposition) in any one transaction or series of related transactions unless: • we are the surviving person (the “Surviving Person”) or the Surviving Person (if other than us) formed by such merger or consolidation or to which such sale, transfer, lease, conveyance or disposition is made shall be a corporation or limited liability company organized and existing under the laws of the United States of America or any state or territory thereof; • the Surviving Person (if other than us) expressly assumes, by supplemental indenture in form reasonably satisfactory to the trustee, executed and delivered to the trustee by such Surviving Person, the due and punctual payment of the principal of, and premium, if any, and interest on, all the Notes outstanding, and the due and punctual performance and observance of all the covenants and conditions of the indenture to be performed by us; • immediately before and immediately after giving effect to such transaction or series of related transactions, no default or event of default shall have occurred and be continuing; and • we shall deliver, or cause to be delivered, to the trustee, an officers’ certificate and an opinion of counsel, each stating that such transaction and the supplemental indenture, if any, in respect thereto, comply with this covenant, that all conditions precedent in the indenture relating to such transaction have been complied with and that such supplemental indenture is valid, binding and enforceable against the successor company. For the purposes of this covenant, the sale, transfer, lease, conveyance or other disposition of all the property of one or more of our subsidiaries, which property, if held by us instead of such subsidiaries, would constitute all or substantially all of our property on a consolidated basis, shall be deemed to be the transfer of all or substantially all of our property. Although there is a limited body of case law interpreting the phrase “substantially all”, there is no precise established definition of the phrase under applicable law. Accordingly, in certain circumstances there may be a degree of uncertainty as to whether a particular transaction would involve “all or substantially all” of the properties or assets of a person. As a result, it may be unclear as to whether the merger, consolidation or sale of assets covenant would apply to a particular transaction as described above absent a decision by a court of competent jurisdiction. Although these types of transactions are permitted under the indenture, certain of the foregoing transactions could constitute a Change of Control that results in a Change of Control Repurchase Event permitting each holder to require us to repurchase the Notes of such holder as described above. An assumption by any person of obligations under the Notes and the indenture might be deemed for U.S. federal income tax purposes to be an exchange of the Notes for new Notes by the holders thereof, resulting in recognition of gain or loss for such purposes and possibly other adverse tax consequences to the holders. Holders should consult their own tax advisors regarding the tax consequences of such an assumption. Other Covenants • We agree that for the period of time during which the Notes are outstanding, we will not violate, whether or not we are subject thereto, Section 18(a)(1)(A) as modified by Section 61(a) of the 1940 Act or any successor provisions, but giving effect, in either case, to any exemptive relief granted to us by the SEC. • If, at any time, we are not subject to the reporting requirements of Sections 13 or 15(d) of the Exchange Act to file any periodic reports with the SEC, we agree to furnish to holders of the Notes and the trustee, for the period of time during which the Notes are outstanding, our audited annual consolidated financial statements, within 90 days of our fiscal year end, and unaudited interim consolidated financial statements, within 45 days of our fiscal quarter end (other than our fourth fiscal quarter). All such financial statements will be prepared, in all material respects, in accordance with GAAP, as applicable. Events of Default Each of the following is an event of default: (1) default in the payment of any interest upon any Note when due and payable and the default continues for a period of 30 days; (2) default in the payment of the principal of (or premium, if any, on) any Note when it becomes due and payable at its maturity, including upon any redemption date or required repurchase date; (3) our failure for 60 consecutive days after written notice from the trustee or the holders of at least 25% in principal amount of the Notes then outstanding to us and the trustee, as applicable, has been received to comply with any of our other agreements contained in the Notes or indenture; (4) default by us or any of our significant subsidiaries, as defined in Article 1, Rule 1-02 of Regulation S-X under the Exchange Act (but excluding any subsidiary which is (a) a non-recourse or limited recourse subsidiary, (b) a bankruptcy remote special purpose vehicle or (c) is not consolidated with NMFC for purposes of GAAP), with respect to any mortgage, agreement or other instrument under which there may be outstanding, or by which there may