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Abacus FCF International Leaders ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Abacus FCF International Leaders ETF
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Abacus FCF International Leaders ETF (the “Fund”) seeks to generate long-term total returns.
Expense [Heading] rr_ExpenseHeading Fees and Expenses
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock This table describes the fees and expenses that you may pay if you buy, hold and sell Shares. You may
also pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are
not reflected in the table or example below.
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):
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The Fund may pay transaction costs, including commissions, when it buys and sells securities (or “turns
over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result
in higher taxes when Shares are held in a taxable account. These costs, which are not reflected in the
annual fund operating expenses or in the example, affect the Fund’s performance. For the fiscal year
ended July 31, 2024, the Fund’s portfolio turnover rate was 55% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 55.00%
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent “Management Fee” has been restated to reflect current fees.
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock The following example is intended to help you compare the cost of investing in the Fund with the cost of
investing in other funds. The example assumes that you invest $10,000 for the time periods indicated and
then redeem all of your Shares at the end of those periods. The example also assumes that the Fund
provides a return of 5% per year and that operating expenses remain the same. The example does not
reflect any brokerage commissions that you may pay on purchases and sales of Shares.
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock The Fund is an actively managed exchange-traded fund (“ETF”). To pursue its investment objective, the
Fund invests, under normal market circumstances, at least 80% of its net assets (plus any borrowings for
investment purposes) in equity securities of companies from foreign countries, or depositary receipts
representing such securities. The Fund considers an issuer to be from a foreign country if: (i) its securities
are organized under the laws of a foreign country or the issuer maintains its principal place of business in
a foreign country; (ii) its securities are traded principally in a foreign country; or (iii) during the issuer's
most recent fiscal year, it derived at least 50% of its revenues or profits from goods produced or sold,
investments made, or services performed in a foreign country or has at least 50% of its assets in a foreign
country. The companies in which the Fund primarily invests are those from developed foreign markets,
although the Fund will also invest a portion of its assets in companies located in emerging markets (i.e.,
those that are in the early stages of their economic development).
The Fund seeks to invest in stocks of the most profitable companies that exhibit fundamental
characteristics associated with the potential for long-term capital appreciation, as identified by Abacus
FCF Advisors LLC (the “Adviser”) through extensive historical research. While the Adviser evaluates
companies of any market capitalization, the final portfolio primarily consists of large- and mid-cap
companies.
The Adviser utilizes its proprietary Abacus FCF Leaders Model (the “Model”) to evaluate securities in
the investment universe and scores them based on free cash flow return on invested capital (“FCF-
ROIC”). The Model assesses companies through a detailed analysis of factors such as capital expenditure,
accruals, cash flow margins and asset turnover to identify companies with strong and sustainable
profitability. These securities are assigned active weights primarily based on their FCF-ROIC
characteristics, with adjustments reflecting the Adviser’s systematic evaluation of company-specific risk
in the context of the business cycle. These active weights are integrated with free-float market
capitalization weights and rescaled to construct the final portfolio, seeking to ensure high-conviction
exposure to companies with strong FCF-ROIC metrics.
During earnings seasons, the Adviser typically implements more substantial adjustments to the Fund’s
portfolio based on updated Model outputs. However, the Adviser continuously monitors the portfolio and
retains discretion to make modifications to the Fund’s portfolio at any time, subject to the oversight and
supervision of the Board of Trustees of the Trust (the “Board”), to better capture daily updates and
opportunities identified by the Model.
The Adviser executes trades for the Fund’s portfolio based on insights generated by the Model. To
implement the Model’s outputs efficiently, the Adviser: (a) selects trading vehicles (e.g., stocks or
depositary receipts) with an emphasis on liquidity and cost-effectiveness; (b) manages cash positions to
address operational requirements or market disruptions deemed extreme by the Adviser; and (c) executes
trades to maintain portfolio alignment following corporate actions (e.g., mergers, spinoffs or
restructurings).
The Fund can use derivative instruments, including exchange-traded futures contracts, to seek to protect
the Fund's current or intended investments from broad fluctuations in securities prices.
From time to time the Fund may focus its investment (i.e., invest more than 15% of its total assets) in one
or more particular sectors or geographic regions. As of September 30, 2024, the Fund focuses its
investments in Asia and Europe, and also in the consumer discretionary and healthcare sectors.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration From time to time the Fund may focus its investment (i.e., invest more than 15% of its total assets) in one or more particular sectors or geographic regions. As of September 30, 2024, the Fund focuses its investments in Asia and Europe, and also in the consumer discretionary and healthcare sectors.
Risk [Heading] rr_RiskHeading Principal Risks
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock The following performance information indicates some of the risks of investing in the Fund. The bar chart
shows the Fund’s performance from year to year as of December 31. The table illustrates how the Fund’s
average annual returns for the 1-year, 5-year and since inception periods compare with those of a broad
measure of market performance. The Fund’s past performance, before and after taxes, does not
necessarily indicate how it will perform in the future. Updated performance information is also available
on the Fund’s website at www.abacusfcf.com.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following performance information indicates some of the risks of investing in the Fund.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.abacusfcf.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund’s past performance, before and after taxes, does not necessarily indicate how it will perform in the future.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock For the year-to-date period ended September 30, 2024, the Fund’s total return was 9.27%. During the
period of time shown in the bar chart, the Fund’s highest quarterly return was 19.03% for the quarter
ended June 30, 2020, and the lowest quarterly return was -22.25% for the quarter ended March 31, 2020.
