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N-2 - $ / shares | 12 Months Ended |
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | [1] | Dec. 31, 2021 | [1] | Dec. 31, 2020 | [1] | Dec. 31, 2019 | [1]
Cover [Abstract] |  |  |  |  |  |
Entity Central Index Key | 0000091847 |  |  |  |  |
Amendment Flag | true |  |  |  |  |
Amendment Description | EXPLANATORY NOTE - “The Registrant is filing this amendment to its Form N-CSR/A for the period ended December 31, 2024, originally filed with the Securities and Exchange Commission on March 7, 2025, (Accession Number 0001104659-25-021647), to update the Commentary Letter to Shareholders. The effect of these amendments had no impact to the net assets of the Fund. Other than the aforementioned revision, this Form N-CSR/A does not reflect events occurring after the filing of the original Form N-CSR/A, or modify or update the disclosures therein in any way.” |  |  |  |  |
Document Type | N-CSR/A |  |  |  |  |
Entity Registrant Name | Source Capital |  |  |  |  |
Document Period End Date | Dec. 31, 2024 |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Investment Objectives and Practices [Text Block] | Investment Objective and Strategies Investment Objective. The Fund's investment objective, which cannot be changed without shareholder approval, is to seek maximum total return for holders of the Fund's common stock (the "Common Shareholders") from both capital appreciation and investment income to the extent consistent with protection of invested capital. This means that the Fund does not invest in securities offering higher current yields or the greatest opportunities for capital appreciation if it is perceived that such investment would create undue risk of loss of capital. There can be no assurance that the Fund will achieve its investment objective or be able to structure its investment portfolio as anticipated. Investment Strategies. The Fund strives to accomplish its investment objective over a full market cycle, which First Pacific Advisors, LP ("FPA" or the "Adviser") generally considers to be five to seven years. The Fund employs a balanced strategy using equity and fixed-income investments to try to meet this goal. The Fund is co-managed by two of the Adviser's portfolio management teams: FPA Contrarian Value and FPA Absolute Fixed Income teams. Generally, under normal conditions, up to 70% of the Fund's assets will be allocated to equities, with the remaining assets allocated to public and private credit of varying quality. The Fund will vary its allocation over time as a function of the opportunity set based on the Contrarian Value team's evaluation of available investment opportunities. The Fund invests in public equities of large businesses from around the world, private-credit/loan instruments, and in fixed income instruments, both investment and non-investment grade. The portfolio managers utilize an investment philosophy that is consistent with the Adviser's overall value-oriented strategies. Equity Sleeve. The equity sleeve of the Fund is invested primarily in publicly traded common stocks of U.S. and non-U.S. companies that generally have market values greater than $10 billion at time of purchase, including companies in emerging market countries. These securities may be traded on major stock exchanges, regional stock exchanges, over-the-counter markets and other quotation systems. Equity securities held by the Fund include, but are not limited to, common stocks, preferred stocks, convertible securities, warrants, American Depositary Receipts ("ADRs"), and Global Depositary Receipts ("GDRs"). ADRs and GDRs are negotiable receipts similar to stock certificates issued by a depositary bank. The receipts evidence depositary securities, which in turn evidence underlying securities of a foreign issuer deposited with a custodian bank in the foreign issuer's home country. The Adviser seeks to invest in companies that currently appear out of favor or undervalued by the stock market, including those mired in bad news according to media headlines, but have a favorable outlook for growth in the Adviser's estimation over 5-10 years. The Adviser looks for businesses that are generally leaders in their industries, with significant competitive strength, solid balance sheets, and shareholder-centric management. The Adviser also looks for companies that may be of a lesser quality but that the Adviser believes possess upside potential that exceeds downside potential. The Adviser may also consider investing in special situations such as spin-offs, holding companies, and various other long opportunities. After identifying target companies for the Fund, the Adviser selects the companies whose equity securities are offered at a "substantial discount" to the Adviser's estimate of the company's worth or intrinsic value. In seeking a "substantial discount," the Adviser does not just seek securities that are priced lower than others, but looks for genuine bargains by seeking securities it believes have a compelling economic risk/reward proposition on an absolute basis. The Adviser may sell a security if its market price exceeds the Adviser's estimate of its intrinsic value, or if its economic risk/reward proposition is no longer compelling or less compelling than that of other investments found by the Adviser. Credit Sleeve. The credit sleeve of the Fund is invested primarily in public and private credit instruments of varying quality. The Adviser seeks investments that offer adequate compensation for credit risk and duration risk as interest rates and spreads change. A portion of the credit sleeve may be invested in publicly-traded fixed income instruments of varying credit quality, ("public portion"), but is primarily invested in securities rated BBB and below, including non-rated instruments. Note that "BBB," or equivalent, includes the plus (+) or minus (-) within the rating category. The public portion of the fixed income sleeve may include: (i) debt instruments issued by corporations, municipalities, governments, and their agencies and instrumentalities, including high yield bonds (sometimes called "junk" bonds), mortgage-backed pools, and obligations of supra-national agencies, including international development institutions that provide global financing and advisory services for economic development; (2) structured debt instruments, including commercial mortgage-backed securities (CMBS), residential mortgage-backed securities (RMBS), asset-backed securities (ABS), collateralized loan obligations (CLOs), and collateralized debt obligations (CDOs); (3) loans; and/or (4) structured notes, and similar such issues. These investments may include both U.S. and non-U.S. dollar denominated securities of U.S. and non-U.S. issuers, including securities initially offered and sold without registration pursuant to Rule 144A under the Securities Act of 1933. A portion of the credit sleeve may also be invested in private debt by origination, syndication, purchase on the secondary market, or by investing in a fund that holds these instruments to the extent permitted under the 1940 Act ("private portion"). The private portion of the credit sleeve seeks to invest in less liquid instruments that the Adviser believes offers an attractive risk/reward profile when compared to publicly-traded debt. Additional Information about Principal Investment Strategies To pursue the Fund's investment objective, the portfolio managers generally invest the Fund's assets in common stocks and other securities of international and U.S. companies and a diversified portfolio debt securities, cash and cash equivalents, including but not limited to the following securities. Fixed Income Instruments. The Fund may invest in fixed income instruments, such as high yield corporate debt securities, or bonds, or U.S. government debt securities. The issuer of a fixed income instrument pays the investor a fixed- or variable-rate of interest and normally must repay the amount borrowed on or before maturity. Certain bonds are "perpetual" in that they have no maturity date. Holders of fixed income bonds, as creditors, have a prior legal claim over common and preferred stockholders as to both income and assets of the issuer for the principal and interest due them and may have a prior claim over other creditors but would be subordinate to any existing secured lenders with higher priority in the issuer's capital structure. Fixed income instruments may be secured or unsecured. The investment return of corporate bonds reflects interest on the security and changes in the market value of the security. The market value of a corporate bond, especially a fixed-rate bond, will generally rise and fall inversely with interest rates. The value of intermediate- and longer-term corporate bonds normally fluctuates more in response to changes in interest rates than does the value of shorter-term corporate bonds. The market value of a corporate bond also may be affected by the credit rating of the corporation, the corporation's performance and perceptions of the corporation in the market place. There is a risk that the issuers of the securities may not be able to meet their obligations on interest or principal payments at the time called for by an instrument. Corporate fixed income instruments usually yield more than government or agency bonds due to the presence of credit risk. Equity Securities. Equity securities represent ownership shares in a company, and include securities that convey an interest in, may be converted into or give holders a right to purchase or otherwise acquire such ownership shares in a company. Common Stock. Common stocks represent shares of ownership in a company. After other company obligations are satisfied, common stockholders participate in company profits on a pro rata basis; profits may be paid out in dividends or reinvested in the company to help it grow. Increases and decreases in earnings are usually reflected in a company's stock price, so common stocks generally have the greatest appreciation and depreciation potential of all corporate securities. Ownership of common stock of a non-U.S. company may be represented by depositary receipts (which are certificates evidencing ownership of securities of a non-U.S. issuer). Preferred Stock. Preferred stock is typically subordinated to an issuer's senior debt, but senior to the issuer's common stock. Typically, preferred stock is structured as a long-dated or perpetual bond that distributes income on a regular basis. Issuers are permitted to skip ("non-cumulative" preferred stock) or defer ("cumulative" preferred stock) distributions. Preferred stock may be convertible into common stock and may contain call or maturity extension features. Warrants. Warrants are options to buy a stated number of shares of common stock at a specified price anytime during the life of the warrants (generally two or more years). They can be highly volatile and may have no voting rights, pay no dividends, and have no rights with respect to the assets of the entity issuing them. Non-U.S. Securities. The Fund may invest in securities of U.S.-dollar denominated non-U.S. issuers traded in the United States and in non-U.S. currency-denominated securities of non-U.S. issuers. Non-U.S. issuers are generally non-U.S. governments or companies either domiciled outside the U.S. or traded on non-U.S. exchanges, but the portfolio managers may make a different designation in certain circumstances. The non-U.S. issuers that the Fund may invest in include issuers with significant exposure to countries with developing economies and/or markets. Cash Equivalents. Cash equivalents are short-dated instruments that are readily convertible into cash. They may include bank obligations, commercial paper, and repurchase agreements. Bank obligations include certificates of deposit and bankers' acceptances. Commercial paper is a short-term promissory note issued by a corporation, which may have a floating or variable rate. Repurchase agreements are transactions under which the Fund purchases a security from a dealer counterparty and agrees to resell the security on a specified future date at the same price, plus a specified interest rate. Private Funds. The Fund may invest in unaffiliated and unregistered private investment funds, including those engaged in direct lending, managed by unaffiliated third-party external portfolio managers, who have discretionary authority over the Fund's investments in such private funds. U.S. Government Securities. The U.S. government sector includes fixed income securities issued by the U.S. government or its agencies and instrumentalities, such as U.S. Treasury and U.S. government agency securities, mortgage pass-through securities, including Government National Mortgage Association (Ginnie Mae), Federal Home Loan Mortgage Corporation (Freddie Mac) and the Federal National Mortgage Association (Fannie Mae), and agency mortgage-backed securities. Mortgage-Backed Securities. In addition to the U.S. government mortgage-pass through securities described above, the mortgage sector includes non-agency mortgage-backed securities, such as CMOs, commercial-mortgage backed securities, residential mortgage-backed securities and single-and multi-class pass-through securities. Mortgage-backed securities represent direct or indirect participation in mortgage loans secured by real property. Stripped Securities. Some of the U.S. government and non-agency mortgage-pass through and mortgage-backed securities in which the Fund invests are "stripped securities" i.e., they represent distributions of a specific source of cash flow on a pool of mortgage assets (e.g. interest payments, principal payments, prepayment penalties). The Fund may invest in stripped securities which can be highly sensitive to the rate of principal payments on the underlying mortgage securities. Stripped securities can produce higher yields than more traditional securities. However, stripped mortgage securities are highly sensitive to changes in interest and prepayment rates. As a result, such securities are extremely volatile. Asset-Backed Securities. Asset-backed securities are bonds issued through special purpose vehicles and backed by pools of loans, other receivables or other assets. Asset-backed securities are created from many types of assets, such as home equity loans, auto loans, student loans and credit card receivables. The credit quality of an asset-backed security depends on the quality and performance of the underlying assets and/or the level of any credit support provided by the securitization structure. The proportions of the Fund's portfolio invested in various types of asset-backed securities will depend on many factors, including the portfolio managers' appraisal of the economy, yield, credit quality, macroeconomic factors and capital appreciation potential, among others. To the extent the Fund focuses its investments in a particular type of asset-backed security, it may be more susceptible to economic conditions and risks affecting the type of asset-backed security. Corporate Debt Securities. The Fund may invest in corporate bonds, bank debt, notes and commercial paper of varying maturities and may invest in domestic bonds, bank debt and notes and those issued by non-U.S. corporations and governments. Issuers of these securities have a contractual obligation to pay interest at a specified rate on specified date and to repay principal on a specified maturity date, and may have provisions that allow the issuer to redeem or "call" the security before its maturity. Sovereign and Government-Related Debt. Sovereign debt includes securities issued or guaranteed by a non-U.S. sovereign government or its agencies, authorities, or political subdivisions. Government-related debt includes securities issued by non-U.S. regional or local governmental entities or government-controlled entities. In the event an issuer of sovereign debt or government- related debt is unable or unwilling to make scheduled payments of interest or principal, holders may be asked to participate in a restructuring of the debt and to extend further credit to the issuer. In the event of a default by such an issuer, there may be few or no effective legal remedies for collecting on such debt. Below Investment Grade Instruments. The Fund expects to invest in instruments that are classified as "higher-yielding" (and, therefore, higher-risk) investments. In most cases, such investments will be rated below investment grade by recognized rating agencies or will be unrated instruments determined by the Adviser to be appropriate investments for the Fund. While generally providing greater income and opportunity for gain, non-investment grade debt securities and similar debt instruments are subject to greater risks than securities or instruments that have higher credit ratings, including a high risk of default. The credit rating of a high yield security does not necessarily address its market value risk, and ratings may from time to time change, positively or negatively, to reflect developments regarding the issuer's financial condition. High yield securities and similar instruments often are considered to be speculative with respect to the capacity of the issuer to timely repay principal and pay interest or dividends in accordance with the terms of the obligation and may have more credit risk than higher rated securities. Lower grade securities and similar debt instruments may be particularly susceptible to economic downturns. It is likely that a prolonged or deepening economic recession could adversely affect the ability of borrowers issuing such securities and similar debt instruments to repay principal and pay interest on the instrument, increase the incidence of default and severely disrupt the market value of the securities and similar debt instruments. The prices of credit instruments generally are inversely related to interest rate changes; however, the price volatility caused by fluctuating interest rates of instruments also is inversely related to the interest rate of such instruments. Accordingly, lower grade instruments may be relatively less sensitive to interest rate changes than higher quality instruments of comparable maturity, because of their higher interest rate. This higher interest rate is what the investor receives in return for bearing greater credit risk. The higher credit risk associated with lower grade instruments potentially can have a greater effect on the value of such instruments than may be the case with higher quality issues of comparable maturity, and may be a substantial factor in the Fund's relative share price volatility. Convertible Securities. Convertible securities include bonds, debentures, notes, preferred stocks and other securities that entitle the holder to acquire common stock or other equity securities of the same or a different issuer. Convertible securities have general characteristics similar to both debt and equity securities. A convertible security generally entitles the holder to receive interest or preferred dividends paid or accrued until the convertible security matures or is redeemed, converted or exchanged. Before conversion, convertible securities have characteristics similar to non-convertible debt obligations. Convertible securities rank senior to common stock in a corporation's capital structure and, therefore, generally entail less risk than the corporation's common stock, although the extent to which such risk is reduced depends in large measure upon the degree to which the convertible security sells above its value as a debt obligation. A convertible security may be subject to redemption at the option of the issuer at a predetermined price. If a convertible security held by the Fund is called for redemption, the Fund would be required to permit the issuer to redeem the security and convert it to underlying common stock, or would sell the convertible security to a third party, which may have an adverse effect on the Fund's ability to achieve its investment objective. The price of a convertible security often reflects variations in the price of the underlying common stock in a way that non-convertible debt may not. The value of a convertible security is a function of (i) its yield in comparison to the yields of other securities of comparable maturity and quality that do not have a conversion privilege and (ii) its worth if converted into the underlying common stock. Repurchase Agreements. Repurchase agreements permit the Fund to maintain liquidity and earn income over periods of time as short as overnight. Repurchase agreements held by the Fund are fully collateralized by U.S. Government securities, or securities issued by U.S. Government agencies, or securities that are within the three highest credit categories assigned by established rating agencies (Aaa, Aa, or A by Moody's or AAA, AA or A by Standard & Poor's) or, if not rated by Moody's or Standard & Poor's, are of equivalent investment quality as determined by the Adviser. Such collateral is in the possession of the Fund's custodian. The collateral is evaluated daily to ensure its market value equals or exceeds the current market value of the repurchase agreements including accrued interest. In the event of default on the obligation to repurchase, the Fund has the right to liquidate the collateral and apply the proceeds in satisfaction of the obligation. The Fund may enter into repurchase agreements, under the terms of a Master Repurchase Agreement ("MRA"). The MRA permits the Fund, under certain circumstances including an event of default (such as bankruptcy or insolvency), to offset payables and/or receivables under the MRA with collateral held and/or posted to the counterparty and create one single net payment due to or from the Fund. However, bankruptcy or insolvency laws of a particular jurisdiction may impose restrictions on or prohibitions against such a right of offset in the event of a MRA counterparty's bankruptcy or insolvency. Pursuant to the terms of the MRA, the Fund receives securities as collateral with a market value in excess of the repurchase price to be received by the Fund upon the maturity of the repurchase transaction. Upon a bankruptcy or insolvency of the MRA counterparty, the Fund recognizes a liability with respect to such excess collateral to reflect the Fund's obligation under bankruptcy law to return the excess to the counterparty. Repurchase agreements outstanding at the end of the period are listed in the Fund's Portfolio of Investments. Covered Bonds. Covered bonds are debt securities issued by banks and are secured by collateral, typically mortgages. In the event of a default, bondholders also have an unsecured claim against the issuing bank if the underlying collateral is insufficient to repay amounts owing in respect of the bonds. Zero Coupon Securities. Special tax considerations are associated with investing in high yield bonds structured as zero coupon or pay-in-kind securities. The Fund does not receive any cash interest on such bonds until the bond matures, but the interest on these securities is accrued as income. Similarly, the inflation accretion income recorded