v3.26.3
Shareholder Report, Average Annual Return (Details)
 12 Months Ended 60 Months Ended 120 Months Ended
Aug. 31, 2026
Aug. 31, 2026
Aug. 31, 2026
C000143790      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name SSILX with load    
Average Annual Return, Percent 22.40% 10.63% 8.70%
C000143792      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name SSIPX    
C000143793      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name SSIQX    
C000014139      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name SSAIX    
C000014159      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name SVSPX    
Without Sales Load [Member] | C000143790      
Average Annual Return [Line Items]      
Average Annual Return, Percent 29.15% 11.84% 9.30%
Without Sales Load [Member] | C000143792      
Average Annual Return [Line Items]      
Average Annual Return, Percent 29.65% 12.79% 9.97%
Without Sales Load [Member] | C000143793      
Average Annual Return [Line Items]      
Average Annual Return, Percent 29.67% 12.88% 10.05%
Without Sales Load [Member] | C000014139      
Average Annual Return [Line Items]      
Average Annual Return, Percent 29.33% 12.60% 9.79%
Without Sales Load [Member] | C000014159      
Average Annual Return [Line Items]      
Average Annual Return, Percent 20.19% 12.62% 15.23%
SSGA Index: MSCI All Country World ex USA Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name MSCI All Country World ex USA Index    
Average Annual Return, Percent 27.35% 9.37% 9.64%
SSGA Index: MSCI All Country World ex USA Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name MSCI All Country World ex USA Index    
Average Annual Return, Percent 27.35% 9.37% 9.64%
SSGA Index: MSCI All Country World ex USA Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name MSCI All Country World ex USA Index    
Average Annual Return, Percent 27.35% 9.37% 9.64%
SSGA Index: MSCI All Country World ex USA Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name MSCI All Country World ex USA Index    
Average Annual Return, Percent 27.35% 9.37% 9.64%
SPDR ETFs Index: S&P 500 Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name S&P 500 Index    
Average Annual Return, Percent 20.38% 12.79% 15.37%
SSGA Index: MSCI EAFE Net Dividend Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name MSCI EAFE Net Dividend Index    
Average Annual Return, Percent 21.62% 9.35% 9.54%
SSGA Index: MSCI EAFE Net Dividend Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name MSCI EAFE Net Dividend Index    
Average Annual Return, Percent 21.62% 9.35% 9.54%
SSGA Index: MSCI EAFE Net Dividend Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name MSCI EAFE Net Dividend Index    
Average Annual Return, Percent 21.62% 9.35% 9.54%
SSGA Index: MSCI EAFE Net Dividend Index      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name MSCI EAFE Net Dividend Index    
Average Annual Return, Percent 21.62% 9.35% 9.54%