Investment Risks - Abacus Flexible Bond Leaders ETF	Jun. 06, 2025
Underlying ETFs Risk Member
Prospectus [Line Items]
Risk [Text Block]	Underlying ETFs Risk. In seeking to track the Underlying Index, the Fund invests substantially all of its assets in Underlying ETFs. Accordingly, the Fund’s investment performance is directly related to the performance of the Underlying ETFs. The Fund’s net asset value (or “NAV”) will change with changes in the value of the Underlying ETFs based on their market valuations. An investment in the Fund will entail more costs and expenses than a direct investment in the Underlying ETFs. As the Underlying ETFs, or the Fund’s allocations among the Underlying ETFs, change from time to time, or to the extent that the total annual fund operating expenses of any Underlying ETF changes, the weighted average operating expenses borne by the Fund may increase or decrease.
Interest Rate Risk 1 Member
Prospectus [Line Items]
Risk [Text Block]	Interest Rate Risk. During periods of rising interest rates, the market value of the Fund’s securities will tend to be lower than prevailing market rates and in periods of falling interest rates, the market value of an Underlying ETF’s securities will tend to be higher. An Underlying ETF’s (and therefore the Fund’s) yield will vary as short-term securities in its portfolio mature and the proceeds are reinvested in securities with different interest rates. In general, securities with longer maturities or durations are more sensitive to interest rate changes. A general rise in interest rates may cause investors to move out of fixed income securities on a large scale, which could adversely affect the price and liquidity of fixed income securities and could also result in increased redemptions for an Underlying ETF. During periods when inflation rates are high or rising, or during periods of low interest rates, an Underlying ETF (and therefore the Fund) may be subject to a greater risk of rising interest rates. Changing interest rates may have unpredictable effects on the markets and the Fund’s investments, may result in heightened market volatility, may impact the liquidity of fixed-income securities and of the Fund, and may detract from Fund performance. Adjustable-rate instruments also react to interest rate changes in a similar manner, although generally to a lesser degree (depending, however, on the characteristics of the reset terms, including the index chosen, frequency of reset and reset caps or floors, among other factors).
Credit (Or Default) Risk Member
Prospectus [Line Items]
Risk [Text Block]	Credit (or Default) Risk. The inability or unwillingness of an issuer or guarantor of a fixed-income security, or a counterparty to a repurchase or other transaction, to meet its principal or interest payments or other financial obligations in a timely manner will adversely affect the value of an Underlying ETF’s (and therefore the Fund’s) investments and its returns. Changes in an issuer’s financial strength, the market’s perception of an issuer’s creditworthiness, or in the credit rating of the issuer or the security may also affect the value of an Underlying ETF’s investment in that issuer.
Debt Extension Risk Member
Prospectus [Line Items]
Risk [Text Block]	Debt Extension Risk. When interest rates rise, an issuer will exercise its right to pay principal on certain debt securities held by an Underlying Fund later than expected. This will cause the value of the security, and the Underlying ETF’s (and therefore the Fund’s) NAV, to decrease, and the Underlying ETF may lose opportunities to invest in higher yielding securities.
Prepayment (Or Call) Risk Member
Prospectus [Line Items]
Risk [Text Block]	Prepayment (or Call) Risk. An issuer could exercise its right to pay principal on callable debt securities held by an Underlying ETF earlier than expected. Issuers may be more likely to prepay when interest rates fall, when credit spreads change, or when an issuer’s credit quality improves. If this happens, an Underlying ETF (and therefore the Fund) will not benefit from the rise in the market price of the securities that normally accompanies a decline in interest rates, and will be forced to reinvest prepayment proceeds in lower yielding securities, which may reduce the Fund’s returns. An Underlying ETF may also lose any premium it paid to purchase the securities, which will impact the value of the Fund’s investments.
