S000010030 [Member] Investment Risks - The Bond Fund	Oct. 31, 2025
Income Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Income Risk: The Fund’s ability to distribute income to shareholders depends on the yield available from the Fund’s investments. The Fund’s portfolio income may decline when market interest rates fall.
Credit Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Credit Risk: Credit risk is the risk that an issuer or guarantor of a fixed-income security may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a bond may decline because of concerns about the issuer’s ability or willingness to make such payments. This may impair the Fund’s liquidity or cause a deterioration in the Fund’s net asset value. In addition, the Fund may incur expenses in an effort to protect the Fund’s interests or enforce its rights against an issuer, guarantor or counterparty or may be hindered or delayed in exercising these rights.
Mortgage Backed and Asset Backed Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Mortgage-Backed and Asset-Backed Risk: Mortgage-backed securities, especially collateralized mortgage-backed securities, and asset-backed securities may be subject to risks that include price volatility, liquidity, enhanced sensitivity to interest rates, and greater risk of default during periods of economic downturn than other securities. As a result, these securities may be more difficult to value and liquidate, if necessary. To the extent the Fund invests in mortgage-backed securities that may be prepaid at the option of the obligor, sensitivity of such securities to changes in interest rates may increase (to the detriment of the Fund) when interest rates rise.
Call Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Call Risk: An issuer may exercise its right to pay principal on an obligation held by the Fund (such as a mortgage-backed or asset-backed security) earlier than expected. Under these circumstances, the Fund may be unable to recoup all of its initial investment and may also suffer from having to reinvest in lower yielding securities, securities with greater credit risks or securities with other, less favorable features.
Extension Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Extension Risk: An issuer may exercise its right to pay principal on an obligation held by the Fund (such as a mortgage-backed or asset-backed security) later than expected. This may happen when interest rates rise. Under these circumstances, the value of the obligation will decrease and the Fund will also suffer from the inability to invest in higher-yielding securities.
Prepayment Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Prepayment Risk: An issuer could exercise its right to pay principal on an obligation held by the Fund (such as a mortgage-backed or asset-backed security) earlier than expected. Prepayment of the underlying mortgage collateral of some fixed-income securities may result in a decreased rate of return and a decline in value of the securities.
Maturity Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Maturity Risk: The Fund will not necessarily hold its securities to maturity, which could result in loss of principal.
High Yield Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	High Yield Risk: High yield securities are subject to greater levels of credit and liquidity risk. High yield securities are considered speculative with respect to an issuer’s ability to make principal and interest payments and may be more volatile than higher-rated securities of similar maturity.
Investment Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Investment Risk: The value of your investment in this Fund may fluctuate, which means that you could lose money.
Issuer Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Issuer Risk: The value of a security owned by the Fund may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer’s goods or services.
Liquidity Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Liquidity Risk: The Fund may not be able to pay redemption proceeds within the time periods described in this Prospectus because of unusual market conditions, an unusually high number of redemption requests or other reasons. Liquidity risk may result from the lack of an active market or reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, causing increased supply in the market due to selling activity. Certain portfolio securities may be less liquid than others, which may make them difficult or impossible to sell at an advantageous time or price.
Management Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Management Risk: A strategy used by the Adviser could fail to produce the intended results.
Market Risks [Member]
Prospectus [Line Items]
Risk [Text Block]	Market Risk: Certain securities and other investments held by the Fund may experience increased volatility, illiquidity, or other potentially adverse effects in response to changing market conditions, inflation, changes in interest rates, lack of liquidity in the bond or equity markets, volatility in the equity markets, market disruptions caused by local or regional events such as financial institution failures, war, acts of terrorism, the spread of infectious illness (including epidemics and pandemics) or other public health issues, recessions or other events or adverse investor sentiment. Additionally, the imposition of tariffs or trade restrictions can disrupt global supply chains, increase costs for certain industries, and contribute to heightened market volatility, which may adversely affect the Fund’s investments.
Municipal Bond Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Municipal Bond Risk: Municipal securities prices can be significantly affected by political or public health changes as well as uncertainties in the municipal market related to taxation, legislative changes or the rights of municipal security holders. In addition, economic conditions at the state, regional and federal level may adversely affect the municipal bond market and an issuer’s ability to repay the obligation. Municipal lease obligations and certificates of participation are subject to the added risk that the governmental lessee will fail to appropriate funds to enable it to meet its payment obligations under the lease. While interest earned on municipal securities is generally not subject to federal tax, any interest earned on taxable municipal securities is fully taxable at the federal level and may be subject to tax at the state level.
U S Government Securities Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	U.S. Government Securities Risk: The U.S. Government may not provide financial support to U.S. Government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so. Although many U.S. Government securities purchased by the Fund may be chartered or sponsored by Acts of Congress, their securities are neither issued nor guaranteed by the United States Treasury and therefore are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government securities held by the Fund may greatly exceed their current resources, including their legal right to support from the U.S. Treasury. It is possible that these issuers will not have the funds to meet their payment obligations in the future. A security backed by the “full faith and credit” of the U.S. Government is guaranteed only as to its stated interest rate and face value at maturity, not its current market price. Just like other fixed-income securities, government-guaranteed securities will fluctuate in value when interest rates change.
Cybersecurity Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Cybersecurity Risk: Cybersecurity breaches may allow an unauthorized party to gain access to Fund assets, customer data, or proprietary information, or cause the Fund and/or its service providers to suffer data corruption or lose operational functionality.
Large Shareholder Purchase and Redemption Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Large Shareholder Purchase and Redemption Risk: The Fund may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Fund. Such large shareholder redemptions may cause the Fund to sell its securities at times when it would not otherwise do so, which may negatively impact the Fund’s net asset value and liquidity. Similarly, large purchases of the Fund’s shares may also adversely affect the Fund’s performance to the extent that the Fund is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. In addition, a large redemption could result in the Fund’s current expenses being allocated over a smaller asset base, leading to an increase in the Fund’s expense ratio.
Interest Rate Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Interest Rate Risk: Interest rate risk is the risk that the value of the Fund’s portfolio will decline when interest rates rise. The magnitude of this decline will often be greater for longer-term, fixed-income securities than shorter-term securities. Changing interest rates may have unpredictable effects on the markets and on the Fund’s investments. Declines in interest rate levels could cause the Fund’s earnings to fall below the Fund’s expense ratio, resulting in a negative yield and a decline in the Fund’s share price. The magnitude of these fluctuations in the market price of bonds and other fixed-income securities is generally greater for those securities with longer maturities. Fluctuations in the market price of the Fund’s investments will not affect interest income derived from instruments already owned by the Fund, but will be reflected in the Fund’s net asset value. The Fund may lose money if short-term or long-term interest rates rise sharply in a manner not anticipated by Fund management. A general rise in interest rates has the potential to cause investors to move out of fixed-income securities on a large scale, which may increase redemptions from funds that hold large amounts of fixed-income securities. Heavy redemptions could cause the Fund to sell assets at inopportune times or at a loss or depressed value and could hurt the Fund’s performance.
Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	As with any mutual fund, it is possible to lose money on an investment in the Fund.
Risk Not Insured Depository Institution [Member]
Prospectus [Line Items]
Risk [Text Block]	An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.

