v3.26.1
Expense Example - State Street SPDR UC Investments 90 10 Endowment Strategy Index ETF - State Street SPDR UC Investments 90/10 Endowment Strategy Index ETF
Sep. 01, 2026
USD ($)
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 6
Expense Example, with Redemption, 3 Years $ 19