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State Street SPDR SP Aerospace and Defense 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
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 Aerospace & Defense Select Industry Index (reflects no deduction for fees, expenses or taxes)[Member]                  
Prospectus [Line Items]                  
Average Annual Return, Percent 46.79%   17.10%           17.69%
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 Aerospace and Defense ETF                  
Prospectus [Line Items]                  
Average Annual Return, Percent 46.21%   16.71%           17.28%
State Street SPDR SP Aerospace and Defense ETF | After Taxes on Distributions                  
Prospectus [Line Items]                  
Average Annual Return, Percent 46.05%   16.54%           17.06%
State Street SPDR SP Aerospace and Defense ETF | After Taxes on Distributions and Sales                  
Prospectus [Line Items]                  
Average Annual Return, Percent 27.44%   13.49%           14.72%