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Label Element Value
Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk/Return [Heading] oef_RiskReturnHeading Global Atlantic Moderately Aggressive Managed Risk Portfolio
Objective [Heading] oef_ObjectiveHeading Investment Objectives:
Objective, Primary [Text Block] oef_ObjectivePrimaryTextBlock

The Portfolio seeks to provide capital appreciation and income while seeking to manage volatility.

Expense Heading [Optional Text] oef_ExpenseHeading Fees and Expenses of the Portfolio:
Expense Narrative [Text Block] oef_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Portfolio. The table and the example do not include any fees or sales charges imposed by your variable annuity contract. If they were included, your costs would be higher. Please refer to your variable annuity prospectus for information on the separate account fees and expenses associated with your contract.

Shareholder Fees Caption [Optional Text] oef_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Optional Text] oef_OperatingExpensesCaption Annual Portfolio Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination oef_FeeWaiverOrReimbursementOverAssetsDateOfTermination May 01, 2027
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] oef_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees Acquired Fund Fees and Expenses are the indirect cost of investing in other investment companies, the costs of which will not be included in the Portfolio's financial statements. The operating expenses in this fee table will not correlate to the expense ratio in the Portfolio's financial highlights because the financial statements include only the direct operating expenses incurred by the Portfolio.
Expense Example [Heading] oef_ExpenseExampleHeading Example:
Expense Example Narrative [Text Block] oef_ExpenseExampleNarrativeTextBlock

This Example is intended to help you compare the cost of investing in the Portfolio with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated and then redeem all of your shares at the end of those periods. You would pay the same expenses if you did not redeem your shares. However, each variable annuity contract and separate account involves fees and expenses that are not included in the Example. If these fees and expenses were included in the Example, your overall expenses would be higher. The Example also assumes that your investment has a 5% return each year and that the Portfolio's operating expenses remain the same

(except that the Example reflects any applicable contractual fee waivers/expense reimbursement arrangements for only the first year). Although your actual costs may be higher or lower, based upon these assumptions your costs would be:

Portfolio Turnover [Heading] oef_PortfolioTurnoverHeading Portfolio Turnover:
Portfolio Turnover [Text Block] oef_PortfolioTurnoverTextBlock

The Portfolio pays transaction costs, such as commissions, when it buys and sells securities or instruments (or "turns over" its portfolio). These costs, which are not reflected in annual portfolio operating expenses or in the Example, affect the Portfolio's performance. A higher portfolio turnover rate may indicate higher transaction costs. During the most recent fiscal year ended December 31, 2025, the Portfolio's portfolio turnover rate was 32% of the average value of its portfolio.

Portfolio Turnover, Rate oef_PortfolioTurnoverRate 32.00%
Strategy [Heading] oef_StrategyHeading Principal Investment Strategies:
Strategy Narrative [Text Block] oef_StrategyNarrativeTextBlock

The Adviser allocates a portion of the Portfolio to a capital appreciation and income component (the "Capital Appreciation and Income Component") managed by BlackRock Investment Management, LLC ("BlackRock" or a "Sub-Adviser") and a portion to a managed risk component (the "Managed Risk Component") managed by Milliman Financial Risk Management LLC ("Milliman" or a "Sub-Adviser"). BlackRock manages the Capital Appreciation and Income Component pursuant to a strategy that seeks to invest in a combination of iShares Exchange Traded Funds ("ETFs") that are affiliated with BlackRock and are offered through different prospectuses. The Portfolio intends its strategy of providing exposure to a combination of ETFs to result in investment diversification that an investor could otherwise achieve only by holding numerous individual investments. Milliman manages the Managed Risk Component pursuant to a strategy that seeks to manage portfolio volatility and provide downside risk management.

