v3.26.1
Expense Example
Dec. 31, 2025
USD ($)
Eaton Vance Tax-Managed Growth Funds | Eaton Vance Tax-Managed Growth Fund 1.1 | Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 595
Expense Example, with Redemption, 3 Years 743
Expense Example, with Redemption, 5 Years 905
Expense Example, with Redemption, 10 Years 1,373
Eaton Vance Tax-Managed Growth Funds | Eaton Vance Tax-Managed Growth Fund 1.1 | Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 250
Expense Example, with Redemption, 3 Years 465
Expense Example, with Redemption, 5 Years 803
Expense Example, with Redemption, 10 Years 1,554
Eaton Vance Tax-Managed Growth Funds | Eaton Vance Tax-Managed Growth Fund 1.1 | Class I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 47
Expense Example, with Redemption, 3 Years 148
Expense Example, with Redemption, 5 Years 258
Expense Example, with Redemption, 10 Years 579
Eaton Vance Tax-Managed Growth Funds | Eaton Vance Tax-Managed Growth Fund 1.2 | Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 609
Expense Example, with Redemption, 3 Years 788
Expense Example, with Redemption, 5 Years 982
Expense Example, with Redemption, 10 Years 1,541
Eaton Vance Tax-Managed Growth Funds | Eaton Vance Tax-Managed Growth Fund 1.2 | Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 265
Expense Example, with Redemption, 3 Years 511
Expense Example, with Redemption, 5 Years 881
Expense Example, with Redemption, 10 Years 1,721
Eaton Vance Tax-Managed Growth Funds | Eaton Vance Tax-Managed Growth Fund 1.2 | Class I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 63
Expense Example, with Redemption, 3 Years 199
Expense Example, with Redemption, 5 Years 346
Expense Example, with Redemption, 10 Years 774
Eaton Vance Stock Fund - Clasess A, C and I | Eaton Vance Stock Fund | Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 620
Expense Example, with Redemption, 3 Years 845
Expense Example, with Redemption, 5 Years 1,088
Expense Example, with Redemption, 10 Years 1,785
Eaton Vance Stock Fund - Clasess A, C and I | Eaton Vance Stock Fund | Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 276
Expense Example, with Redemption, 3 Years 570
Expense Example, with Redemption, 5 Years 990
Expense Example, with Redemption, 10 Years 1,963
Eaton Vance Stock Fund - Clasess A, C and I | Eaton Vance Stock Fund | Class I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 75
Expense Example, with Redemption, 3 Years 259
Expense Example, with Redemption, 5 Years 460
Expense Example, with Redemption, 10 Years 1,038
Parametric Commodity Strategy Fund – Classes A and I | Parametric Commodity Strategy Fund | Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 418
Expense Example, with Redemption, 3 Years 615
Expense Example, with Redemption, 5 Years 828
Expense Example, with Redemption, 10 Years 1,442
Parametric Commodity Strategy Fund – Classes A and I | Parametric Commodity Strategy Fund | Class I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 70
Expense Example, with Redemption, 3 Years 221
Expense Example, with Redemption, 5 Years 384
Expense Example, with Redemption, 10 Years $ 859