U.S. Government Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	U.S. Government Securities Risk is the risk that the U.S. government will not provide financial support to its agencies, instrumentalities or sponsored enterprises if it is not obligated to do so by law. Certain U.S. government securities purchased by the Fund are neither issued nor guaranteed by the U.S. Treasury and, therefore, may not be backed by the full faith and credit of the United States. The maximum potential liability of the issuers of some U.S. government securities may greatly exceed their current resources, including any legal right to support from the U.S. Treasury. It is possible that the issuers of such securities will not have the funds to meet their payment obligations in the future.
Asset-Backed And Mortgage-Backed Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Asset-Backed and Mortgage-Backed Securities Risk. Asset-backed and mortgage-backed securities may be less liquid than other bonds, and may be more sensitive than other bonds to the market’s perception of issuers and creditworthiness of payees, particularly in declining general economic conditions when concern regarding mortgagees’ ability to pay (e.g., the ability of homeowners, commercial mortgagees, consumers with student loans, automobile loans or credit card debtholders to make payments on the underlying loan pools) rises, which may result in an Underlying ETF experiencing difficulty selling or valuing these securities. In addition, these securities may not be backed by the full faith and credit of the U.S. government, have experienced extraordinary weakness and volatility at various times in recent years, and may decline quickly in the event of a substantial economic or market downturn. Those asset-backed and mortgage-backed securities that are guaranteed as to the timely payment of interest and principal by a government entity, are not guaranteed as to market price, which will fluctuate. Small movements in interest rates (both increases and decreases) may quickly and significantly reduce the value of certain asset-backed and mortgage-backed securities. An unexpectedly high rate of defaults on the mortgages held by a mortgage pool may adversely affect the value of mortgage-backed securities and could result in losses to an Underlying ETF (and therefore the Fund). Privately issued mortgage-backed securities and asset-backed securities may be less liquid than other types of securities and an Underlying ETF may be unable to sell these securities at the time or price it desires. During periods of market stress or high redemptions, an Underlying ETF may be forced to sell these securities at significantly reduced prices, resulting in losses to the Fund. Liquid privately issued mortgage-backed securities and asset-backed securities can become illiquid during periods of market stress. Privately issued mortgage-related securities are not subject to the same underwriting requirements as those with government or government-sponsored entity guarantees and, therefore, mortgage loans underlying privately issued mortgage-related securities may have less favorable collateral, credit risk, liquidity risk or other underwriting characteristics, and wider variances in interest rate, term, size, purpose and borrower characteristics. Liquidity and credit risks are even greater for mortgage pools that include subprime mortgages.
Loan Risk Member
Prospectus [Line Items]
Risk [Text Block]	Loan Risk. In addition to the risks typically associated with high-yield fixed income securities, loans may be unsecured or not fully collateralized, may be subject to restrictions on resale, may be less liquid and may trade infrequently on the secondary market. In addition, because loans settle on a delayed basis, proceeds from the sale of loans may not be available to meet an Underlying ETF's obligations for a substantial period of time after the sale of the loan, which may result in losses to the Fund.
Sovereign Debt Risk Member
Prospectus [Line Items]
Risk [Text Block]	Sovereign Debt Risk. An Underlying ETF may invest in securities issued or guaranteed by foreign governmental entities (known as sovereign debt securities). These investments are subject to the risk of payment delays or defaults, due, for example, to cash flow problems, insufficient foreign currency reserves, political considerations, large debt positions relative to the country’s economy or failure to implement economic reforms. There is no legal or bankruptcy process for collecting sovereign debt.
Foreign Investment Risk Member
Prospectus [Line Items]
Risk [Text Block]	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, an Underlying ETF’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.
Emerging Markets Risk Member
Prospectus [Line Items]
Risk [Text Block]	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 an Underlying ETF'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.
Inflation-Protected Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	Inflation-Protected Securities Risk. Interest payments on inflation-protected securities can be unpredictable and will vary as the principal and/or interest is periodically adjusted based on the rate of inflation. If the index measuring inflation falls, the interest payable on these securities will be reduced.