on inflation-indexed notes is not received until maturity. The Internal Revenue Code requires the Fund to distribute such income to its shareholders. Thus, the Fund may have to dispose of securities when it might not want to in order to provide the cash necessary to make distributions to those shareholders who do not reinvest dividends. Temporary Investments. During temporary defensive periods, the Fund may deviate from its investment objective and investment strategies. During such periods, the Fund may invest all or a portion of its assets in certain short-term (less than one year to maturity) and medium-term (not greater than five years to maturity) debt securities or hold cash and cash equivalents. The short- and medium-term debt securities in which the Fund may invest include (i) obligations of the U.S. government, its agencies or instrumentalities; (ii) bank deposits and bank obligations (including certificates of deposit, time deposits and bankers' acceptances) of U.S. or foreign banks denominated in any currency; (iii) floating rate securities and other instruments denominated in any currency issued by various governments or international development agencies; (iv) finance company and corporate commercial paper and other short-term corporate debt obligations of U.S. or foreign corporations; (v) repurchase agreements with banks and broker-dealers with respect to such securities; and (vi) money market instruments. As part of its normal operations, the Fund may hold cash or invest a portion of its portfolio in short-term interest bearing U.S. dollar denominated securities, pending investments. Investments in such short-term debt securities can generally be sold easily and have limited risk of loss, but earn only limited returns. The portfolio managers' emphasis on a value-oriented investment approach could result in a portfolio that does not reflect the national economy, differs significantly from broad market indices and consists of securities considered by the average investor to be unpopular or unfamiliar. Percentage Investment Limitations. Unless otherwise stated, all percentage limitations on Fund investments listed herein will apply at the time of purchase. The Fund would not violate these limitations unless an excess or deficiency occurs or exists immediately after and as a result of an investment. Other Investments and Techniques. The Fund may invest in other types of securities and use a variety of investment techniques and strategies which are not principal investment strategies and are not described herein. These securities and techniques may subject the Fund to additional risks. Leverage. The Fund may utilize financial leverage for investment purposes (i.e., to purchase additional portfolio securities consistent with the Fund's investment objective and strategies and the 1940 Act and the rules thereunder). Although the Fund may use leverage as discussed below, there can be no assurance that the Fund will utilize financial leverage or that, if utilized, the Fund will be successful during any period in which leverage is employed. Generally speaking, if the Fund can invest the proceeds from financial leverage in portfolio securities that have higher rates of return than the costs of such financial leverage and other expenses of the Fund, then the Common Shareholders would have a net benefit. As a closed-end investment company, the Fund may issue senior securities, such as shares of preferred stock ("Preferred Stock"), consistent with the 1940 Act and the rules thereunder. The Fund currently does not have any senior securities outstanding. Under the 1940 Act, the Fund generally may not declare any dividend or other distribution upon any class of its capital shares, or purchase any such capital shares, unless the aggregate indebtedness of the Fund has, at the time of the declaration of such dividend or distribution, or at the time of any such purchase, an asset coverage of at least 300% after deducting the amount of such dividend, distribution or purchase price, as the case may be. With respect to asset coverage for Preferred Stock, if applicable, under the 1940 Act, the Fund is not permitted to issue Preferred Stock unless immediately after such issuance the NAV of the Fund's portfolio is at least 200% of the liquidation value of the outstanding Preferred Stock (i.e., such liquidation value may not exceed 50% of the Fund's total net assets (less the Fund's obligations under senior securities representing indebtedness)). In addition, the Fund is not permitted to declare any cash dividend or other distribution on shares of the Fund's common stock (the "Common Shares") unless, at the time of such distribution, the NAV of the Fund's portfolio (determined after deducting the amount of such dividend or other distribution) is at least 200% of such liquidation value. If the Fund uses a combination of borrowing (including notes and other securities representing indebtedness) and issuing Preferred Stock, the maximum asset coverage required would be between 300% and 200% depending on the relative amounts of borrowings and Preferred Stock. Leverage creates risks for holders of the Common Shares, including the likelihood of greater volatility in the NAV and market price of, and distributions on, the Common Shares. There is a risk that fluctuations in the distribution rates on any outstanding Preferred Stock or notes may adversely affect the return to the holders of the Common Shares. If the income from the investments purchased with such funds is not sufficient to cover the cost of leverage, the return on the Fund will be less than if leverage had not been used, and therefore the amount available for distribution to Common Shareholders will be reduced. The Fund in its reasonable judgment nevertheless may determine to maintain the Fund's leveraged position if it deems such action to be appropriate in the circumstances. Changes in the value of the Fund's investment portfolio (including investments bought with the proceeds of leverage) will be borne entirely by the Common Shareholders. If there is a net decrease (or increase) in the value of the Fund's investment portfolio, the leverage will decrease (or increase) the NAV per common share to a greater extent than if the Fund were not leveraged. The use of leverage by the Fund may magnify the Fund's losses when there is a decrease in the value of a Fund investment and even totally eliminate the Fund's equity in its portfolio or a Common Shareholder's equity in the Fund. During periods in which the Fund is using leverage, the fees paid by the Fund for investment advisory services will be higher than if the Fund did not use leverage because the investment advisory fees paid will be calculated on the basis of the Fund's total net assets, which include proceeds from leverage. If Preferred Stock are used, holders of Preferred Stock will have rights to elect a minimum of two directors. This voting power may negatively affect Common Shareholders, and the interests of holders of Preferred Stock may otherwise differ from the interests of Common Shareholders. Any directors elected by preferred shareholders will represent both Common Shareholders and holders of Preferred Stock. Such directors may have a conflict of interest when the interests of Common Shareholders differ from those of holders of Preferred Stock. Capital raised through leverage will be subject to distribution and/or interest payments, which may exceed the income and appreciation on the assets purchased. The issuance of Preferred Stock or notes involves offering expenses and other costs and may limit the Fund's freedom to pay distributions on Common Shares or to engage in other activities. All costs of offering and servicing any of the leverage methods the Fund may use will be borne entirely by the Fund's Common Shareholders. The interests of persons with whom the Fund enters into leverage arrangements (such as bank lenders, note holders and preferred shareholders) will not necessarily be aligned with the interests of the Fund's Common Shareholders and such persons will have claims on the Fund's assets that are senior to those of the Fund's Common Shareholders. Leverage creates an opportunity for a greater return per common share, but at the same time it is a speculative technique that will increase the Fund's exposure to capital risk. In connection with a credit facility, any lender may impose specific restrictions as a condition to borrowing. The credit facility fees may include, among other things, up front structuring fees and ongoing commitment fees (including fees on amounts undrawn on the facility) in addition to the traditional interest expense on amounts borrowed. The credit facility may involve a lien on the Fund's assets. Similarly, to the extent the Fund issues Preferred Stock or notes, the Fund currently intends to seek an AAA or equivalent credit rating from one or more NRSROs on any Preferred Stock or notes it issues and the Fund may be subject to fees, covenants and investment restrictions required by the NRSRO as a result. Such covenants and restrictions imposed by a NRSRO or lender may include asset coverage or portfolio composition requirements that are more stringent than those imposed on the Fund by the 1940 Act. It is not anticipated that these covenants or restrictions will significantly impede the Adviser in managing the Fund's portfolio in accordance with its investment objective and policies. Nonetheless, if these covenants or guidelines are more restrictive than those imposed by the 1940 Act, the Fund may not be able to utilize as much leverage as it otherwise could have, which could reduce the Fund's investment returns. In addition, the Fund expects that any notes it issues or credit facility it enters into would contain covenants that, among other things, may impose geographic exposure limitations, credit quality minimums, liquidity minimums, concentration limitations and currency hedging requirements on the Fund. These covenants would also likely limit the Fund's ability to pay distributions in certain circumstances, incur additional debt, change fundamental investment policies and engage in certain transactions, including mergers and consolidations. Such restrictions could cause the Adviser to make different investment decisions than if there were no such restrictions and could limit the ability of the Board and Common Shareholders to change fundamental investment policies. The Fund's willingness to utilize leverage, and the amount of leverage the Fund will assume, will depend on many factors, the most important of which are market conditions and interest rates. Successful use of a leveraging strategy may depend on the Fund's ability to predict correctly interest rates and market movements, and there is no assurance that a leveraging strategy will be successful during any period in which it is employed. Any leveraging of the Common Shares cannot be achieved until the proceeds resulting from the use of leverage have been invested in accordance with the Fund's investment objective and policies. If the Fund uses leverage, the amount of fees paid to the Adviser for its services will be higher than if the Fund does not use leverage because the fees paid are calculated based on total net assets, which includes assets purchased with leverage. Therefore, the Adviser has a financial incentive to use leverage, which creates a conflict of interest between the Adviser and Common Shareholders, as only the Common Shareholders would bear the fees and expenses incurred through the Fund's use of leverage. The Fund's willingness to use leverage, and the extent to which leverage is used at any time, will depend on many factors, including among other things, the Adviser's assessment of the yield curve, interest rate trends, market conditions and other factors. |  |  |  |  |
Risk Factors [Table Text Block] | RISK FACTORS An investment in the Fund's Common Shares may be speculative in that it involves a high degree of risk and should not constitute a complete investment program. Before making an investment decision, you should carefully consider the following risk factors. If any of these risks occurs, the Fund's results of operations could be materially and adversely affected. If this were to happen, the price of the Fund's Common Shares could decline significantly and you could lose all or a part of your investment. Risks Associated with Investing in Equities. Equity securities, generally common stocks, preferred stocks and/or depositary receipts held by the Fund may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect the securities markets generally, such as adverse changes in economic or political conditions, the general outlook for corporate earnings, interest rates or investor sentiment. Sustained periods of market volatility, either globally or in any jurisdiction in which the Fund invests, may increase the risks associated with an investment in the Fund. Equity securities may also lose value because of factors affecting an entire industry or sector, such as increases in production costs or factors directly related to a specific company, such as decisions made by its management. Common stock of an issuer in the Fund's portfolio may decline in price if the issuer fails to make anticipated dividend payments because, among other reasons, the issuer of the security experiences a decline in its financial condition. Common stock is subordinated to preferred stocks, bonds and other debt instruments in a company's capital structure, in terms of priority with respect to corporate income, and therefore will be subject to greater dividend risk than preferred stocks or debt instruments of such issuers. In addition, while broad market measures of common stocks have historically generated higher average returns than fixed income securities, common stocks have also experienced significantly more volatility in those returns. Because preferred stock is generally junior to debt securities and other obligations of the issuer, deterioration in the credit quality of the issuer will cause greater changes in the value of a preferred stock than in a more senior debt security with similar stated yield characteristics. Fixed Income Instruments Risk. The Fund invests in loans and other types of fixed income instruments and securities. Such investments may be secured, partially secured or unsecured and may be unrated, and whether or not rated, may have speculative characteristics. The market price of the Fund's investments will change in response to changes in interest rates and other factors. Generally, when interest rates rise, the values of fixed income instruments fall, and vice versa. In typical interest rate environments, the prices of longer-term fixed income instruments generally fluctuate more than the prices of shorter-term fixed income instruments as interest rates change. These risks may be greater in the current market environment of historically low interest rates. The obligor of a fixed income instrument may not be able or willing to pay interest or to repay principal when due in accordance with the terms of the associated agreement. An obligor's willingness and ability to pay interest or to repay principal due in a timely manner may be affected by, among other factors, its cash flow. Commercial bank lenders may be able to contest payments to the holders of other debt obligations of the same obligor in the event of default under their commercial bank loan agreements. See also "Risks Factors—Credit Risk." The Fund invests in loans and other similar forms of debt. Such forms of indebtedness are different from traditional debt securities in that debt securities are part of a large issue of securities to the public and loans and similar debt instruments may not be securities, but may represent a specific commercial loan to a borrower. Loan participations typically represent direct participation, together with other parties, in a loan to a corporate borrower, and generally are offered by banks or other financial institutions or lending syndicates. Participation interests will only give the Fund the right to receive payments of principal and interest from the institution participating out the loan, and not directly from the obligor, and will typically give the Fund limited consent rights to amendments of the underlying credit documents. The Fund may participate in such syndications, or can buy part of a loan, becoming a part lender. When purchasing indebtedness and loan participations, the Fund assumes the credit risk associated with the corporate borrower and may assume the credit risk associated with an interposed bank or other financial intermediary. Members of a syndicate in which the Fund participates may have different and sometimes superior rights to those of the Fund. Where the Fund invests as a sub-participant in syndicated debt, it may be subject to certain risks as a result of having no direct contractual relationship with the underlying borrower. As a result, the Fund will generally be dependent on the lender to enforce its rights and obligations under the loan arrangements in the event of a default by the underlying borrower and will generally not have any direct rights against the underlying borrower, any direct rights in the collateral, if any, securing such borrowing, or any right to deal directly with such borrower. The lender will, in general, retain the right to determine whether remedies provided for in the underlying loan arrangement will be exercised, or waived. In the event that the Fund enters into such an investment, there can be no assurance that its ability to realize upon a participation will not be interrupted or impaired in the event of the bankruptcy or insolvency of any of the borrower or the lender or that in such circumstances, the Fund will benefit from any set-off between the lender and the borrower. Successful claims by third parties arising from these and other risks may be borne by the Fund. The Fund may invest in debtor-in-possession financings. In such investments there is a risk that the underlying borrower may not successfully come out of Chapter 11 proceedings and may be forced to liquidate its assets in which case the Fund's only recourse will be against the security provided by the borrower (which may not be sufficient to cover related losses). Interest Rate Risk. As with most funds that invest in debt securities, changes in interest rates are one of the most important factors that could affect the value of an investment in the Fund. Interest rate risk is the risk that debt securities will decline in value because of increases in interest rates. Rising interest rates tend to cause the prices of debt securities (especially those with longer maturities) and the Fund's share price to fall. Generally, bonds with longer maturities have a greater duration and thus are subject to greater price volatility from changes in interest rates. Adjustable-rate instruments also react to interest rate changes in a similar manner although generally to a lesser degree (depending, however, on the characteristics of the reset terms, including the index chosen, frequency of reset and reset caps or floors, among other things). Low interest rates may pose heightened risks with respect to investments in fixed income securities. When interest rates rise from a low level, fixed income securities markets may experience lower prices, increased volatility and lower liquidity. The negative impact on fixed in-come securities from rate increases, regardless of the cause, could be swift and significant, which could result in significant losses by the Fund, even if such rate increases are anticipated by the portfolio managers. The Fund may be subject to heightened interest rate risk because the Federal Reserve has raised, and may continue to raise, interest rates. During periods of increasing interest rates the Fund may experience high redemptions and, as a result, increased portfolio turnover, which could increase the costs that the Fund incurs and may negatively impact the Fund's performance. Market Risk. The market price of investments owned by the Fund may go up or down, sometimes rapidly or unpredictably. Fund investments may decline in value due to factors affecting the overall markets, or particular industries or sectors. The value of a holding may decline due to general market conditions that are not specifically related to a particular issuer, such as real or perceived adverse economic conditions, changes in the general outlook for an issuer's financial condition, national or international political events, war, acts of terrorism, inflation/deflation, market disruptions, public health emergencies, such as the spread of infectious illness or disease, natural disasters, changes in interest or currency rates, domestic or international monetary policy or adverse investor sentiment generally. The value of a holding may also decline due to factors that affect a particular industry or industries, such as competitive conditions within an industry or government regulations. In addition, the Fund may rely on various third-party sources to calculate its net asset value. Errors or systems failures and other technological issues may adversely impact the Fund's calculation of its net asset value, and such net asset value calculation issues may result in inaccurately calculated net asset values, delays in net asset value calculation and/or the inability to calculate net asset values over extended periods. The Fund may be unable to recover any losses associated with such failures. In addition, issuers of securities in which the Fund invests are subject to potential operational and information security risks from breaches in cyber security, including cyber-attacks. A breach in cyber security refers to both intentional and unintentional cyber events and may include, among other events, the stealing or corrupting of data maintained online or digitally, denial of service attacks on websites, the unauthorized release or misuse of confidential information or various other forms of cyber security breaches. Such cyber events could result in material adverse consequences for such issuers, and may cause the Fund's investment in such portfolio companies to lose value. Many countries have experienced outbreaks of infectious illnesses in recent decades, including swine flu, avian influenza, SARS and, more recently, COVID-19. The global outbreak of COVID-19 in early 2020 has resulted in various disruptions, including travel and border restrictions, quarantines, supply chain disruptions, labor restrictions, lower consumer demand and general market uncertainty. In 2022, many countries lifted some or all restrictions related to COVID-19. However, this outbreak and any future outbreaks may continue to adversely affect the global economy, financial markets and the economies of certain nations and individual issuers, any of which may negatively impact the Fund and its holdings. Similar consequences could arise as a result of the spread of other infectious diseases. As with other serious economic disruptions, governmental authorities and regulators have responded in recent years to such disruption