S000052307 [Member] Average Annual Total Returns - UBS Prime Preferred Fund |
12 Months Ended | 60 Months Ended | 107 Months Ended |
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2024 |
Dec. 31, 2024 |
|
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 5.25% | 2.51% | 2.03% |
| Performance Inception Date | Jan. 19, 2016 |