v3.26.1
GMO U.S. Equity Fund Expense Example - GMO U.S. Equity Fund
Feb. 28, 2026
USD ($)
Class III  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 50
Expense Example, with Redemption, 3 Years 172
Expense Example, with Redemption, 5 Years 306
Expense Example, with Redemption, 10 Years 695
Class IV  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 45
Expense Example, with Redemption, 3 Years 156
Expense Example, with Redemption, 5 Years 278
Expense Example, with Redemption, 10 Years 634
Class V  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 44
Expense Example, with Redemption, 3 Years 153
Expense Example, with Redemption, 5 Years 273
Expense Example, with Redemption, 10 Years 621
Class VI  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 41
Expense Example, with Redemption, 3 Years 144
Expense Example, with Redemption, 5 Years 256
Expense Example, with Redemption, 10 Years 585
Class R6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 50
Expense Example, with Redemption, 3 Years 172
Expense Example, with Redemption, 5 Years 306
Expense Example, with Redemption, 10 Years 695
Class I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 65
Expense Example, with Redemption, 3 Years 220
Expense Example, with Redemption, 5 Years 388
Expense Example, with Redemption, 10 Years $ 876