v3.25.4
Expense Example - State Street Stablecoin Reserves Money Market Fund
Mar. 02, 2026
USD ($)
Preferred  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 12
Expense Example, with Redemption, 3 Years 39
Capital  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 18
Expense Example, with Redemption, 3 Years $ 58