RMA Program [Member] Annual Total Returns |
12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| UBS RMA Government Money Market Fund | UBS RMA Government Money Market Fund | |||||||||
| Prospectus [Line Items] | |||||||||
| Annual Return [Percent] | 3.61% | 4.56% | 4.48% | 1.22% | 0.01% | 0.20% | 1.77% | 1.38% | 0.42% |