v3.26.1
Expense Example - UBS Liquid Reserves Fund
Aug. 12, 2026
USD ($)
Ultra Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 8
Expense Example, with Redemption, 3 Years 79
Institutional Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 18
Expense Example, with Redemption, 3 Years 89
Preferred Shares  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 14
Expense Example, with Redemption, 3 Years $ 85