v3.26.1
GMO U.S. Treasury Fund Expense Example - GMO U.S. Treasury Fund
Feb. 28, 2026
USD ($)
Class VI  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 9
Expense Example, with Redemption, 3 Years 36
Expense Example, with Redemption, 5 Years 65
Expense Example, with Redemption, 10 Years 151
Class R6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 9
Expense Example, with Redemption, 3 Years 36
Expense Example, with Redemption, 5 Years 65
Expense Example, with Redemption, 10 Years 151
Class I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 25
Expense Example, with Redemption, 3 Years 84
Expense Example, with Redemption, 5 Years 149
Expense Example, with Redemption, 10 Years $ 340