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First Trust International Developed Capital Strength ETF Annual Total Returns
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
First Trust International Developed Capital Strength ETF | First Trust International Developed Capital Strength ETF          
Prospectus [Line Items]          
Annual Return [Percent] 20.86% 2.44% 18.15% (19.43%) 19.80%