This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and Example below. Additional fees and expenses will be applied at the variable contract level. Those fees and expenses are described in your variable contract prospectus. If the information below were to reflect the deduction of variable contract charges, fees and expenses would be higher.

Operating Expenses Caption [Text]

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Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading]

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Portfolio Turnover

Portfolio Turnover [Text Block]

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The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs. These costs, which are not reflected in the annual fund operating expenses or in the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 51% of the average value of its portfolio.

Portfolio Turnover, Rate

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51.00%

Expense Example [Heading]

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Example

Expense Example Narrative [Text Block]

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This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example does not reflect expenses and charges which are, or may be, imposed under your variable contract. If the examples were to reflect the deduction of such charges, the costs shown would be greater. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem or hold all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs and returns might be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

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Principal Investment Strategy

Strategy Narrative [Text Block]

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The Fund normally invests at least 50% of its total assets in stocks of established U.S. companies that it believes have above-average potential for capital growth. The Fund’s investments in stocks are primarily those issued by large capitalization companies, and stocks typically constitute at least half of total assets. The remaining assets are generally invested in other securities, such as convertibles, corporate and government debt securities (including mortgage- and asset-backed securities), high yield securities (commonly known as “junk bonds”), bank loans and foreign securities, in keeping with the Fund’s objective. The Fund’s investments in stocks generally fall into one of two categories. The larger category comprises long-term core holdings that the Sub‑Adviser considers to be underpriced in terms of company assets, earnings, or other factors at the time they are purchased. The smaller category comprises opportunistic investments whose prices the Sub‑Adviser expects to rise in the short term, but not necessarily over the long term. There are no limits on the market capitalization of issuers of the stocks in which the Fund invests. Since the Sub‑Adviser attempts to prevent losses as well as achieve gains, it typically uses a “value approach” in selecting investments. Its in‑house research team seeks to

identify companies that seem under-valued by various measures, such as price/book value, and may be temporarily out of favor but have good prospects for capital appreciation. The Sub‑Adviser may establish relatively large positions in companies it finds particularly attractive. The Fund may also, to a limited extent, invest in options and could write (i.e., sell) call options, primarily in an effort to protect against downside risk or to generate additional income. While the Fund’s sector and industry exposure is expected to vary over time, as of February 28, 2022, the Fund had significant exposure to the Health Care Sector and Information Technology Sector as each sector is defined by the Global Industry Classification Standard.

The Sub‑Adviser works as hard to reduce risk as to maximize gains and may realize gains rather than lose them in market declines. In addition, the Sub‑Adviser searches for attractive risk/reward values among all types of securities. The portion of the Fund invested in a particular type of security, such as common stocks, results largely from case‑by‑case investment decisions, and the size of the Fund’s cash reserve may reflect the Sub‑Adviser’s ability to find companies that meet valuation criteria rather than its market outlook. Bonds, bank loans and convertible securities may be purchased to gain additional exposure to a company or for their income or other features. Maturity and quality are not necessarily major considerations. There are no specified limits on the maturities or credit ratings of the debt instruments in which the Fund invests. The Fund may invest up to 30% of its total assets in below-investment grade securities (BB and lower, or an equivalent rating). If a security is split rated (i.e., rated investment grade by at least one rating agency and non‑investment grade by another rating agency), the higher rating will be used for purposes of measuring this 30% limit. There is no limit on the Fund’s investments in convertible securities. The Fund may sell securities for a variety of reasons, such as to secure gains, limit losses, or redeploy assets into more promising opportunities.

Risk [Heading]

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Principal Risks of Investing

Risk Narrative [Text Block]

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As with all mutual funds, an investor is subject to the risk that his or her investment could lose money. In addition to this risk, the Fund is subject to the principal risks described below.

Equity Securities Risk. In general, prices of equity securities are more volatile than those of fixed income securities. The prices of equity securities fluctuate, and sometimes widely fluctuate, in response to activities specific to the issuer of the security as well as factors unrelated to the fundamental condition of the issuer, including general market, economic and political conditions.