be secured or evidenced, any indebtedness for money borrowed in excess of $50 million in the aggregate of us and/or any such subsidiary, whether such indebtedness now exists or shall hereafter be created (i) resulting in such indebtedness becoming or being declared due and payable or (ii) constituting a failure to pay the principal or interest of any such debt when due and payable at its stated maturity, upon required repurchase, upon declaration of acceleration or otherwise, unless, in either case, such indebtedness is discharged, or such acceleration is rescinded, stayed or annulled, within a period of 30 calendar days after written notice of such failure is given to us by the trustee or to us and the trustee by the holders of at least 25% in aggregate principal amount of the Notes then outstanding; (5) Pursuant to Section 18(a)(1)(C)(ii) and Section 61 of the 1940 Act, or any successor provisions, on the last business day of each of 24 consecutive calendar months, any class of securities shall have an asset coverage (as such term is used in the 1940 Act) of less than 100%, giving effect to any amendments to such provisions of the 1940 Act or to any exemptive relief granted to us by the SEC; and (6) certain events of bankruptcy, insolvency, or reorganization involving us occur and remain undischarged or unstayed for a period of 90 days. If an event of default occurs and is continuing and a responsible officer of the Trustee has received written notice or has actual knowledge thereof, then and in every such case (other than an event of default specified in item (6) above) the trustee or the holders of at least 25% in principal amount of the outstanding Notes may declare the entire principal amount of Notes to be due and immediately payable, by a notice in writing to us (and to the trustee if given by the holders), and upon any such declaration such principal or specified portion thereof shall become immediately due and payable. Notwithstanding the foregoing, in the case of the events of bankruptcy, insolvency or reorganization described in item (6) above, 100% of the principal of and accrued and unpaid interest on the Notes will automatically become due and payable. At any time after a declaration of acceleration with respect to the Notes has been made and before a judgment or decree for payment of the money due has been obtained by the trustee, the holders of a majority in principal amount of the outstanding Notes, by written notice to us and the trustee, may rescind and annul such declaration and its consequences if (i) we have paid or deposited with the trustee a sum sufficient to pay all overdue installments of interest, if any, on all outstanding Notes, the principal of (and premium, if any, on) all outstanding Notes that have become due otherwise than by such declaration of acceleration and interest thereon at the rate or rates borne by or provided for in such Notes, to the extent that payment of such interest is lawful interest upon overdue installments of interest at the rate or rates borne by or provided for in such Notes, and all sums paid or advanced by the trustee and the reasonable compensation, expenses, disbursements and advances of the trustee, its agents and counsel, and (ii) all events of default with respect to the Notes, other than the nonpayment of the principal of (or premium, if any, on) or interest on such Notes that have become due solely by such declaration of acceleration, have been cured or waived. No such rescission will affect any subsequent default or impair any right consequent thereon. No holder of Notes will have any right to institute any proceeding, judicial or otherwise, with respect to the indenture, or for the appointment of a receiver or trustee, or for any other remedy under the indenture, unless: (i) such holder has previously given written notice to the trustee of a continuing event of default with respect to the Notes; (ii) the holders of not less than 25% in principal amount of the outstanding Notes shall have made written request to the trustee to institute proceedings in respect of such event of default; (iii) such holder or holders have offered to the trustee security or indemnity, or both, satisfactory to the trustee against the costs, expenses and liabilities to be incurred in compliance with such request; (iv) the trustee for 60 days after its receipt of such notice, request and offer of security and/or indemnity has failed to institute any such proceeding; and (v) no direction inconsistent with such written request has been given to the trustee during such 60-day period by the holders of a majority in principal amount of the outstanding Notes. Notwithstanding any other provision in the indenture, the holder of any Note shall have the right, which is absolute and unconditional, to receive payment of the principal of (and premium, if any, on) and interest, if any, on such Note on the stated maturity or maturity expressed in such Note (or, in the case of redemption, on the redemption date or, in the case of repayment at the option of the holders, on the repayment date) and to institute suit for the enforcement of any such payment, and such rights shall not be impaired without the consent of such holder. The trustee