v3.26.1
GMO Emerging Country Debt Fund Expense Example, No Redemption - GMO Emerging Country Debt Fund
Feb. 28, 2026
USD ($)
Class III  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 138
Expense Example, No Redemption, 3 Years 272
Expense Example, No Redemption, 5 Years 418
Expense Example, No Redemption, 10 Years 843
Class IV  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 133
Expense Example, No Redemption, 3 Years 256
Expense Example, No Redemption, 5 Years 391
Expense Example, No Redemption, 10 Years 783
Class VI  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 129
Expense Example, No Redemption, 3 Years 244
Expense Example, No Redemption, 5 Years 369
Expense Example, No Redemption, 10 Years $ 735