Market Risk. The possibility that the values of, and/or the income generated by, securities held by the Fund may decline, sometimes unpredictably, due to general market conditions or other factors, including those directly involving the issuers of such securities. Security markets are volatile and may decline significantly in response to adverse issuer, regulatory, political, or economic developments. Different sectors of the market and different security types may react differently to such developments.

“Value” Investing Risk. The possibility that the Fund’s investments in securities believed by the Sub‑Adviser to be undervalued may not realize their perceived value for extended periods of time or may never realize their perceived value. The securities in which the Fund invests may respond differently to market and other developments than other types of securities, and may underperform growth stocks and/or the market as a whole, particularly if the Fund’s investment style shifts out of favor.

Fixed Income Securities Risk. The possibility that the market value of a fixed-income security may decline due to general market conditions that are not specifically related to a particular company, such as real or perceived adverse economic conditions, changes in the outlook for corporate earnings, changes in interest or currency rates or adverse investor sentiment generally. Fixed income securities markets may, in response to governmental intervention, economic or market developments (including potentially a reduction in the number of broker-dealers willing to engage in market-making activity), or other factors, experience periods of increased, and sometimes unpredictable, volatility and reduced liquidity. During those periods, the Fund may experience increased levels of shareholder redemptions, and may have to sell securities at inopportune times, and at unfavorable prices. Fixed income securities also may be difficult to value during such periods. Changes in government or central bank policy, including changes in tax policy or changes in a central bank’s implementation of specific policy goals, may have a substantial impact on interest rates, and could have a material adverse effect

on prices for fixed income securities and on the management of the Fund. There can be no guarantee that any particular government or central bank policy will be continued, discontinued or changed, nor that any such policy will have the desired effect on interest rates.

Credit Risk. The possibility that an issuer of a debt security, or the counterparty to a derivatives contract, held by the Fund defaults on its payment obligations.

Interest Rate Risk. The possibility that the prices of the Fund’s fixed income investments will decline due to rising interest rates.

LIBOR Risk. The risk that the transition away from the London Interbank Offered Rate (“LIBOR”) may lead to increased volatility and illiquidity in markets that are tied to LIBOR. LIBOR is a benchmark interest rate that is used extensively as a “reference rate” for financial instruments, including many corporate bonds, asset-backed securities, and bank loans. In July 2017, the head of the United Kingdom Financial Conduct Authority, the agency that oversees LIBOR, announced that after 2021 it would cease its active encouragement of banks to provide the quotations needed to sustain LIBOR. In November 2020, the administrator of LIBOR announced its intention to delay the phase out of the majority of the USD LIBOR publications until June 30, 2023, with the remainder of LIBOR publications having ceased on December 31, 2021. The transition away from LIBOR poses a number of other risks, including changed values of LIBOR-related investments and reduced effectiveness of hedging strategies, each of which may adversely affect the Fund’s performance.

Convertible Securities Risk. The possibility that the value of the Fund’s investments in convertible securities may be adversely affected by changes in interest rates, the credit of the issuer and the value of the underlying common stock. The market values of convertible securities tend to decline as interest rates increase and, conversely, to increase as interest rates decline. In addition, as the market price of the underlying common stock declines below the conversion price, the price of the convertible security tends to be increasingly influenced by the yield of the convertible security.

Sector Risk. The possibility that the Fund may invest a substantial portion of its assets within one or more economic sectors or industries, which may change from time to time. At times, the Fund may have a significant portion of its assets invested in securities of companies conducting business in a broadly related group of industries within an economic sector. Companies in the same economic sector may be similarly affected by economic or market events, making the Fund more vulnerable to unfavorable developments in that economic sector, including adverse market conditions, legislative or regulatory changes, and/or increased competition affecting that sector, than funds that invest more broadly. While the Fund’s sector and industry exposure is expected to vary over time, as of February 28, 2022, the Fund had significant exposure to the Information Technology Sector and Health Care Sector. In addition to these general risks, the sectors specified are also subject to the risks described below.