shall be under no obligation to exercise any of the rights or powers vested in it by the indenture at the request or direction of any of the holders of the Notes unless such holders shall have offered to the trustee security or indemnity satisfactory to the trustee against the costs, expenses and liabilities which might be incurred by it in compliance with such request or direction. Subject to the foregoing, the holders of a majority in principal amount of the outstanding Notes shall have the right to direct the time, method and place of conducting any proceeding for any remedy available to the trustee or exercising any trust or power conferred on the trustee with respect to the Notes, provided that (i) such direction shall not be in conflict with any rule of law or with this indenture, (ii) the trustee may take any other action deemed proper by the trustee that is not inconsistent with such direction and (iii) the trustee need not take any action that it determines in good faith may involve it in personal liability or be unjustly prejudicial (it being understood that the trustee does not have an affirmative duty to ascertain whether or not any such directions are unduly prejudicial to such holders) to the holders of Notes not consenting. The holders of not less than a majority in principal amount of the outstanding Notes may on behalf of the holders of all of the Notes waive any past default under the indenture with respect to the Notes and its consequences, except a default (i) in the payment of (or premium, if any, on) or interest, if any, on any Note, or (ii) in respect of a covenant or provision of the indenture which cannot be modified or amended without the consent of the holder of each outstanding Note affected. Upon any such waiver, such default shall cease to exist, and any event of default arising therefrom shall be deemed to have been cured, for every purpose, but no such waiver shall extend to any subsequent or other default or event of default or impair any right consequent thereto. We are required to deliver to the trustee, within 120 days after the end of each fiscal year (which fiscal year ends on December 31), an officers’ certificate stating that to the knowledge of the signers whether we are in default in the performance of any of the terms, provisions or conditions of the indenture. Within 90 days after the occurrence of any default under the indenture with respect to the Notes, the trustee shall transmit notice of such default actually known to a responsible officer of the trustee, unless such default shall have been cured or waived; provided , however, that, except in the case of a default in the payment of the principal of (or premium, if any, on) or interest, if any, on any Note, the trustee shall be protected in withholding such notice if and so long as it in good faith determines that withholding of such notice is in the interest of the holders of the Notes. Satisfaction and Discharge; Defeasance We may satisfy and discharge our obligations under the indenture by delivering to the securities registrar for cancellation all outstanding Notes or by depositing with the trustee or delivering to the holders, as applicable, after the Notes have become due and payable, or otherwise, moneys sufficient to pay all of the outstanding Notes and paying all other sums payable under the indenture by us. Such discharge is subject to terms contained in the indenture. In addition, the Notes are subject to defeasance and covenant defeasance, in each case, in accordance with the terms of the indenture. Defeasance means that, subject to the satisfaction of certain conditions, including, but not limited to, (i) depositing in trust for the benefit of the holders of the Notes a combination of money and/or U.S. government or U.S. government agency notes or bonds that will generate enough cash, in the opinion of a nationally recognized investment bank, appraisal firm or firm of independent public accountants, to make interest, principal and any other payments on the Notes on their various due dates and (ii) delivering to the trustee an opinion of counsel stating that (a) we have received from, or there has been published by, the Internal Revenue Service (the “IRS”) a ruling, or (b) since the date of execution of the Indenture, there has been a change in the applicable U.S. federal income tax law, in either case to the effect that, and based thereon, the holders of the Notes and any coupons appertaining thereto will not recognize income, gain or loss for U.S. federal income tax purposes as a result of such defeasance and will be subject to U.S. federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such defeasance had not occurred, we can legally release ourselves from all payment and other obligations on the Notes. Covenant defeasance means that, subject to the satisfaction of certain conditions, including, but not limited to, (i) depositing in trust for the benefit of the holders of the Notes a combination of money and/or U.S. government or U.S. government agency notes or bonds that will generate enough cash, in the opinion of a nationally recognized investment bank, appraisal firm or firm of independent public | |
| The Notes Will Be Unsecured Risk [Member] | | |
