S000084283 [Member] Performance Management - UBS Select 100% US Treasury Preferred Fund |
Apr. 30, 2025 |
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| Prospectus [Line Items] | |
| Bar Chart and Performance Table [Heading] | Performance |
| Performance Narrative [Text Block] | There is no performance information quoted for the fund as the fund has not yet operated for a full calendar year as of the date of this prospectus.
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| Performance One Year or Less [Text] | There is no performance information quoted for the fund as the fund has not yet operated for a full calendar year as of the date of this prospectus. |