Information Technology Sector Risk. The Information Technology Sector includes companies that offer software and information technology services, manufacturers and distributors of technology hardware and equipment such as communications equipment, cellular phones, computers and peripherals, electronic equipment and related instruments and semiconductors. The prices of the securities of companies operating in the Information Technology Sector are closely tied to market competition, increased sensitivity to short product cycles and aggressive pricing, and problems with bringing products to market.

Health Care Sector Risk. The Health Care Sector includes health care providers and services, companies that manufacture and distribute health care equipment and supplies, and health care technology companies. It also includes companies involved in the research, development, production and marketing of pharmaceuticals and biotechnology products. The prices of the securities of companies operating in the Health Care Sector are closely tied to government regulation and approval of their products and services, which can have a significant effect on the price and availability of those products and services.

Bank Loans Risk. The possibility that, to the extent the Fund invests in bank loans, it is exposed to additional risks beyond those associated with traditional debt securities, including liquidity risk, prepayment risk, extension

risk, the risk of subordination to other creditors, restrictions on resale, and the lack of a regular trading market and publicly available information. In addition, liquidity risk may be more pronounced for a portfolio investing in loans because certain loans may have a more limited secondary market. These loans may be difficult to value, which may result in a loss. In addition, bank loans generally are subject to extended settlement periods in excess of seven days, which may impair the Fund’s ability to sell or realize the full value of its loans in the event of a need to liquidate such loans. Purchases and sales of loans in the secondary market generally are subject to contractual restrictions that may delay the Fund’s ability to make timely redemptions. Bank loans may not be considered securities and, therefore, the Fund may not have the protections of the federal securities laws with respect to its holdings of such loans.

Derivatives Risk. The possibility that the Fund’s use of derivatives, such as futures, options and swap agreements, may lead to losses, including those magnified by leverage, particularly when derivatives are used to enhance return rather than mitigate risk. Certain derivative instruments may be difficult to sell when the Sub‑Adviser believes it would be appropriate to do so, difficult to value if the instrument becomes illiquid, or the other party to a derivative contract may be unwilling or unable to fulfill its contractual obligations.

High Yield Bond Risk. The possibility that the Fund’s investment in debt securities rated below investment grade (commonly known as junk bonds) may adversely affect the Fund’s yield. Although these securities generally provide for higher yields than higher rated debt securities, the high degree of risk associated with these investments can result in substantial or total loss to the Fund. High yield securities are considered speculative and are subject to a greater risk of loss, greater sensitivity to interest rate changes, increased price volatility, valuation difficulties, and a potential lack of a liquid secondary or public market for the securities.

Large‑Cap Securities Risk. The possibility that the Fund’s investments in larger companies may underperform relative to those of smaller companies. Larger more established companies may be unable to respond quickly to new competitive challenges such as changes in technology and consumer tastes and may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion.

Small- and Mid‑Cap Securities Risk. The possibility that the Fund’s investments in small- and mid‑cap securities may be subject to greater risk and higher volatility than are customarily associated with investing in larger more established companies. Securities issued by small- and mid‑sized companies, which can include start‑up companies, tend to be more vulnerable than larger and more established companies to adverse business and economic developments. Such companies generally have narrower product lines, more limited financial resources and more limited markets for their stock as compared with larger companies. As a result, the value of such securities also may be more volatile than the securities of larger companies, and the Fund’s portfolio may experience difficulty in purchasing or selling such securities at the desired time and price or in the desired amount.

Foreign Investment Risk. The possibility that the Fund’s investments in foreign securities may be adversely affected by political, social, and economic conditions affecting foreign issuers or decreases in foreign currency values relative to the U.S. dollar. Investments in foreign markets may be subject to greater market volatility, decreased market liquidity, and higher transaction and custody costs. Foreign issuers also may be subject to less government and exchange regulation and there may be less reliable financial information available for such issuers and their securities.

Management Risk. The possibility that the investment decisions, techniques, analyses or models implemented by the Fund’s Sub‑Adviser in seeking to achieve the Fund’s investment objective may not produce the returns expected, may cause the Fund’s shares to lose value or may cause the Fund to underperform relevant benchmarks or other funds with similar investment objectives.