| General Description of Registrant [Abstract] | | |
| Risk [Text Block] | The Notes will be unsecured and therefore will be effectively subordinated to any existing and future secured indebtedness, including indebtedness under our Credit Facilities. The Notes will not be secured by any of our assets or any of the assets of any of our subsidiaries. As a result, the Notes will be effectively subordinated to any existing and future secured indebtedness we or our subsidiaries have outstanding as of the date of this prospectus supplement (including our Credit Facilities) or that we or our subsidiaries may incur in the future (or any indebtedness that is initially unsecured as to which we have granted or subsequently grant a security interest) to the extent of the value of the assets securing such indebtedness, including, without limitation, borrowings under our Credit Facilities. In any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of any of our secured indebtedness or 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. As of January 23, 2024, we had $485.6 million outstanding under the Holdings Credit Facility, $36.7 million, which included £22.9 million denominated in GBP and €0.7 million denominated in EUR that has been converted to U.S. dollars outstanding under the NMFC Credit Facility, $0 outstanding under the Unsecured Management Company Revolver, $186.4 million outstanding under the DB Credit Facility, and $2.8 million outstanding under the NMNLC Credit Facility II. | |
| The Notes Will Be Structurally Subordinated To The Indebtedness Risk [Member] | | |
| General Description of Registrant [Abstract] | | |
| Risk [Text Block] | The Notes will be structurally subordinated to the indebtedness and other liabilities of our subsidiaries. The Notes will be obligations exclusively of New Mountain Finance Corporation, and not of any of our subsidiaries. None of our subsidiaries will be a guarantor of the Notes, and the Notes will not be required to be guaranteed by any subsidiary we may acquire or create in the future. Any assets of our subsidiaries will not be directly available to satisfy the claims of our creditors, including holders of the Notes. Except to the extent we are a creditor with recognized claims against our subsidiaries, all claims of creditors of our subsidiaries will have priority over our equity interests in such entities (and therefore the claims of our creditors, including holders of the Notes) with respect to the assets of such entities. Even if we are recognized as a creditor of one or more of these entities, our claims would still be effectively subordinated to any security interests in the assets of any such entity and to any indebtedness or other liabilities of any such entity senior to our claims. Consequently, the Notes will be structurally subordinated to all indebtedness and other liabilities of any of our existing or future subsidiaries, including the SBA-guaranteed debentures. These entities may incur substantial indebtedness in the future, all of which would be structurally senior to the Notes. As of January 23, 2024, we had $300.0 million in SBA-guaranteed debentures outstanding. The indebtedness under the SBA-guaranteed debentures are structurally senior to the Notes. | |
| The Notes Contain 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 a material 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 those entities 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)(2) of the 1940 Act or any successor provisions, whether or not we continue to be subject to such provisions of the 1940 Act, but giving effect, in each case, to any exemptive relief granted to us by the SEC. Currently, these provisions generally prohibit us from incurring additional borrowings, including through the issuance 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; • 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 (including additional debt that matures prior to the maturity of the Notes), 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. Our existing indebtedness contains, and 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, trading levels, and prices of the Notes. | |
| No Existing Trading Market For The Notes Risk [Member] | | |
| General Description of Registrant [Abstract] | | |
| Risk [Text Block] | There is no existing trading market for the Notes, and an active trading market for the Notes may not develop, which could limit your ability to sell the Notes and/or the market price of the Notes. The Notes will be a new issue of debt securities for which there is currently no trading market. We do not intend to apply for listing of the Notes on any securities exchange or for quotation of the Notes on any automated dealer quotation system. We cannot provide any assurances that an active trading market will develop or be maintained for the Notes or that you will be able to sell your Notes. 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, if any, general economic conditions, our financial condition, performance and prospects and other factors. Certain of the underwriters have advised us that they intend to make a market in the Notes, but they are not obligated to do so. Any market-making activity will be subject to limits imposed by law, general economic conditions, 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 or be maintained 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 adversely affected. Accordingly, you may be required to bear the financial risk of an investment in the Notes for an indefinite period of time. | |