S000010030 [Member] Investment Risks - The Bond Fund

Oct. 31, 2025

Income Risk: The Fund’s ability to distribute income to shareholders depends on the yield available from the Fund’s investments. The Fund’s portfolio income may decline when market interest rates fall.

Prospectus [Line Items]

Risk [Text Block]

Credit Risk: Credit risk is the risk that an issuer or guarantor of a fixed-income security may be unable or unwilling to make interest and principal payments when due and the related risk that the value of a bond may decline because of concerns about the issuer’s ability or willingness to make such payments. This may impair the Fund’s liquidity or cause a deterioration in the Fund’s net asset value. In addition, the Fund may incur expenses in an effort to protect the Fund’s interests or enforce its rights against an issuer, guarantor or counterparty or may be hindered or delayed in exercising these rights.

Mortgage Backed and Asset Backed Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Mortgage-Backed and Asset-Backed Risk: Mortgage-backed securities, especially collateralized mortgage-backed securities, and asset-backed securities may be subject to risks that include price volatility, liquidity, enhanced sensitivity to interest rates, and greater risk of default during periods of economic downturn than other securities. As a result, these securities may be more difficult to value and liquidate, if necessary. To the extent the Fund invests in mortgage-backed securities that may be prepaid at the option of the obligor, sensitivity of such securities to changes in interest rates may increase (to the detriment of the Fund) when interest rates rise.

Call Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Call Risk: An issuer may exercise its right to pay principal on an obligation held by the Fund (such as a mortgage-backed or asset-backed security) earlier than expected. Under these circumstances, the Fund may be unable to recoup all of its initial investment and may also suffer from having to reinvest in lower yielding securities, securities with greater credit risks or securities with other, less favorable features.

Extension Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Extension Risk: An issuer may exercise its right to pay principal on an obligation held by the Fund (such as a mortgage-backed or asset-backed security) later than expected. This may happen when interest rates rise. Under these circumstances, the value of the obligation will decrease and the Fund will also suffer from the inability to invest in higher-yielding securities.

Prepayment Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Prepayment Risk: An issuer could exercise its right to pay principal on an obligation held by the Fund (such as a mortgage-backed or asset-backed security) earlier than expected. Prepayment of the underlying mortgage collateral of some fixed-income securities may result in a decreased rate of return and a decline in value of the securities.

Maturity Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Maturity Risk: The Fund will not necessarily hold its securities to maturity, which could result in loss of principal.

High Yield Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

High Yield Risk: High yield securities are subject to greater levels of credit and liquidity risk. High yield securities are considered speculative with respect to an issuer’s ability to make principal and interest payments and may be more volatile than higher-rated securities of similar maturity.

Investment Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Investment Risk: The value of your investment in this Fund may fluctuate, which means that you could lose money.

