v3.26.3
John Hancock Managed Account Shares Non-Investment-Grade Corporate Bond Portfolio Investment Risks - John Hancock Managed Account Shares Non-Investment-Grade Corporate Bond Portfolio
May 31, 2026
Changing Distribution Levels Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Changing distribution levels risk.  The fund may cease or reduce the level of its distribution if income or dividends paid from its investments declines.
Credit And Counterparty Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Credit and counterparty risk.  The issuer or guarantor of a fixed-income security, the counterparty to an over-the-counter derivatives contract, or a borrower of fund securities may not make timely payments or otherwise honor its obligations. A downgrade or default affecting any of the fund’s securities could affect the fund’s performance.
Economic And Market Events Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Economic and market events risk.  Events in the U.S. and global financial markets, including actions taken by the U.S. Federal Reserve or foreign central banks to stimulate or stabilize economic growth, may at times result in unusually high market volatility, which could negatively impact performance. Reduced liquidity in credit and fixed-income markets could adversely affect issuers worldwide. Banks and financial services companies could suffer losses if interest rates rise or economic conditions deteriorate.
ESG Integration Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] ESG integration risk.  The manager considers ESG factors that it deems relevant or additive, along with other material factors and analysis, when managing the fund. ESG factors may include, but are not limited to, matters regarding board diversity, climate change policies, and supply chain and human rights policies. The manager may consider these ESG factors on all or a meaningful portion of the fund’s investments. Integration of ESG factors into the fund’s investment process does not preclude the fund from including companies with low ESG characteristics or excluding companies with high ESG characteristics in the fund's investments. Incorporating ESG criteria and making investment decisions based on certain ESG characteristics, as determined by the manager, carries the risk that the fund may perform differently, including underperforming, funds that do not utilize ESG criteria, or funds that utilize different ESG criteria.
Fixed Income Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Fixed-income securities risk.  A rise in interest rates typically causes bond prices to fall. The longer the average maturity or duration of the bonds held by a fund, the more sensitive it will likely be to interest-rate fluctuations. An issuer may not make all interest payments or repay all or any of the principal borrowed. Changes in a security’s credit quality may adversely affect fund performance.
Foreign Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Foreign securities risk.  Less information may be publicly available regarding foreign issuers, including foreign government issuers. Foreign securities may be subject to foreign taxes and may be more volatile than U.S. securities. Currency fluctuations and political and economic developments may adversely impact the value of foreign securities.
Hedging Derivatives And Other Strategic Transactions Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Hedging, derivatives, and other strategic transactions risk.  Hedging, derivatives, and other strategic transactions may increase a fund’s volatility and could produce disproportionate losses, potentially more than the fund’s principal investment. Risks of these transactions are different from and possibly greater than risks of investing directly in securities and other traditional instruments. Under certain market conditions, derivatives could become harder to value or sell and may become subject to liquidity risk (i.e., the inability to enter into closing transactions). Derivatives and other strategic transactions that the fund intends to utilize include: futures contracts, credit default swaps, foreign currency forward contracts, and options. Foreign currency forward contracts, futures contracts, options, and swaps generally are subject to counterparty risk. In addition, swaps may be subject to interest-rate and settlement risk, and the risk of default of the underlying reference obligation. Derivatives associated with foreign currency transactions are subject to currency risk.
Large Shareholder Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Large shareholder risk.  A significant portion of a fund’s shares may be owned by one or more large shareholders, including investment vehicles and institutional investors. Transactions by these large shareholders may be disruptive to the management of the fund. For example, the fund may experience large redemptions and could be required to sell securities at a time when it may not otherwise desire to do so. Such transactions may increase the fund’s brokerage and/or other transaction costs, which could adversely impact fund performance. In addition, sizeable redemptions could cause the fund’s total expenses to increase. Large redemptions could also require the fund to make taxable distributions to shareholders, which may be borne disproportionately by non-redeeming shareholders.
Liquidity Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Liquidity risk.  The extent (if at all) to which a security may be sold or a derivative position closed without negatively impacting its market value may be impaired by reduced market activity or participation, legal restrictions, or other economic and market impediments. Liquidity risk may be magnified in rising interest rate environments due to higher than normal redemption rates. Widespread selling of fixed-income securities to satisfy redemptions during periods of reduced demand may adversely impact the price or salability of such securities. Periods of heavy redemption could cause the fund to sell assets at a loss or depressed value, which could negatively affect performance. Redemption risk is heightened during periods of declining or illiquid markets.
Lower Rated And High Yield Fixed Income Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Lower-rated and high-yield fixed-income securities risk.  Lower-rated and high-yield fixed-income securities (junk bonds) are subject to greater credit quality risk, risk of default, and price volatility than higher-rated fixed-income securities, may be considered speculative, and can be difficult to resell.
Master Limited Partnership Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Master limited partnership (MLP) risk.  MLPs generally reflect the risks associated with their underlying assets and with pooled investment vehicles. MLPs with credit-related holdings are subject to interest-rate risk and risk of default.
Operational And Cybersecurity Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Operational and cybersecurity risk.  Cybersecurity breaches may allow an unauthorized party to gain access to fund assets, customer data, or proprietary information, or cause a fund or its service providers to suffer data corruption or lose operational functionality. Similar incidents affecting issuers of a fund’s securities may negatively impact performance. Operational risk may arise from human error, error by third parties, communication errors, or technology failures, among other causes.
Sector Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block] Sector risk.  When a fund focuses its investments in certain sectors of the economy, its performance may be driven largely by sector performance and could fluctuate more widely than if the fund were invested more evenly across sectors.
Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] Many factors affect performance, and fund shares will fluctuate in price, meaning you could lose money.
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 other government agency.