| Note Redemption Interest Rate Risk [Member] | | |
| General Description of Registrant [Abstract] | | |
| Risk [Text Block] | We may choose to redeem the Notes when prevailing interest rates are relatively low, which may 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 from time to time, especially when prevailing interest rates are lower than the rate borne by the Notes. If prevailing rates are lower at the time of redemption, you would not be able to reinvest the redemption proceeds in a comparable security at an effective interest rate as high as the interest rate on the Notes being redeemed. Our redemption right also may adversely impact your ability to sell the Notes as the optional redemption date or period approaches. We may not be able to repurchase the Notes upon a Change of Control Repurchase Event. Upon the occurrence of a Change of Control Repurchase Event, as defined in the indenture that governs the Notes, as supplemented, subject to certain conditions, we will be required to offer to repurchase some or all of the outstanding Notes at 100% of their principal amount, plus accrued and unpaid interest. The source of funds for that purchase of Notes will be our available cash or cash generated from our operations or other potential sources, including borrowings, investment repayments, sales of assets or sales of equity. We cannot assure you that sufficient funds from such sources will be available at the time of any Change of Control Repurchase Event to make required repurchases of Notes tendered. The terms of certain 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 the credit facility at that time and to terminate the credit facility. In addition, the documents governing our Unsecured Notes (with the exception of the 2023A Unsecured Notes) and 2022 Convertible Notes each contain a provision that would require us to offer to purchase the respective Unsecured Notes or 2022 Convertible Notes upon the occurrence of a fundamental change, such as a change in control. | |
| Default On Our Obligations Risk [Member] | | |
| General Description of Registrant [Abstract] | | |
| Risk [Text Block] | The amount of our debt outstanding will increase as a result of this offering, and 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, including a default under the Credit Facilities, the indentures governing the Unsecured Notes and the 2022 Convertible Notes, or other indebtedness to which we may be a party, that is not waived by the required lenders or the holders, and the remedies sought by the lenders or 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, as applicable, in the instruments governing our indebtedness, we could be in default under the terms of the agreements governing such indebtedness (including the Credit Facilities, the Unsecured Notes, and the 2022 Convertible Notes). 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 commitment, cease making further loans and institute foreclosure proceedings against our assets, and we could be forced into bankruptcy or liquidation. In addition, any such default may constitute a default under the Notes, which could further limit our ability to repay our debt, including the Notes. 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, the Unsecured Notes, the 2022 Convertible Notes, and the Credit Facilities, 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 any Notes sold, 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, the holders of the Unsecured Notes, the 2022 Convertible 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 Unsecured Notes, the 2022 Convertible Notes, or our other debt and seek a waiver, we may not be able to obtain a waiver from the required lenders or the holders thereof. If this occurs, we would be in default under the Credit Facilities, the Unsecured Notes, the 2022 Convertible Notes, or other debt, the lenders or 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. | |
| Downgrade, Suspension Or Withdrawal Of The 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 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. 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 agencies if in their judgment future circumstances relating to the basis of the credit ratings, such as adverse changes in the Company, so warrant. 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. | |
| Leverage Risk [Member] | | |
| General Description of Registrant [Abstract] | | |
