v3.25.4
First Trust RiverFront Dynamic Developed International ETF Average Annual Total Returns
12 Months Ended 60 Months Ended 117 Months Ended
Oct. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
MSCI EAFE Index (reflects no deduction for fees, expenses or taxes)[Member]        
Prospectus [Line Items]        
Average Annual Return, Percent   31.22% 8.92% 8.66%
First Trust RiverFront Dynamic Developed International ETF        
Prospectus [Line Items]        
Average Annual Return, Percent   36.04% 8.71% 8.19%
Performance Inception Date Apr. 13, 2016      
First Trust RiverFront Dynamic Developed International ETF | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Percent   34.02% 6.99% 6.84%
First Trust RiverFront Dynamic Developed International ETF | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Percent   21.24% 5.94% 5.88%