with significant fiscal and monetary policy changes. These included providing direct capital infusions into companies, introducing new monetary programs, and lowering interest rates. In some cases, these responses resulted in, and may in the future result in, negative interest rates and higher inflation. The Federal Reserve Board has since reversed this policy by imposing a series of federal funds rate hikes, as noted above, over the course of 2022. These actions, including their possible unexpected or sudden reversal or potential ineffectiveness, could further increase volatility in securities and other financial markets, reduce market liquidity, continue to cause higher inflation, heighten investor uncertainty and adversely affect the value of the Fund's investments and the performance of the Fund. Management Risk. The Fund is subject to management risk as an actively managed investment portfolio. The portfolio managers will apply investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these will produce the desired results. The portfolio managers' opinion about the intrinsic worth or creditworthiness of a company or security may be incorrect, the portfolio managers may not make timely purchases or sales of securities for the Fund, the Fund's investment objective may not be achieved, or the market may continue to undervalue the Fund's securities. In addition, the Fund may not be able to quickly dispose of certain securities holdings. The frequency of trading within the Fund impacts portfolio turnover rates, which are shown in the financial highlights table. A higher rate of portfolio turnover could produce higher trading costs and taxable distributions, which would detract from the Fund's performance. Moreover, there can be no assurance that all of the Adviser's personnel will continue to be associated with the Adviser for any length of time. The loss of services of one or more key employees of the Adviser, including the portfolio managers, could have an adverse impact on the Fund's ability to achieve its investment objective. Certain securities or other instruments in which the Fund seeks to invest may not be available in the quantities desired. In such circumstances, the portfolio managers may determine to purchase other securities or instruments as substitutes. Such substitute securities or instruments may not perform as intended, which could result in losses to the Fund. In addition, the Fund and its service providers are subject to potential operational and information security risks from breaches in cyber security. A breach in cyber security refers to both intentional and unintentional cyber events and may include, among other events, the stealing or corrupting of data maintained online or digitally, denial of service attacks on websites, the unauthorized release or misuse of confidential information or various other forms of cyber-attacks. Cyber-security breaches affecting the Fund or the Adviser, custodian, transfer agent, intermediaries, trading counterparties or other third-party service providers may adversely impact the Fund. For instance, cyber security breaches may interfere with the processing of shareholder transactions, impact the Fund's ability to calculate its net asset value, cause the release of private shareholder information or confidential (including proprietary) company information, impede trading, result in violations of applicable privacy and other laws, subject the Fund to regulatory fines, cause the Fund and its shareholders to experience financial losses, or cause reputational damage and/or otherwise disrupt normal business operations. The Fund may also incur additional costs for cyber security risk management purposes. The Fund has established business continuity plans and risk management systems reasonably designed to seek to reduce the risks associated with cyber-attacks, but there are inherent limitations in these plans and systems. For example, the nature of malicious cyber-attacks is becoming increasingly sophisticated; the Fund cannot control the cyber- security systems of issuers or third-party service providers; and certain current risks may not have been identified and additional unknown threats may emerge in the future. There is also a risk that cyber security breaches may not be detected. The Fund and its shareholders could be negatively impacted as a result. Credit Risk. Credit risk refers to the likelihood that an issuer will default on the payment of principal and/or interest on a security. Various factors could affect the issuer's actual or perceived willingness or ability to make timely interest or principal payments, including changes in the issuer's financial condition or in general economic conditions. In addition, lack of or inadequacy of collateral or credit enhancements for a fixed income security may affect its credit risk. Below investment grade securities predominantly have more risk with respect to the issuer's ability to pay interest and repay principal when due, and therefore involve a greater risk of default or nonpayment. Credit risk of a security may change over time, and securities which are rated by ratings agencies are often reviewed and may be subject to downgrade. However, ratings are only opinions of the agencies issuing them and are not absolute guarantees as to quality. Call Risk. Issuers of callable bonds are permitted to redeem these bonds before their final maturity. Issuers may call outstanding securities before maturity for a number of reasons, including decreases in prevailing interest rates or improvements to the issuer's credit profile. If an issuer calls a security in which the Fund is invested, the Fund could lose potential price appreciation and be forced to reinvest the proceeds in securities that bear a lower interest rate or more credit risk. Risks Associated with Investing in Smaller-Cap and Mid-Cap Companies. The prices of securities of smaller-cap and mid-cap companies tend to fluctuate more widely than those of larger, more established companies. Smaller-cap and mid-cap companies may have limited product lines, markets or financial resources or may depend on the expertise of a few people and may be subject to more abrupt or erratic market movements than securities of larger, more established companies or market averages in general. In addition, these companies often have shorter operating histories and are more reliant on key products or personnel than larger companies. The securities of smaller- or medium-sized companies are often traded over-the-counter, and may not be traded in volumes typical of securities traded on a national securities exchange. Securities of such issuers may lack sufficient market liquidity to effect sales at an advantageous time or without a substantial drop in price. Risks Associated with Investing in Non-U.S. Securities. Non-U.S. investments involve special risks not present in U.S. investments that can increase the chances that the Fund will lose money. Certain of the risks noted below may also apply to securities of U.S. issuers with significant non-U.S. operations. Investments in non-U.S. securities involve the following risks: • the economies of some non-U.S. markets often do not compare favorably with that of the U.S. in areas such as growth of gross domestic product, reinvestment of capital, resources, and balance of payments. Some of these economies may rely heavily on particular industries or non-U.S. capital. They may be more vulnerable to adverse diplomatic developments, the imposition of economic sanctions against a country, changes in inter-national trading patterns, trade barriers and other protectionist or retaliatory measures; • governmental actions such as the imposition of capital controls, nationalization of companies or industries, expropriation of assets or the imposition of punitive taxes—may adversely affect investments in non-U.S. markets. Such governments may also participate to a significant degree, through ownership or regulation, in their respective economies; • the governments of certain countries may prohibit or substantially restrict foreign investing in their capital markets or in certain industries. This could severely affect security prices. This could also impair the Fund's ability to purchase or sell non-U.S. securities or transfer its assets or income back to the U.S. or otherwise adversely affect the Fund's operations; • other non-U.S. market risks include foreign exchange controls, difficulties in pricing securities, defaults on non-U.S. government securities, difficulties in enforcing favorable legal judgments in non-U.S. courts, and political and social instability. Legal remedies available to investors in some non-U.S. countries are less extensive than those available to investors in the U.S. Many non-U.S. governments supervise and regulate stock exchanges, brokers and the sale of securities to a lesser extent than the U.S. government does. Corporate governance may not be as robust as in more developed countries. As a result, protections for minority investors may not be strong, which could adversely affect the Fund's non-U.S. holdings or exposures; • accounting standards in other countries are not necessarily the same as in the U.S. If the accounting standards in another country do not require as much disclosure or detail as U.S. accounting standards, it may be harder for the portfolio managers to completely and accurately determine a company's financial condition or otherwise assess a company's creditworthiness; • because there may be fewer investors on non-U.S. exchanges and smaller numbers of shares traded each day, it may be difficult for the Fund to buy and sell securities on those exchanges. In addition, prices of non-U.S. securities may be more volatile than prices of securities traded in the U.S.; • non-U.S. markets may have different clearance and settlement procedures. In certain markets, settlements may not keep pace with the volume of securities transactions. If this occurs, settlement may be delayed, and the Fund's assets may be uninvested and may not be earning returns. The Fund also may miss investment opportunities or not be able to sell an investment or reduce its exposure because of these delays; • changes in currency exchange rates will affect the value of the Fund's non-U.S. holdings or exposures; • the costs of non-U.S. securities transactions tend to be higher than those of U.S. transactions, increasing the transaction costs paid directly or indirectly by the Fund; • international trade barriers or economic sanctions against non-U.S. countries may adversely affect the Fund's non-U.S. holdings or exposures; and • global economies are increasingly interconnected, which increases the possibilities that conditions in one country region or financial market may adversely impact a different country, region or financial market. The severity or duration of these conditions may be affected if one or more countries leave the European Union, the euro currency or if other policy changes are made by governments or quasigovernmental organizations. The Fund may invest in depositary receipts, including American Depositary Receipts ("ADRs"), European Depositary Receipts ("EDRs"), Global Depositary Receipts ("GDRs") and Global Depositary Notes ("GDNs"), which are certificates evidencing ownership of securities of a non-U.S. issuer. Depositary receipts may be sponsored by the non-U.S. issuer or unsponsored. Depositary receipts are subject to the risks of changes in currency or exchange rates and the risks of investing in non-U.S. securities that they evidence or into which they may be converted. The issuers of unsponsored depositary receipts are not obligated to disclose information that would be considered material in the U.S., or to pass through to shareholders any voting rights with respect to the deposited securities. Therefore, there may be less information available regarding these issuers, and there may not be a correlation between such information and the market value of the depositary receipts. Risks Associated with Investing in Emerging Market. In investing the Fund's assets, the portfolio managers focus on countries with established rules of law and political systems that allow for transparent and unbiased enforcement of those laws, although there can be no assurance that the Fund's assets will in all cases be invested in countries that offer such protections, and such investments may be subject to heightened risk. The Fund's investments in non-U.S. issuers in developing or emerging market countries may involve increased exposure to changes in economic, social and political factors as compared to investments in more developed countries. The economies of most emerging market countries are in the early stage of capital market development and may be dependent on relatively fewer industries. As a result, their economic systems are still evolving. Their legal and political systems may also be less stable than those in developed economies. Securities markets in these countries can also be smaller, and there may be increased settlement risks. Emerging market countries often suffer from currency devaluation and higher rates of inflation. Due to these risks, securities issued in developing or emerging countries may be more volatile, less liquid, and harder to value than securities issued in more developed countries. Risks Associated with Value Investing. Value stocks, including those selected by the portfolio managers for the Fund, are subject to the risks that their intrinsic value may never be realized by the market and that their prices may go down. In addition, value style investing may fall out of favor and underperform growth or other styles of investing during given periods. The Fund's value discipline may result in a portfolio of stocks that differs materially from its benchmark index. Securities selected by the portfolio managers using a value strategy may never reach their intrinsic value because the market fails to recognize what the portfolio managers consider to be the true business value or because the portfolio managers have misjudged those values. There may be periods during which the investment performance of the Fund suffers while using a value strategy. Liquidity Risk. The Fund's investments in illiquid securities may reduce the returns of the Fund because it may not be able to sell the illiquid securities at an advantageous time or price. Investments in high yield securities, non-U.S. securities, derivatives or other securities with substantial market and/or credit risk tend to have the greatest exposure to liquidity risk. Certain investments in private placements and Rule 144A securities may be considered illiquid investments. Lower-rated debt securities tend to be less liquid than higher-rated securities. Illiquid securities may trade at a discount from comparable, more liquid investments, and may be subject to wider fluctuations in market value. Investments in illiquid derivatives may create the potential for the Fund to face ongoing margin and settlement payment obligations thereunder. Furthermore, reduced number and capacity of dealers and other counterparties to "make markets" in fixed income securities, in connection with the growth of the fixed income markets, may increase liquidity risk with respect to the Fund's investments in fixed income securities. When there is no willing buyer and investments cannot be readily sold, the Fund may have to lower the selling price, sell other investments, or may not be able to sell the securities at all and may have to forego another, more appealing investment opportunity, any of which could have a negative effect on the Fund's performance. These securities may also be difficult to value and their values may be more volatile because of liquidity risk. Regulatory changes may further constrain the ability of market participants to create liquidity, particularly in times of increased market volatility. Liquidity risk may intensify during periods of economic uncertainty. Currency Transactions Risk. Currency hedging involves many of the same risks as other derivative transactions, such as leveraging risk, market risk, liquidity risk, counterparty risk, management risk, operational risk and legal risk. Currency derivative transactions are also subject to risks different from those of other derivative transactions. Because currency control is of great importance to the issuing governments and influences economic planning and policy, purchases and sales of currency and related instruments can be adversely affected by government exchange controls, limitations or restrictions on repatriation of currency, and manipulations or exchange restrictions imposed by governments. Currency exchange rates may also fluctuate based on broader factors extrinsic to any particular country's economy. There can be no assurance that currency transactions or currency hedging techniques will be successful. Over-the-Counter Risk. Securities and derivatives traded in OTC markets may trade in smaller volumes, and their prices may be more volatile, than securities principally traded on securities exchanges. Such securities may be less liquid than more widely traded securities. In addition, the prices of such securities may include an undisclosed dealer markup, which the Fund pays as part of the purchase price. Private Placements and Restricted Securities Risk. Private placement securities are securities that are not registered under the federal securities laws, and are generally eligible for sale only to certain eligible investors. The Fund may invest in securities that are purchased in private placements. Because there may be relatively few potential purchasers for such investments, especially under adverse market or economic conditions or in the event of adverse changes in the financial condition of the issuer, the Fund could find it more difficult to sell such securities when the Adviser believes it advisable to do so or may be able to sell such securities only at prices lower than if such securities were more widely held. At times, it may also be more difficult to determine the fair value of such securities for purposes of computing the NAV of the Fund. The sale of such investments may also be restricted under securities laws. Private Fund Risk. The Fund invests in external private funds managed by independent external managers. These private funds are generally exempt from registration under the 1940 Act, and, therefore, will not be required to adhere to the restrictions and requirements under the 1940 Act. Accordingly, the provisions of the 1940 Act (which, among other things, require investment companies to have a majority of disinterested directors, require securities to be held in custody by a bank or broker in accordance with rules requiring the segregation of securities, prohibit the investment companies from engaging in certain transactions with its affiliates and regulate the relationship between advisers and investment companies) are not applicable to such private funds. Shares of private funds are not publicly traded and generally are not liquid investments. Additional risks associated with investing in private funds include, among other things, that private funds may incur leverage for investment or other purposes, which may increase the volatility of investments in private funds; private funds generally may invest without limitation in restricted and illiquid investments; the Fund relies primarily on information provided by external managers of the private funds in valuing its investments in private funds; the external managers of the private funds often have broad indemnification rights from the private fund and limitations on liability; neither the Fund nor the Adviser controls the external managers of these private funds; and there can be no assurances that an external manager will manage its private funds in a manner consistent with either the Fund's investment objectives and strategies or with the stated investment policies and restrictions of the private fund. These characteristics present additional risks, including the possibility of risk of total loss, for shareholders of private funds. Securities Lending Risk. For the purposes of reducing borrowing costs or achieving income, the Fund may lend its portfolio securities to brokers, dealers, and other financial institutions provided a number of conditions are satisfied, including that the loan is fully collateralized. When the Fund lends portfolio securities, its investment performance will continue to reflect changes in the value of the securities loaned. Securities lending involves the risk of loss of rights in the collateral or delay in recovery of the collateral if the borrower fails to return the security loaned or becomes insolvent. The Fund may pay lending fees to a party arranging the loan. Cash collateral received by the Fund in securities lending transactions may be invested in short-term liquid fixed income instruments or in money market or short-term mutual funds, or similar investment vehicles, including affiliated money market or short-term mutual funds. The Fund bears the risk of such investments. Leverage Risk. The Fund is permitted to obtain leverage, under limited circumstances, using any form or combination of financial leverage instruments, including through funds borrowed from banks or other financial institutions (i.e., a credit facility), margin facilities, the issuance of Preferred Stock or notes and leverage attributable to reverse repurchase agreements, dollar rolls or similar transactions. The Fund may use leverage opportunistically and may choose to increase or decrease its leverage, or use different types or combinations of leveraging instruments, at any time based on the Fund's assessment of market conditions and the investment environment. The 1940 Act generally limits the extent to which the Fund may utilize borrowings and "uncovered" transactions that may give rise to a form of leverage, including reverse repurchase agreements, dollar rolls, swaps, futures and forward contracts, options and other derivative transactions, together with any other senior securities representing indebtedness, to 33 1​/3%, of the Fund's total net assets at the time utilized. In addition, the 1940 Act limits the extent to which the Fund may issue Preferred Stock to 50% of the Fund's total net assets (less the Fund's obligations under senior securities representing indebtedness). Reverse repurchase agreements involve the risks that the interest income earned on the investment of the proceeds will be less than the interest expense and Fund expenses associated with the repurchase agreement, that the market value of the securities sold by the Fund may decline below the price at which the Fund is obligated to repurchase such securities and that the securities may not be returned to the Fund. There is no assurance that the reverse repurchase agreements can be successfully employed. Dollar roll transactions involve the risk that the market value of the securities the Fund is required to purchase may decline below the agreed upon repurchase price of those securities. Successful use of dollar rolls may depend upon