| Risk [Text Block] | We employ leverage, which magnifies the potential for gain or loss on amounts invested and may increase the risk of investing in us. Borrowings, also known as leverage, magnify the potential for gain or loss on amounts invested and, therefore, increase the risks associated with investing in us. We borrow from and issue senior debt securities to banks and other lenders that is secured by a lien on our assets. Holders of these senior securities have fixed dollar claims on our assets that are superior to the claims of the holders of our securities. Leverage is generally considered a speculative investment technique. Any increase in our income in excess of interest payable on our outstanding indebtedness would cause our net income to increase more than it would have had we not incurred leverage, while any decrease in our income would cause net income to decline more sharply than it would have had we not incurred leverage. Such a decline could negatively affect our ability to make common stock distributions or scheduled debt payments, including with respect to the Notes, as defined below. There can be no assurance that our leveraging strategy will be successful. Our outstanding indebtedness imposes, and additional debt we may incur in the future will likely impose, financial and operating covenants that restrict our business activities, including limitations that could hinder our ability to finance additional loans and investments or to make the distributions required to maintain our RIC tax treatment. A failure to add new debt facilities or issue additional debt securities or other evidences of indebtedness in lieu of or in addition to existing indebtedness could have a material adverse effect on our business, financial condition or results of operations. As of January 23, 2024, we had $485.6 million outstanding under the Holdings Credit Facility, $36.7 million, which included £22.9 million denominated in GBP and €0.7 million denominated in EUR that has been converted to U.S. dollars, outstanding under the NMFC Credit Facility, $0 outstanding under the Unsecured Management Company Revolver, $186.4 million outstanding under the DB Credit Facility, and $2.8 million outstanding under the NMNLC Credit Facility II, $300.0 million in SBA-guaranteed debentures outstanding, $506.5 million in aggregate principal amount outstanding of the Unsecured Notes, and $260.0 million in aggregate principal amount outstanding of the 2022 Convertible Notes. We may incur additional indebtedness in the future, including, but not limited to, borrowings under the Credit Facilities or the issuance of additional debt securities in one or more public or private offerings, although there can be no assurance that we will be successful in doing so. Our ability to service our debt depends largely on our financial performance and is subject to prevailing economic conditions and competitive pressures. The amount of leverage that we employ at any particular time will depend on our management’s and our board of directors’ assessment of market and other factors at the time of any proposed borrowing. As a BDC, we are generally required to meet a coverage ratio at least equal to 150% of total assets to total borrowings and other senior securities, which include all of our borrowings (other than the SBIC Subsidiaries’ SBA-guaranteed debentures under the terms of SEC exemptive relief) and any preferred stock we may issue in the future. If this ratio declines below 150%, we may not be able to incur additional debt and may need to sell a portion of our investments to repay some debt when it is disadvantageous to do so, and we may not be able to make distributions to our stockholders. Additionally, because the SBA-guaranteed debentures are excluded from the calculation of our asset ratio coverage for purpose of compliance with the 1940 Act under the terms of our SEC exemptive relief, we may have a ratio of total assets to borrowings (including the SBA-guaranteed debentures) greater than 150% and our asset coverage ratio may not fully reflect the risks relating to our outstanding debt and capitalization. For example, our asset coverage ratio as of September 30, 2023 was 182.7%. However, including SBA-guaranteed debentures, our total assets to total borrowings would be 169.6% as of September 30, 2023. | |
| Rising Interest Rate Risk [Member] | | |
| General Description of Registrant [Abstract] | | |
| Risk [Text Block] | We are exposed to risks associated with the rising interest rate environment. Because we borrow to fund our investments (such as the issuance of the Notes), a portion of our net investment income may be dependent upon the difference between the interest rate at which we borrow funds and the interest rate at which we invest these funds. As a result, we can offer no assurance that a significant change in market interest rates will not have a material adverse effect on our net investment income. In response to recent market indicators showing a rise in inflation, the Federal Reserve has raised certain benchmark interest rates in an effort to slow inflation. This rising interest rate environment may impact our cost of capital and net investment income. Since March 2022, the Federal Reserve has been rapidly raising interest rates and has indicated that it would consider additional rate hikes in response to ongoing inflation concerns. In a rising interest rate environment, our net investment income would increase due to an increase in interest income generated by our investment portfolio. However, our cost of funds would also increase, which could also impact net investment income. It is possible that the Federal Reserve's tightening cycle could result in a recession in the