Growth Fund Investment Risks - Growth Fund	Dec. 31, 2024
Market Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Market Risk The risk that markets will perform poorly or that the returns from the securities in which the Fund invests will underperform returns from the general securities markets or other types of investments. Markets may experience periods of high volatility and reduced liquidity in response to governmental actions or intervention, political, economic or market developments, or other external factors, such as outbreaks of infectious illnesses or other widespread public health issues, outbreaks of war or sanctions in response to military incursions and natural disasters such as floods, droughts, fires, extreme storms, earthquakes or volcanic eruptions. During those periods, the Fund may experience high levels of shareholder redemptions, and may have to sell securities at times when the Fund would otherwise not do so, and potentially at unfavorable prices. Certain securities may be difficult to value during such periods. These risks may be heightened for fixed income securities in low interest rate environments.
Equity Securities Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Equity Securities Risk Equity securities generally have greater price volatility than fixed-income securities. The market price of equity securities owned by the Fund may go up or down, sometimes rapidly or unpredictably. Equity securities may decline in value due to factors affecting the issuer, equity securities markets generally, particular industries represented in those markets or the issuer itself.
Growth Style Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Growth Style Risk The risk that returns on stocks within the growth style in which the Fund invests will trail returns of stocks representing other styles or the market overall over any period of time and may shift in and out of favor with investors generally, sometimes rapidly, depending on changes in market, economic, and other factors. Growth stocks can be volatile, as these companies usually invest a high portion of earnings in their business and therefore may lack the dividends of value stocks that can cushion stock prices in a falling market. Also, earnings disappointments often lead to sharply falling prices because investors buy growth stocks in anticipation of superior earnings growth.
Market Capitalization Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Market Capitalization Risk Investing primarily in issuers within the same market capitalization category carries the risk that the category may be out of favor due to current market conditions or investor sentiment. Securities issued by large-cap companies tend to be less volatile than securities issued by smaller companies. However, larger companies may not be able to attain the high growth rates of successful smaller companies, especially during strong economic periods, and may be unable to respond as quickly to competitive challenges.
Investing in the United States Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Investing in the United States Risk A decrease in imports or exports, changes in trade regulations, tariffs, inflation and/or an economic recession in the United States may have a material adverse effect on the U.S. economy and the securities listed on U.S. exchanges. Proposed and adopted policy and legislative changes in the United States are changing many aspects of financial, commercial, public health, environmental, and other regulation and may have a significant effect on U.S. markets generally, as well as on the value of certain securities. Governmental agencies project that the United States will continue to maintain elevated public debt levels for the foreseeable future. Although elevated debt levels do not necessarily indicate or cause economic problems, elevated public debt service costs may constrain future economic growth.The United States has developed increasingly strained relations with a number of foreign countries. If relations with certain countries deteriorate, it could adversely affect U.S. issuers as well as non-U.S. issuers that rely on the United States for trade. The United States has also experienced increased internal political instability. If these trends were to continue, it may have an adverse impact on the U.S. economy and the issuers in which the Fund invests.
Foreign Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Foreign Risk Foreign securities are subject to political, regulatory, and economic risks not present in domestic investments and may exhibit more extreme changes in value than securities of U.S. companies. The securities markets of many foreign countries are relatively small, with a limited number of companies representing a small number of industries. In addition, foreign companies often are not subject to the same degree of regulation as U.S. companies. Reporting, legal, accounting and auditing standards of foreign countries differ, in some cases significantly, from U.S. standards. Nationalization, expropriation or confiscatory taxation, currency blockage, political changes or diplomatic developments could adversely affect the Fund’s investments in a foreign country. In the event of nationalization, expropriation or other confiscation, the Fund could lose its entire investment. Investments in emerging market countries are likely to involve significant risks. These countries are generally more likely to experience political and economic instability.
Focused Investment Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Focused Investment Risk A fund that invests a substantial portion of its assets in a particular market, industry, sector, group of industries or sectors, country, region, group of countries or asset class is subject to greater risk than a fund that invests in a more diverse investment portfolio. In addition, the value of such a fund is more susceptible to any single economic, market, political or regulatory or other occurrence affecting, for example, the particular markets, industries, regions, sectors or asset classes in which the fund is invested. This is because, for example, issuers in a particular market, industry, region, sector or asset class may react similarly to specific economic, market, regulatory, political or other developments. The particular markets, industries, regions, sectors or asset classes in which the Fund may focus its investments may change over time and the Fund may alter its focus at inopportune times. For example, the Fund may have a significant portion of its assets invested in securities of companies in the information technology sector. Companies in the information technology sector can be adversely affected by, among other things, intense competition, earnings disappointments, and rapid obsolescence of products and services due to technological innovations or changing consumer preferences.
Issuer Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Issuer Risk The risk that the value of a security may decline because of adverse events or circumstances that directly relate to the issuer.
Manager Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Manager Risk  The risk that the subadviser's decisions, including security selection, will cause the Fund to underperform relative to the Fund’s peers. There can be no assurance that the subadviser’s investment techniques and decisions will produce the desired results. The Fund’s ability to achieve its investment objective is dependent upon the subadviser’s ability to identify profitable investment opportunities for the Fund. The past experience of the portfolio manager(s), including with other strategies and funds, does not guarantee future results for the Fund.
Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	As with all investments, you may lose money by investing in the Fund.