v3.26.1
Expense Example, No Redemption - Parametric International Funds Classess - A,C,I,R, & R6 - Parametric Emerging Markets Fund
Jan. 31, 2026
USD ($)
Class A  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 664
Expense Example, No Redemption, 3 Years 981
Expense Example, No Redemption, 5 Years 1,320
Expense Example, No Redemption, 10 Years 2,274
Class C  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 222
Expense Example, No Redemption, 3 Years 710
Expense Example, No Redemption, 5 Years 1,224
Expense Example, No Redemption, 10 Years 2,449
Class I  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 121
Expense Example, No Redemption, 3 Years 403
Expense Example, No Redemption, 5 Years 707
Expense Example, No Redemption, 10 Years 1,569
Class R6  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 114
Expense Example, No Redemption, 3 Years 382
Expense Example, No Redemption, 5 Years 669
Expense Example, No Redemption, 10 Years $ 1,489