v3.26.3
State Street SPDR SP Kensho Smart Mobility ETF Average Annual Total Returns
12 Months Ended 28 Months Ended 60 Months Ended 65 Months Ended 86 Months Ended 96 Months Ended 118 Months Ended 120 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
S&P Kensho Smart Transportation Index (reflects no deduction for fees, expenses or taxes other than withholding taxes on reinvested dividends)[Member]                    
Prospectus [Line Items]                    
Average Annual Return, Percent   18.59%   (8.85%)     2.34%      
S&P 500 Index (reflects no deduction for fees, expenses or taxes)[Member]                    
Prospectus [Line Items]                    
Average Annual Return, Percent   17.88% 21.76% 14.42% 16.50% 15.33% 14.27% 15.31% 15.77% 14.82%
State Street SPDR SP Kensho Smart Mobility ETF                    
Prospectus [Line Items]                    
Average Annual Return, Percent   19.56%   (7.53%)     3.28%      
Performance Inception Date Dec. 26, 2017                  
State Street SPDR SP Kensho Smart Mobility ETF | After Taxes on Distributions                    
Prospectus [Line Items]                    
Average Annual Return, Percent   18.74%   (8.20%)     2.62%      
State Street SPDR SP Kensho Smart Mobility ETF | After Taxes on Distributions and Sales                    
Prospectus [Line Items]                    
Average Annual Return, Percent   11.72%   (5.70%)     2.33%