Class Abacus FCF Innovation Leaders ETF - C000222767 Abacus FCF Innovation Leaders ETF Class Abacus FCF International Leaders ETF - C000180511 Abacus FCF International Leaders ETF Class Abacus FCF Leaders ETF - C000172974 Abacus FCF Leaders ETF Class Abacus FCF Real Assets Leaders ETF - C000232424 Abacus FCF Real Assets Leaders ETF Class Abacus FCF Small Cap Leaders ETF - C000251044 Abacus FCF Small Cap Leaders ETF Class Abacus Flexible Bond Leaders ETF - C000222768 Abacus Flexible Bond Leaders ETF Broad Based Index:1C000222767-S&P 500 TR_1 S&P 500 TR [Member] Additional Index:2C000222767-Russell 1000 Growth Total Return Russell 1000 Growth Total Return [Member] Additional Index:3C000222767-Abacus FCF Innovation Leaders Index Abacus FCF Innovation Leaders Index [Member] Largest Holding:4C000222767-Apple, Inc. Apple, Inc. [Member] Largest Holding:5C000222767-NVIDIA Corp. NVIDIA Corp. [Member] Largest Holding:6C000222767-Broadcom, Inc. Broadcom, Inc. [Member] Largest Holding:7C000222767-Mount Vernon Liquid Assets Portfolio, LLC Mount Vernon Liquid Assets Portfolio, LLC [Member] Largest Holding:8C000222767-AbbVie, Inc. AbbVie, Inc. [Member] Largest Holding:9C000222767-Airbnb, Inc. Airbnb, Inc. [Member] Largest Holding:10C000222767-Snowflake, Inc. Snowflake, Inc. [Member] Largest Holding:11C000222767-Bristol-Myers Squibb Co. Bristol-Myers Squibb Co. [Member] Largest Holding:12C000222767-Fortinet, Inc. Fortinet, Inc. [Member] Largest Holding:13C000222767-Adobe, Inc. Adobe, Inc. [Member] Industry Sector:14C000222767-Technology Technology [Member] Industry Sector:15C000222767-Communications Communications [Member] Industry Sector:16C000222767-Health Care Health Care [Member] Industry Sector:17C000222767-Financials Financials [Member] Industry Sector:18C000222767-Consumer Discretionary Consumer Discretionary [Member] Industry Sector:19C000222767-Industrials Industrials [Member] Industry Sector:20C000222767-Cash & Other Cash & Other [Member] Broad Based Index:21C000180511-MSCI AC WORLD INDEX ex USA Net (USD)_ MSCI AC WORLD INDEX ex USA Net (USD) [Member] Additional Index:22C000180511-MSCI AC WORLD INDEX ex USA GROWTH Net (USD) MSCI AC WORLD INDEX ex USA GROWTH Net (USD) [Member] Largest Holding:23C000180511-Mount Vernon Liquid Assets Portfolio, LLC Mount Vernon Liquid Assets Portfolio, LLC [Member] Largest Holding:24C000180511-Taiwan Semiconductor Manufacturing Co. Ltd. Taiwan Semiconductor Manufacturing Co. Ltd. [Member] Largest Holding:25C000180511-ASML Holding NV ASML Holding NV [Member] Largest Holding:26C000180511-SK hynix, Inc. SK hynix, Inc. [Member] Largest Holding:27C000180511-Advantest Corp. Advantest Corp. [Member] Largest Holding:28C000180511-Novartis AG Novartis AG [Member] Largest Holding:29C000180511-Rolls-Royce Holdings PLC Rolls-Royce Holdings PLC [Member] Largest Holding:30C000180511-Tencent Holdings Ltd. Tencent Holdings Ltd. [Member] Largest Holding:31C000180511-Roche Holding AG Roche Holding AG [Member] Largest Holding:32C000180511-Siemens Energy AG Siemens Energy AG [Member] C000180511-China China C000180511-Switzerland Switzerland C000180511-United Kingdom United Kingdom C000180511-Japan Japan C000180511-Ireland Ireland C000180511-South Korea South Korea C000180511-Taiwan Taiwan C000180511-Netherlands Netherlands C000180511-Germany Germany Other Category:42C000180511-Cash & Other_1 Cash & Other [Member] Industry Sector:43C000180511-Technology Technology [Member] Industry Sector:44C000180511-Industrials Industrials [Member] Industry Sector:45C000180511-Communications Communications [Member] Industry Sector:46C000180511-Consumer Discretionary Consumer Discretionary [Member] Industry Sector:47C000180511-Materials Materials [Member] Industry Sector:48C000180511-Health Care Health Care [Member] Industry Sector:49C000180511-Consumer Staples Consumer Staples [Member] Industry Sector:50C000180511-Energy Energy [Member] Industry Sector:51C000180511-Financials Financials [Member] Industry Sector:52C000180511-Cash & Other Cash & Other [Member] Broad Based Index:53C000172974-Russell 3000 Total Return_ Russell 