v3.26.1
Average Annual Total Returns
12 Months Ended 28 Months Ended 52 Months Ended
Apr. 30, 2026
Dec. 31, 2025
Dec. 01, 2025
Dec. 31, 2025
Dec. 31, 2025
S&P 500® Index (reflects no deduction for fees, expenses, or taxes)          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] S&P 500® Index(reflects no deduction for fees, expenses, or taxes)        
Average Annual Return, Percent   17.88% 13.26% 21.62%  
Regulatory Benchmark S&P 500® Index (reflects no deduction for fees, expenses, or taxes)          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Regulatory BenchmarkS&P 500® Index (reflects no deduction for fees, expenses, or taxes)        
Average Annual Return, Percent   17.88% 13.26%   11.78%
Strategy Benchmark Russell 2000® Total Return Index (reflects no deduction for fees, expenses, or taxes)          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Strategy BenchmarkRussell 2000® Total Return Index (reflects no deduction for fees, expenses, or taxes)        
Average Annual Return, Percent   12.81% 4.92%    
Strategy Benchmark Russell 2500® Total Return Index (reflects no deduction for fees, expenses, or taxes)          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Strategy BenchmarkRussell 2500® Total Return Index (reflects no deduction for fees, expenses, or taxes)        
Average Annual Return, Percent   11.91%     4.68%
Bahl & Gaynor Dividend ETF Class          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return Before Taxes        
Average Annual Return, Percent   13.62% 10.36%    
Performance Inception Date Dec. 11, 2024        
Bahl & Gaynor Dividend ETF Class | After Taxes on Distributions          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions        
Average Annual Return, Percent   13.29% 10.03%    
Bahl & Gaynor Dividend ETF Class | After Taxes on Distributions and Sales          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares        
Average Annual Return, Percent   8.26% 7.87%    
Bahl & Gaynor Income Growth ETF Class          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return Before Taxes        
Average Annual Return, Percent   12.39%   14.24%  
Performance Inception Date Sep. 14, 2023        
Bahl & Gaynor Income Growth ETF Class | After Taxes on Distributions          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions        
Average Annual Return, Percent   11.86%   13.66%  
Bahl & Gaynor Income Growth ETF Class | After Taxes on Distributions and Sales          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares        
Average Annual Return, Percent   7.68%   11.00%  
Bahl & Gaynor Small Cap Dividend ETF Class          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return Before Taxes        
Average Annual Return, Percent   3.15% (3.75%)    
Performance Inception Date Dec. 11, 2024        
Bahl & Gaynor Small Cap Dividend ETF Class | After Taxes on Distributions          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions        
Average Annual Return, Percent   2.99% (3.90%)    
Bahl & Gaynor Small Cap Dividend ETF Class | After Taxes on Distributions and Sales          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares        
Average Annual Return, Percent   1.97% (2.86%)    
AAM Bahl & Gaynor Small/Mid Cap Income Growth ETF Class          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return Before Taxes        
Average Annual Return, Percent   0.89%     5.16%
Performance Inception Date Aug. 25, 2021        
AAM Bahl & Gaynor Small/Mid Cap Income Growth ETF Class | After Taxes on Distributions          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions        
Average Annual Return, Percent   0.46%     4.69%
AAM Bahl & Gaynor Small/Mid Cap Income Growth ETF Class | After Taxes on Distributions and Sales          
Prospectus [Line Items]          
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Fund Shares        
Average Annual Return, Percent   0.84%     3.96%