High Yield (Junk Bond) Securities Risk Member
Prospectus [Line Items]
Risk [Text Block]	High Yield (Junk Bond) Securities Risk. High yield securities and unrated securities of similar credit quality are considered to be speculative with respect to the issuer’s continuing ability to make principal and interest payments and are generally subject to greater levels of credit quality risk than investment grade securities. High yield securities are usually issued by companies, including smaller and medium capitalization companies, without long track records of sales and earnings, or with questionable credit strength. These 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 floating rate loans. These fixed-income securities are considered below “investment-grade.” The retail secondary market for these “junk bonds” may be less liquid than that of higher-rated fixed income securities, and adverse conditions could make it difficult at times to sell these securities or could result in lower prices than higher-rated fixed income securities. These risks can reduce the value of the shares of an Underlying ETF and the income it earns.
Valuation Risk Member
Prospectus [Line Items]
Risk [Text Block]	Valuation Risk. The sale price an Underlying ETF could receive for a portfolio security may differ from the Underlying ETF’s valuation of the security, particularly for securities that trade in low volume or volatile markets or that are valued using a fair value methodology. In addition, the value of the securities in an Underlying ETF’s portfolio (which impact the value of the Fund’s portfolio) may change on days when shareholders will not be able to purchase or sell the Fund’s shares.
Liquidity Risk Member
Prospectus [Line Items]
Risk [Text Block]	Liquidity Risk. Liquidity risk exists when a particular investment is difficult to purchase or sell. If an Underlying ETF invests in illiquid securities or its portfolio securities otherwise become illiquid, it may reduce the returns of the Underlying ETF because the Underlying ETF may be unable to sell the illiquid securities at an advantageous time or price. In the event that a Underlying ETF voluntarily or involuntarily liquidates its portfolio assets during periods of infrequent trading of its securities, the Underlying ETF may not receive full value for those assets, which will reduce the value of the Underlying ETF’s shares, and in turn, the value of the Fund’s investment in such shares.
Index-Based Strategy Risk Member
Prospectus [Line Items]
Risk [Text Block]	Index-Based Strategy Risk. The Fund is managed as an index-based fund that seeks to track the performance of the Underlying Index. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold the component securities of the Underlying Index regardless of the current or projected performance of a specific security or the relevant market as a whole. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s returns to be lower than if the Fund employed an active strategy. The Fund will seek to track the Underlying Index in all market conditions, including during adverse market conditions when other funds may seek to take temporary defensive measures (such as investing significantly in cash or cash equivalents). Accordingly, unless the Underlying Index allocates significant portions of its assets to cash and/or cash equivalents during times of adverse market or economic conditions, the Fund may be subject to a higher level of market risk during such times than other funds. Further, the Underlying Index methodology is designed to provide exposure to a limited number of securities, which results 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. Additionally, the Fund generally rebalances and reconstitutes its portfolio in accordance with the Underlying Index and, therefore, any changes to the Underlying Index’s rebalance or reconstitution schedule will typically result in corresponding changes to the Fund’s rebalance or reconstitution schedule.
Market Events Risk Member
Prospectus [Line Items]
Risk [Text Block]	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.
Concentration Risk Member
Prospectus [Line Items]
Risk [Text Block]	Concentration Risk. A fund concentrated in an industry or group of industries is likely to present more risks than a fund that is broadly diversified over several industries or groups of industries. Compared to the broad market, an individual industry or group of related industries may be more strongly affected by changes in the economic climate, broad market shifts, moves in a particular dominant stock or regulatory changes.
Derivatives Risk Member
Prospectus [Line Items]
Risk [Text Block]	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 or the Adviser, 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.
Derivatives Risk, Futures Contracts Risk Member
Prospectus [Line Items]
Risk [Text Block]	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 or the Adviser, 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.
Active And Frequent Trading Risk Member
Prospectus [Line Items]
Risk [Text Block]	Active and Frequent Trading Risk. Active and frequent trading of portfolio securities may result in increased transaction costs to the Fund, including brokerage commissions, dealer mark-ups and other transaction costs on the sale of the securities and on reinvestment in other securities, and may also result in higher taxes if Shares are held in a taxable account. In addition, in connection with the Fund’s repositioning on June 6, 2025, from a tactical high yield bond strategy, which previously allocated between high yield bond ETFs and intermediate U.S. Treasury ETFs, to a tactical intermediate core-plus bond strategy that employs a trend-following system, shareholders should be aware that the Fund will experience a higher-than-normal portfolio turnover rate. This repositioning will likely result in increased transaction costs and increased capital gains distributions to shareholders.