the Investment Manager's ability to correctly predict interest rates and prepayments. There is no assurance that dollar rolls can be successfully employed. In connection with reverse repurchase agreements and dollar rolls, the Fund will also be subject to counterparty risk with respect to the purchaser of the securities. If the broker/dealer to whom the Fund sells securities becomes insolvent, the Fund's right to purchase or repurchase securities may be restricted. "Covered" reverse repurchase agreements, dollar rolls, swaps, futures and forward contracts, options and other derivative transactions will not be counted against the foregoing limits under the 1940 Act. The Fund will "cover" its derivative positions by segregating an amount of cash and/or liquid securities as required by the 1940 Act and applicable SEC interpretations and guidance from time to time. Alternatively, the Fund may enter into an offsetting position or own positions covering its obligations with respect to the transaction; otherwise, this transaction will be considered "uncovered." The Fund may not cover an applicable derivative transaction if it does not need to do so to comply with the foregoing 1940 Act requirements and, in the view of the Adviser, the assets that would have been used to cover could be better used for a different purpose. However, these transactions, even if covered, may represent a form of economic leverage and will create risks. The potential loss on derivative instruments may be substantial relative to the initial investment therein. In addition, these segregation and coverage requirements could result in the Fund maintaining securities positions that it would otherwise liquidate, segregating assets at a time when it might be disadvantageous to do so or otherwise restricting portfolio management. Such segregation and cover requirements will not limit or offset losses on related positions. Use of leverage creates an opportunity for increased income and return for Common Shareholders but, at the same time, creates risks, including the likelihood of greater volatility in the NAV and market price of, and distributions on, the Common Shares. Increases and decreases in the value of the Fund's portfolio will be magnified if the Fund uses leverage. In particular, leverage may magnify interest rate risk, which is the risk that the prices of portfolio securities will fall (or rise) if market interest rates for those types of securities rise (or fall). As a result, leverage may cause greater changes in the Fund's NAV, which will be borne entirely by the Fund's Common Shareholders. There can be no assurance that the Fund will use leverage or that its leveraging strategy will be successful during any period in which it is employed. The Fund may be subject to investment restrictions of one or more NRSROs and/or credit facility lenders as a result of its use of financial leverage. These restrictions may impose asset coverage or portfolio composition requirements that are more stringent than those imposed on the Fund by the 1940 Act. It is not anticipated that these covenants or portfolio requirements will significantly impede the Adviser in managing the Fund's portfolio in accordance with its investment objective and policies. Nonetheless, if these covenants or guidelines are more restrictive than those imposed by the 1940 Act, the Fund may not be able to utilize as much leverage as it otherwise could have, which could reduce the Fund's investment returns. In addition, the Fund expects that any notes it issues or credit facility it enters into would contain covenants that, among other things, will likely impose geographic exposure limitations, credit quality minimums, liquidity minimums, concentration limitations and currency hedging requirements on the Fund. These covenants would also likely limit the Fund's ability to pay distributions in certain circumstances, incur additional debt, change fundamental investment policies and engage in certain transactions, including mergers and consolidations. Such restrictions could cause the Adviser to make different investment decisions than if there were no such restrictions and could limit the ability of the Board and Common Shareholders to change fundamental investment policies. The costs of a financial leverage program (including the costs of offering any Preferred Stock and notes) will be borne entirely by Common Shareholders and consequently will result in a reduction of the NAV of the Common Shares. During periods in which the Fund is using leverage, the fees paid by the Fund for investment advisory services will be higher than if the Fund did not use leverage because the investment advisory fees paid will be calculated on the basis of the Fund's total net assets, which includes proceeds from (and assets subject to) any credit facility, margin facility, any issuance of Preferred Stock or notes, any reverse repurchase agreements, dollar rolls or similar transactions. This will create a conflict of interest between the Adviser, on the one hand, and Common Shareholders, on the other hand. To monitor this potential conflict, the Board intends to periodically review the Fund's use of leverage, including its impact on Fund performance and on the Adviser's fees. The Fund may also offset derivative positions against one another or against other assets to manage the effective market exposure resulting from derivatives in its portfolio. In addition, to the extent that any offsetting positions do not behave in relation to one another as expected, the Fund may perform as if it were leveraged. The Fund's use of leverage could create the opportunity for a higher return for Common Shareholders but would also result in special risks for Common Shareholders and can magnify the effect of any losses. If the income and gains earned on the securities and investments purchased with leverage proceeds are greater than the cost of the leverage, the return on the Common Shares will be greater than if leverage had not been used. Conversely, if the income and gains from the securities and investments purchased with such proceeds do not cover the cost of leverage, the return on the Common Shares will be less than if leverage had not been used. There is no assurance that a leveraging strategy will be successful. Leverage involves risks and special considerations for Common Shareholders, including: • the likelihood of greater volatility of NAV and market price of the Common Shares than a comparable portfolio without leverage; • the risk that fluctuations in interest rates on borrowings and short-term debt or in the dividend rates on any Preferred Stock that the Fund may pay will reduce the return to the Common Shareholders or will result in fluctuations in the dividends paid on the Common Shares; • the effect of leverage in a declining market, which is likely to cause a greater decline in the NAV of the Common Shares than if the Fund were not leveraged, which may result in a greater decline in the market price of the Common Shares; and • when the Fund uses certain types of leverage, the investment advisory fee payable to the Adviser will be higher than if the Fund did not use leverage. On October 28, 2020, the SEC adopted Rule 18f-4 under the Act providing for the regulation of a registered investment company's use of derivatives and certain related instruments. Among other things, Rule 18f-4 limits a fund's derivatives exposure through a value-at-risk test and requires the adoption and implementation of a derivatives risk management program for certain derivatives users. Subject to certain conditions, limited derivatives users (as defined in Rule 18f-4), however, would not be subject to the full requirements of Rule 18f-4. In connection with the adoption of Rule 18f-4 the SEC also eliminated the asset segregation framework arising from prior SEC guidance for covering derivatives and certain financial instruments. Compliance with Rule 18f-4 will be required on August 19, 2022. As the Fund comes into compliance, the Fund's approach to asset segregation and coverage requirements will be impacted. In addition, Rule 18f-4 could restrict the Fund's ability to engage in certain derivatives transactions and/or increase the costs of such derivatives transactions, which could adversely affect the value or performance of the Fund and the Common Shares and/or the Fund's distribution rate. Risks Associated with Investing in High Yield Securities. High yield bonds, which are sometimes called "junk" bonds, are highly speculative securities that are usually issued by smaller, less creditworthy and/or highly leveraged (indebted) companies. Because investment in lower-rated or unrated securities involves greater investment risk, achievement of the Fund's investment objective is more dependent on the portfolio managers' credit analysis than with respect to the Fund's investments in higher-rated securities. The portfolio managers do not employ a rating valuation for unrated securities. Decisions to purchase and sell these securities are based on the portfolio manager's evaluation of their investment potential and not on the ratings assigned by credit agencies. Compared with investment-grade bonds, high yield bonds carry a greater degree of risk and are less likely to make payments of interest and principal. Compared to investment-grade debt securities, market developments and the financial and business conditions of the corporation issuing high yield securities influence high yield securities price and liquidity more than changes in interest rates when compared to investment grade debt securities. Lower-rated securities may be more susceptible to real or perceived adverse economic and competitive industry conditions than investment grade securities. A projection of an economic downturn, for example, could cause a decline in the prices of lower-rated securities because the advent of a recession could lessen the ability of a highly leveraged company to make principal and interest payments on its debt securities. New laws and proposed new laws could negatively impact the market for high yield bonds. Insufficient liquidity in the high yield bond market may make it more difficult to dispose of high yield bonds and may cause the Fund to experience sudden and substantial price declines. A lack of reliable, objective data or market quotations may make it more difficult to value high yield bonds accurately. There is no limit on the ratings of high yield securities that may be purchased or held by the Fund, and the Fund may invest in securities that are in default. Valuation Risk. Unlike publicly traded common stock which trades on national exchanges, there is no central place or exchange for loans or fixed income instruments to trade. Loans and fixed income instruments generally trade on an OTC market, which may be anywhere in the world where the buyer and seller can settle on a price. Due to the lack of centralized information and trading, the valuation of loans or fixed income instruments may carry more risk than that of common stock. Uncertainties in the conditions of the financial market, unreliable reference data, lack of transparency and inconsistency of valuation models and processes may lead to inaccurate asset pricing. In addition, other market participants may value securities differently than the Fund. As a result, the Fund may be subject to the risk that when a loan or fixed income instrument is sold in the market, the amount received by the Fund is less than the value of such loans or fixed income instruments carried on the Fund's books. U.S. Government Securities Risk. Certain U.S. government securities are supported by the full faith and credit of the United States; others are supported by the right of the issuer to borrow from the U.S. Treasury; others are supported by the discretionary authority of the U.S. government to purchase the agency's obligations; and still others are supported only by the credit of the issuing agency, instrumentality, or enterprise. Although U.S. government-sponsored enterprises such as the Federal Home Loan Mortgage Corporation (Freddie Mac) and the Federal National Mortgage Association (Fannie Mae) may be chartered or sponsored by Congress, they are not funded by Congressional appropriations, and their securities are not issued by the U.S. Treasury, are not supported by the full faith and credit of the U.S. government, and involve increased credit risks in comparison to U.S. Treasury securities or other securities supported by the full faith and credit of the U.S. government. Any security guaranteed by the U.S. government or its agencies or instrumentalities, or a security backed by the U.S. Treasury or the full faith and credit of the United States, is guaranteed or backed only as to the timely payment of interest and principal when held to maturity, but the market values for such securities are not guaranteed and will fluctuate. Any market movements, regulatory changes or changes in political or economic conditions that affect the U.S. government agencies or instrumentalities in which the Fund invests may have a significant impact on the Fund's performance. Events that would adversely affect the market prices of securities issued or guaranteed by one government agency or instrumentality may adversely affect the market price of securities issued or guaranteed by other government agencies or instrumentalities. Because many types of U.S. government securities trade actively outside the United States, their prices may rise and fall as changes in global economic conditions affect the demand for these securities. Mortgage-Related and Asset-Backed Risk. Mortgage-related and other asset-backed securities represent interests in "pools" of mortgages or other assets such as consumer loans or receivables held in trust and often involve risks that are different from or possibly more acute than risks associated with other types of debt instruments. Mortgage-related securities are subject to prepayment risk and, thus, can be highly sensitive to changes in interest rates. Generally, in a period of rising interest rates, individual borrowers are less likely to exercise prepayment options which tend to extend the expected maturity of mortgage-related securities, making them more sensitive to changes in interest rates. As a result, if the Fund holds mortgage-related securities, rising interest rates may cause the Fund to exhibit additional volatility due to the increased expected average life of its mortgage-related holdings. When interest rates decline, borrowers may pay their mortgages sooner than expected. These pre-payments can reduce the returns of the Fund because the Fund may realize losses on securities that were acquired at a premium to par and the Fund may have to reinvest the proceeds from prepayments at the lower prevailing interest rates which can reduce the Fund's yield. Mortgage-related securities may be either pass-through securities or CMOs. Pass-through securities represent a right to receive principal and interest payments collected on a pool of mortgages which are passed through to security holders. CMOs are created by dividing the principal and interest payments collected on a pool of mortgages into several cash flow streams ("tranches") with different priority rights to portions of the underlying mortgage payments. Certain CMO tranches may represent a right to receive specific sources of cash flow such as interest-only ("IOs") or principal-only ("POs"). These securities are frequently referred to as "stripped securities" and may be extremely sensitive to changes in interest rates. Stripped securities can produce higher yields than more traditional securities. However, stripped mortgage securities are highly sensitive to changes in interest and prepayment rates. As a result, such securities are extremely volatile. For example, generally, the value of principal-only stripped mortgage-related securities fall as interest rates rise, whereas the value of interest-only stripped mortgage-related securities rise as interest rates rise, and vice versa. If the Fund invests in CMO tranches (including CMO tranches issued by government agencies) and interest rates move in a manner not anticipated by the managers, it is possible that the Fund could lose all or substantially all of its investment. The market prices of CMOs structured as accrual certificates (also known as "Z-Bonds") are affected to a greater extent by interest rate changes and therefore tend to be more volatile than securities which pay current interest in cash. Mortgage-related securities, and in particular those not backed by a government guarantee, are subject to credit risk. The Fund's investments in other asset-backed securities are subject to risks similar to those associated with mortgage-related securities, as well as additional risks associated with the nature of the assets and the servicing of those assets. Payment of principal and interest on asset-backed securities may be largely dependent upon the cash flows generated by the assets backing the securities, and asset-backed securities may not have the benefit of any security interest in the related assets. Certain asset-backed securities, including securities backed by auto loans, are subject to subprime lending and loan-to-value risk. One of the most significant risks to a holder of an auto loan asset-backed security is the fluctuation of the value of the loans acquired. The higher the loan-to-value ratio, the riskier the loan is for a lender. Further, subprime loans underlying auto loan asset-backed securities may have higher default rates than loans that meet more stringent underwriting requirements. Adjustable-Rate Mortgage ("ARM") Risk. During periods of extreme fluctuations in interest rates, the resulting fluctuations of ARM rates could affect the ARMs' market value. Most ARMs generally have annual reset limits or "caps". Fluctuations in interest rates above these levels, thus, could cause the mortgage-backed securities to "cap out" and to behave more like long-term, fixed-rate debt securities. During periods of declining interest rates, of course, the coupon rates may readjust downward and result in lower yields. Because of this feature, the value of ARMs will likely not rise during periods of declining interest rates to the same extent as fixed-rate instruments. Stripped Securities Risk. Stripped securities are more volatile than securities where the principal and interest payments have not been separated. The value of stripped securities generally fluctuates more in response to interest rate movements than the value of traditional bonds because a change in interest rates may increase or decrease prepayments of principal. While the U.S. government or its agencies or instrumentalities may guarantee the full repayment of principal on stripped securities they issue, repayment of interest is generally guaranteed only while the underlying assets or pools of assets are outstanding. The market for stripped securities may be limited, which may make it difficult for the Fund to dispose of them quickly at an acceptable price. Sovereign and Government-Related Debt. Sovereign debt includes securities issued or guaranteed by a non-U.S. sovereign government or its agencies, authorities, or political sub-divisions. Government-related debt includes securities issued by non-U.S. regional or local governmental entities or government-controlled entities. In the event an issuer of sovereign debt or government- related debt is unable or unwilling to make scheduled payments of interest or principal, holders may be asked to participate in a restructuring of the debt and to extend further credit to the issuer. In the event of a default by a governmental entity on a sovereign debt obligation, there may be few or no effective legal remedies for collecting on such debt. Risks Associated with Investing in Convertible Securities. A convertible security is a bond, debenture, or note that may be exchanged for particular common stocks in the future at a predetermined price or formula within a specified period of time. A convertible security entitles the holder to receive interest paid or accrued on the debt security until the convertible security matures or is redeemed. Prior to redemption, convertible securities provide benefits similar to nonconvertible debt securities in that they generally provide income with higher yields than those of similar common stocks. Convertible securities may entail less risk than the corporation's common stocks. Convertible securities are generally not investment grade. The risks of nonpayment of the principal and interest increase when debt securities are rated lower than investment grade or are not rated. Risks Associated with Deep Discount Securities. The high yield securities in which the Fund may invest may from time to time include debt securities of companies that are financially troubled, in default or are in bankruptcy or reorganization. These securities are called "Deep Discount Securities" and are deeply discounted from their face value. The Fund will invest in Deep Discount Securities when the portfolio managers believe that the issuer's financial condition is likely to improve. A debt instrument purchased at a deep discount, but prior to default, may pay a very high effective yield. If the issuer's financial condition improves, the underlying value of the securities may increase and result in a capital gain. If the issuer cannot meet its debt obligations, however, the Deep Discount Securities may stop generating income and lose its value or become worthless. The portfolio managers will balance the benefits of Deep Discount Securities with their risks. A diversified portfolio may reduce the overall impact of a Deep Discount Security in default or reduced in value, but the risk cannot be eliminated. A lack of reliable, objective data or market quotations may make it more difficult to value deep discount securities accurately. Insufficient liquidity in the deep discount security market may make it more difficult to dispose of such securities and may cause the Fund to experience sudden and substantial price declines. Risks Associated with Investing in Repurchase Agreements. A repurchase agreement is a short-term investment. The Fund acquires a debt security that the seller agrees to repurchase at a future time and set price. If the seller declares bankruptcy or defaults, the Fund may incur delays and expenses liquidating the security. The security may also decline in value or fail to provide income. Risks Associated with Short Selling. The Fund can lose money if the price of the security it sold short increases between the date of the short sale and the date on which the Fund replaces the borrowed security. These losses are theoretically unlimited. To borrow the security, the Fund also may be required to pay a premium, which would increase the cost of the security sold. The Fund will incur transaction costs in effecting short sales. The Fund's gains and losses will be decreased or increased, as the case may be, by the amount of the premium, dividends, interest, or expenses the Fund may be required to pay in connection with a short