Year to Date Return, Label rr_YearToDateReturnLabel year-to-date period
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2024
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 9.27%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 19.03%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (22.25%)
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns For the Period Ended December 31, 2023
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates during the period covered by the table above and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred After-tax returns shown are not relevant to investors who hold their Shares through tax-advantaged arrangements such as an individual retirement account (“IRA”) or other tax-advantaged accounts.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher The “Return After Taxes on Distributions and Sale of Fund Shares” may be higher than other return figures because when a capital loss occurs upon redemption of portfolio shares, a tax deduction is provided that benefits the investor.
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates
during the period covered by the table above and do not reflect the impact of state and local taxes. The
“Return After Taxes on Distributions and Sale of Fund Shares” may be higher than other return figures
because when a capital loss occurs upon redemption of portfolio shares, a tax deduction is provided that
benefits the investor. Actual after-tax returns depend on an investor’s tax situation and may differ from
those shown. After-tax returns shown are not relevant to investors who hold their Shares through tax-
advantaged arrangements such as an individual retirement account (“IRA”) or other tax-advantaged
accounts.
Abacus FCF International Leaders ETF | Risk Lose Money [Member]  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock An investor may lose money by investing in the Fund.
Abacus FCF International Leaders ETF | Foreign Investment Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Foreign Investment Risk. Returns on investments in foreign securities could be more volatile than, or
trail the returns on, investments in U.S. securities. Exposures to foreign securities entail special risks,
including due to: differences in information available about foreign issuers; differences in investor
protection standards in other jurisdictions; capital controls risks, including the risk of a foreign
jurisdiction imposing restrictions on the ability to repatriate or transfer currency or other assets; political,
diplomatic and economic risks; regulatory risks; and foreign market and trading risks, including the costs
of trading and risks of settlement in foreign jurisdictions. In addition, the Fund’s investments in securities
denominated in other currencies could decline due to changes in local currency relative to the value of the
U.S. dollar, which may affect the Fund’s returns.
Abacus FCF International Leaders ETF | Equity Investing Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Equity Investing Risk. An investment in the Fund involves risks similar to those of investing in any fund
holding equity securities, such as market fluctuations, changes in interest rates and perceived trends in
stock prices. The values of equity securities could decline generally or could underperform other
investments. In addition, securities may decline in value due to factors affecting a specific issuer, market
or securities markets generally.
Abacus FCF International Leaders ETF | Geographic Region Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Geographic Region Risk. To the extent that the Fund invests a significant portion of its assets in a
specific geographic region or a particular country, the Fund will generally have more exposure to that
region or country’s economic risks. In the event of economic or political turmoil or a deterioration of
diplomatic relations in a region or country where a significant portion of the Fund’s assets are invested,
the Fund may experience substantial illiquidity or reduction in the value of the Fund’s investments.
Adverse conditions in a certain region or country can also adversely affect securities of issuers in other
countries whose economies appear to be unrelated.
•Asia Risk.  Investments in securities of issuers in Asian countries involve risks that are
specific to Asia, including certain legal, regulatory, political and economic risks. Certain
Asian countries have experienced expropriation and/or nationalization of assets, confiscatory
taxation, political instability, armed conflict and social instability as a result of religious,
ethnic, socio-economic and/or political unrest. Some economies in this region are dependent
on a range of commodities, and are strongly affected by international commodity prices and
particularly vulnerable to price changes for these products. The market for securities in this
region may also be directly influenced by the flow of international capital, and by the
economic and market conditions of neighboring countries. Many Asian economies have
experienced rapid growth and industrialization, and there is no assurance that this growth rate
will be maintained. Some Asian economies are highly dependent on trade and economic
conditions in other countries can impact these economies.
•Europe Risk. Decreasing imports or exports, changes in governmental or European Union
(the “EU”) regulations on trade, changes in the exchange rate of the euro, the default or threat
of default by an EU member country on its sovereign debt, and/or an economic recession in
an EU member country may have a significant adverse effect on the securities of EU issuers.
The European financial markets have recently experienced volatility and adversity due to
concerns about withdrawal of member countries from the EU and economic downturns and
rising government debt levels in several European countries. These events have adversely
affected the exchange rate of the euro and may continue to significantly affect every country
in Europe.
Abacus FCF International Leaders ETF | Geographic Region Risk, Asia Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock •Asia Risk.  Investments in securities of issuers in Asian countries involve risks that are
specific to Asia, including certain legal, regulatory, political and economic risks. Certain
Asian countries have experienced expropriation and/or nationalization of assets, confiscatory
taxation, political instability, armed conflict and social instability as a result of religious,
ethnic, socio-economic and/or political unrest. Some economies in this region are dependent
on a range of commodities, and are strongly affected by international commodity prices and
particularly vulnerable to price changes for these products. The market for securities in this
region may also be directly influenced by the flow of international capital, and by the
economic and market conditions of neighboring countries. Many Asian economies have
experienced rapid growth and industrialization, and there is no assurance that this growth rate
will be maintained. Some Asian economies are highly dependent on trade and economic
conditions in other countries can impact these economies.