3000 Total Return [Member] Largest Holding:54C000172974-Apple, Inc. Apple, Inc. [Member] Largest Holding:55C000172974-NVIDIA Corp. NVIDIA Corp. [Member] Largest Holding:56C000172974-Eli Lilly & Co. Eli Lilly & Co. [Member] Largest Holding:57C000172974-Bristol-Myers Squibb Co. Bristol-Myers Squibb Co. [Member] Largest Holding:58C000172974-AbbVie, Inc. AbbVie, Inc. [Member] Largest Holding:59C000172974-GE Vernova, Inc. GE Vernova, Inc. [Member] Largest Holding:60C000172974-Lam Research Corp. Lam Research Corp. [Member] Largest Holding:61C000172974-Cheniere Energy Partners LP Cheniere Energy Partners LP [Member] Largest Holding:62C000172974-Broadcom, Inc. Broadcom, Inc. [Member] Largest Holding:63C000172974-KLA Corp. KLA Corp. [Member] Industry Sector:64C000172974-Technology Technology [Member] Industry Sector:65C000172974-Health Care Health Care [Member] Industry Sector:66C000172974-Industrials Industrials [Member] Industry Sector:67C000172974-Energy Energy [Member] Industry Sector:68C000172974-Communications Communications [Member] Industry Sector:69C000172974-Consumer Staples Consumer Staples [Member] Industry Sector:70C000172974-Financials Financials [Member] Industry Sector:71C000172974-Materials Materials [Member] Industry Sector:72C000172974-Consumer Discretionary Consumer Discretionary [Member] Industry Sector:73C000172974-Cash & Other Cash & Other [Member] Broad Based Index:74C000232424-S&P 500 TR_1 S&P 500 TR [Member] Additional Index:75C000232424-S&P Real Assets Equity Index (Net TR) S&P Real Assets Equity Index (Net TR) [Member] Additional Index:76C000232424-Abacus FCF Real Assets Leaders Index Abacus FCF Real Assets Leaders Index [Member] Largest Holding:77C000232424-Mount Vernon Liquid Assets Portfolio, LLC Mount Vernon Liquid Assets Portfolio, LLC [Member] Largest Holding:78C000232424-Cheniere Energy Partners LP Cheniere Energy Partners LP [Member] Largest Holding:79C000232424-Petroleo Brasileiro SA - Petrobras Petroleo Brasileiro SA - Petrobras [Member] Largest Holding:80C000232424-APA Corp. APA Corp. [Member] Largest Holding:81C000232424-Simon Property Group, Inc. Simon Property Group, Inc. [Member] Largest Holding:82C000232424-Hitachi Ltd. Hitachi Ltd. [Member] Largest Holding:83C000232424-Archer-Daniels-Midland Co. Archer-Daniels-Midland Co. [Member] Largest Holding:84C000232424-Western Midstream Partners LP Western Midstream Partners LP [Member] Largest Holding:85C000232424-BHP Group Ltd. BHP Group Ltd. [Member] Largest Holding:86C000232424-Antero Midstream Corp. Antero Midstream Corp. [Member] Industry Sector:87C000232424-Energy Energy [Member] Industry Sector:88C000232424-Industrials Industrials [Member] Industry Sector:89C000232424-Materials Materials [Member] Industry Sector:90C000232424-Real Estate Real Estate [Member] Industry Sector:91C000232424-Consumer Staples Consumer Staples [Member] Industry Sector:92C000232424-Consumer Discretionary Consumer Discretionary [Member] Industry Sector:93C000232424-Utilities Utilities [Member] Industry Sector:94C000232424-Cash & Other Cash & Other [Member] Broad Based Index:95C000251044-S&P 500 TR_1 S&P 500 TR [Member] Additional Index:96C000251044-Russell 2000 Total Return Index Russell 2000 Total Return Index [Member] Additional Index:97C000251044-Abacus FCF Small Cap Leaders Index Abacus FCF Small Cap Leaders Index [Member] Largest Holding:98C000251044-Argan, Inc. Argan, Inc. [Member] Largest Holding:99C000251044-Enova International, Inc. Enova International, Inc. [Member] Largest Holding:100C000251044-Oscar Health, Inc. Oscar Health, Inc. [Member] Largest Holding:101C000251044-Artisan Partners Asset Management, Inc. Artisan Partners Asset Management, Inc. [Member] Largest Holding:102C000251044-Collegium Pharmaceutical, Inc. Collegium Pharmaceutical, Inc. [Member] Largest Holding:103C000251044-Healthcare Services Group, Inc. Healthcare Services Group, Inc. [Member] Largest Holding:104C000251044-Harmony Biosciences Holdings, Inc. Harmony Biosciences Holdings, Inc. [Member] Largest Holding:105C000251044-Qualys, Inc. Qualys, Inc. [Member] Largest