State Street Nuveen Municipal Bond ETF Investment Objectives and Goals - State Street Nuveen Municipal Bond ETF |
Jun. 30, 2026 |
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| Prospectus [Line Items] | |
| Risk/Return [Heading] | <span style="color:#000000;font-family:Arial;font-size:18pt;font-weight:bold;">State Street</span><span style="color:#000000;font-family:Arial;font-size:11.5pt;font-weight:bold;position:relative;top:-5pt;">®</span><span style="color:#000000;font-family:Arial;font-size:18pt;font-weight:bold;"> Nuveen Municipal Bond ETF</span> |
| Objective [Heading] | <span style="color:#000000;font-family:Arial;font-size:10.5pt;font-weight:bold;margin-left:10.5pt;text-transform:uppercase;">Investment Objective</span> |
| Objective, Primary [Text Block] | The State Street Nuveen Municipal Bond ETF (the “Fund”) seeks to provide current income that is exempt from regular federal income taxes. |
| Objective, Secondary [Text Block] | Capital appreciation is a secondary objective when consistent with the Fund's primary objective. |