sale. Derivatives Risk. The Fund may invest in derivatives, a category of investments that includes forward non-U.S. currency exchange contracts, futures, options and swaps to protect its investments against changes resulting from market conditions or currency changes (a practice called "hedging"), to reduce transaction costs or to manage cash flows. Forward non-U.S. currency exchange contracts, futures and options are called derivatives because their value is derived from an underlying asset or economic factor. Derivatives are often more volatile than other investments and may magnify the Fund's gains or losses. There are various factors that affect the Fund's ability to achieve its objectives with derivatives. Successful use of a derivative depends on the degree to which prices of the underlying assets correlate with price movements in the derivatives the Fund buys or sells. The Fund could be negatively affected if the change in market value of its securities fails to correlate perfectly with the values of the derivatives it purchased or sold. In addition, derivatives can be volatile and involve significant risks, including counterparty risk (the risk that the other party to a contract defaults or refuses to honor the obligation), leverage risk (the risk that some derivatives entail embedded leverage magnifying losses) and liquidity risk (the risk that the derivative will be difficult to sell or close out at a favorable time or price). Changes in regulations relating to a mutual fund's use of derivatives and related instruments could potentially limit or impact the Fund's ability to invest in derivatives and adversely affect the value or performance of derivatives and the Fund. Market Discount Risk. Common shares of closed-end investment companies like the Fund frequently trade at a discount from their NAV. Common shares of closed-end investment companies like the Fund have traded at prices higher than their NAV during some periods and have traded at prices lower than their NAV during other periods. The Fund cannot assure you that its Common Shares will trade at a price higher than or equal to NAV in the future. In addition to NAV, the market price of the Fund's Common Shares may be affected by such factors as distribution levels and stability (which are in turn affected by expenses, regulation affecting the timing and character of Fund distributions and other factors), portfolio credit quality, liquidity, market supply and demand and similar other factors relating to the Fund's portfolio holdings. The Fund's market price may also be affected by general market, economic or political conditions. The Common Shares are designed primarily for long-term investors and should not be viewed as a vehicle for trading purposes. You should not purchase Common Shares of the Fund if you intend to sell them shortly after purchase. Regulatory Risk—Regulation as a Commodity Pool. The Adviser has claimed an exclusion from the definition of the term "commodity pool operator" with respect to the Fund pursuant to Regulation 4.5 promulgated by the CFTC under the Commodity Exchange Act (the "CEA"). The CFTC has adopted amendments to its rules that may affect the ability of the Adviser to claim this exclusion. The ongoing compliance implications of these amendments are not fully effective and their scope of application is still uncertain. The Adviser will be limited in its ability to use futures or options on futures or engage in swaps transactions on behalf of the Fund as a result of claiming the exclusion. In the event the Adviser fails to qualify for the exclusion and is required to register as a "commodity pool operator," the Adviser will become subject to additional disclosure, recordkeeping and reporting requirements with respect to the Fund, which may increase the Fund's expenses. Risks related to the Fund's Clearing Broker and Central Clearing Counterparty. The CEA and CFTC regulations require swaps and futures clearing brokers registered as "futures commission merchants" to segregate from the broker's proprietary assets all funds and other property received from customers with respect to any orders for the purchase or sale of U.S. domestic futures contracts, options on futures contracts and cleared swaps. Similarly, the CEA requires each futures commission merchant to hold in a separate secure account all funds and other property received from customers with respect to any orders for the purchase or sale of foreign futures contracts and segregate any such funds from the funds received with respect to domestic futures contracts. However, all funds and other property received by a clearing broker from its customers are held by the clearing broker on a commingled basis in an omnibus account and may be accessed by the clearing broker, which may also invest any such funds in certain instruments permitted under the applicable regulation. There is a risk that assets deposited by the Fund with any swaps or futures clearing broker as margin for futures contracts or cleared swaps may, in certain circumstances, be used to satisfy losses of other clients of the Fund's clearing broker. In addition, the assets of the Fund might not be fully protected in the event of the Fund's clearing broker's bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing broker's combined domestic customer accounts. Similarly, the CEA and CFTC regulations require a clearing organization approved by the CFTC as a derivatives clearing organization to segregate all funds and other property received from a clearing member's customers in connection with domestic futures, swaps and options contracts from any funds or other property held at the clearing organization to support the clearing member's proprietary trading. Nevertheless, with respect to futures and options contracts, a clearing organization may use assets of a non-defaulting customer held in an omnibus account at the clearing organization to satisfy payment obligations of a defaulting customer of the clearing member to the clearing organization. As a result, in the event of a default of the clearing broker's other clients or the clearing broker's failure to extend its own funds in connection with any such default, the Fund may not be able to recover the full amount of assets deposited by the clearing broker on behalf of the Fund with the clearing organization. Anti-Takeover Provisions Risk. Certain provisions of the Fund's Certificate of Incorporation, as amended ("Certificate of Incorporation") may be regarded as "anti-takeover" provisions. These provisions require the affirmative vote or consent of the holders of at least two-thirds of the outstanding shares of the Fund for a merger or consolidation of the Fund with an open-end investment company, a merger or consolidation of the Fund with a closed-end investment company with different voting requirements, dissolution of the Fund, a sale of all or substantially all of the assets of the Fund or an amendment to the Fund's Certificate of Incorporation making the common stock a redeemable security or reducing the two-thirds vote required by the Certificate of Incorporation. Risks Relating to Fund's RIC Status. To qualify and remain eligible for the special tax treatment accorded to RICs and their shareholders under the Code, the Fund must meet certain source-of-income, asset diversification and annual distribution requirements. Very generally, in order to qualify as a RIC, the Fund must derive at least 90% of its gross income for each taxable year from dividends, interest, payments with respect to certain securities loans, gains from the sale or other disposition of stock, securities or foreign currencies, or other income derived with respect to its business of investing in stock or other securities and currencies. The Fund must also meet certain asset diversification requirements at the end of each quarter of each of its taxable years. Failure to meet these diversification requirements on the last day of a quarter may result in the Fund having to dispose of certain investments quickly in order to prevent the loss of RIC status. Any such dispositions could be made at disadvantageous prices or times, and may result in substantial losses to the Fund. In addition, in order to be eligible for the special tax treatment accorded RICs, the Fund must meet the annual distribution requirement, requiring it to distribute with respect to each taxable year at least 90% of the sum of its "investment company taxable income" (generally its taxable ordinary income and realized net short-term capital gains in excess of realized net long-term capital losses, if any) and its net tax-exempt income (if any), to its shareholders. If the Fund fails to qualify as a RIC for any reason and becomes subject to corporate tax, the resulting corporate taxes could substantially reduce its net assets, the amount of income available for distribution and the amount of its distributions. Such a failure would have a material adverse effect on the Fund and its Shareholders. In addition, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest and make substantial distributions in order to re-qualify as a RIC. RIC-Related Risks of Investments Generating Non-Cash Taxable Income. Certain of the Fund's investments will require the Fund to recognize taxable income in a taxable year in excess of the cash generated on those investments during that year. In particular, the Fund invests in loans and other debt obligations that are treated as having "market discount" and/or OID for U.S. federal income tax purposes. Because the Fund may be required to recognize income in respect of these investments before, or without receiving, cash representing such income, the Fund may have difficulty satisfying the annual distribution requirements applicable to RICs and avoiding Fund-level U.S. federal income and/or excise taxes. Accordingly, the Fund may be required to sell assets, including at potentially disadvantageous times or prices, borrow, raise additional equity capital, make taxable distributions of its shares or debt securities, or reduce new investments, to obtain the cash needed to make these income distributions. If the Fund liquidates assets to raise cash, the Fund may realize gain or loss on such liquidations; in the event the Fund realizes net capital gains from such liquidation transactions, its Common Shareholders may receive larger capital gain distributions than they would in the absence of such transactions. Misconduct of Employees and of Third-Party Service Providers Risk. Misconduct by employees of the Adviser or by third- party service providers could cause significant losses to the Fund. Employee misconduct may include binding the Fund to transactions that exceed authorized limits or present unacceptable risks and unauthorized investment activities or concealing unsuccessful investment activities (which, in either case, may result in unknown and unmanaged risks or losses). Losses could also result from actions by third- party service providers, including, without limitation, failing to recognize trades and misappropriating assets. In addition, employees and third-party service providers may improperly use or disclose confidential information, which could result in litigation or serious financial harm, including limiting the Fund's business prospects or future marketing activities. No assurances can be given that the due diligence performed by the Adviser will identify or prevent any such misconduct. LIBOR Risk. The Fund's investments and payment obligations may be based on floating rates, such as London Interbank Offer Rate ("LIBOR"), Euro Interbank Offered Rate and other similar types of reference rates (each, a "Reference Rate"). The Chief Executive of the UK Financial Conduct Authority ("FCA"), which regulates LIBOR, has announced plans to phase out the use of LIBOR by the end of 2021. The transition may result in a reduction in the value of certain instruments held by a Fund or a reduction in the effectiveness of related Fund transactions such as hedges. There remains uncertainty regarding future utilization of LIBOR and the nature of any replacement rate (e.g., the Secured Overnight Financing Rate, which is intended to replace U.S. dollar LIBOR and measures the cost of overnight borrowings through repurchase agreement transactions collateralized with U.S. Treasury securities), and any potential effects of the transition away from LIBOR on a Fund or on certain instruments in which a Fund invests are not known and could result in losses to a Fund. In advance of the end of 2021, regulators and market participants will work together to identify or develop successor Reference Rates. Market participants have and will continue to focus on the transition mechanisms by which the Reference Rates in existing contracts or instruments may be amended, whether through marketwide protocols, fallback contractual provisions, bespoke negotiations or amendments or otherwise. Nonetheless, the termination of certain Reference Rates presents risks to the Fund. At this time, it is not possible to completely identify or predict the effect of any such changes, any establishment of alternative Reference Rates or any other reforms to Reference Rates that may be enacted in the UK or elsewhere. The elimination of a Reference Rate or any other changes or reforms to the determination or supervision of Reference Rates could have an adverse impact on the market for or value of any securities or payments linked to those Reference Rates and other financial obligations held by the Fund or on its overall financial condition or results of operations. In addition, any substitute Reference Rate and any pricing adjustments imposed by a regulator or by counterparties or otherwise may adversely affect the Fund's performance and/or NAV. Closed-end Fund Risk. Unlike an open-ended fund, which needs to maintain liquidity for investor redemptions, the Fund may take advantage of the lack of daily in/outflows due to the Fund's closed-end nature. Consequently, the Fund may hold less cash and cash equivalents than it might otherwise hold if it were an open-end fund. In addition, the Fund may opportunistically own more "illiquid" assets (as defined by the SEC) and more assets that have greater near-term price volatility (including, but not limited to, interest-only securities). Share Repurchases Risk. Any acquisition by the Fund of its shares, pursuant to its share repurchase program, will decrease the amount of total assets of the Fund, and therefore, may increase the Fund's expense ratio. If the Fund liquidates a portion of its investment portfolio in connection with a share repurchase, such liquidation might be at a time when independent investment judgment would not dictate such action, increasing the Fund's overall portfolio turnover (and related transaction costs) and making it more difficult for the Fund to achieve its investment objective. |  |  |  |  |
Annual Dividend Payment | $ (5.16) | $ (2.91) | $ (2.22) | $ (4.61) | $ (1.64) |
Share Price | 43.49 | 40.38 | 38.66 | 43.21 | 39.91 |
NAV Per Share | $ 43.53 | $ 43.91 | $ 40.27 | $ 45.7 | $ 45.35 | $ 44.44
Capital Stock, Long-Term Debt, and Other Securities [Abstract] |  |  |  |  |  |
Capital Stock [Table Text Block] | NOTE 9—Capital Stock The Fund did not issue any shares of Common Stock under its Dividend Reinvestment Plan for shareholders during the year ended December 31, 2024. Effective October 30, 2024, the Board approved the continuation of the repurchase program through December 31, 2025. During the year ended December 31, 2024, the Fund repurchased 7,968 of its outstanding shares at a weighted-average discount of 8.69% from net asset value per share. These repurchases were made pursuant to the stock repurchase program approved annually by the Fund's Board of Directors. Under the program, the Fund is authorized to make open-market repurchases of its common stock of up to 10% of the Fund's outstanding shares during the twelve-month period beginning January 1, 2024. The Fund expects to repurchase its common stock when the discount to NAV of the trading price of its common stock on the NYSE is greater than 5%, subject to various factors, including the ability of the Fund to raise cash to repurchase shares in a tax-efficient manner. |  |  |  |  |
Outstanding Security, Title [Text Block] | Capital Stock |  |  |  |  |
Outstanding Security, Authorized [Shares] | 12,000,000 |  |  |  |  |
Outstanding Security, Held [Shares] | 8,199,745 |  |  |  |  |
Risks Associated With Investing In Equities [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Risks Associated with Investing in Equities. Equity securities, generally common stocks, preferred stocks and/or depositary receipts held by the Fund may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect the securities markets generally, such as adverse changes in economic or political conditions, the general outlook for corporate earnings, interest rates or investor sentiment. Sustained periods of market volatility, either globally or in any jurisdiction in which the Fund invests, may increase the risks associated with an investment in the Fund. Equity securities may also lose value because of factors affecting an entire industry or sector, such as increases in production costs or factors directly related to a specific company, such as decisions made by its management. Common stock of an issuer in the Fund's portfolio may decline in price if the issuer fails to make anticipated dividend payments because, among other reasons, the issuer of the security experiences a decline in its financial condition. Common stock is subordinated to preferred stocks, bonds and other debt instruments in a company's capital structure, in terms of priority with respect to corporate income, and therefore will be subject to greater dividend risk than preferred stocks or debt instruments of such issuers. In addition, while broad market measures of common stocks have historically generated higher average returns than fixed income securities, common stocks have also experienced significantly more volatility in those returns. Because preferred stock is generally junior to debt securities and other obligations of the issuer, deterioration in the credit quality of the issuer will cause greater changes in the value of a preferred stock than in a more senior debt security with similar stated yield characteristics. |  |  |  |  |
Fixed Income Instruments Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Fixed Income Instruments Risk. The Fund invests in loans and other types of fixed income instruments and securities. Such investments may be secured, partially secured or unsecured and may be unrated, and whether or not rated, may have speculative characteristics. The market price of the Fund's investments will change in response to changes in interest rates and other factors. Generally, when interest rates rise, the values of fixed income instruments fall, and vice versa. In typical interest rate environments, the prices of longer-term fixed income instruments generally fluctuate more than the prices of shorter-term fixed income instruments as interest rates change. These risks may be greater in the current market environment of historically low interest rates. The obligor of a fixed income instrument may not be able or willing to pay interest or to repay principal when due in accordance with the terms of the associated agreement. An obligor's willingness and ability to pay interest or to repay principal due in a timely manner may be affected by, among other factors, its cash flow. Commercial bank lenders may be able to contest payments to the holders of other debt obligations of the same obligor in the event of default under their commercial bank loan agreements. See also "Risks Factors—Credit Risk." The Fund invests in loans and other similar forms of debt. Such forms of indebtedness are different from traditional debt securities in that debt securities are part of a large issue of securities to the public and loans and similar debt instruments may not be securities, but may represent a specific commercial loan to a borrower. Loan participations typically represent direct participation, together with other parties, in a loan to a corporate borrower, and generally are offered by banks or other financial institutions or lending syndicates. Participation interests will only give the Fund the right to receive payments of principal and interest from the institution participating out the loan, and not directly from the obligor, and will typically give the Fund limited consent rights to amendments of the underlying credit documents. The Fund may participate in such syndications, or can buy part of a loan, becoming a part lender. When purchasing indebtedness and loan participations, the Fund assumes the credit risk associated with the corporate borrower and may assume the credit risk associated with an interposed bank or other financial intermediary. Members of a syndicate in which the Fund participates may have different and sometimes superior rights to those of the Fund. Where the Fund invests as a sub-participant in syndicated debt, it may be subject to certain risks as a result of having no direct contractual relationship with the underlying borrower. As a result, the Fund will generally be dependent on the lender to enforce its rights and obligations under the loan arrangements in the event of a default by the underlying borrower and will generally not have any direct rights against the underlying borrower, any direct rights in the collateral, if any, securing such borrowing, or any right to deal directly with such borrower. The lender will, in general, retain the right to determine whether remedies provided for in the underlying loan arrangement will be exercised, or waived. In the event that the Fund enters into such an investment, there can be no assurance that its ability to realize upon a participation will not be interrupted or impaired in the event of the bankruptcy or insolvency of any of the borrower or the lender or that in such circumstances, the Fund will benefit from any set-off between the lender and the borrower. Successful claims by third parties arising from these and other risks may be borne by the Fund. The Fund may invest in debtor-in-possession financings. In such investments there is a risk that the underlying borrower may not successfully come out of Chapter 11 proceedings and may be forced to liquidate its assets in which case the Fund's only recourse will be against the security provided by the borrower (which may not be sufficient to cover related losses). |  |  |  |  |
