v3.25.2
SPDR SSGA My2031 Municipal Bond ETF Expense Example - SPDR SSGA My2031 Municipal Bond ETF - SPDR SSGA My2031 Municipal Bond ETF
Sep. 10, 2025
USD ($)
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 20
Expense Example, with Redemption, 3 Years $ 64