Abacus FCF International Leaders ETF | Geographic Region Risk, Europe Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock •Europe Risk. Decreasing imports or exports, changes in governmental or European Union
(the “EU”) regulations on trade, changes in the exchange rate of the euro, the default or threat
of default by an EU member country on its sovereign debt, and/or an economic recession in
an EU member country may have a significant adverse effect on the securities of EU issuers.
The European financial markets have recently experienced volatility and adversity due to
concerns about withdrawal of member countries from the EU and economic downturns and
rising government debt levels in several European countries. These events have adversely
affected the exchange rate of the euro and may continue to significantly affect every country
in Europe.
Abacus FCF International Leaders ETF | Emerging Markets Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Emerging Markets Risk. Investments in emerging markets are generally subject to greater market
volatility, political, social and economic instability, uncertain trading markets and more governmental
limitations than investments in more developed markets. Companies in emerging markets may be subject
to less stringent regulatory, accounting, auditing, and financial reporting and recordkeeping standards
than companies in more developed countries, which could impede the Adviser's ability to evaluate such
companies or impact the Fund's performance. Securities laws and the enforcement of systems of taxation
in many emerging market countries may change quickly and unpredictably, and the ability to bring and
enforce actions may be limited or otherwise impaired. In addition, investments in emerging markets may
experience lower trading volume, greater price fluctuations, delayed settlement, unexpected market
closures and lack of timely information, and may be subject to additional transaction costs.
Abacus FCF International Leaders ETF | Sector Focus Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Sector Focus Risk. To the extent that the Fund’s investments are focused on a particular sector, the Fund
is subject to loss due to adverse occurrences that may affect that sector. Focusing on a particular sector
could increase the Fund’s volatility over the short term.
Abacus FCF International Leaders ETF | Small And Medium Capitalization Company Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Small and Medium Capitalization Company Risk. Investing in securities of small and medium
capitalization companies involves greater risk than customarily is associated with investing in larger,
more established companies. These companies’ securities may be more volatile and less liquid than those
of more established companies. Often, small and medium capitalization companies and the industries in
which they focus are still evolving and, as a result, they may be more sensitive to changing market
conditions. Small and medium capitalization companies may be particularly affected by interest rate
increases, as they may find it more difficult to borrow money to continue or expand operations or may
have difficulty in repaying any loans which are floating rate.
Abacus FCF International Leaders ETF | Depositary Receipts Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Depositary Receipts Risk. The risks of investments in depositary receipts are substantially similar to
Foreign Investment Risks. In addition, depositary receipts may not track the price of the underlying
foreign securities, and their value may change materially at times when the U.S. markets are not open for
trading.
Abacus FCF International Leaders ETF | Derivatives Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Derivatives Risk. A derivative instrument derives its value from an underlying security, currency,
commodity, interest rate, index or other asset (collectively, “underlying asset”). The Fund’s investments
in derivatives may pose risks in addition to and greater than those associated with investing directly in the
underlying assets, including counterparty, leverage and liquidity risks. Derivatives may also be harder to
value, less tax efficient and subject to changing government regulation that could impact the Fund’s
ability to use certain derivatives or their cost. Derivatives strategies may not always be successful.
•Futures Contracts Risk. Exchange-traded futures contracts are a type of derivative, which call
for the future delivery of an asset, or cash settlement, at a certain stated price on a specified
future date. Futures contracts involve the risk of imperfect correlation between movements in
the price of the instruments and the price of the underlying assets. In addition, there is the risk
that the Fund may not be able to enter into a closing transaction because of an illiquid market.
Exchanges can limit the number of positions that can be held or controlled by the Fund thus
limiting the ability to implement the Fund’s strategies. Futures markets are highly volatile,
and the use of futures may increase the volatility of the Fund’s NAV.
Abacus FCF International Leaders ETF | Derivatives Risk, Futures Contracts Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock •Futures Contracts Risk. Exchange-traded futures contracts are a type of derivative, which call
for the future delivery of an asset, or cash settlement, at a certain stated price on a specified
future date. Futures contracts involve the risk of imperfect correlation between movements in
the price of the instruments and the price of the underlying assets. In addition, there is the risk
that the Fund may not be able to enter into a closing transaction because of an illiquid market.
Exchanges can limit the number of positions that can be held or controlled by the Fund thus
limiting the ability to implement the Fund’s strategies. Futures markets are highly volatile,
and the use of futures may increase the volatility of the Fund’s NAV.
Abacus FCF International Leaders ETF | Management Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Management Risk. The Fund is actively managed using proprietary Models. There can be no guarantee
that the Fund will achieve its investment objective or that the Models will produce the intended results.
The Fund may be adversely affected by imperfections, errors or limitations in the construction or
implementation of the Models and/or the Adviser's ability to monitor and timely adjust the metrics or
update the data or features underlying the Models. Any of these factors could result in the Fund
underperforming comparable investment vehicles. In addition, the Adviser’s investment process will
result in the Fund holding a more limited number of securities. As a result, each investment has a greater
effect on the Fund’s overall performance and any change in the value of these securities could
significantly affect the value of your investment in the Fund.
