First Trust IPOX Europe Equity Opportunities ETF Investment Objectives and Goals - First Trust IPOX Europe Equity Opportunities ETF	Sep. 30, 2025
Prospectus [Line Items]
Risk/Return [Heading]	<span style="font-family:Arial;font-size:12.60pt;font-weight:bold;">First Trust IPOX</span><span style="font-family:Arial;font-size:7.38pt;font-weight:bold;position:relative;top:-4.25pt;">®</span><span style="font-family:Arial;font-size:12.60pt;font-weight:bold;"> Europe Equity Opportunities ETF (FPXE)</span>
Objective [Heading]	<span style="color:#000000;font-family:Arial;font-size:9.90pt;font-weight:bold;">Investment Objective</span>
Objective, Primary [Text Block]	The First Trust IPOX® Europe Equity Opportunities ETF (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the IPOX®−100 Europe Index (the “Index”).