The Adviser seeks to achieve the Portfolio's investment objective by allocating, under normal circumstances, at least 80% of the Portfolio's net assets, plus any borrowings for investment purposes, to the Capital Appreciation and Income Component and up to 20% of the Portfolio's net assets to the Managed Risk Component. BlackRock expects to further allocate approximately 85% of the Capital Appreciation and Income Component assets to equity-based ETFs, and approximately 15% to fixed-income-based ETFs, although BlackRock may modify the target allocation from time to time. The Portfolio incorporates a global tactical asset allocation strategy that, under normal circumstances, seeks to adjust allocations to asset classes that BlackRock deems to be attractive investments over the short to intermediate term. This strategy seeks to enhance the total return and manages portfolio risk at the aggregate level. Modifications in the allocations to the ETFs are based on techniques that may include technical, qualitative, quantitative and momentum analysis of the market. The mix of ETFs will vary with market conditions and BlackRock's assessment of the ETFs' relative attractiveness as investment opportunities.

The ETFs' investments will focus on investments in securities listed on domestic and foreign equity exchanges with growth and value styles, including, small-, mid- and large-cap issuers, and on investments in domestic and foreign fixed-income instruments including U.S. treasuries, mortgage- and asset-backed securities, corporate loans, distressed securities, inflation-indexed instruments, corporate bonds, sovereign and emerging market debt. An ETF may invest a large percentage of its assets in indices located in a single country, a small number of countries, or a particular geographic region. As a result of its exposure to the ETFs, the Portfolio indirectly provides exposure principally to U.S. and non-U.S. equity and fixed-income securities and derivatives. In addition, the ETFs may invest in debt assets in lower quality debt securities (rated Ba1 or below and BB+ or below by Nationally Recognized Statistical Rating Organizations designated by the ETFs' adviser or unrated but determined to be of equivalent quality by the ETFs' adviser). Such securities are sometimes referred to as "junk bonds." An ETF may integrate environmental, social and governance ("ESG") factors into its investment selection process and/or screen out particular companies and industries based on certain ESG related criteria. An ETF may also seek to deliver exposure to certain style factors (i.e., quality, value, momentum, size, minimum volatility).

In the Managed Risk Component, the Adviser seeks to manage return volatility by employing Milliman to execute a managed risk strategy, which consists of using hedge instruments to reduce the downside risk of the Portfolio's securities. Milliman may use hedge instruments to accomplish this goal, which may include: equity futures contracts, treasury futures contracts, currency futures contracts, and other hedge instruments judged by Milliman to be necessary to achieve the goals of the managed risk strategy. Milliman may also buy or sell hedge instruments based on one or more market indices in an attempt to maintain the Portfolio's volatility at the targeted level in an environment in which Milliman expects market volatility to decrease or increase, respectively. Milliman selects individual hedge instruments that it believes will have prices that are highly correlated to the Portfolio's positions. Milliman adjusts hedge instruments to manage overall net Portfolio risk exposure, in an attempt to stabilize the volatility of the Portfolio around a predetermined target level

and reduce the potential for portfolio losses during periods of significant and sustained market decline. Milliman seeks to monitor and forecast volatility in the markets using a proprietary model, and adjust the Portfolio's hedge instruments accordingly. In addition, Milliman will monitor liquidity levels of relevant hedge instruments and transparency provided by exchanges or counterparties in hedging transactions. Milliman adjusts futures positions to manage overall net Portfolio risk exposure. Milliman may, during periods of rising security prices, implement strategies to preserve gains on the Portfolio's positions. Milliman may, during periods of falling security prices, implement additional strategies to reduce losses in adverse market conditions. In these situations, Milliman's activity could significantly reduce the Portfolio's net economic exposure to equity securities. Following market declines, a downside rebalancing strategy will be used to decrease the amount of hedge instruments used to hedge the Portfolio. Milliman also adjusts hedge instruments to realign individual hedges when the Adviser rebalances the Portfolio's asset allocation profile.

Depending on market conditions, scenarios may occur where the Portfolio has no positions in any hedge instruments.