Abacus FCF International Leaders ETF | Market Events Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Market Events Risk. The value of securities in the Fund's portfolio may decline due to daily fluctuations
in the securities markets that are generally beyond the Fund's control, including the quality of the Fund's
investments, economic conditions, adverse investor sentiment, lower demand for a company's goods or
services, and general market conditions. In a declining market, the prices for all securities (including
those in the Fund's portfolio) may decline, regardless of their long-term prospects. Security values tend to
move in cycles, with periods when securities markets generally rise and periods when they generally
decline. In addition, local, regional or global events such as war, acts of terrorism, the spread of infectious
illness or other public health issue, recessions, natural disasters, or other events could have a significant
impact on the Fund, its investments and the trading of its Shares.
Abacus FCF International Leaders ETF | ETF Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock ETF Risk. As an ETF, the Fund is subject to the following risks:
•Authorized Participants Concentration Risk. The Fund may have a limited number of
financial institutions that may act as Authorized Participants (“APs”). To the extent that those
APs exit the business or are unable to process creation and/or redemption orders, Shares may
trade at a discount to NAV and possibly face delisting.
•Flash Crash Risk. Sharp price declines in securities owned by the Fund may trigger trading
halts, which may result in the Fund’s shares trading in the market at an increasingly large
discount to NAV during part (or all) of a trading day. Shareholders could suffer significant
losses to the extent that they sell Shares at these temporarily low market prices.
•International Closed Markets Trading Risk. Because certain of the Fund’s investments trade
in markets that are closed when the Fund and Exchange are open, there are likely to be
deviations between the current prices of such investments and the prices at which such
investments are valued by the Fund. As a result, Shares may appear to trade at a significant
discount or premium to NAV.
•Large Shareholder Risk.  Certain shareholders, including the Adviser or an affiliate of the
Adviser, or groups of related shareholders, such as those investing through one or more
model portfolios, may own a substantial amount of the Shares. The disposition of Shares by
large shareholders resulting in redemptions through or by APs could have a significant
negative impact on the Fund. In addition, transactions by large shareholders may account for
a large percentage of the trading volume on the Exchange and may, therefore, have a material
upward or downward effect on the market price of the Shares.
•Premium-Discount Risk. Shares may trade above or below their NAV. Accordingly, investors
may pay more than NAV when purchasing Shares or receive less than NAV when selling
Shares. The market prices of Shares will generally fluctuate in accordance with changes in
NAV, changes in the relative supply of, and demand for, Shares, and changes in the liquidity,
or the perceived liquidity, of the Fund’s holdings.
•Secondary Market Trading Risk. Investors buying or selling Shares in the secondary market
may pay brokerage commissions or other charges, which may be a significant proportional
cost for investors seeking to buy or sell relatively small amounts of Shares. Although the
Shares are listed on the Exchange, there can be no assurance that an active or liquid trading
market for them will develop or be maintained. In addition, trading in Shares on the
Exchange may be halted.
Abacus FCF International Leaders ETF | ETF Risk, Authorized Participants Concentration Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock •Authorized Participants Concentration Risk. The Fund may have a limited number of
financial institutions that may act as Authorized Participants (“APs”). To the extent that those
APs exit the business or are unable to process creation and/or redemption orders, Shares may
trade at a discount to NAV and possibly face delisting.
Abacus FCF International Leaders ETF | ETF Risk, Flash Crash Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock •Flash Crash Risk. Sharp price declines in securities owned by the Fund may trigger trading
halts, which may result in the Fund’s shares trading in the market at an increasingly large
discount to NAV during part (or all) of a trading day. Shareholders could suffer significant
losses to the extent that they sell Shares at these temporarily low market prices.
Abacus FCF International Leaders ETF | ETF Risk, International Closed Markets Trading Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock •International Closed Markets Trading Risk. Because certain of the Fund’s investments trade
in markets that are closed when the Fund and Exchange are open, there are likely to be
deviations between the current prices of such investments and the prices at which such
investments are valued by the Fund. As a result, Shares may appear to trade at a significant
discount or premium to NAV.
Abacus FCF International Leaders ETF | ETF Risk, Large Shareholder Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock •Large Shareholder Risk.  Certain shareholders, including the Adviser or an affiliate of the
Adviser, or groups of related shareholders, such as those investing through one or more
model portfolios, may own a substantial amount of the Shares. The disposition of Shares by
large shareholders resulting in redemptions through or by APs could have a significant
negative impact on the Fund. In addition, transactions by large shareholders may account for
a large percentage of the trading volume on the Exchange and may, therefore, have a material
upward or downward effect on the market price of the Shares.
Abacus FCF International Leaders ETF | ETF Risk, Premium-Discount Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock •Premium-Discount Risk. Shares may trade above or below their NAV. Accordingly, investors
may pay more than NAV when purchasing Shares or receive less than NAV when selling
Shares. The market prices of Shares will generally fluctuate in accordance with changes in
NAV, changes in the relative supply of, and demand for, Shares, and changes in the liquidity,
or the perceived liquidity, of the Fund’s holdings.
Abacus FCF International Leaders ETF | ETF Risk, Secondary Market Trading Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock •Secondary Market Trading Risk. Investors buying or selling Shares in the secondary market
may pay brokerage commissions or other charges, which may be a significant proportional
cost for investors seeking to buy or sell relatively small amounts of Shares. Although the
Shares are listed on the Exchange, there can be no assurance that an active or liquid trading
market for them will develop or be maintained. In addition, trading in Shares on the
Exchange may be halted.
