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S000057732 [Member] Investment Risks - Morningstar Defensive Bond Fund
Apr. 30, 2026
Active Management Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Active Management Risk—The Fund is actively managed with discretion and may underperform market indexes or other mutual funds with similar investment objectives. The Fund’s performance depends heavily on Morningstar’s skill and judgment in managing assets directly (through open- and closed‑end investment companies, ETFs and individual securities) and allocating assets to subadvisers and Morningstar and each subadviser’s skill in selecting securities and executing its strategy. The Fund could experience losses if these judgments prove to be incorrect.
Asset Allocation Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Asset Allocation Risk—In an attempt to invest in areas that look most attractive based on market, economic or other conditions, the Fund may favor asset classes or market segments that cause the Fund to underperform its benchmark. Given the wide latitude with which the adviser manages this portfolio, you should expect this Fund to periodically underperform broad markets.
Market Risks [Member]  
Prospectus [Line Items]  
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Market Risk—The value of stocks and other securities can be highly volatile and prices may fluctuate widely, which means you should expect a wide range of returns and could lose money, even over a long time period. Various economic, industry, regulatory, political or other factors (such as natural disasters, epidemics and pandemics, war, terrorism, changes in trade regulation or economic sanctions, conflicts, social unrest, recessions, or the threat or occurrence of a government shutdown) may disrupt U.S. and world economies and can dramatically affect markets generally, certain industry sectors, and/or individual companies.
Foreign Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Foreign Securities Risk—Securities of non‑U.S. issuers may be less liquid, more volatile, and harder to value than U.S. securities. They may also be subject to political, economic, and regulatory risks, and market instability. Non‑U.S. issuers also may not be subject to uniform accounting, auditing and financial reporting standards and there may be less reliable and publicly available financial and other information about such issuers, as compared to U.S. issuers.
Valuation risk [Member]  
Prospectus [Line Items]  
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Valuation riskThe amount the Fund actually receives when selling (or otherwise disposing of) an investment may differ from the Fund’s recorded valuation of that investment. This discrepancy is more likely for investments that trade infrequently, are valued using fair-value methods or third-party pricing vendors, or are held during periods of market stress or heightened volatility. Consequently, the Fund may realize a larger loss or a smaller gain than anticipated based on its stated valuation. Additionally, the Fund’s valuation process could be disrupted by technology failures or errors originating from pricing vendors or other external service providers.
Cybersecurity Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Cybersecurity Risk—The Fund, like all companies, may be susceptible to operational and information security risks. Cybersecurity failures or breaches of the Fund or its service providers or the issuers of securities in which a Fund invests, have the ability to cause disruptions and impact business operations, and the Fund and its shareholders could be negatively impacted as a result.
Interest Rate Risks [Member]  
Prospectus [Line Items]  
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Interest-Rate Risk—The value of fixed-income securities will typically decline when interest rates rise. The Fund may be subject to a greater risk of rising interest rates during low interest rate environments.
Call Risks [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Call Risk—During periods of falling interest rates, an issuer may call or repay a higher-yielding fixed income security before its maturity date, forcing the Fund to reinvest in fixed income securities with lower interest rates than the original obligations.
Credit Risks [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Credit Risk—Issuers of fixed-income securities could default or be downgraded if they fail to make required payments of principal or interest.
High Yield Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
High-Yield Risk—High-yield securities and unrated securities of similar credit quality (commonly known as junk bonds) are subject to greater levels of credit, valuation and liquidity risks. High-yield securities are considered speculative with respect to the issuer’s continuing ability to make principal and interest payments.
Mortgage Related and Other Asset Backed Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Mortgage-Related and Other Asset-Backed Securities Risk—Mortgage- and asset-backed securities represent interests in “pools” of mortgages or other assets, including consumer loans or receivables held in trust.
Mortgage- and asset-backed securities are subject to credit and interest rate risks, as well as extension and prepayment risks:
Extension Risk—Rising interest rates tend to extend the duration of mortgage-related securities, making them more sensitive to changes in interest rates. As a result, in a period of rising interest rates, if the Fund holds mortgage-related securities, it may exhibit additional volatility.
Prepayment Risk—When interest rates decline, the value of mortgage-related securities with prepayment features may not increase as much as other fixed-income securities because borrowers may pay off their mortgages sooner than expected. In addition, the potential impact of prepayment on the price of asset-backed and mortgage-backed securities may be difficult to predict and result in greater volatility.