Strategy Portfolio Concentration [Text] oef_StrategyPortfolioConcentration The Adviser seeks to achieve the Portfolio's investment objective by allocating, under normal circumstances, at least 80% of the Portfolio's net assets, plus any borrowings for investment purposes, to the Capital Appreciation and Income Component and up to 20% of the Portfolio's net assets to the Managed Risk Component
Bar Chart and Performance Table [Heading] oef_BarChartAndPerformanceTableHeading Performance:
Performance Narrative [Text Block] oef_PerformanceNarrativeTextBlock

The bar chart and performance table below show the variability of the Portfolio's returns, which is some indication of the risks of investing in the Portfolio. The bar chart shows performance of the Portfolio's Class II shares for each full calendar year since the Portfolio's inception and the table shows how the average annual total returns of the Portfolio's Class II shares compared with the returns of two indexes. The S&P Global Managed Risk LargeMidCap Index – Moderate Aggressive serves as the Portfolio's performance index because the Adviser believes it is more representative of the Portfolio's investment strategy. The S&P 500®​ Index serves as the Portfolio's regulatory index and provides a broad measure of market performance. The performance in the bar chart and the table does not include the effect of variable contract charges. If variable contract charges had been included, performance would have been lower. You should be aware that the Portfolio's past performance may not be an indication of how the Portfolio will perform in the future. Prior to October 1, 2016, the Capital Appreciation and Income Component of the Portfolio was managed by the Adviser without the use of a sub-adviser. The performance prior to that date is attributable to the Adviser's asset allocation decisions. In addition, the sub-adviser to the Capital Appreciation and Income Component of the Portfolio changed from BlackRock Financial Management, Inc. to BlackRock, effective May 1, 2021. No changes were made to the Portfolio's principal investment strategies or to the portfolio management team as a result of the change in sub-adviser.

Performance Information Illustrates Variability of Returns [Text] oef_PerformanceInformationIllustratesVariabilityOfReturns The bar chart and performance table below show the variability of the Portfolio's returns, which is some indication of the risks of investing in the Portfolio.
Performance Past Does Not Indicate Future [Text] oef_PerformancePastDoesNotIndicateFuture You should be aware that the Portfolio's past performance may not be an indication of how the Portfolio will perform in the future.
Bar Chart [Heading] oef_BarChartHeading Class II Annual Total Return by Calendar Year
Bar Chart Closing [Text Block] oef_BarChartClosingTextBlock

Highest Quarter

 

4th Quarter 2023

 

9.00%

 

Lowest Quarter

 

4th Quarter 2018

 

-10.11%

 
Highest Quarterly Return, Label [Optional Text] oef_HighestQuarterlyReturnLabel Highest Quarter
Highest Quarterly Return, Date oef_BarChartHighestQuarterlyReturnDate Dec. 31, 2023
Highest Quarterly Return oef_BarChartHighestQuarterlyReturn 9.00%
Lowest Quarterly Return, Label [Optional Text] oef_LowestQuarterlyReturnLabel Lowest Quarter
Lowest Quarterly Return, Date oef_BarChartLowestQuarterlyReturnDate Dec. 31, 2018
Lowest Quarterly Return oef_BarChartLowestQuarterlyReturn (10.11%)
Index No Deduction for Fees, Expenses, or Taxes [Text] oef_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
Average Annual Return, Caption [Optional Text] oef_AverageAnnualReturnCaption Performance Table Average Annual Total Returns (For periods ended December 31, 2025)
Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Risk Lose Money [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock As with all mutual funds, there is the risk that you could lose money through your investment in the Portfolio.
Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Affiliated Underlying Fund Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Affiliated Underlying Fund Risk: The Portfolio invests in Underlying Funds that are affiliated with a Sub-Adviser. The Sub-Adviser is subject to conflicts of interest when allocating Portfolio assets among the various Underlying Funds both because the fees payable to it and/or its affiliates by some Underlying Funds are higher than the fees payable by other Underlying Funds and because the Sub-Adviser and its affiliates are also responsible for managing the Underlying Funds.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Asset Allocation Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Asset Allocation Risk: The Portfolio's percentage allocations among its investments could cause the Portfolio to underperform relative to relevant benchmarks and other mutual funds with similar investment objectives.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Conflicts of Interest Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Conflicts of Interest Risk: The Portfolio's strategy is designed to reduce the Portfolio's return volatility and manage downside exposure during periods of significant market declines but may not work as intended. The Portfolio's strategy may also reduce the risks assumed by the insurance company that sponsors your variable annuity contract. This facilitates the insurance company's ability to provide certain guaranteed benefits but may result in periods of underperformance, reduce a contract holder's ability to fully participate in rising markets and may increase transaction costs at the Portfolio and/or Underlying Fund level. Although the interests of contract holders and the insurance company are generally aligned, the insurance company (and the Adviser due to its affiliation with the insurance company) may face potential conflicts of interest. Specifically, the Portfolio's strategy may have the effect of mitigating the financial risks to the insurance company when providing certain guaranteed benefits.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Corporate Loans Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Corporate Loans Risk: The value of corporate loan investments is generally less exposed to the adverse effects of shifts in market interest rates than investments that pay a fixed rate of interest. The market for corporate loans may be subject to irregular trading activity, wide bid/ask spreads and extended trade settlement periods (which may exceed seven days). As a result, the proceeds from the sale of corporate loans may not be readily available to make additional investments or to meet an Underlying Fund's redemption obligations, meaning that the Underlying Fund may have to sell other investments or take other actions if necessary to raise cash to meet its obligations.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Derivatives Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Derivatives Risk: The use of derivatives may increase costs, reduce the Portfolio's returns and/or increase volatility. The use of derivatives may also result in leverage, which can magnify the effects of changes in the value of investments, make such investments more volatile and expose the Portfolio to losses that exceed the initial amount invested. Many types of derivatives are also subject to the risk that the other party in the transaction will not fulfill its contractual obligation. Derivatives are subject to risks arising from margin requirements. In addition, the fluctuations in the values of derivatives may not correlate perfectly with, and may be more sensitive to market events than, the overall securities markets. The possible lack of a liquid secondary market for derivatives and the resulting inability to sell or otherwise close-out a derivatives position at an advantageous time or price could expose the Portfolio to losses and could make derivatives more difficult to value accurately. Derivative investments are further subject to regulatory risks, from both U.S. and foreign regulators that may impact the availability, liquidity and costs associated with such investments and potentially limit the ability of mutual funds to invest in derivatives.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Distressed Securities Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Distressed Securities Risk: Distressed securities are speculative and involve substantial risks in addition to the risks of investing in junk bonds. An Underlying Fund will generally not receive interest payments on the distressed securities and may incur costs to protect its investment. In addition, distressed securities involve the substantial risk