Abacus FCF International Leaders ETF | MSCI All Country World Index ex USA (reflects no deduction for fees, expenses, or taxes)  
Prospectus [Line Items] rr_ProspectusLineItems  
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Label rr_AverageAnnualReturnLabel MSCI All Country World Index ex USA (reflects no deduction for fees, expenses, or taxes)
1 Year rr_AverageAnnualReturnYear01 15.62%
5 Years rr_AverageAnnualReturnYear05 7.08%
Since Inception rr_AverageAnnualReturnSinceInception 4.61%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 27, 2017
Abacus FCF International Leaders ETF | Abacus FCF International Leaders ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol ABLG
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.54% [1],[2]
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets none
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.54%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 55
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 173
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 302
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 677
Annual Return 2018 rr_AnnualReturn2018 (16.77%)
Annual Return 2019 rr_AnnualReturn2019 24.04%
Annual Return 2020 rr_AnnualReturn2020 18.83%
Annual Return 2021 rr_AnnualReturn2021 17.03%
Annual Return 2022 rr_AnnualReturn2022 (24.32%)
Annual Return 2023 rr_AnnualReturn2023 17.39%
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 17.39%
5 Years rr_AverageAnnualReturnYear05 8.91%
Since Inception rr_AverageAnnualReturnSinceInception 5.06%
Inception Date rr_AverageAnnualReturnInceptionDate Jun. 27, 2017
Abacus FCF International Leaders ETF | Abacus FCF International Leaders ETF | After Taxes on Distributions  
Prospectus [Line Items] rr_ProspectusLineItems  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 16.97%
5 Years rr_AverageAnnualReturnYear05 8.39%
Since Inception rr_AverageAnnualReturnSinceInception 4.66%
Abacus FCF International Leaders ETF | Abacus FCF International Leaders ETF | After Taxes on Distributions and Sales  
Prospectus [Line Items] rr_ProspectusLineItems  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Shares
1 Year rr_AverageAnnualReturnYear01 11.02%
5 Years rr_AverageAnnualReturnYear05 7.27%
Since Inception rr_AverageAnnualReturnSinceInception 4.16%
Abacus FCF Leaders ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk/Return [Heading] rr_RiskReturnHeading Abacus FCF Leaders ETF
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Abacus FCF Leaders ETF (the “Fund”) seeks to generate long-term returns in excess of the total
return of the Russell 3000® Index (the "Index"), with less volatility than the Index.
Expense [Heading] rr_ExpenseHeading Fees and Expenses
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock This table describes the fees and expenses that you may pay if you buy, hold and sell Shares. You may
also pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are
not reflected in the table or example below.
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):
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The Fund may pay transaction costs, including commissions, when it buys and sells securities (or “turns
over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result
in higher taxes when Shares are held in a taxable account. These costs, which are not reflected in the
annual fund operating expenses or in the example, affect the Fund’s performance. For the fiscal year
ended July 31, 2024, the Fund’s portfolio turnover rate was 70% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 70.00%
Expenses Restated to Reflect Current [Text] rr_ExpensesRestatedToReflectCurrent “Management Fee” has been restated to reflect current fees.
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock The following example is intended to help you compare the cost of investing in the Fund with the cost of
investing in other funds. The example assumes that you invest $10,000 for the time periods indicated and
then redeem all of your Shares at the end of those periods. The example also assumes that the Fund
provides a return of 5% per year and that operating expenses remain the same. The example does not
reflect any brokerage commissions that you may pay on purchases and sales of Shares.
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock The Fund is an actively managed exchange-traded fund (“ETF”). To pursue its investment objective, the
Fund invests, under normal market circumstances, at least 80% of its net assets (plus any borrowings for
investment purposes) in equity securities of companies from the United States. The Fund considers an
issuer to be from the United States if: (i) its securities are organized under the laws of the United States or
the issuer maintains its principal place of business in the United States; (ii) its securities are traded
principally in the United States; or (iii) during the issuer's most recent fiscal year, it derived at least 50%
of its revenues or profits from goods produced or sold, investments made, or services performed in the
United States or has at least 50% of its assets in the United States.
The Fund seeks to invest in stocks of the most profitable companies that exhibit fundamental
characteristics associated with the potential for long-term capital appreciation, as identified by Abacus
FCF Advisors LLC (the “Adviser”) through extensive historical research. While the Adviser evaluates
companies of any market capitalization, the final portfolio primarily consists of large- and mid-cap
companies.
The Adviser utilizes its proprietary Abacus FCF Leaders Model (the “Model”) to evaluate securities in
the investment universe and scores them based on free cash flow return on invested capital (“FCF-
ROIC”). The Model assesses companies through a detailed analysis of factors such as capital expenditure,
accruals, cash flow margins and asset turnover to identify companies with strong and sustainable
profitability. These securities are assigned active weights primarily based on their FCF-ROIC
characteristics, with adjustments reflecting the Adviser’s systematic evaluation of company-specific risk
in the context of the business cycle. These active weights are integrated with free-float market
capitalization weights and rescaled to construct the final portfolio, seeking to ensure high-conviction
exposure to companies with strong FCF-ROIC metrics.
During earnings seasons, the Adviser typically implements more substantial adjustments to the Fund’s
portfolio based on updated Model outputs. However, the Adviser continuously monitors the portfolio and
retains discretion to make modifications to the Fund’s portfolio at any time, subject to the oversight and
supervision of the Board of Trustees of the Trust (the “Board”), to better capture daily updates and
opportunities identified by the Model.