United States, which would likely decrease interest rates. Alternatively, in a prolonged low interest rate environment, including a reduction of base rates, such as SONIA or SOFR, to zero, the difference between the total interest income earned on interest earning assets and the total interest expense incurred on interest bearing liabilities may be compressed, reducing our net interest income and potentially adversely affecting our operating results. We may hedge against such interest rate fluctuations by using standard hedging instruments such as futures, options, swaps, and forward contracts, subject to applicable legal requirements, including without limitation, all necessary registrations (or exemptions from registration) with the Commodity Futures Trading Commission. These activities may limit our ability to participate in the benefits of lower interest rates with respect to the hedged borrowings. Adverse developments resulting from changes in interest rates or hedging transactions could have a material adverse effect on our business, financial condition and results of operations. General interest rate fluctuations may have a substantial negative impact on our investments and investment opportunities and, accordingly, may have a material adverse effect on our ability to achieve our investment objective and the rate of return on invested capital. As a result, there can be no assurance that a significant change in market interest rates will not have a material adverse effect on our net investment income. | |
| Material Limitations With Making Available Preliminary Estimates [Member] | | |
| General Description of Registrant [Abstract] | | |
| Risk [Text Block] | There are material limitations with making available preliminary estimates of our financial results for the fiscal year ended December 31, 2023 prior to the completion of our and our auditor’s financial review procedures for such period. The preliminary financial estimates contained in the section entitled “Prospectus Supplement Summary — Recent Developments — Preliminary Estimates of Results as of December 31, 2023” are not a comprehensive statement of our financial results for the fiscal year ended December 31, 2023 and have not been audited, reviewed, compiled, examined or subject to any procedures by Deloitte, our independent registered public accounting firm, or any other independent accountants. Our consolidated financial statements for the fiscal year ended December 31, 2023 will not be available until after this offering is completed and, consequently, will not be available to you prior to making an investment decision. Our actual financial results for the fiscal year ended December 31, 2023 could differ materially from the preliminary financial estimates we have provided as a result of the completion of our customary financial year-end closing and related internal controls over financial reporting, final determination of the fair value of our portfolio investments, final adjustments, execution of our disclosures and control procedures and other developments arising between now and the time that our financial results for the fiscal year ended December 31, 2023 are finalized. The preliminary financial data included herein has been prepared by, and is the responsibility of, management. Deloitte has not audited, reviewed, compiled, examined or performed any procedures with respect to such preliminary estimates, and, accordingly, does not express an opinion or any other form of assurance with respect thereto. In addition, the preliminary financial estimates do not include all of the information regarding our financial condition and results of operations for the fiscal year ended December 31, 2023 that may be important to investors. | |
| Holdings Credit Facility [Member] | | |
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | | |
| Long Term Debt, Title [Text Block] | | Holdings Credit Facility (2) |
| Long Term Debt, Principal | | $ 569,563 |
| Unsecured Notes [Member] | | |
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | | |
| Long Term Debt, Title [Text Block] | | Unsecured Notes (3)(8) |
| Long Term Debt, Principal | | $ 391,500 |
| SBA guaranteed debentures [Member] | | |
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | | |
| Long Term Debt, Title [Text Block] | | SBA guaranteed debentures (3)(4) |
| Long Term Debt, Principal | | $ 300,000 |
| 2022 Convertible Notes [Member] | | |
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | | |
| Long Term Debt, Title [Text Block] | | 2022 Convertible Notes (3) |
| Long Term Debt, Principal | | $ 260,236 |
| NMFC Credit Facility [Member] | | |
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | | |
| Long Term Debt, Title [Text Block] | | NMFC Credit Facility (5) |
| Long Term Debt, Principal | | $ 192,115 |
| DB Credit Facility [Member] | | |
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | | |
| Long Term Debt, Title [Text Block] | | DB Credit Facility (6) |
| Long Term Debt, Principal | | $ 186,400 |
| NMNLC Credit Facility II [Member] | | |
| Capital Stock, Long-Term Debt, and Other Securities [Abstract] | | |
| Long Term Debt, Title [Text Block] | | NMNLC Credit Facility II (7) |
| Long Term Debt, Principal | | $ 2,858 |