Market Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Market Risk. The market price of investments owned by the Fund may go up or down, sometimes rapidly or unpredictably. Fund investments may decline in value due to factors affecting the overall markets, or particular industries or sectors. The value of a holding may decline due to general market conditions that are not specifically related to a particular issuer, such as real or perceived adverse economic conditions, changes in the general outlook for an issuer's financial condition, national or international political events, war, acts of terrorism, inflation/deflation, market disruptions, public health emergencies, such as the spread of infectious illness or disease, natural disasters, changes in interest or currency rates, domestic or international monetary policy or adverse investor sentiment generally. The value of a holding may also decline due to factors that affect a particular industry or industries, such as competitive conditions within an industry or government regulations. In addition, the Fund may rely on various third-party sources to calculate its net asset value. Errors or systems failures and other technological issues may adversely impact the Fund's calculation of its net asset value, and such net asset value calculation issues may result in inaccurately calculated net asset values, delays in net asset value calculation and/or the inability to calculate net asset values over extended periods. The Fund may be unable to recover any losses associated with such failures. In addition, issuers of securities in which the Fund invests are subject to potential operational and information security risks from breaches in cyber security, including cyber-attacks. A breach in cyber security refers to both intentional and unintentional cyber events and may include, among other events, the stealing or corrupting of data maintained online or digitally, denial of service attacks on websites, the unauthorized release or misuse of confidential information or various other forms of cyber security breaches. Such cyber events could result in material adverse consequences for such issuers, and may cause the Fund's investment in such portfolio companies to lose value. Many countries have experienced outbreaks of infectious illnesses in recent decades, including swine flu, avian influenza, SARS and, more recently, COVID-19. The global outbreak of COVID-19 in early 2020 has resulted in various disruptions, including travel and border restrictions, quarantines, supply chain disruptions, labor restrictions, lower consumer demand and general market uncertainty. In 2022, many countries lifted some or all restrictions related to COVID-19. However, this outbreak and any future outbreaks may continue to adversely affect the global economy, financial markets and the economies of certain nations and individual issuers, any of which may negatively impact the Fund and its holdings. Similar consequences could arise as a result of the spread of other infectious diseases. As with other serious economic disruptions, governmental authorities and regulators have responded in recent years to such disruption with significant fiscal and monetary policy changes. These included providing direct capital infusions into companies, introducing new monetary programs, and lowering interest rates. In some cases, these responses resulted in, and may in the future result in, negative interest rates and higher inflation. The Federal Reserve Board has since reversed this policy by imposing a series of federal funds rate hikes, as noted above, over the course of 2022. These actions, including their possible unexpected or sudden reversal or potential ineffectiveness, could further increase volatility in securities and other financial markets, reduce market liquidity, continue to cause higher inflation, heighten investor uncertainty and adversely affect the value of the Fund's investments and the performance of the Fund. |  |  |  |  |
Management Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Management Risk. The Fund is subject to management risk as an actively managed investment portfolio. The portfolio managers will apply investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these will produce the desired results. The portfolio managers' opinion about the intrinsic worth or creditworthiness of a company or security may be incorrect, the portfolio managers may not make timely purchases or sales of securities for the Fund, the Fund's investment objective may not be achieved, or the market may continue to undervalue the Fund's securities. In addition, the Fund may not be able to quickly dispose of certain securities holdings. The frequency of trading within the Fund impacts portfolio turnover rates, which are shown in the financial highlights table. A higher rate of portfolio turnover could produce higher trading costs and taxable distributions, which would detract from the Fund's performance. Moreover, there can be no assurance that all of the Adviser's personnel will continue to be associated with the Adviser for any length of time. The loss of services of one or more key employees of the Adviser, including the portfolio managers, could have an adverse impact on the Fund's ability to achieve its investment objective. Certain securities or other instruments in which the Fund seeks to invest may not be available in the quantities desired. In such circumstances, the portfolio managers may determine to purchase other securities or instruments as substitutes. Such substitute securities or instruments may not perform as intended, which could result in losses to the Fund. In addition, the Fund and its service providers are subject to potential operational and information security risks from breaches in cyber security. A breach in cyber security refers to both intentional and unintentional cyber events and may include, among other events, the stealing or corrupting of data maintained online or digitally, denial of service attacks on websites, the unauthorized release or misuse of confidential information or various other forms of cyber-attacks. Cyber-security breaches affecting the Fund or the Adviser, custodian, transfer agent, intermediaries, trading counterparties or other third-party service providers may adversely impact the Fund. For instance, cyber security breaches may interfere with the processing of shareholder transactions, impact the Fund's ability to calculate its net asset value, cause the release of private shareholder information or confidential (including proprietary) company information, impede trading, result in violations of applicable privacy and other laws, subject the Fund to regulatory fines, cause the Fund and its shareholders to experience financial losses, or cause reputational damage and/or otherwise disrupt normal business operations. The Fund may also incur additional costs for cyber security risk management purposes. The Fund has established business continuity plans and risk management systems reasonably designed to seek to reduce the risks associated with cyber-attacks, but there are inherent limitations in these plans and systems. For example, the nature of malicious cyber-attacks is becoming increasingly sophisticated; the Fund cannot control the cyber- security systems of issuers or third-party service providers; and certain current risks may not have been identified and additional unknown threats may emerge in the future. There is also a risk that cyber security breaches may not be detected. The Fund and its shareholders could be negatively impacted as a result. |  |  |  |  |
Credit Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Credit Risk. Credit risk refers to the likelihood that an issuer will default on the payment of principal and/or interest on a security. Various factors could affect the issuer's actual or perceived willingness or ability to make timely interest or principal payments, including changes in the issuer's financial condition or in general economic conditions. In addition, lack of or inadequacy of collateral or credit enhancements for a fixed income security may affect its credit risk. Below investment grade securities predominantly have more risk with respect to the issuer's ability to pay interest and repay principal when due, and therefore involve a greater risk of default or nonpayment. Credit risk of a security may change over time, and securities which are rated by ratings agencies are often reviewed and may be subject to downgrade. However, ratings are only opinions of the agencies issuing them and are not absolute guarantees as to quality. |  |  |  |  |
Call Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Call Risk. Issuers of callable bonds are permitted to redeem these bonds before their final maturity. Issuers may call outstanding securities before maturity for a number of reasons, including decreases in prevailing interest rates or improvements to the issuer's credit profile. If an issuer calls a security in which the Fund is invested, the Fund could lose potential price appreciation and be forced to reinvest the proceeds in securities that bear a lower interest rate or more credit risk. |  |  |  |  |
Risks Associated with Investing in Smaller-Cap and Mid-Cap Companies [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Risks Associated with Investing in Smaller-Cap and Mid-Cap Companies. The prices of securities of smaller-cap and mid-cap companies tend to fluctuate more widely than those of larger, more established companies. Smaller-cap and mid-cap companies may have limited product lines, markets or financial resources or may depend on the expertise of a few people and may be subject to more abrupt or erratic market movements than securities of larger, more established companies or market averages in general. In addition, these companies often have shorter operating histories and are more reliant on key products or personnel than larger companies. The securities of smaller- or medium-sized companies are often traded over-the-counter, and may not be traded in volumes typical of securities traded on a national securities exchange. Securities of such issuers may lack sufficient market liquidity to effect sales at an advantageous time or without a substantial drop in price. |  |  |  |  |
Risks Associated with Investing in Non-U.S. Securities [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Risks Associated with Investing in Non-U.S. Securities. Non-U.S. investments involve special risks not present in U.S. investments that can increase the chances that the Fund will lose money. Certain of the risks noted below may also apply to securities of U.S. issuers with significant non-U.S. operations. Investments in non-U.S. securities involve the following risks: • the economies of some non-U.S. markets often do not compare favorably with that of the U.S. in areas such as growth of gross domestic product, reinvestment of capital, resources, and balance of payments. Some of these economies may rely heavily on particular industries or non-U.S. capital. They may be more vulnerable to adverse diplomatic developments, the imposition of economic sanctions against a country, changes in inter-national trading patterns, trade barriers and other protectionist or retaliatory measures; • governmental actions such as the imposition of capital controls, nationalization of companies or industries, expropriation of assets or the imposition of punitive taxes—may adversely affect investments in non-U.S. markets. Such governments may also participate to a significant degree, through ownership or regulation, in their respective economies; • the governments of certain countries may prohibit or substantially restrict foreign investing in their capital markets or in certain industries. This could severely affect security prices. This could also impair the Fund's ability to purchase or sell non-U.S. securities or transfer its assets or income back to the U.S. or otherwise adversely affect the Fund's operations; • other non-U.S. market risks include foreign exchange controls, difficulties in pricing securities, defaults on non-U.S. government securities, difficulties in enforcing favorable legal judgments in non-U.S. courts, and political and social instability. Legal remedies available to investors in some non-U.S. countries are less extensive than those available to investors in the U.S. Many non-U.S. governments supervise and regulate stock exchanges, brokers and the sale of securities to a lesser extent than the U.S. government does. Corporate governance may not be as robust as in more developed countries. As a result, protections for minority investors may not be strong, which could adversely affect the Fund's non-U.S. holdings or exposures; • accounting standards in other countries are not necessarily the same as in the U.S. If the accounting standards in another country do not require as much disclosure or detail as U.S. accounting standards, it may be harder for the portfolio managers to completely and accurately determine a company's financial condition or otherwise assess a company's creditworthiness; • because there may be fewer investors on non-U.S. exchanges and smaller numbers of shares traded each day, it may be difficult for the Fund to buy and sell securities on those exchanges. In addition, prices of non-U.S. securities may be more volatile than prices of securities traded in the U.S.; • non-U.S. markets may have different clearance and settlement procedures. In certain markets, settlements may not keep pace with the volume of securities transactions. If this occurs, settlement may be delayed, and the Fund's assets may be uninvested and may not be earning returns. The Fund also may miss investment opportunities or not be able to sell an investment or reduce its exposure because of these delays; • changes in currency exchange rates will affect the value of the Fund's non-U.S. holdings or exposures; • the costs of non-U.S. securities transactions tend to be higher than those of U.S. transactions, increasing the transaction costs paid directly or indirectly by the Fund; • international trade barriers or economic sanctions against non-U.S. countries may adversely affect the Fund's non-U.S. holdings or exposures; and • global economies are increasingly interconnected, which increases the possibilities that conditions in one country region or financial market may adversely impact a different country, region or financial market. The severity or duration of these conditions may be affected if one or more countries leave the European Union, the euro currency or if other policy changes are made by governments or quasigovernmental organizations. The Fund may invest in depositary receipts, including American Depositary Receipts ("ADRs"), European Depositary Receipts ("EDRs"), Global Depositary Receipts ("GDRs") and Global Depositary Notes ("GDNs"), which are certificates evidencing ownership of securities of a non-U.S. issuer. Depositary receipts may be sponsored by the non-U.S. issuer or unsponsored. Depositary receipts are subject to the risks of changes in currency or exchange rates and the risks of investing in non-U.S. securities that they evidence or into which they may be converted. The issuers of unsponsored depositary receipts are not obligated to disclose information that would be considered material in the U.S., or to pass through to shareholders any voting rights with respect to the deposited securities. Therefore, there may be less information available regarding these issuers, and there may not be a correlation between such information and the market value of the depositary receipts. |  |  |  |  |
Risks Associated With Investing In Emerging Market [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Risks Associated with Investing in Emerging Market. In investing the Fund's assets, the portfolio managers focus on countries with established rules of law and political systems that allow for transparent and unbiased enforcement of those laws, although there can be no assurance that the Fund's assets will in all cases be invested in countries that offer such protections, and such investments may be subject to heightened risk. The Fund's investments in non-U.S. issuers in developing or emerging market countries may involve increased exposure to changes in economic, social and political factors as compared to investments in more developed countries. The economies of most emerging market countries are in the early stage of capital market development and may be dependent on relatively fewer industries. As a result, their economic systems are still evolving. Their legal and political systems may also be less stable than those in developed economies. Securities markets in these countries can also be smaller, and there may be increased settlement risks. Emerging market countries often suffer from currency devaluation and higher rates of inflation. Due to these risks, securities issued in developing or emerging countries may be more volatile, less liquid, and harder to value than securities issued in more developed countries. |  |  |  |  |
Risks Associated With Value Investing [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Risks Associated with Value Investing. Value stocks, including those selected by the portfolio managers for the Fund, are subject to the risks that their intrinsic value may never be realized by the market and that their prices may go down. In addition, value style investing may fall out of favor and underperform growth or other styles of investing during given periods. The Fund's value discipline may result in a portfolio of stocks that differs materially from its benchmark index. Securities selected by the portfolio managers using a value strategy may never reach their intrinsic value because the market fails to recognize what the portfolio managers consider to be the true business value or because the portfolio managers have misjudged those values. There may be periods during which the investment performance of the Fund suffers while using a value strategy. |  |  |  |  |
Liquidity Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Liquidity Risk. The Fund's investments in illiquid securities may reduce the returns of the Fund because it may not be able to sell the illiquid securities at an advantageous time or price. Investments in high yield securities, non-U.S. securities, derivatives or other securities with substantial market and/or credit risk tend to have the greatest exposure to liquidity risk. Certain investments in private placements and Rule 144A securities may be considered illiquid investments. Lower-rated debt securities tend to be less liquid than higher-rated securities. Illiquid securities may trade at a discount from comparable, more liquid investments, and may be subject to wider fluctuations in market value. Investments in illiquid derivatives may create the potential for the Fund to face ongoing margin and settlement payment obligations thereunder. Furthermore, reduced number and capacity of dealers and other counterparties to "make markets" in fixed income securities, in connection with the growth of the fixed income markets, may increase liquidity risk with respect to the Fund's investments in fixed income securities. When there is no willing buyer and investments cannot be readily sold, the Fund may have to lower the selling price, sell other investments, or may not be able to sell the securities at all and may have to forego another, more appealing investment opportunity, any of which could have a negative effect on the Fund's performance. These securities may also be difficult to value and their values may be more volatile because of liquidity risk. Regulatory changes may further constrain the ability of market participants to create liquidity, particularly in times of increased market volatility. Liquidity risk may intensify during periods of economic uncertainty. |  |  |  |  |
Currency Transactions Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Currency Transactions Risk. Currency hedging involves many of the same risks as other derivative transactions, such as leveraging risk, market risk, liquidity risk, counterparty risk, management risk, operational risk and legal risk. Currency derivative transactions are also subject to risks different from those of other derivative transactions. Because currency control is of great importance to the issuing governments and influences economic planning and policy, purchases and sales of currency and related instruments can be adversely affected by government exchange controls, limitations or restrictions on repatriation of currency, and manipulations or exchange restrictions imposed by governments. Currency exchange rates may also fluctuate based on broader factors extrinsic to any particular country's economy. There can be no assurance that currency transactions or currency hedging techniques will be successful. |  |  |  |  |
Over Counter Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Over-the-Counter Risk. Securities and derivatives traded in OTC markets may trade in smaller volumes, and their prices may be more volatile, than securities principally traded on securities exchanges. Such securities may be less liquid than more widely traded securities. In addition, the prices of such securities may include an undisclosed dealer markup, which the Fund pays as part of the purchase price. |  |  |  |  |
Private Placements And Restricted Securities Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Private Placements and Restricted Securities Risk. Private placement securities are securities that are not registered under the federal securities laws, and are generally eligible for sale only to certain eligible investors. The Fund may invest in securities that are purchased in private placements. Because there may be relatively few potential purchasers for such investments, especially under adverse market or economic conditions or in the event of adverse changes in the financial condition of the issuer, the Fund could find it more difficult to sell such securities when the Adviser believes it advisable to do so or may be able to sell such securities only at prices lower than if such securities were more widely held. At times, it may also be more difficult to determine the fair value of such securities for purposes of computing the NAV of the Fund. The sale of such investments may also be restricted under securities laws. |  |  |  |  |
Private Fund Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Private Fund Risk. The Fund invests in external private funds managed by independent external managers. These private funds are generally exempt from registration under the 1940 Act, and, therefore, will not be required to adhere to the restrictions and requirements under the 1940 Act. Accordingly, the provisions of the 1940 Act (which, among other things, require investment companies to have a majority of disinterested directors, require securities to be held in custody by a bank or broker in accordance with rules requiring the segregation of securities, prohibit the investment companies from engaging in certain transactions with its affiliates and regulate the relationship between advisers and investment companies) are not applicable to such private funds. Shares of private funds are not publicly traded and generally are not liquid investments. Additional risks associated with investing in private funds include, among other things, that private funds may incur leverage for investment or other purposes, which may increase the volatility of investments in private funds; private funds generally may invest without limitation in restricted and illiquid investments; the Fund relies primarily on information provided by external managers of the private funds in valuing its investments in private funds; the external managers of the private funds often have broad indemnification rights from the private fund and limitations on liability; neither the Fund nor the Adviser controls the external managers of these private funds; and there can be no assurances that an external manager will manage its private funds in a manner consistent with either the Fund's investment objectives and strategies or with the stated investment policies and restrictions of the private fund. These characteristics present additional risks, including the possibility of risk of total loss, for shareholders of private funds. |  |  |  |  |
