S000053131 [Member] Average Annual Total Returns - UBS Select Government Institutional Fund |
12 Months Ended | 60 Months Ended | 101 Months Ended |
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2024 |
Dec. 31, 2024 |
|
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 5.10% | 2.38% | 1.95% |
| Performance Inception Date | Jul. 26, 2016 |