The Adviser executes trades for the Fund’s portfolio based on insights generated by the Model. To
implement the Model’s outputs efficiently, the Adviser: (a) manages cash positions to address operational
requirements or market disruptions deemed extreme by the Adviser; and (b) executes trades to maintain
portfolio alignment following corporate actions (e.g., mergers, spinoffs or restructurings).
The Fund can use derivative instruments, including exchange-traded futures contracts, to seek to protect
the Fund's current or intended investments from broad fluctuations in securities prices.
From time to time the Fund may focus its investment (i.e., invest more than 15% of its total assets) in one
or more particular sectors. As of September 30, 2024, the Fund focuses its investments in the technology
sector.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration From time to time the Fund may focus its investment (i.e., invest more than 15% of its total assets) in one or more particular sectors. As of September 30, 2024, the Fund focuses its investments in the technology sector.
Risk [Heading] rr_RiskHeading Principal Risks
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock The following performance information indicates some of the risks of investing in the Fund. The bar chart
shows the Fund’s performance from year to year as of December 31. The table illustrates how the Fund’s
average annual returns for the 1-year, 5-year and since inception periods compare with those of a broad
measure of market performance. The Fund’s past performance, before and after taxes, does not
necessarily indicate how it will perform in the future. Updated performance information is also available
on the Fund’s website at www.abacusfcf.com.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The following performance information indicates some of the risks of investing in the Fund.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress www.abacusfcf.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The Fund’s past performance, before and after taxes, does not necessarily indicate how it will perform in the future.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock For the year-to-date period ended September 30, 2024, the Fund’s total return was 15.81%. During the
period of time shown in the bar chart, the Fund’s highest quarterly return was 22.22% for the quarter
ended June 30, 2020, and the lowest quarterly return was -21.87% for the quarter ended March 31, 2020.
Year to Date Return, Label rr_YearToDateReturnLabel year-to-date period
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2024
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 15.81%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel highest quarterly return
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 22.22%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel lowest quarterly return
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (21.87%)
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns For the Period Ended December 31, 2023
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates during the period covered by the table above and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred After-tax returns shown are not relevant to investors who hold their Shares through tax-advantaged arrangements such as an individual retirement account (“IRA”) or other tax-advantaged accounts.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher The “Return After Taxes on Distributions and Sale of Fund Shares” may be higher than other return figures because when a capital loss occurs upon redemption of portfolio shares, a tax deduction is provided that benefits the investor.
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates
during the period covered by the table above and do not reflect the impact of state and local taxes. The
“Return After Taxes on Distributions and Sale of Fund Shares” may be higher than other return figures
because when a capital loss occurs upon redemption of portfolio shares, a tax deduction is provided that
benefits the investor. Actual after-tax returns depend on an investor’s tax situation and may differ from
those shown. After-tax returns shown are not relevant to investors who hold their Shares through tax-
advantaged arrangements such as an individual retirement account (“IRA”) or other tax-advantaged
accounts.
Abacus FCF Leaders ETF | Risk Lose Money [Member]  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock An investor may lose money by investing in the Fund.
Abacus FCF Leaders ETF | Equity Investing Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Equity Investing Risk. An investment in the Fund involves risks similar to those of investing in any fund
holding equity securities, such as market fluctuations, changes in interest rates and perceived trends in
stock prices. The values of equity securities could decline generally or could underperform other
investments. In addition, securities may decline in value due to factors affecting a specific issuer, market
or securities markets generally.
Abacus FCF Leaders ETF | Geographic Region Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Geographic Region Risk. Because the Fund invests a significant portion of its assets in the U.S., the
Fund will generally have more exposure to economic risks affecting the U.S. In the event of economic or
political turmoil or a deterioration of diplomatic relations in the U.S., the Fund may experience substantial
illiquidity or reduction in the value of the Fund’s investments. Adverse conditions in other countries
whose economies appear to be unrelated can also adversely affect the Fund’s U.S. investments.
Abacus FCF Leaders ETF | Sector Focus Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Sector Focus Risk. To the extent that the Fund’s investments are focused on a particular sector, the Fund
is subject to loss due to adverse occurrences that may affect that sector. Focusing on a particular sector
could increase the Fund’s volatility over the short term.
Abacus FCF Leaders ETF | Small And Medium Capitalization Company Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Small and Medium Capitalization Company Risk. Investing in securities of small and medium
capitalization companies involves greater risk than customarily is associated with investing in larger,
more established companies. These companies’ securities may be more volatile and less liquid than those
of more established companies. Often, small and medium capitalization companies and the industries in
which they focus are still evolving and, as a result, they may be more sensitive to changing market
conditions. Small and medium capitalization companies may be particularly affected by interest rate
increases, as they may find it more difficult to borrow money to continue or expand operations, or may
have difficulty in repaying any loans which are floating rate.
Abacus FCF Leaders ETF | Derivatives Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Derivatives Risk. A derivative instrument derives its value from an underlying security, currency,
commodity, interest rate, index or other asset (collectively, “underlying asset”). The Fund’s investments
in derivatives may pose risks in addition to and greater than those associated with investing directly in the
underlying assets, including counterparty, leverage and liquidity risks. Derivatives may also be harder to
value, less tax efficient and subject to changing government regulation that could impact the Fund’s
ability to use certain derivatives or their cost. Derivatives strategies may not always be successful.