Issuer Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Issuer Risk: The value of a security owned by the Fund may decline for a reason directly related to the issuer, such as management performance, financial leverage and reduced demand for the issuer’s goods or services.

Liquidity Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Liquidity Risk: The Fund may not be able to pay redemption proceeds within the time periods described in this Prospectus because of unusual market conditions, an unusually high number of redemption requests or other reasons. Liquidity risk may result from the lack of an active market or reduced number and capacity of traditional market participants to make a market in fixed income securities, and may be magnified in a rising interest rate environment or other circumstances where investor redemptions from fixed income mutual funds may be higher than normal, causing increased supply in the market due to selling activity. Certain portfolio securities may be less liquid than others, which may make them difficult or impossible to sell at an advantageous time or price.

Management Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Management Risk: A strategy used by the Adviser could fail to produce the intended results.

Market Risks [Member]

Prospectus [Line Items]

Risk [Text Block]

Market Risk: Certain securities and other investments held by the Fund may experience increased volatility, illiquidity, or other potentially adverse effects in response to changing market conditions, inflation, changes in interest rates, lack of liquidity in the bond or equity markets, volatility in the equity markets, market disruptions caused by local or regional events such as financial institution failures, war, acts of terrorism, the spread of infectious illness (including epidemics and pandemics) or other public health issues, recessions or other events or adverse investor sentiment. Additionally, the imposition of tariffs or trade restrictions can disrupt global supply chains, increase costs for certain industries, and contribute to heightened market volatility, which may adversely affect the Fund’s investments.

Municipal Bond Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Municipal Bond Risk: Municipal securities prices can be significantly affected by political or public health changes as well as uncertainties in the municipal market related to taxation, legislative changes or the rights of municipal security holders. In addition, economic conditions at the state, regional and federal level may adversely affect the municipal bond market and an issuer’s ability to repay the obligation. Municipal lease obligations and certificates of participation are subject to the added risk that the governmental lessee will fail to appropriate funds to enable it to meet its payment obligations under the lease. While interest earned on municipal securities is generally not subject to federal tax, any interest earned on taxable municipal securities is fully taxable at the federal level and may be subject to tax at the state level.

U S Government Securities Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

U.S. Government Securities Risk: The U.S. Government may not provide financial support to U.S. Government agencies, instrumentalities or sponsored enterprises if it is not obligated to do so. Although many U.S. Government securities purchased by the Fund may be chartered or sponsored by Acts of Congress, their securities are neither issued nor guaranteed by the United States Treasury and therefore are not backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. Government securities held by the Fund may greatly exceed their current resources, including their legal right to support from the U.S. Treasury. It is possible that these issuers will not have the funds to meet their payment obligations in the future. A security backed by the “full faith and

credit” of the U.S. Government is guaranteed only as to its stated interest rate and face value at maturity, not its current market price. Just like other fixed-income securities, government-guaranteed securities will fluctuate in value when interest rates change.

Cybersecurity Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Cybersecurity Risk: Cybersecurity breaches may allow an unauthorized party to gain access to Fund assets, customer data, or proprietary information, or cause the Fund and/or its service providers to suffer data corruption or lose operational functionality.

Large Shareholder Purchase and Redemption Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Large Shareholder Purchase and Redemption Risk: The Fund may experience adverse effects when certain large shareholders purchase or redeem large amounts of shares of the Fund. Such large shareholder redemptions may cause the Fund to sell its securities at times when it would not otherwise do so, which may negatively impact the Fund’s net asset value and liquidity. Similarly, large purchases of the Fund’s shares may also adversely affect the Fund’s performance to the extent that the Fund is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. In addition, a large redemption could result in the Fund’s current expenses being allocated over a smaller asset base, leading to an increase in the Fund’s expense ratio.

Interest Rate Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Interest Rate Risk: Interest rate risk is the risk that the value of the Fund’s portfolio will decline when interest rates rise. The magnitude of this decline will often be greater for longer-term, fixed-income securities than shorter-term securities. Changing interest rates may have unpredictable effects on the markets and on the Fund’s investments. Declines in interest rate levels could cause the Fund’s earnings to fall below the Fund’s expense ratio, resulting in a negative yield and a decline in the Fund’s share price. The magnitude of these fluctuations in the market price of bonds and other fixed-income securities is generally greater for those securities with longer maturities. Fluctuations in the market price of the Fund’s investments will not affect interest income derived from instruments already owned by the Fund, but will be reflected in the Fund’s net asset value. The Fund may lose money if short-term or long-term interest rates rise sharply in a manner not anticipated by Fund

management. A general rise in interest rates has the potential to cause investors to move out of fixed-income securities on a large scale, which may increase redemptions from funds that hold large amounts of fixed-income securities. Heavy redemptions could cause the Fund to sell assets at inopportune times or at a loss or depressed value and could hurt the Fund’s performance.

Risk Lose Money [Member]

Prospectus [Line Items]

Risk [Text Block]

As with any mutual fund, it is possible to lose money on an investment in the Fund.

Risk Not Insured Depository Institution [Member]

Prospectus [Line Items]

Risk [Text Block]

An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any government agency.