Fees and Expenses |
Apr. 29, 2026 |
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| Global Atlantic American Funds® Managed Risk Portfolio | Global Atlantic American Funds Managed Risk Portfolio | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Heading [Optional Text] | Fees and Expenses of the Portfolio: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Narrative [Text Block] | 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. |
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| Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] | 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. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Fees Caption [Optional Text] | Shareholder Fees (fees paid directly from your investment) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Fees [Table] |
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| Operating Expenses Caption [Optional Text] | Annual Portfolio Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual Fund Operating Expenses [Table] |
(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 0.87% 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. |
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| Expense Example [Heading] | Example: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example Narrative [Text Block] | 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: |
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| Expense Example, With Redemption [Table] |
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| Expense Example, No Redemption [Table] |
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| Portfolio Turnover [Heading] | Portfolio Turnover: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Portfolio Turnover [Text Block] | 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 23% of the average value of its portfolio. |
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| Portfolio Turnover, Rate | 23.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Global Atlantic Balanced Managed Risk Portfolio | Global Atlantic Balanced Managed Risk Portfolio | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Heading [Optional Text] | Fees and Expenses of the Portfolio: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Narrative [Text Block] | 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. |
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| Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] | 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. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Fees Caption [Optional Text] | Shareholder Fees (fees paid directly from your investment) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Fees [Table] |
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| Operating Expenses Caption [Optional Text] | Annual Portfolio Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual Fund Operating Expenses [Table] |
(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 0.92% 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. |
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| Expense Example [Heading] | Example: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example Narrative [Text Block] | 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: |
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| Expense Example, With Redemption [Table] |
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| Expense Example, No Redemption [Table] |
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| Portfolio Turnover [Heading] | Portfolio Turnover: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Portfolio Turnover [Text Block] | 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 33% of the average value of its portfolio. |
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| Portfolio Turnover, Rate | 33.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Global Atlantic BlackRock Selects Managed Risk Portfolio | Global Atlantic BlackRock Selects Managed Risk Portfolio | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Heading [Optional Text] | Fees and Expenses of the Portfolio: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Narrative [Text Block] | 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. |
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| Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] | 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. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Fees Caption [Optional Text] | Shareholder Fees (fees paid directly from your investment) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Fees [Table] |
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| Operating Expenses Caption [Optional Text] | Annual Portfolio Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual Fund Operating Expenses [Table] |
(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 0.94% 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. |
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| Expense Example [Heading] | Example: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example Narrative [Text Block] | 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: |
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| Expense Example, With Redemption [Table] |
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| Expense Example, No Redemption [Table] |
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| Portfolio Turnover [Heading] | Portfolio Turnover: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Portfolio Turnover [Text Block] | 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 84% of the average value of its portfolio. |
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| Portfolio Turnover, Rate | 84.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Global Atlantic Franklin Tactical Allocation Managed Risk Portfolio | Global Atlantic Franklin Tactical Allocation Managed Risk Portfolio | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Heading [Optional Text] | Fees and Expenses of the Portfolio: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Narrative [Text Block] | 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. |
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| Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] | 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. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Fees Caption [Optional Text] | Shareholder Fees (fees paid directly from your investment) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Fees [Table] |
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| Operating Expenses Caption [Optional Text] | Annual Portfolio Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual Fund Operating Expenses [Table] |
(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 1.19% 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. |
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| Expense Example [Heading] | Example: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example Narrative [Text Block] | 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: |
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| Expense Example, With Redemption [Table] |
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| Expense Example, No Redemption [Table] |
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| Portfolio Turnover [Heading] | Portfolio Turnover: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Portfolio Turnover [Text Block] | 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 20% of the average value of its portfolio (72% including dollar roll transactions). |
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| Portfolio Turnover, Rate | 20.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Global Atlantic Moderate Managed Risk Portfolio | Global Atlantic Moderate Managed Risk Portfolio | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Heading [Optional Text] | Fees and Expenses of the Portfolio: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Narrative [Text Block] | 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. |
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| Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] | 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. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Fees Caption [Optional Text] | Shareholder Fees (fees paid directly from your investment) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Fees [Table] |
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| Operating Expenses Caption [Optional Text] | Annual Portfolio Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual Fund Operating Expenses [Table] |
(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 0.92% 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. |
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| Expense Example [Heading] | Example: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example Narrative [Text Block] | 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: |
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| Expense Example, With Redemption [Table] |
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| Expense Example, No Redemption [Table] |
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| Portfolio Turnover [Heading] | Portfolio Turnover: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Portfolio Turnover [Text Block] | 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 31% of the average value of its portfolio. |
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| Portfolio Turnover, Rate | 31.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Global Atlantic Moderately Aggressive Managed Risk Portfolio | Global Atlantic Moderately Aggressive Managed Risk Portfolio | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Heading [Optional Text] | Fees and Expenses of the Portfolio: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Narrative [Text Block] | 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. |
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| Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] | 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. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Fees Caption [Optional Text] | Shareholder Fees (fees paid directly from your investment) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Fees [Table] |
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| Operating Expenses Caption [Optional Text] | Annual Portfolio Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual Fund Operating Expenses [Table] |
(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. |
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| Expense Example [Heading] | Example: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example Narrative [Text Block] | 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: |
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| Expense Example, With Redemption [Table] |
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| Expense Example, No Redemption [Table] |
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| Portfolio Turnover [Heading] | Portfolio Turnover: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Portfolio Turnover [Text Block] | 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. |
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| Portfolio Turnover, Rate | 32.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Global Atlantic Select Advisor Managed Risk Portfolio | Global Atlantic Select Advisor Managed Risk Portfolio | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Heading [Optional Text] | Fees and Expenses of the Portfolio: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Narrative [Text Block] | 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. |
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| Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] | 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. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Fees Caption [Optional Text] | Shareholder Fees (fees paid directly from your investment) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Fees [Table] |
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| Operating Expenses Caption [Optional Text] | Annual Portfolio Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual Fund Operating Expenses [Table] |
(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 0.64% 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. Additionally, the Adviser has contractually agreed, until at least May 1, 2027, to waive 0.40% of its advisory fee. This waiver is not subject to recoupment by the Adviser. The agreements may be terminated only by the Portfolio's Board of Trustees, on 60 days' written notice to the Adviser. |
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| Expense Example [Heading] | Example: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example Narrative [Text Block] | 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: |
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| Expense Example, With Redemption [Table] |
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| Expense Example, No Redemption [Table] |
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| Portfolio Turnover [Heading] | Portfolio Turnover: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Portfolio Turnover [Text Block] | 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 37% of the average value of its portfolio. |
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| Portfolio Turnover, Rate | 37.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Global Atlantic Wellington Research Managed Risk Portfolio | Global Atlantic Wellington Research Managed Risk Portfolio | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Heading [Optional Text] | Fees and Expenses of the Portfolio: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Narrative [Text Block] | 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. |
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| Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] | 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. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Fees Caption [Optional Text] | Shareholder Fees (fees paid directly from your investment) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Fees [Table] |
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| Operating Expenses Caption [Optional Text] | Annual Portfolio Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual Fund Operating Expenses [Table] |
(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 1.19% 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. |
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| Expense Example [Heading] | Example: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Example Narrative [Text Block] | 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: |
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| Expense Example, With Redemption [Table] |
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| Expense Example, No Redemption [Table] |
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| Portfolio Turnover [Heading] | Portfolio Turnover: | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Portfolio Turnover [Text Block] | 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 100% of the average value of its portfolio (111% including dollar roll transactions). |
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| Portfolio Turnover, Rate | 100.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||