• Futures Contracts Risk. Exchange-traded futures contracts are a type of derivative, which
call for the future delivery of an asset, or cash settlement, at a certain stated price on a
specified future date. Futures contracts involve the risk of imperfect correlation between
movements in the price of the instruments and the price of the underlying assets. In addition,
there is the risk that the Fund may not be able to enter into a closing transaction because of an
illiquid market. Exchanges can limit the number of positions that can be held or controlled by
the Fund thus limiting the ability to implement the Fund’s strategies. Futures markets are
highly volatile, and the use of futures may increase the volatility of the Fund’s NAV.
Abacus FCF Leaders ETF | Derivatives Risk, Futures Contracts Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock • Futures Contracts Risk. Exchange-traded futures contracts are a type of derivative, which
call for the future delivery of an asset, or cash settlement, at a certain stated price on a
specified future date. Futures contracts involve the risk of imperfect correlation between
movements in the price of the instruments and the price of the underlying assets. In addition,
there is the risk that the Fund may not be able to enter into a closing transaction because of an
illiquid market. Exchanges can limit the number of positions that can be held or controlled by
the Fund thus limiting the ability to implement the Fund’s strategies. Futures markets are
highly volatile, and the use of futures may increase the volatility of the Fund’s NAV.
Abacus FCF Leaders ETF | Management Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Management Risk. The Fund is actively managed using proprietary Models. There can be no guarantee
that the Fund will achieve its investment objective or that the Models will produce the intended results.
The Fund may be adversely affected by imperfections, errors or limitations in the construction or
implementation of the Models and/or the Adviser's ability to monitor and timely adjust the metrics or
update the data or features underlying the Models. Any of these factors could result in the Fund
underperforming comparable investment vehicles. In addition, the Adviser’s investment process will
result in the Fund holding a more limited number of securities. As a result, each investment has a greater
effect on the Fund’s overall performance and any change in the value of these securities could
significantly affect the value of your investment in the Fund.
Abacus FCF Leaders ETF | Market Events Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock Market Events Risk. The value of securities in the Fund's portfolio may decline due to daily fluctuations
in the securities markets that are generally beyond the Fund's control, including the quality of the Fund's
investments, economic conditions, adverse investor sentiment, lower demand for a company's goods or
services, and general market conditions. In a declining market, the prices for all securities (including
those in the Fund's portfolio) may decline, regardless of their long-term prospects. Security values tend to
move in cycles, with periods when securities markets generally rise and periods when they generally
decline. In addition, local, regional or global events such as war, acts of terrorism, the spread of infectious
illness or other public health issue, recessions, natural disasters, or other events could have a significant
impact on the Fund, its investments and the trading of its Shares.
Abacus FCF Leaders ETF | ETF Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock ETF Risk. As an ETF, the Fund is subject to the following risks:
•Authorized Participants Concentration Risk. The Fund may have a limited number of
financial institutions that may act as Authorized Participants (“APs”). To the extent that those
APs exit the business or are unable to process creation and/or redemption orders, Shares may
trade at a discount to NAV and possibly face delisting.
•Flash Crash Risk. Sharp price declines in securities owned by the Fund may trigger trading
halts, which may result in the Fund’s shares trading in the market at an increasingly large
discount to NAV during part (or all) of a trading day. Shareholders could suffer significant
losses to the extent that they sell Shares at these temporarily low market prices.
•Large Shareholder Risk. Certain shareholders, including the Adviser or an affiliate of the
Adviser, or groups of related shareholders, such as those investing through one or more
model portfolios, may own a substantial amount of the Shares. The disposition of Shares by
large shareholders resulting in redemptions through or by APs, could have a significant
negative impact on the Fund. In addition, transactions by large shareholders may account for
a large percentage of the trading volume on the Exchange and may, therefore, have a material
upward or downward effect on the market price of the Shares.
•Premium-Discount Risk. Shares may trade above or below their NAV. Accordingly, investors
may pay more than NAV when purchasing Shares or receive less than NAV when selling
Shares. The market prices of Shares will generally fluctuate in accordance with changes in
NAV, changes in the relative supply of, and demand for, Shares, and changes in the liquidity,
or the perceived liquidity, of the Fund’s holdings.
•Secondary Market Trading Risk. Investors buying or selling Shares in the secondary market
may pay brokerage commissions or other charges, which may be a significant proportional
cost for investors seeking to buy or sell relatively small amounts of Shares. Although the
Shares are listed on the Exchange, there can be no assurance that an active or liquid trading
market for them will develop or be maintained. In addition, trading in Shares on the
Exchange may be halted.
Abacus FCF Leaders ETF | ETF Risk, Authorized Participants Concentration Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock •Authorized Participants Concentration Risk. The Fund may have a limited number of
financial institutions that may act as Authorized Participants (“APs”). To the extent that those
APs exit the business or are unable to process creation and/or redemption orders, Shares may
trade at a discount to NAV and possibly face delisting.
Abacus FCF Leaders ETF | ETF Risk, Flash Crash Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock •Flash Crash Risk. Sharp price declines in securities owned by the Fund may trigger trading
halts, which may result in the Fund’s shares trading in the market at an increasingly large
discount to NAV during part (or all) of a trading day. Shareholders could suffer significant
losses to the extent that they sell Shares at these temporarily low market prices.
