v3.26.3
Legacy Class [Member] Investment Risks - Legacy Class - MERIDIAN CONTRARIAN FUND
Jun. 30, 2026
Small and Medium Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Small and Medium Company Risk — Generally, the smaller the capitalization of a company, the greater the risk associated with an investment in the company. The stock prices of small- and mid‑capitalization and newer companies tend to fluctuate more than those of larger capitalized and/or more established companies and generally have a smaller market for their shares than do large capitalization companies.
Large Company Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Large Company Risk — Larger, more established companies may be unable to respond quickly to new competitive challenges such as changes in consumer tastes or innovative smaller competitors. Also, large‑cap companies are sometimes unable to attain the high growth rates of successful, smaller companies, especially during extended periods of economic expansion.
Investment Strategy Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Investment Strategy Risk — The Investment Adviser uses the Fund’s principal investment strategies and other investment strategies to seek to achieve the Fund’s investment objective of long-term growth of capital. There is no assurance that the Investment Adviser’s investment strategies or securities selection method will achieve that investment objective.
Market Risks [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Market Risk — The value of the Fund’s investments will fluctuate in response to the activities of individual companies and general stock market and economic conditions. As a result, the value of your investment in the Fund may be more or less than your purchase price.
Securities Lending Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Securities Lending Risk — The Fund may engage in securities lending. Securities lending involves the risk that the Fund may lose money because the borrower of the loaned securities fails to return the securities in a timely manner or at all. The Fund could also lose money in the event of a decline in the value of collateral provided for loaned securities or a decline in the value of any investments made with cash collateral. These events could also trigger adverse tax consequences for the Fund.
Sector Concentration Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Sector Concentration Risk — The Fund may concentrate its investments in companies that are in a single sector or related sector. Concentrating investments in a single sector may make the Fund more susceptible to adverse economic, business, regulatory or other developments affecting that sector. If an economic downturn occurs in a sector in which the Fund’s investments are concentrated, the Fund may perform poorly during that period.
Value Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Value Securities Risk — The market value of a value security may take longer than anticipated to rise, may decline or may fail to meet the Investment Adviser’s assessment of its potential value. In addition, value securities, at times, may not perform as well as growth securities or the stock market in general, and may be out of favor with investors for varying periods of time.
Foreign Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Foreign Securities Risk — Investments in foreign securities, including securities of companies located in emerging markets, may be subject to more risks than those associated with U.S. investments, including currency fluctuations, political and economic instability and differences in accounting, auditing and financial reporting standards. Foreign securities may be less liquid than domestic securities so that the Fund may, at times, be unable to sell foreign securities at desirable times or prices. In addition, emerging market securities involve greater risk and more volatility than those of companies in more developed markets. Significant levels of foreign taxes are also a risk related to foreign investments.
Debt Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Debt Securities Risk — Debt securities are subject to credit risk, interest rate risk and liquidity risk. Credit risk is the risk that the entity that issued a debt security may become unable to make payments of principal and interest when due and includes the risk of default. Interest rate risk is the risk of losses due to changes in interest rates. Liquidity risk is the risk that the Fund may not be able to sell portfolio securities because there are too few buyers for them.
High Yield Bond Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
High Yield Bond Risk — Debt securities that are rated below investment grade (commonly referred to as “junk bonds”) involve a greater risk of default or price declines than investment grade securities. The market for high-yield, lower rated securities may be smaller and less active, causing market price volatility and limited liquidity in the secondary market. This may limit the ability of a Fund to sell these securities at their fair market values either to meet redemption requests, or in response to changes in the economy or the financial markets.
Equity Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]
Equity Securities Risk — Equity securities fluctuate in price and value in response to many factors including historical and prospective earnings of the issuer and its financial condition, the value of its assets, general economic conditions, interest rates, investors’ perceptions, market liquidity, natural disasters and the spread of infectious disease or other public health issues.
Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund may lose money
Risk Not Insured Depository Institution [Member]  
Prospectus [Line Items]  
Risk [Text Block] is not a deposit of a bank or insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.