Securities Lending Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Securities Lending Risk. For the purposes of reducing borrowing costs or achieving income, the Fund may lend its portfolio securities to brokers, dealers, and other financial institutions provided a number of conditions are satisfied, including that the loan is fully collateralized. When the Fund lends portfolio securities, its investment performance will continue to reflect changes in the value of the securities loaned. Securities lending involves the risk of loss of rights in the collateral or delay in recovery of the collateral if the borrower fails to return the security loaned or becomes insolvent. The Fund may pay lending fees to a party arranging the loan. Cash collateral received by the Fund in securities lending transactions may be invested in short-term liquid fixed income instruments or in money market or short-term mutual funds, or similar investment vehicles, including affiliated money market or short-term mutual funds. The Fund bears the risk of such investments. |  |  |  |  |
Leverage Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Leverage Risk. The Fund is permitted to obtain leverage, under limited circumstances, using any form or combination of financial leverage instruments, including through funds borrowed from banks or other financial institutions (i.e., a credit facility), margin facilities, the issuance of Preferred Stock or notes and leverage attributable to reverse repurchase agreements, dollar rolls or similar transactions. The Fund may use leverage opportunistically and may choose to increase or decrease its leverage, or use different types or combinations of leveraging instruments, at any time based on the Fund's assessment of market conditions and the investment environment. The 1940 Act generally limits the extent to which the Fund may utilize borrowings and "uncovered" transactions that may give rise to a form of leverage, including reverse repurchase agreements, dollar rolls, swaps, futures and forward contracts, options and other derivative transactions, together with any other senior securities representing indebtedness, to 33 1​/3%, of the Fund's total net assets at the time utilized. In addition, the 1940 Act limits the extent to which the Fund may issue Preferred Stock to 50% of the Fund's total net assets (less the Fund's obligations under senior securities representing indebtedness). Reverse repurchase agreements involve the risks that the interest income earned on the investment of the proceeds will be less than the interest expense and Fund expenses associated with the repurchase agreement, that the market value of the securities sold by the Fund may decline below the price at which the Fund is obligated to repurchase such securities and that the securities may not be returned to the Fund. There is no assurance that the reverse repurchase agreements can be successfully employed. Dollar roll transactions involve the risk that the market value of the securities the Fund is required to purchase may decline below the agreed upon repurchase price of those securities. Successful use of dollar rolls may depend upon the Investment Manager's ability to correctly predict interest rates and prepayments. There is no assurance that dollar rolls can be successfully employed. In connection with reverse repurchase agreements and dollar rolls, the Fund will also be subject to counterparty risk with respect to the purchaser of the securities. If the broker/dealer to whom the Fund sells securities becomes insolvent, the Fund's right to purchase or repurchase securities may be restricted. "Covered" reverse repurchase agreements, dollar rolls, swaps, futures and forward contracts, options and other derivative transactions will not be counted against the foregoing limits under the 1940 Act. The Fund will "cover" its derivative positions by segregating an amount of cash and/or liquid securities as required by the 1940 Act and applicable SEC interpretations and guidance from time to time. Alternatively, the Fund may enter into an offsetting position or own positions covering its obligations with respect to the transaction; otherwise, this transaction will be considered "uncovered." The Fund may not cover an applicable derivative transaction if it does not need to do so to comply with the foregoing 1940 Act requirements and, in the view of the Adviser, the assets that would have been used to cover could be better used for a different purpose. However, these transactions, even if covered, may represent a form of economic leverage and will create risks. The potential loss on derivative instruments may be substantial relative to the initial investment therein. In addition, these segregation and coverage requirements could result in the Fund maintaining securities positions that it would otherwise liquidate, segregating assets at a time when it might be disadvantageous to do so or otherwise restricting portfolio management. Such segregation and cover requirements will not limit or offset losses on related positions. Use of leverage creates an opportunity for increased income and return for Common Shareholders but, at the same time, creates risks, including the likelihood of greater volatility in the NAV and market price of, and distributions on, the Common Shares. Increases and decreases in the value of the Fund's portfolio will be magnified if the Fund uses leverage. In particular, leverage may magnify interest rate risk, which is the risk that the prices of portfolio securities will fall (or rise) if market interest rates for those types of securities rise (or fall). As a result, leverage may cause greater changes in the Fund's NAV, which will be borne entirely by the Fund's Common Shareholders. There can be no assurance that the Fund will use leverage or that its leveraging strategy will be successful during any period in which it is employed. The Fund may be subject to investment restrictions of one or more NRSROs and/or credit facility lenders as a result of its use of financial leverage. These restrictions may impose asset coverage or portfolio composition requirements that are more stringent than those imposed on the Fund by the 1940 Act. It is not anticipated that these covenants or portfolio requirements will significantly impede the Adviser in managing the Fund's portfolio in accordance with its investment objective and policies. Nonetheless, if these covenants or guidelines are more restrictive than those imposed by the 1940 Act, the Fund may not be able to utilize as much leverage as it otherwise could have, which could reduce the Fund's investment returns. In addition, the Fund expects that any notes it issues or credit facility it enters into would contain covenants that, among other things, will likely impose geographic exposure limitations, credit quality minimums, liquidity minimums, concentration limitations and currency hedging requirements on the Fund. These covenants would also likely limit the Fund's ability to pay distributions in certain circumstances, incur additional debt, change fundamental investment policies and engage in certain transactions, including mergers and consolidations. Such restrictions could cause the Adviser to make different investment decisions than if there were no such restrictions and could limit the ability of the Board and Common Shareholders to change fundamental investment policies. The costs of a financial leverage program (including the costs of offering any Preferred Stock and notes) will be borne entirely by Common Shareholders and consequently will result in a reduction of the NAV of the Common Shares. During periods in which the Fund is using leverage, the fees paid by the Fund for investment advisory services will be higher than if the Fund did not use leverage because the investment advisory fees paid will be calculated on the basis of the Fund's total net assets, which includes proceeds from (and assets subject to) any credit facility, margin facility, any issuance of Preferred Stock or notes, any reverse repurchase agreements, dollar rolls or similar transactions. This will create a conflict of interest between the Adviser, on the one hand, and Common Shareholders, on the other hand. To monitor this potential conflict, the Board intends to periodically review the Fund's use of leverage, including its impact on Fund performance and on the Adviser's fees. The Fund may also offset derivative positions against one another or against other assets to manage the effective market exposure resulting from derivatives in its portfolio. In addition, to the extent that any offsetting positions do not behave in relation to one another as expected, the Fund may perform as if it were leveraged. The Fund's use of leverage could create the opportunity for a higher return for Common Shareholders but would also result in special risks for Common Shareholders and can magnify the effect of any losses. If the income and gains earned on the securities and investments purchased with leverage proceeds are greater than the cost of the leverage, the return on the Common Shares will be greater than if leverage had not been used. Conversely, if the income and gains from the securities and investments purchased with such proceeds do not cover the cost of leverage, the return on the Common Shares will be less than if leverage had not been used. There is no assurance that a leveraging strategy will be successful. Leverage involves risks and special considerations for Common Shareholders, including: • the likelihood of greater volatility of NAV and market price of the Common Shares than a comparable portfolio without leverage; • the risk that fluctuations in interest rates on borrowings and short-term debt or in the dividend rates on any Preferred Stock that the Fund may pay will reduce the return to the Common Shareholders or will result in fluctuations in the dividends paid on the Common Shares; • the effect of leverage in a declining market, which is likely to cause a greater decline in the NAV of the Common Shares than if the Fund were not leveraged, which may result in a greater decline in the market price of the Common Shares; and • when the Fund uses certain types of leverage, the investment advisory fee payable to the Adviser will be higher than if the Fund did not use leverage. On October 28, 2020, the SEC adopted Rule 18f-4 under the Act providing for the regulation of a registered investment company's use of derivatives and certain related instruments. Among other things, Rule 18f-4 limits a fund's derivatives exposure through a value-at-risk test and requires the adoption and implementation of a derivatives risk management program for certain derivatives users. Subject to certain conditions, limited derivatives users (as defined in Rule 18f-4), however, would not be subject to the full requirements of Rule 18f-4. In connection with the adoption of Rule 18f-4 the SEC also eliminated the asset segregation framework arising from prior SEC guidance for covering derivatives and certain financial instruments. Compliance with Rule 18f-4 will be required on August 19, 2022. As the Fund comes into compliance, the Fund's approach to asset segregation and coverage requirements will be impacted. In addition, Rule 18f-4 could restrict the Fund's ability to engage in certain derivatives transactions and/or increase the costs of such derivatives transactions, which could adversely affect the value or performance of the Fund and the Common Shares and/or the Fund's distribution rate. |  |  |  |  |
Risks Associated With Investing In High Yield Securities [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Risks Associated with Investing in High Yield Securities. High yield bonds, which are sometimes called "junk" bonds, are highly speculative securities that are usually issued by smaller, less creditworthy and/or highly leveraged (indebted) companies. Because investment in lower-rated or unrated securities involves greater investment risk, achievement of the Fund's investment objective is more dependent on the portfolio managers' credit analysis than with respect to the Fund's investments in higher-rated securities. The portfolio managers do not employ a rating valuation for unrated securities. Decisions to purchase and sell these securities are based on the portfolio manager's evaluation of their investment potential and not on the ratings assigned by credit agencies. Compared with investment-grade bonds, high yield bonds carry a greater degree of risk and are less likely to make payments of interest and principal. Compared to investment-grade debt securities, market developments and the financial and business conditions of the corporation issuing high yield securities influence high yield securities price and liquidity more than changes in interest rates when compared to investment grade debt securities. Lower-rated securities may be more susceptible to real or perceived adverse economic and competitive industry conditions than investment grade securities. A projection of an economic downturn, for example, could cause a decline in the prices of lower-rated securities because the advent of a recession could lessen the ability of a highly leveraged company to make principal and interest payments on its debt securities. New laws and proposed new laws could negatively impact the market for high yield bonds. Insufficient liquidity in the high yield bond market may make it more difficult to dispose of high yield bonds and may cause the Fund to experience sudden and substantial price declines. A lack of reliable, objective data or market quotations may make it more difficult to value high yield bonds accurately. There is no limit on the ratings of high yield securities that may be purchased or held by the Fund, and the Fund may invest in securities that are in default. |  |  |  |  |
Valuation Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Valuation Risk. Unlike publicly traded common stock which trades on national exchanges, there is no central place or exchange for loans or fixed income instruments to trade. Loans and fixed income instruments generally trade on an OTC market, which may be anywhere in the world where the buyer and seller can settle on a price. Due to the lack of centralized information and trading, the valuation of loans or fixed income instruments may carry more risk than that of common stock. Uncertainties in the conditions of the financial market, unreliable reference data, lack of transparency and inconsistency of valuation models and processes may lead to inaccurate asset pricing. In addition, other market participants may value securities differently than the Fund. As a result, the Fund may be subject to the risk that when a loan or fixed income instrument is sold in the market, the amount received by the Fund is less than the value of such loans or fixed income instruments carried on the Fund's books. |  |  |  |  |
U.S. Government Securities Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | U.S. Government Securities Risk. Certain U.S. government securities are supported by the full faith and credit of the United States; others are supported by the right of the issuer to borrow from the U.S. Treasury; others are supported by the discretionary authority of the U.S. government to purchase the agency's obligations; and still others are supported only by the credit of the issuing agency, instrumentality, or enterprise. Although U.S. government-sponsored enterprises such as the Federal Home Loan Mortgage Corporation (Freddie Mac) and the Federal National Mortgage Association (Fannie Mae) may be chartered or sponsored by Congress, they are not funded by Congressional appropriations, and their securities are not issued by the U.S. Treasury, are not supported by the full faith and credit of the U.S. government, and involve increased credit risks in comparison to U.S. Treasury securities or other securities supported by the full faith and credit of the U.S. government. Any security guaranteed by the U.S. government or its agencies or instrumentalities, or a security backed by the U.S. Treasury or the full faith and credit of the United States, is guaranteed or backed only as to the timely payment of interest and principal when held to maturity, but the market values for such securities are not guaranteed and will fluctuate. Any market movements, regulatory changes or changes in political or economic conditions that affect the U.S. government agencies or instrumentalities in which the Fund invests may have a significant impact on the Fund's performance. Events that would adversely affect the market prices of securities issued or guaranteed by one government agency or instrumentality may adversely affect the market price of securities issued or guaranteed by other government agencies or instrumentalities. Because many types of U.S. government securities trade actively outside the United States, their prices may rise and fall as changes in global economic conditions affect the demand for these securities. |  |  |  |  |
Mortgage Related And Asset Backed Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Mortgage-Related and Asset-Backed Risk. Mortgage-related and other asset-backed securities represent interests in "pools" of mortgages or other assets such as consumer loans or receivables held in trust and often involve risks that are different from or possibly more acute than risks associated with other types of debt instruments. Mortgage-related securities are subject to prepayment risk and, thus, can be highly sensitive to changes in interest rates. Generally, in a period of rising interest rates, individual borrowers are less likely to exercise prepayment options which tend to extend the expected maturity of mortgage-related securities, making them more sensitive to changes in interest rates. As a result, if the Fund holds mortgage-related securities, rising interest rates may cause the Fund to exhibit additional volatility due to the increased expected average life of its mortgage-related holdings. When interest rates decline, borrowers may pay their mortgages sooner than expected. These pre-payments can reduce the returns of the Fund because the Fund may realize losses on securities that were acquired at a premium to par and the Fund may have to reinvest the proceeds from prepayments at the lower prevailing interest rates which can reduce the Fund's yield. Mortgage-related securities may be either pass-through securities or CMOs. Pass-through securities represent a right to receive principal and interest payments collected on a pool of mortgages which are passed through to security holders. CMOs are created by dividing the principal and interest payments collected on a pool of mortgages into several cash flow streams ("tranches") with different priority rights to portions of the underlying mortgage payments. Certain CMO tranches may represent a right to receive specific sources of cash flow such as interest-only ("IOs") or principal-only ("POs"). These securities are frequently referred to as "stripped securities" and may be extremely sensitive to changes in interest rates. Stripped securities can produce higher yields than more traditional securities. However, stripped mortgage securities are highly sensitive to changes in interest and prepayment rates. As a result, such securities are extremely volatile. For example, generally, the value of principal-only stripped mortgage-related securities fall as interest rates rise, whereas the value of interest-only stripped mortgage-related securities rise as interest rates rise, and vice versa. If the Fund invests in CMO tranches (including CMO tranches issued by government agencies) and interest rates move in a manner not anticipated by the managers, it is possible that the Fund could lose all or substantially all of its investment. The market prices of CMOs structured as accrual certificates (also known as "Z-Bonds") are affected to a greater extent by interest rate changes and therefore tend to be more volatile than securities which pay current interest in cash. Mortgage-related securities, and in particular those not backed by a government guarantee, are subject to credit risk. The Fund's investments in other asset-backed securities are subject to risks similar to those associated with mortgage-related securities, as well as additional risks associated with the nature of the assets and the servicing of those assets. Payment of principal and interest on asset-backed securities may be largely dependent upon the cash flows generated by the assets backing the securities, and asset-backed securities may not have the benefit of any security interest in the related assets. Certain asset-backed securities, including securities backed by auto loans, are subject to subprime lending and loan-to-value risk. One of the most significant risks to a holder of an auto loan asset-backed security is the fluctuation of the value of the loans acquired. The higher the loan-to-value ratio, the riskier the loan is for a lender. Further, subprime loans underlying auto loan asset-backed securities may have higher default rates than loans that meet more stringent underwriting requirements. |  |  |  |  |
Adjustable-Rate Mortgage ("ARM") Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Adjustable-Rate Mortgage ("ARM") Risk. During periods of extreme fluctuations in interest rates, the resulting fluctuations of ARM rates could affect the ARMs' market value. Most ARMs generally have annual reset limits or "caps". Fluctuations in interest rates above these levels, thus, could cause the mortgage-backed securities to "cap out" and to behave more like long-term, fixed-rate debt securities. During periods of declining interest rates, of course, the coupon rates may readjust downward and result in lower yields. Because of this feature, the value of ARMs will likely not rise during periods of declining interest rates to the same extent as fixed-rate instruments. |  |  |  |  |