Cybersecurity Risk. The possibility that the Fund could be harmed by intentional cyberattacks and other cybersecurity breaches, including unauthorized access to the Fund’s assets, customer data and confidential shareholder information, or other proprietary information. In addition, a cybersecurity breach could cause one

of the Fund’s service providers or financial intermediaries to suffer unauthorized data access, data corruption, or loss of operational functionality.

Mortgage- and Asset-Backed Securities Risk. The possibility that the Fund’s investments in mortgage- and asset-backed securities may decline in value and become less liquid when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of rising interest rates. Rising interest rates tend to extend the duration of these securities, making them more sensitive to changes in interest rates than instruments with fixed payment schedules. When interest rates decline or are low, the prepayment of mortgages or assets underlying such securities may reduce the Fund’s returns.

Corporate Debt Securities Risk. The possibility that the issuer of a debt security held by the Fund is unable to meet its principal and interest payment obligations. The further possibility that corporate debt securities held by the Fund may experience increased price volatility due to such factors as market interest rates, market perception of the creditworthiness of the issuer and general market liquidity.

Prepayment and Extension Risk. The possibility that the principal on a fixed income security may be paid off earlier or later than expected causing the Fund to invest in fixed income securities with lower interest rates, which may adversely affect the Fund’s performance.

Liquidity Risk. The possibility that the market for certain of the Fund’s investments may become illiquid under adverse or volatile market or economic conditions, making those investments difficult to sell at an advantageous price, particularly in times of market turmoil. The market price of certain investments may fall dramatically if there is no liquid trading market for the investments. Illiquid securities may also be more difficult to value. If the Fund is forced to sell an illiquid security to fund redemptions or for other cash needs, it may be forced to sell the security at a loss.

Currency Risk. The possibility that the value of the Fund’s assets may be affected favorably or unfavorably by currency exchange rates, currency exchange control regulations, and restrictions or prohibitions on the repatriation of foreign currencies.

U.S. Government Securities Risk. The possibility that the U.S. government will not provide financial assistance in support of securities issued by certain of its agencies and instrumentalities and held by the Fund if it is not obligated to do because such securities are not issued or guaranteed by the U.S. Treasury. A default by a U.S. government agency or instrumentality could cause the Fund’s share price or yield to fall.

An investment in the Fund may be appropriate for investors who are seeking a relatively conservative approach to investing for total return and are willing to accept the risks and uncertainties of investing in common stocks and bonds.

Risk Lose Money [Text]

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As with all mutual funds, an investor is subject to the risk that his or her investment could lose money.

Bar Chart and Performance Table [Heading]

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Performance Information

Performance Narrative [Text Block]

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The bar chart and table below show the performance of the Fund both year‑by‑year and as an average over different periods of time. Since March 7, 2022, T. Rowe Price Associates, Inc., sub‑adviser to the Fund, has delegated the day‑to‑day portfolio management of the Fund to its affiliate, T. Rowe Price Investment Management, Inc. The delegation did not result in a change to the Fund’s principal investment strategy or its portfolio managers. The performance and average annual total returns shown for periods prior to March 7, 2022 may have differed had T. Rowe Price Investment Management, Inc. been responsible for the day‑to‑day portfolio management during those periods. The bar chart and table demonstrate the variability of performance over time and provide an indication of the risks and volatility of an investment in the Fund by showing how the Fund’s average annual total returns for various periods compare with those of a broad-based securities market index. Past performance does not necessarily indicate how the Fund will perform in the future. This performance information does not include the impact of any charges deducted under your variable contract. If it did, returns would be lower.

Performance Information Illustrates Variability of Returns [Text]

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The bar chart and table demonstrate the variability of performance over time and provide an indication of the risks and volatility of an investment in the Fund by showing how the Fund’s average annual total returns for various periods compare with those of a broad-based securities market index.

Performance Past Does Not Indicate Future [Text]

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Past performance does not necessarily indicate how the Fund will perform in the future.

Bar Chart Does Not Reflect Sales Loads [Text]

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This performance information does not include the impact of any charges deducted under your variable contract. If it did, returns would be lower.

Bar Chart Closing [Text Block]

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