that principal will not be repaid. In any reorganization or liquidation proceeding relating to a portfolio company, an Underlying Fund may lose its entire investment or may be required to accept cash or securities with a value less than its original investment. Distressed securities and any securities received in an exchange for such securities may be subject to restrictions on resale.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Emerging Markets Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Emerging Markets Risk: Emerging markets are riskier than more developed markets because they tend to develop unevenly and may never fully develop. Investments in emerging markets may be considered speculative. Emerging markets are more likely to experience hyperinflation and currency devaluations, which adversely affect returns to U.S. investors. In addition, many emerging securities markets have far lower trading volumes and less liquidity than developed markets.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Equity Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Equity Risk: Common and preferred stock prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | ESG Investing Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

ESG Investing Risk: The Portfolio may invest a portion of its assets in Underlying Funds that integrate ESG in their investment selection process and/or screen out particular companies and industries based on certain ESG related criteria. An Underlying Fund may forgo certain investment opportunities, which may affect the Portfolio's exposure to certain companies or industries. An Underlying Fund's results may be lower than other funds that do not seek to invest in companies based on ESG ratings and/or screen out certain companies or industries. An Underlying Fund may invest in companies that do not reflect the beliefs and values of any particular investor.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | ETF Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

ETF Risk: Investments in underlying ETFs typically present the same risks as investments in conventional Underlying Funds. In addition, disruptions to the creations and redemptions process through which market makers directly purchase and sell ETF shares, the existence of extreme market volatility or potential lack of an active trading market, or changes in the liquidity of the market for an ETF's underlying portfolio holdings, may result in the ETF's shares trading at significantly above (at a premium to) or below (at a discount to) net asset value, which may result in a Portfolio paying significantly more or receiving significantly less for ETF shares than the value of the relevant ETF's underlying holdings. Because the value of ETF shares depends on the demand in the market, the Portfolio may not be able to liquidate its holdings at the most optimal time, adversely affecting performance.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Fixed Income Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Fixed Income Risk: The value of bonds and other fixed-income securities will fluctuate with changes in interest rates. Typically, a rise in periods of volatility and rising interest rates may lead to increased redemptions and volatility and decreased liquidity in the fixed-income markets, making it more difficult to sell fixed-income holdings. In general, the market price of debt securities with longer maturities will increase or decrease more in response to changes in interest rates than shorter-term securities. Securities issued by U.S. government agencies or government-sponsored enterprises may not be guaranteed by the U.S. Treasury. Other risk factors include credit risk (the debtor may default), prepayment risk (the debtor may pay its obligations early, reducing the amount of interest payments), extension risk (repayments may occur more slowly if interest rates rise) and income risk (distributions to shareholders may decline where interest rates fall or defaults occur). These risks could affect the value of a particular investment, possibly causing the Portfolio's share price and total return to be reduced and fluctuate more than other types of investments.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Focus Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Focus Risk: To the extent that the Portfolio or an Underlying Fund focuses on particular countries, regions, industries, sectors or types of investment from time to time, the Portfolio or Underlying Fund may be subject to greater risks of adverse developments in such areas of focus than a fund that invests in a wider variety of countries, regions, industries, sectors or investments.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Foreign Currency Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Foreign Currency Risk: Exposure to foreign securities denominated in non-US dollar currencies will subject the Portfolio to currency trading risks that include market risk and country risk. Market risk results from adverse changes in exchange rates. Country risk arises because a government may interfere with transactions in its currency.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Foreign Investment Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Foreign Investment Risk: Foreign investing involves risks not typically associated with U.S. investments, including adverse fluctuations in foreign currency values, adverse political, social and economic developments, less liquidity, greater volatility, restrictions on capital movements, less developed or less efficient trading markets, political instability, sanctions, and differing auditing and legal standards.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Growth Stock Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Growth Stock Risk: Growth stocks may be more volatile than other stocks because they are more sensitive to investors' perceptions of the issuing company's growth potential. In addition, growth stocks typically lack the dividend yield that can cushion stock prices in market downturns. The growth investing style can also fall out of favor, which may lead the Portfolio to underperform other funds that use different investing styles.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | High-Yield Debt Securities Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