Stripped Securities Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Stripped Securities Risk. Stripped securities are more volatile than securities where the principal and interest payments have not been separated. The value of stripped securities generally fluctuates more in response to interest rate movements than the value of traditional bonds because a change in interest rates may increase or decrease prepayments of principal. While the U.S. government or its agencies or instrumentalities may guarantee the full repayment of principal on stripped securities they issue, repayment of interest is generally guaranteed only while the underlying assets or pools of assets are outstanding. The market for stripped securities may be limited, which may make it difficult for the Fund to dispose of them quickly at an acceptable price. |  |  |  |  |
Sovereign And Government Related Debt [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Sovereign and Government-Related Debt. Sovereign debt includes securities issued or guaranteed by a non-U.S. sovereign government or its agencies, authorities, or political sub-divisions. Government-related debt includes securities issued by non-U.S. regional or local governmental entities or government-controlled entities. In the event an issuer of sovereign debt or government- related debt is unable or unwilling to make scheduled payments of interest or principal, holders may be asked to participate in a restructuring of the debt and to extend further credit to the issuer. In the event of a default by a governmental entity on a sovereign debt obligation, there may be few or no effective legal remedies for collecting on such debt. |  |  |  |  |
Risks Associated With Investing In Convertible Securities [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Risks Associated with Investing in Convertible Securities. A convertible security is a bond, debenture, or note that may be exchanged for particular common stocks in the future at a predetermined price or formula within a specified period of time. A convertible security entitles the holder to receive interest paid or accrued on the debt security until the convertible security matures or is redeemed. Prior to redemption, convertible securities provide benefits similar to nonconvertible debt securities in that they generally provide income with higher yields than those of similar common stocks. Convertible securities may entail less risk than the corporation's common stocks. Convertible securities are generally not investment grade. The risks of nonpayment of the principal and interest increase when debt securities are rated lower than investment grade or are not rated. |  |  |  |  |
Risks Associated With Deep Discount Securities [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Risks Associated with Deep Discount Securities. The high yield securities in which the Fund may invest may from time to time include debt securities of companies that are financially troubled, in default or are in bankruptcy or reorganization. These securities are called "Deep Discount Securities" and are deeply discounted from their face value. The Fund will invest in Deep Discount Securities when the portfolio managers believe that the issuer's financial condition is likely to improve. A debt instrument purchased at a deep discount, but prior to default, may pay a very high effective yield. If the issuer's financial condition improves, the underlying value of the securities may increase and result in a capital gain. If the issuer cannot meet its debt obligations, however, the Deep Discount Securities may stop generating income and lose its value or become worthless. The portfolio managers will balance the benefits of Deep Discount Securities with their risks. A diversified portfolio may reduce the overall impact of a Deep Discount Security in default or reduced in value, but the risk cannot be eliminated. A lack of reliable, objective data or market quotations may make it more difficult to value deep discount securities accurately. Insufficient liquidity in the deep discount security market may make it more difficult to dispose of such securities and may cause the Fund to experience sudden and substantial price declines. |  |  |  |  |
Risks Associated With Investing In Repurchase Agreements [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Risks Associated with Investing in Repurchase Agreements. A repurchase agreement is a short-term investment. The Fund acquires a debt security that the seller agrees to repurchase at a future time and set price. If the seller declares bankruptcy or defaults, the Fund may incur delays and expenses liquidating the security. The security may also decline in value or fail to provide income. |  |  |  |  |
Risks Associated With Short Selling [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Risks Associated with Short Selling. The Fund can lose money if the price of the security it sold short increases between the date of the short sale and the date on which the Fund replaces the borrowed security. These losses are theoretically unlimited. To borrow the security, the Fund also may be required to pay a premium, which would increase the cost of the security sold. The Fund will incur transaction costs in effecting short sales. The Fund's gains and losses will be decreased or increased, as the case may be, by the amount of the premium, dividends, interest, or expenses the Fund may be required to pay in connection with a short sale. |  |  |  |  |
Derivatives Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Derivatives Risk. The Fund may invest in derivatives, a category of investments that includes forward non-U.S. currency exchange contracts, futures, options and swaps to protect its investments against changes resulting from market conditions or currency changes (a practice called "hedging"), to reduce transaction costs or to manage cash flows. Forward non-U.S. currency exchange contracts, futures and options are called derivatives because their value is derived from an underlying asset or economic factor. Derivatives are often more volatile than other investments and may magnify the Fund's gains or losses. There are various factors that affect the Fund's ability to achieve its objectives with derivatives. Successful use of a derivative depends on the degree to which prices of the underlying assets correlate with price movements in the derivatives the Fund buys or sells. The Fund could be negatively affected if the change in market value of its securities fails to correlate perfectly with the values of the derivatives it purchased or sold. In addition, derivatives can be volatile and involve significant risks, including counterparty risk (the risk that the other party to a contract defaults or refuses to honor the obligation), leverage risk (the risk that some derivatives entail embedded leverage magnifying losses) and liquidity risk (the risk that the derivative will be difficult to sell or close out at a favorable time or price). Changes in regulations relating to a mutual fund's use of derivatives and related instruments could potentially limit or impact the Fund's ability to invest in derivatives and adversely affect the value or performance of derivatives and the Fund. |  |  |  |  |
Market Discount Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Market Discount Risk. Common shares of closed-end investment companies like the Fund frequently trade at a discount from their NAV. Common shares of closed-end investment companies like the Fund have traded at prices higher than their NAV during some periods and have traded at prices lower than their NAV during other periods. The Fund cannot assure you that its Common Shares will trade at a price higher than or equal to NAV in the future. In addition to NAV, the market price of the Fund's Common Shares may be affected by such factors as distribution levels and stability (which are in turn affected by expenses, regulation affecting the timing and character of Fund distributions and other factors), portfolio credit quality, liquidity, market supply and demand and similar other factors relating to the Fund's portfolio holdings. The Fund's market price may also be affected by general market, economic or political conditions. The Common Shares are designed primarily for long-term investors and should not be viewed as a vehicle for trading purposes. You should not purchase Common Shares of the Fund if you intend to sell them shortly after purchase. |  |  |  |  |
Regulatory Risk Regulation As A Commodity Pool [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Regulatory Risk—Regulation as a Commodity Pool. The Adviser has claimed an exclusion from the definition of the term "commodity pool operator" with respect to the Fund pursuant to Regulation 4.5 promulgated by the CFTC under the Commodity Exchange Act (the "CEA"). The CFTC has adopted amendments to its rules that may affect the ability of the Adviser to claim this exclusion. The ongoing compliance implications of these amendments are not fully effective and their scope of application is still uncertain. The Adviser will be limited in its ability to use futures or options on futures or engage in swaps transactions on behalf of the Fund as a result of claiming the exclusion. In the event the Adviser fails to qualify for the exclusion and is required to register as a "commodity pool operator," the Adviser will become subject to additional disclosure, recordkeeping and reporting requirements with respect to the Fund, which may increase the Fund's expenses. |  |  |  |  |
Risks Related To The Funds Clearing Broker And Central Clearing Counterparty [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Risks related to the Fund's Clearing Broker and Central Clearing Counterparty. The CEA and CFTC regulations require swaps and futures clearing brokers registered as "futures commission merchants" to segregate from the broker's proprietary assets all funds and other property received from customers with respect to any orders for the purchase or sale of U.S. domestic futures contracts, options on futures contracts and cleared swaps. Similarly, the CEA requires each futures commission merchant to hold in a separate secure account all funds and other property received from customers with respect to any orders for the purchase or sale of foreign futures contracts and segregate any such funds from the funds received with respect to domestic futures contracts. However, all funds and other property received by a clearing broker from its customers are held by the clearing broker on a commingled basis in an omnibus account and may be accessed by the clearing broker, which may also invest any such funds in certain instruments permitted under the applicable regulation. There is a risk that assets deposited by the Fund with any swaps or futures clearing broker as margin for futures contracts or cleared swaps may, in certain circumstances, be used to satisfy losses of other clients of the Fund's clearing broker. In addition, the assets of the Fund might not be fully protected in the event of the Fund's clearing broker's bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing broker's combined domestic customer accounts. Similarly, the CEA and CFTC regulations require a clearing organization approved by the CFTC as a derivatives clearing organization to segregate all funds and other property received from a clearing member's customers in connection with domestic futures, swaps and options contracts from any funds or other property held at the clearing organization to support the clearing member's proprietary trading. Nevertheless, with respect to futures and options contracts, a clearing organization may use assets of a non-defaulting customer held in an omnibus account at the clearing organization to satisfy payment obligations of a defaulting customer of the clearing member to the clearing organization. As a result, in the event of a default of the clearing broker's other clients or the clearing broker's failure to extend its own funds in connection with any such default, the Fund may not be able to recover the full amount of assets deposited by the clearing broker on behalf of the Fund with the clearing organization. |  |  |  |  |
Anti Takeover Provisions Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Anti-Takeover Provisions Risk. Certain provisions of the Fund's Certificate of Incorporation, as amended ("Certificate of Incorporation") may be regarded as "anti-takeover" provisions. These provisions require the affirmative vote or consent of the holders of at least two-thirds of the outstanding shares of the Fund for a merger or consolidation of the Fund with an open-end investment company, a merger or consolidation of the Fund with a closed-end investment company with different voting requirements, dissolution of the Fund, a sale of all or substantially all of the assets of the Fund or an amendment to the Fund's Certificate of Incorporation making the common stock a redeemable security or reducing the two-thirds vote required by the Certificate of Incorporation. |  |  |  |  |
Risks Relating to Fund's RIC Status [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Risks Relating to Fund's RIC Status. To qualify and remain eligible for the special tax treatment accorded to RICs and their shareholders under the Code, the Fund must meet certain source-of-income, asset diversification and annual distribution requirements. Very generally, in order to qualify as a RIC, the Fund must derive at least 90% of its gross income for each taxable year from dividends, interest, payments with respect to certain securities loans, gains from the sale or other disposition of stock, securities or foreign currencies, or other income derived with respect to its business of investing in stock or other securities and currencies. The Fund must also meet certain asset diversification requirements at the end of each quarter of each of its taxable years. Failure to meet these diversification requirements on the last day of a quarter may result in the Fund having to dispose of certain investments quickly in order to prevent the loss of RIC status. Any such dispositions could be made at disadvantageous prices or times, and may result in substantial losses to the Fund. In addition, in order to be eligible for the special tax treatment accorded RICs, the Fund must meet the annual distribution requirement, requiring it to distribute with respect to each taxable year at least 90% of the sum of its "investment company taxable income" (generally its taxable ordinary income and realized net short-term capital gains in excess of realized net long-term capital losses, if any) and its net tax-exempt income (if any), to its shareholders. If the Fund fails to qualify as a RIC for any reason and becomes subject to corporate tax, the resulting corporate taxes could substantially reduce its net assets, the amount of income available for distribution and the amount of its distributions. Such a failure would have a material adverse effect on the Fund and its Shareholders. In addition, the Fund could be required to recognize unrealized gains, pay substantial taxes and interest and make substantial distributions in order to re-qualify as a RIC. |  |  |  |  |
RIC-Related Risks of Investments Generating Non-Cash Taxable Income [member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | RIC-Related Risks of Investments Generating Non-Cash Taxable Income. Certain of the Fund's investments will require the Fund to recognize taxable income in a taxable year in excess of the cash generated on those investments during that year. In particular, the Fund invests in loans and other debt obligations that are treated as having "market discount" and/or OID for U.S. federal income tax purposes. Because the Fund may be required to recognize income in respect of these investments before, or without receiving, cash representing such income, the Fund may have difficulty satisfying the annual distribution requirements applicable to RICs and avoiding Fund-level U.S. federal income and/or excise taxes. Accordingly, the Fund may be required to sell assets, including at potentially disadvantageous times or prices, borrow, raise additional equity capital, make taxable distributions of its shares or debt securities, or reduce new investments, to obtain the cash needed to make these income distributions. If the Fund liquidates assets to raise cash, the Fund may realize gain or loss on such liquidations; in the event the Fund realizes net capital gains from such liquidation transactions, its Common Shareholders may receive larger capital gain distributions than they would in the absence of such transactions. |  |  |  |  |
Misconduct Of Employees And Of Third Party Service Providers Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Misconduct of Employees and of Third-Party Service Providers Risk. Misconduct by employees of the Adviser or by third- party service providers could cause significant losses to the Fund. Employee misconduct may include binding the Fund to transactions that exceed authorized limits or present unacceptable risks and unauthorized investment activities or concealing unsuccessful investment activities (which, in either case, may result in unknown and unmanaged risks or losses). Losses could also result from actions by third- party service providers, including, without limitation, failing to recognize trades and misappropriating assets. In addition, employees and third-party service providers may improperly use or disclose confidential information, which could result in litigation or serious financial harm, including limiting the Fund's business prospects or future marketing activities. No assurances can be given that the due diligence performed by the Adviser will identify or prevent any such misconduct. |  |  |  |  |
LIBOR Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | LIBOR Risk. The Fund's investments and payment obligations may be based on floating rates, such as London Interbank Offer Rate ("LIBOR"), Euro Interbank Offered Rate and other similar types of reference rates (each, a "Reference Rate"). The Chief Executive of the UK Financial Conduct Authority ("FCA"), which regulates LIBOR, has announced plans to phase out the use of LIBOR by the end of 2021. The transition may result in a reduction in the value of certain instruments held by a Fund or a reduction in the effectiveness of related Fund transactions such as hedges. There remains uncertainty regarding future utilization of LIBOR and the nature of any replacement rate (e.g., the Secured Overnight Financing Rate, which is intended to replace U.S. dollar LIBOR and measures the cost of overnight borrowings through repurchase agreement transactions collateralized with U.S. Treasury securities), and any potential effects of the transition away from LIBOR on a Fund or on certain instruments in which a Fund invests are not known and could result in losses to a Fund. In advance of the end of 2021, regulators and market participants will work together to identify or develop successor Reference Rates. Market participants have and will continue to focus on the transition mechanisms by which the Reference Rates in existing contracts or instruments may be amended, whether through marketwide protocols, fallback contractual provisions, bespoke negotiations or amendments or otherwise. Nonetheless, the termination of certain Reference Rates presents risks to the Fund. At this time, it is not possible to completely identify or predict the effect of any such changes, any establishment of alternative Reference Rates or any other reforms to Reference Rates that may be enacted in the UK or elsewhere. The elimination of a Reference Rate or any other changes or reforms to the determination or supervision of Reference Rates could have an adverse impact on the market for or value of any securities or payments linked to those Reference Rates and other financial obligations held by the Fund or on its overall financial condition or results of operations. In addition, any substitute Reference Rate and any pricing adjustments imposed by a regulator or by counterparties or otherwise may adversely affect the Fund's performance and/or NAV. |  |  |  |  |
Closed End Fund Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Closed-end Fund Risk. Unlike an open-ended fund, which needs to maintain liquidity for investor redemptions, the Fund may take advantage of the lack of daily in/outflows due to the Fund's closed-end nature. Consequently, the Fund may hold less cash and cash equivalents than it might otherwise hold if it were an open-end fund. In addition, the Fund may opportunistically own more "illiquid" assets (as defined by the SEC) and more assets that have greater near-term price volatility (including, but not limited to, interest-only securities). |  |  |  |  |
Share Repurchases Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Share Repurchases Risk. Any acquisition by the Fund of its shares, pursuant to its share repurchase program, will decrease the amount of total assets of the Fund, and therefore, may increase the Fund's expense ratio. If the Fund liquidates a portion of its investment portfolio in connection with a share repurchase, such liquidation might be at a time when independent investment judgment would not dictate such action, increasing the Fund's overall portfolio turnover (and related transaction costs) and making it more difficult for the Fund to achieve its investment objective. |  |  |  |  |
Interest Rate Risk [Member] |  |  |  |  |  |
General Description of Registrant [Abstract] |  |  |  |  |  |
Risk [Text Block] | Interest Rate Risk. As with most funds that invest in debt securities, changes in interest rates are one of the most important factors that could affect the value of an investment in the Fund. Interest rate risk is the risk that debt securities will decline in value because of increases in interest rates. Rising interest rates tend to cause the prices of debt securities (especially those with longer maturities) and the Fund's share price to fall. Generally, bonds with longer maturities have a greater duration and thus are subject to greater price volatility from changes in interest rates. Adjustable-rate instruments also react to interest rate changes in a similar manner although generally to a lesser degree (depending, however, on the characteristics of the reset terms, including the index chosen, frequency of reset and reset caps or floors, among other things). Low interest rates may pose heightened risks with respect to investments in fixed income securities. When interest rates rise from a low level, fixed income securities markets may experience lower prices, increased volatility and lower liquidity. The negative impact on fixed in-come securities from rate increases, regardless of the cause, could be swift and significant, which could result in significant losses by the Fund, even if such rate increases are anticipated by the portfolio managers. The Fund may be subject to heightened interest rate risk because the Federal Reserve has raised, and may continue to raise, interest rates. During periods of increasing interest rates the Fund may experience high redemptions and, as a result, increased portfolio turnover, which could increase the costs that the Fund incurs and may negatively impact the Fund's performance. |  |  |  |  |
[1] | Audits performed for the fiscal years indicated by the Fund's previous auditor, Ernst & Young LLP.

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