These securities also are subject to risk of default on the underlying mortgage or asset, particularly during periods of economic downturn. Small movements in interest rates (both increases and decreases) may quickly and significantly reduce the value of certain mortgage-backed securities. TBA (or “to be announced”) commitments are forward agreements for the purchase or sale of securities, including mortgage-backed securities for a fixed price, with payment and delivery on an agreed upon future settlement date. The specific securities to be delivered are not identified at the trade date. However, delivered securities must meet specified terms, including issuer, rate and mortgage terms.
CDO Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
CDO Risk—In addition to the typical risks associated with fixed-income securities and asset-backed securities, CDOs carry additional risks including, but not limited to: (i) the possibility that distributions from collateral securities will not be adequate to make interest or other payments; (ii) the risk that the collateral may default or decline in value or be downgraded, if rated by a nationally recognized statistical rating organization; (iii) the Fund may invest in tranches of CDOs that are subordinate to other tranches; (iv) the structure and complexity of the transaction and the legal documents could lead to disputes among investors regarding the characterization of proceeds; (v) the investment return achieved by the Fund could be significantly different than those predicted by financial models; (vi) the lack of a readily available secondary market for CDOs; (vii) the risk of forced “fire sale” liquidation due to technical defaults such as coverage test failures; and (viii) the CDO’s manager may perform poorly. In addition, investments in CDOs may be characterized by the Fund as illiquid investments.
U S Government Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
U.S. Government Securities Risk—U.S. government obligations have different levels of credit support and, therefore, different degrees of credit risk. The U.S. government does not guarantee the market value of the
securities it issues, so those values may fluctuate. Like most fixed-income securities, the prices of government securities typically fall when interest rates increase and rise when interest rates decline. In addition, the payment obligations on certain securities in which the Fund may invest, including securities issued by certain U.S. Government agencies and U.S. Government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States.
Sovereign Debt Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Sovereign Debt Securities Risk—Sovereign debt instruments are subject to the risk that a governmental entity may delay or refuse to pay interest or repay principal on its sovereign debt, due, for example, to cash flow problems, insufficient foreign currency reserves, political considerations, the relative size of the governmental entity’s debt position in relation to the economy, or the failure to put in place economic reforms required by the International Monetary Fund or other multilateral agencies.
Investment Company ETF Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Investment Company/ETF Risk—An investment company, including an open- or closed‑end mutual fund or ETF, in which the Fund invests may not achieve its investment objective or execute its investment strategies
effectively, or a large purchase or redemption activity by shareholders might negatively affect the value of the shares. The Fund must also pay its pro rata portion of an investment company’s fees and expenses. Shares of ETFs trade on exchanges and may be bought and sold at market value. ETF shares may be thinly traded, making it difficult for the Fund to sell shares at a particular time or an anticipated price. ETF shares may also trade at a premium or discount to the net asset value of the ETF; at times, this premium or discount could be significant.
Private Placements Risk [Member]  
Prospectus [Line Items]  
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Private Placements Risk—Securities that are purchased in private placements are subject to restrictions on resale as a matter of contract or under federal securities laws. Because there may be relatively few potential purchasers for these investments, especially under adverse circumstances, the Fund could find it more difficult to sell private placements at an advisable time or attractive price. Additionally, such securities may not be listed on an exchange and may have no active trading market. Accordingly, many private placement securities may be illiquid. At times, it may also be more difficult to determine the fair value of such securities for purposes of computing the Fund’s net asset value.
Floating Rate Notes Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Floating-Rate Notes Risk—Floating-rate notes are subject to credit risk and interest-rate risk. The interest rate of a floating rate instrument may be based on a known lending rate, such as a bank’s prime rate, and is reset whenever such rate is adjusted. The interest rate on a variable-rate demand note is reset at specified intervals at a market rate. Some floating- and variable-rate securities may be callable by the issuer, meaning that they can be paid off before their maturity date and the proceeds may be required to be invested in lower yielding securities that reduce the Fund’s income.
Multimanager and Subadviser Selection Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Multimanager and Subadviser Selection Risk—To a significant extent, the Fund’s performance depends on Morningstar’s skill in selecting subadvisers and each subadviser’s skill in selecting securities and executing its strategy. Subadviser strategies may occasionally be out of favor and subadvisers may underperform relative to their peers or benchmarks.
Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] This Fund is designed to offer a low level of risk, but you can lose money by investing in the Fund.