High-Yield Debt Securities Risk: Lower-quality bonds (including loans), known as "high-yield" or "junk" bonds, and unrated securities of similar credit quality are considered speculative and involve greater risk of a complete loss of an investment, or delays of interest and principal payments, than higher-quality debt securities. Issuers of high-yield debt securities are typically not as strong financially as those issuing securities of higher credit quality. These issuers are more likely to encounter financial difficulties and are more vulnerable to changes in the relevant economy that could affect their ability to make interest and principal payments when due. The prices of high-yield debt securities generally fluctuate more than higher quality securities. High-yield debt securities are generally less liquid than higher quality securities, making them harder to sell and harder to value.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Large Cap Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Large Cap Risk: Large cap companies may be unable to respond quickly to new competitive challenges, such as changes in technology and consumer tastes, and also may not be able to attain the high growth rate of successful smaller companies, especially during extended periods of economic expansion.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Management Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Management Risk: The Portfolio's strategies may not produce the desired results, and may result in losses to the Portfolio.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Market Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Market Risk: Overall securities market risks may affect the value of individual securities. The market prices of securities may go up or down, sometimes rapidly or unpredictably, due to general market conditions, such as real or perceived adverse economic or political conditions. Factors such as foreign and domestic economic growth and market conditions, interest rate levels, and political events may adversely affect the securities markets. Local, regional or global events such as war, military conflict, geopolitical disputes, acts of terrorism, the spread of infectious illness or other public health issues, natural disasters, recessions, inflation, rapid interest rate changes, supply chain disruptions, tariffs and other restrictions on trade, sanctions, increased government spending, social or political unrest or other events, or the threat or potential threat of one or more such events and developments, could also have a significant impact on the Portfolio and its investments.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Mid Cap Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Mid Cap Risk: The securities of mid cap companies generally trade in lower volumes and are generally subject to greater and less predictable price changes than the securities of larger capitalization companies. Medium capitalization companies may be more vulnerable than larger, more established organizations to adverse business or economic developments.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Mortgage- and Asset-Backed Securities Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Mortgage- and Asset-Backed Securities Risk: Mortgage- and asset-backed securities differ from conventional debt securities because principal is paid back periodically over the life of the security rather than at maturity. An investor may receive unscheduled payments of principal due to voluntary prepayments, refinancings or foreclosures on the underlying loans. To the investor this means a loss of anticipated interest, and a portion of its principal investment represented by any premium the investor may have paid. Mortgage prepayments generally increase when interest rates fall. Mortgage-backed securities also are subject to extension risk. Rising interest rates could reduce the rate of prepayments on mortgage-backed securities and extend their life. This could cause the price of the mortgage-backed securities and the Underlying Fund's share price to fall and would make the mortgage-backed securities more sensitive to interest rate changes. Issuers of asset-backed securities may have limited ability to enforce the security interest in the underlying assets, and credit enhancements provided to support the securities, if any, may be inadequate to protect investors in the event of default. Like mortgage-backed securities, asset-backed securities are subject to prepayment and extension risks.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Over-the-Counter Transactions Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Over-the-Counter Transactions Risk: The Portfolio engages in over-the-counter ("OTC") transactions, some of which trade in a dealer network, rather than on an exchange. In general, there is less governmental regulation and supervision of transactions in the OTC markets than transactions entered into on organized exchanges, with OTC transactions subject to the risk that a counterparty to the transaction will not fulfill its contractual obligations.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Short Positions Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Short Positions Risk: Losses from short positions in derivatives contracts occur when the reference instrument increases in value. Losses from a short position in a derivatives contract could potentially be very large if the value of the underlying reference instrument rises dramatically in a short period of time, including the potential loss that exceeds the actual cost of the investment.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Small Cap Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Small Cap Risk: Small capitalization companies may be more vulnerable than larger, more established organizations to adverse business or economic developments. In particular, small capitalization companies may have more limited product lines, markets and financial resources and may depend on a relatively small management group.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Sovereign Debt Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Sovereign Debt 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.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Style Factors Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Style Factors Risk: The equity style factors (i.e., momentum, quality, value, low volatility and size) that determine the weight of each component security in an underlying index have characteristics that may cause an Underlying ETF to underperform the index or the market as a whole.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Tactical Asset Allocation Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Tactical Asset Allocation Risk: Tactical asset allocation is an investment strategy that actively adjusts a portfolio's asset allocation. The Portfolio's tactical asset management discipline may not work as intended. The Portfolio may not achieve its objective and may not perform as well as other funds using other asset management styles. The Sub-Adviser's evaluations and assumptions in selecting Underlying Funds or individual securities may be incorrect in view of actual market conditions, and may result in owning securities that underperform other securities.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Underlying Fund Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Underlying Fund Risk: Underlying Funds are subject to investment advisory and other expenses, which will be indirectly paid by the Portfolio. As a result, your cost of investing in the Portfolio will be higher than the cost of investing directly in an Underlying Fund and may be higher than other mutual funds that invest directly in stocks and bonds. Because the Portfolio's investments include shares of the Underlying Funds, the Portfolio's risks include the risks of each Underlying Fund.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Value Stock Risk [Member]  
Prospectus [Line Items] oef_ProspectusLineItems  
Risk [Text Block] oef_RiskTextBlock

Value Stock Risk: Value stocks involve the risk that they may never reach what the ETF manager believes is their full market value, either because the market fails to recognize the stock's intrinsic worth or the ETF manager misgauged that worth. Because different types of stocks tend to shift in and out of favor depending on market and economic conditions, the Portfolio's performance may sometimes be lower or higher than that of other types of mutual funds.

Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio Class II Shares  
Prospectus [Line Items] oef_ProspectusLineItems  
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) oef_MaximumDeferredSalesChargeOverOfferingPrice 0.00%
Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) oef_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther 0.00%
Redemption Fee (as a percentage of Amount Redeemed) oef_RedemptionFeeOverRedemption 0.00%
Management Fees (as a percentage of Assets) oef_ManagementFeesOverAssets 0.55%
Distribution and Service (12b-1) Fees oef_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses (as a percentage of Assets): oef_OtherExpensesOverAssets 0.15%
Acquired Fund Fees and Expenses oef_AcquiredFundFeesAndExpensesOverAssets 0.11% [1]
Expenses (as a percentage of Assets) oef_ExpensesOverAssets 1.06%
Fee Waiver or Reimbursement oef_FeeWaiverOrReimbursementOverAssets (0.07%) [2]
Net Expenses (as a percentage of Assets) oef_NetExpensesOverAssets 0.99%
Expense Example, with Redemption, 1 Year oef_ExpenseExampleYear01 $ 101
Expense Example, with Redemption, 3 Years oef_ExpenseExampleYear03 330
Expense Example, with Redemption, 5 Years oef_ExpenseExampleYear05 578
Expense Example, with Redemption, 10 Years oef_ExpenseExampleYear10 1,288
Expense Example, No Redemption, 1 Year oef_ExpenseExampleNoRedemptionYear01 101
Expense Example, No Redemption, 3 Years oef_ExpenseExampleNoRedemptionYear03 330
Expense Example, No Redemption, 5 Years oef_ExpenseExampleNoRedemptionYear05 578
Expense Example, No Redemption, 10 Years oef_ExpenseExampleNoRedemptionYear10 $ 1,288
Global Atlantic Moderately Aggressive Managed Risk Portfolio | S&P 500® Index (reflects no deduction for fees, expenses or taxes)  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Percent oef_AvgAnnlRtrPct 17.88%
Average Annual Return, Percent oef_AvgAnnlRtrPct 14.42%
Average Annual Return, Percent oef_AvgAnnlRtrPct 14.82%
Global Atlantic Moderately Aggressive Managed Risk Portfolio | S&P Global Managed Risk LargeMidCap Index – Moderate Aggressive (reflects no deduction for fees, expenses or taxes)  
Prospectus [Line Items] oef_ProspectusLineItems  
Average Annual Return, Percent oef_AvgAnnlRtrPct 12.57%
Average Annual Return, Percent oef_AvgAnnlRtrPct 7.87%
Average Annual Return, Percent oef_AvgAnnlRtrPct 8.11%
Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio Class II Shares  
Prospectus [Line Items] oef_ProspectusLineItems  
Annual Return [Percent] oef_AnnlRtrPct 2.23%
Annual Return [Percent] oef_AnnlRtrPct 17.61%
Annual Return [Percent] oef_AnnlRtrPct (7.33%)
Annual Return [Percent] oef_AnnlRtrPct 17.11%
Annual Return [Percent] oef_AnnlRtrPct 7.00%
Annual Return [Percent] oef_AnnlRtrPct 14.69%
Annual Return [Percent] oef_AnnlRtrPct (14.56%)
Annual Return [Percent] oef_AnnlRtrPct 13.83%
Annual Return [Percent] oef_AnnlRtrPct 12.56%
Annual Return [Percent] oef_AnnlRtrPct 10.20%
Average Annual Return, Percent oef_AvgAnnlRtrPct 10.20%
Average Annual Return, Percent oef_AvgAnnlRtrPct 6.71%
Average Annual Return, Percent oef_AvgAnnlRtrPct 6.81%
[1] Acquired Fund Fees and Expenses are the indirect cost of investing in other investment companies, the costs of which will not be included in the Portfolio's financial statements. The operating expenses in this fee table will not correlate to the expense ratio in the Portfolio's financial highlights because the financial statements include only the direct operating expenses incurred by the Portfolio.
[2] The Portfolio's investment adviser, Global Atlantic Investment Advisors, LLC (the "Adviser"), has contractually agreed to waive its fees and to reimburse expenses, at least until May 1, 2027, to ensure that total annual portfolio operating expenses after fee waiver and/or reimbursement (exclusive of any front-end or contingent deferred loads, brokerage fees and commissions, Acquired Fund Fees and Expenses, borrowing costs (such as interest and dividend expense on securities sold short), taxes and extraordinary expenses, such as litigation) will not exceed 0.88% of average daily net assets attributable to the Portfolio's shares. The expense reimbursement is subject to possible recoupment from the Portfolio in future years on a rolling three year basis (within the three years after the fees have been waived or reimbursed) if such recoupment, after giving effect to the recoupment amount, can be achieved within the lesser of the expense limits listed above and any expense limits applicable at the time of recoupment. The agreement may be terminated only by the Portfolio's Board of Trustees, on 60 days' written notice to the Adviser.