Holding:106C000251044-Kontoor Brands, Inc. Kontoor Brands, Inc. [Member] Largest Holding:107C000251044-Progyny, Inc. Progyny, Inc. [Member] Industry Sector:108C000251044-Health Care Health Care [Member] Industry Sector:109C000251044-Financials Financials [Member] Industry Sector:110C000251044-Technology Technology [Member] Industry Sector:111C000251044-Industrials Industrials [Member] Industry Sector:112C000251044-Consumer Discretionary Consumer Discretionary [Member] Industry Sector:113C000251044-Materials Materials [Member] Industry Sector:114C000251044-Energy Energy [Member] Industry Sector:115C000251044-Consumer Staples Consumer Staples [Member] Industry Sector:116C000251044-Communications Communications [Member] Industry Sector:117C000251044-Cash & Other Cash & Other [Member] Additional Index:118C000222768-Abacus Flexible Bond Leaders Index [Member] Abacus Flexible Bond Leaders Index [Member] Broad Based Index:119C000222768-Bloomberg US Aggregate Bond Index_ Bloomberg US Aggregate Bond Index [Member] Largest Holding:120C000222768-Mount Vernon Liquid Assets Portfolio, LLC Mount Vernon Liquid Assets Portfolio, LLC [Member] Largest Holding:121C000222768-Vanguard Short-Term Treasury ETF Vanguard Short-Term Treasury ETF [Member] Largest Holding:122C000222768-iShares MBS ETF iShares MBS ETF [Member] Largest Holding:123C000222768-iShares iBoxx USD Investment Grade Corporate Bond ETF iShares iBoxx USD Investment Grade Corporate Bond ETF [Member] Largest Holding:124C000222768-iShares 10-20 Year Treasury Bond ETF iShares 10-20 Year Treasury Bond ETF [Member] Largest Holding:125C000222768-VanEck J. P. Morgan EM Local Currency Bond ETF VanEck J. P. Morgan EM Local Currency Bond ETF [Member] Largest Holding:126C000222768-iShares 0-5 Year High Yield Corporate Bond ETF iShares 0-5 Year High Yield Corporate Bond ETF [Member] Largest Holding:127C000222768-iShares J.P. Morgan USD Emerging Markets Bond ETF iShares J.P. Morgan USD Emerging Markets Bond ETF [Member] C000222768-Exchange Traded Funds_ Exchange Traded Funds [Member] C000222768-Cash & Other_ Cash & Other [Member] Net Assets Investment Company Portfolio Turnover Portfolio Turnover Commodity Index Linked Notes [Member] Commodity Index Linked Notes Sovereign Debt Securities [Member] Sovereign Debt Securities Convertible Debt Securities [Member] Convertible Debt Securities Corporate Debt Securities [Member] Corporate Debt Securities Corporate Note Securities [Member] Corporate Note Securities Corporate Bond Securities [Member] Corporate Bond Securities Fixed Income Investments [Member] Fixed Income Investments Securities Investment [Member] Securities Investment Other Aggregated Investments [Member] Other Aggregated Investments Real Estate Sector [Member] Real Estate Sector Standard Poors 500 Index [Member] Standard Poors 500 Index Nasdaq Composite Index [Member] Nasdaq Composite Index Equity Securities Industry [Member] Equity Securities Industry Equity Securities [Member] Equity Securities Dow Jones Industrial Average [Member] Dow Jones Industrial Average Construction Sector [Member] Construction Sector Automotive Sector [Member] Automotive Sector Transportation Sector [Member] Transportation Sector Aerospace Sector [Member] Aerospace Sector Consumer Sector [Member] Consumer Sector Chemicals Sector [Member] Chemicals Sector Insurance Sector [Member] Insurance Sector Cash [Member] Cash Asset Backed Securities [Member] Asset Backed Securities Container And PackagingSector [Member] Container And PackagingSector Investment Type [Axis] Asset Class US Treasury Securities [Member] US Treasury Securities Mortgage Backed Securities [Member] Mortgage Backed Securities Investment Type Categorization [Member] Investment Type Categorization Entertainment Sector [Member] Entertainment Sector Food And Beverage Sector [Member] Food And Beverage Sector Financial Services Sector [Member] Financial Services Sector Healthcare Sector [Member] Healthcare Sector Energy Sector [Member] Energy Sector Technology Sector [Member] Technology Sector Government Sector [Member] Government Sector No Trading Symbol