Index Correlation Risk Member
Prospectus [Line Items]
Risk [Text Block]	Index Correlation Risk. While the Adviser seeks to track the performance of the Underlying Index closely (i.e., to achieve a high degree of correlation with the Underlying Index), the Fund’s returns may not match or achieve a high degree of correlation with the returns of the Underlying Index due to operating expenses, transaction costs, cash flows, regulatory requirements and/or operational inefficiencies.
Index Calculation Risk Member
Prospectus [Line Items]
Risk [Text Block]	Index Calculation Risk. The Underlying Index relies on various sources of information to assess the criteria of issuers included in the Underlying Index, including information that may be based on assumptions and estimates. The Fund, the Index Provider, the Adviser, the Underlying Index calculation agent and any of their respective affiliates cannot offer assurances that the Underlying Index’s calculation methodology or sources of information will provide an accurate assessment of included issuers at any particular time.
Affiliated Index Provider Risk Member
Prospectus [Line Items]
Risk [Text Block]	Affiliated Index Provider Risk. The Index Provider is an affiliated person of the Adviser, which poses the appearance of a conflict of interest. For example, a potential conflict could arise if the Adviser, as an affiliate of the Index Provider, were to exercise undue influence with respect to regular and/or extraordinary updates to the methodology or composition of the Underlying Index, including in a manner that might improve the apparent performance of the Fund relative to the performance of the Underlying Index. Additionally, potential conflicts could arise to the extent that portfolio managers of the Adviser become aware of contemplated methodology changes or rebalance activity prior to disclosure to the public, which could facilitate “front running” on behalf of other funds or accounts managed by the Adviser with similar exposure. Although the Adviser and the Index Provider have taken steps designed to ensure that these potential conflicts are mitigated (e.g., via the adoption of policies and procedures that are designed to minimize potential conflicts of interest and the implementation of informational barriers designed to minimize the potential for the misuse of information about the Underlying Index), there can be no assurance that such measures will be successful.
ETF Risks Member
Prospectus [Line Items]
Risk [Text Block]	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 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 its affiliates, 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.
ETF Risk, Authorized Participants Concentration Risk Member
Prospectus [Line Items]
Risk [Text Block]	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.
ETF Risks, Flash Crash Risk Member
Prospectus [Line Items]
Risk [Text Block]	Flash Crash Risk. Sharp price declines in securities owned by the Fund may trigger trading halts, which may result in 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.
ETF Risks, Large Shareholder Risk Member
Prospectus [Line Items]
Risk [Text Block]	Large Shareholder Risk. Certain shareholders, including the Adviser or its affiliates, 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.
ETF Risks, Premium-Discount Risk Member
Prospectus [Line Items]
Risk [Text Block]	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.
ETF Risks, Secondary Market Trading Risk Member
Prospectus [Line Items]
Risk [Text Block]	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.
Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	An investor may lose money by investing in the Fund.

Investment Risks - Abacus Flexible Bond Leaders ETF

Jun. 06, 2025

Underlying ETFs Risk. In seeking to track the Underlying Index, the Fund invests substantially all of its assets in Underlying ETFs. Accordingly, the Fund’s investment performance is directly related to the performance of the Underlying ETFs. The Fund’s net asset value (or “NAV”) will change with changes in the value of the Underlying ETFs based on their market valuations. An investment in the Fund will entail more costs and expenses than a direct investment in the Underlying ETFs. As the Underlying ETFs, or the Fund’s allocations among the Underlying ETFs, change from time to time, or to the extent that the total annual fund operating expenses of any Underlying ETF changes, the weighted average operating expenses borne by the Fund may increase or decrease.