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Aristotle Small/Mid Cap Equity Fund  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading ARISTOTLE SMALL/MID CAP EQUITY FUND
Supplement to Prospectus [Text Block] rr_SupplementToProspectusTextBlock
Aristotle Funds logo_shaded grey_grey Funds.jpg

ARISTOTLE SMALL/MID CAP EQUITY FUND (THE “FUND”)
a series of Aristotle Funds Series Trust (the “Trust”)
Supplement dated April 1, 2024 to the Summary Prospectus and Prospectus dated October 19, 2023,
as may be supplemented and/or revised from time to time, as it relates to the Fund.
Effective April 1, 2024, the following changes have been made to the Fund’s Advisory Fee and Supervision and Administration Fee rates: (i) the Fund’s Advisory Fee applicable to all share classes has been reduced from 0.70% to 0.65%; (ii) the Supervision and Administration Fee for Class A, Class C and Class I-2 has been increased from 0.20% to 0.25%; and (iii) the Supervision and Administration Fee for Class I has been increased from 0.15% to 0.20%. As a result, there has been no change to the Fund’s total Management Fee for any share class.
Effective April 1, 2024, all references to the Fund’s Advisory Fee and Supervision and Administration Fee rates in the Summary Prospectus and Prospectus are hereby revised to reflect the changes described herein. Further, the Fees and Expenses of the Fund tables and Examples in the Summary Prospectus and the “Fund Summaries - Aristotle Small/Mid Cap Equity Fund” section of the Prospectus are hereby restated to reflect the changes described herein, as set forth below.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
The tables that follow describe 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 examples below. If these fees were included, the fees and expenses shown would be higher. You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible Funds of the Trust. More information about these and other discounts is available from your financial professional and in the Overview of the Share Classes section on page 114 in the Fund’s prospectus (the “Prospectus”) and in the appendix to this Prospectus titled Variations in Sales Charge Waivers and Discounts Available Through Specific Financial Intermediaries.

Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund 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 rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination July 31, 2025
Expense Example [Heading] rr_ExpenseExampleHeading Examples
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
The examples are intended to help you compare the cost of investing in the Fund with the cost of investing in other Funds of the Trust or
other mutual funds. Each Example assumes that you invest $10,000 in the noted share class of the Fund for the time periods indicated, that your investment has a 5% return each year, and that the Fund’s annual operating expenses remain as stated in the previous table for the time periods shown, except for the ten-year amounts for Class C shares that reflect the conversion to Class A shares six years after the end of the calendar month in which the shares were purchased and the fee waiver (expense limitation), which is only reflected for the contractual periods. Although your actual costs may be higher or lower, the examples show what your costs would be based on these assumptions.
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption Your expenses (in dollars) if you SELL your shares
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption Your expenses (in dollars) if you DON’T SELL your shares
Supplement Closing [Text Block] ck0001959372_SupplementClosing
Please retain this Supplement with your Summary Prospectus and Prospectus for future reference.
Aristotle Small/Mid Cap Equity Fund | Class A  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol ARAHX
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 4.25%
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.90% [1]
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.15%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets none [2]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 1.15%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $100,000 in Class A shares of eligible Funds of the Trust.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 100,000
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 537
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 775
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,031
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,763
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 537
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 775
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,031
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,763
Aristotle Small/Mid Cap Equity Fund | Class C  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol AISHX
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice 1.00%
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.90% [1]
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 1.00%
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 1.90%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets none [2]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 1.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 293
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 597
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 1,026
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 2,222
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 193
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 597
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 1,026
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 2,222
Aristotle Small/Mid Cap Equity Fund | Class I  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol ARIHX
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.85% [1]
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.85%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets none [2]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 0.85%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 87
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 271
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 471
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,049
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 87
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 271
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 471
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,049
Aristotle Small/Mid Cap Equity Fund | Class I-2  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol AIHHX
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.90% [1]
Distribution and Service (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.90%
Fee Waiver or Reimbursement rr_FeeWaiverOrReimbursementOverAssets none [2]
Net Expenses (as a percentage of Assets) rr_NetExpensesOverAssets 0.90%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 92
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 287
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 498
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 1,108
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 92
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 287
Expense Example, No Redemption, 5 Years rr_ExpenseExampleNoRedemptionYear05 498
Expense Example, No Redemption, 10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,108
[1]
The Management Fee consists of an Advisory Fee and a Supervision and Administration Fee paid to Aristotle Investment Services, LLC. The Advisory Fee is borne by the Fund at the same annual rate for all share classes of 0.65% of the average net assets. The Supervision and Administration Fee is borne separately by each class at an annual rate of 0.25% for Class A, Class C and Class I-2 and 0.20% for Class I of the net average assets of the class.
[2]
Aristotle Investment Services, LLC has contractually agreed, through July 31, 2025, to waive its management fees to the extent that the Fund’s Total Annual Fund Operating Expenses exceed 1.20% for Class A, 1.95% for Class C, 0.85% for Class I and 0.95% for Class I-2. Aristotle Investment Services, LLC may not recoup these waivers in future periods.