Abacus FCF Leaders ETF | ETF Risk, Large Shareholder Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock •Large Shareholder Risk. Certain shareholders, including the Adviser or an affiliate of the
Adviser, or groups of related shareholders, such as those investing through one or more
model portfolios, may own a substantial amount of the Shares. The disposition of Shares by
large shareholders resulting in redemptions through or by APs, could have a significant
negative impact on the Fund. In addition, transactions by large shareholders may account for
a large percentage of the trading volume on the Exchange and may, therefore, have a material
upward or downward effect on the market price of the Shares.
Abacus FCF Leaders ETF | ETF Risk, Premium-Discount Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock •Premium-Discount Risk. Shares may trade above or below their NAV. Accordingly, investors
may pay more than NAV when purchasing Shares or receive less than NAV when selling
Shares. The market prices of Shares will generally fluctuate in accordance with changes in
NAV, changes in the relative supply of, and demand for, Shares, and changes in the liquidity,
or the perceived liquidity, of the Fund’s holdings.
Abacus FCF Leaders ETF | ETF Risk, Secondary Market Trading Risk Member  
Prospectus [Line Items] rr_ProspectusLineItems  
Risk [Text Block] rr_RiskTextBlock •Secondary Market Trading Risk. Investors buying or selling Shares in the secondary market
may pay brokerage commissions or other charges, which may be a significant proportional
cost for investors seeking to buy or sell relatively small amounts of Shares. Although the
Shares are listed on the Exchange, there can be no assurance that an active or liquid trading
market for them will develop or be maintained. In addition, trading in Shares on the
Exchange may be halted.
Abacus FCF Leaders ETF | Russell 3000® Index
(reflects no deduction for fees, expenses, or taxes)  
Prospectus [Line Items] rr_ProspectusLineItems  
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses, or taxes)
Label rr_AverageAnnualReturnLabel Russell 3000® Index(reflects no deduction for fees, expenses, or taxes)
1 Year rr_AverageAnnualReturnYear01 25.96%
5 Years rr_AverageAnnualReturnYear05 15.16%
Since Inception rr_AverageAnnualReturnSinceInception 13.03%
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 27, 2016
Abacus FCF Leaders ETF | Abacus FCF Leaders ETF  
Prospectus [Line Items] rr_ProspectusLineItems  
Trading Symbol dei_TradingSymbol ABFL
Management Fees (as a percentage of Assets) rr_ManagementFeesOverAssets 0.49% [3],[4]
Other Expenses (as a percentage of Assets): rr_OtherExpensesOverAssets none
Expenses (as a percentage of Assets) rr_ExpensesOverAssets 0.49%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 50
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 274
Expense Example, with Redemption, 5 Years rr_ExpenseExampleYear05 157
Expense Example, with Redemption, 10 Years rr_ExpenseExampleYear10 $ 616
Annual Return 2017 rr_AnnualReturn2017 25.60%
Annual Return 2018 rr_AnnualReturn2018 (5.99%)
Annual Return 2019 rr_AnnualReturn2019 25.95%
Annual Return 2020 rr_AnnualReturn2020 18.06%
Annual Return 2021 rr_AnnualReturn2021 30.69%
Annual Return 2022 rr_AnnualReturn2022 (14.48%)
Annual Return 2023 rr_AnnualReturn2023 22.93%
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 22.93%
5 Years rr_AverageAnnualReturnYear05 15.36%
Since Inception rr_AverageAnnualReturnSinceInception 14.09%
Inception Date rr_AverageAnnualReturnInceptionDate Sep. 27, 2016
Abacus FCF Leaders ETF | Abacus FCF Leaders ETF | After Taxes on Distributions  
Prospectus [Line Items] rr_ProspectusLineItems  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 22.63%
5 Years rr_AverageAnnualReturnYear05 14.64%
Since Inception rr_AverageAnnualReturnSinceInception 13.56%
Abacus FCF Leaders ETF | Abacus FCF Leaders ETF | After Taxes on Distributions and Sales  
Prospectus [Line Items] rr_ProspectusLineItems  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Shares
1 Year rr_AverageAnnualReturnYear01 13.75%
5 Years rr_AverageAnnualReturnYear05 12.31%
Since Inception rr_AverageAnnualReturnSinceInception 11.54%
[1] The management fee is structured as a “unified fee,” pursuant to which the Fund’s investment adviser pays all
expenses of the Fund, except for the management fee, payments under the Fund’s Rule 12b-1 plan, brokerage
expenses, acquired fund fees and expenses, taxes, interest (including borrowing costs and dividend expenses on
securities sold short), litigation expenses and other extraordinary expenses (including litigation to which the Trust or
the Fund may be a party and indemnification of the Trustees and officers with respect thereto).
[2] “Management Fee” has been restated to reflect current fees.
[3] “Management Fee” has been restated to reflect current fees.
[4] The management fee is structured as a “unified fee,” pursuant to which the Fund’s investment adviser pays all
expenses of the Fund, except for the management fee, payments under the Fund’s Rule 12b-1 plan, brokerage
expenses, acquired fund fees and expenses, taxes, interest (including borrowing costs and dividend expenses on
securities sold short), litigation expenses and other extraordinary expenses (including litigation to which the Trust or
the Fund may be a party and indemnification of the Trustees and officers with respect thereto).