v3.25.1
Shareholder Report, Average Annual Return (Details)
 12 Months Ended 60 Months Ended 115 Months Ended 120 Months Ended
Mar. 31, 2025
Mar. 31, 2025
Mar. 31, 2025
Mar. 31, 2025
C000159357        
Average Annual Return [Line Items]        
Line Graph and Table Measure Name Columbia EM Core ex-China ETF      
C000101379        
Average Annual Return [Line Items]        
Line Graph and Table Measure Name Columbia India Consumer ETF      
C000088095        
Average Annual Return [Line Items]        
Line Graph and Table Measure Name Columbia Research Enhanced Emerging Economies ETF      
Without Sales Load [Member] | C000159357        
Average Annual Return [Line Items]        
Average Annual Return, Percent (2.39%) 11.24% 7.19%  
Without Sales Load [Member] | C000101379        
Average Annual Return [Line Items]        
Average Annual Return, Percent (2.93%) 19.70%   7.93%
Without Sales Load [Member] | C000088095        
Average Annual Return [Line Items]        
Average Annual Return, Percent 6.25% 3.32%   (0.85%)
MSCI Emerging Markets Index (Net)        
Average Annual Return [Line Items]        
Line Graph and Table Measure Name MSCI Emerging Markets Index (Net)      
Average Annual Return, Percent 8.09% 7.94% 5.85%  
MSCI India Index (Net)        
Average Annual Return [Line Items]        
Line Graph and Table Measure Name MSCI India Index (Net)      
Average Annual Return, Percent 1.75% 20.51%   7.84%
MSCI Emerging Markets Index (Net)        
Average Annual Return [Line Items]        
Line Graph and Table Measure Name MSCI Emerging Markets Index (Net)      
Average Annual Return, Percent 8.09% 7.94%   3.71%
Beta Thematic Emerging Markets ex-China Index        
Average Annual Return [Line Items]        
Line Graph and Table Measure Name Beta Thematic Emerging Markets ex-China Index      
Average Annual Return, Percent (2.84%) 12.36% 7.00%  
Indxx India Consumer Index        
Average Annual Return [Line Items]        
Line Graph and Table Measure Name Indxx India Consumer Index      
Average Annual Return, Percent (1.41%) 23.05%   10.02%
Combined Current and Former Indices        
Average Annual Return [Line Items]        
Line Graph and Table Measure Name Combined Current and Former Indices      
Average Annual Return, Percent 6.27% 3.77%   (0.13%)
Dow Jones Emerging Markets Consumer Titans™ Index        
Average Annual Return [Line Items]        
Line Graph and Table Measure Name Dow Jones Emerging Markets Consumer Titans™ Index      
Average Annual Return, Percent 8.00% 4.11%   0.03%
Beta Advantage® Research Enhanced Solactive Emerging Economies Index        
Average Annual Return [Line Items]        
Average Annual Return, Percent       4.16%