v3.26.1
Average Annual Total Returns - Eaton Vance Focused Opportunities Funds
 12 Months Ended 60 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Eaton Vance Focused Growth Opportunities Fund | S&P 500 Index (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 17.88% 14.42% 14.81%
Eaton Vance Focused Growth Opportunities Fund | Russell 1000 Growth Index (reflects no deductions for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 18.56% 15.31% 18.11%
Eaton Vance Focused Growth Opportunities Fund | Class A      
Prospectus [Line Items]      
Average Annual Return, Percent 8.18% 10.11% 14.66%
Eaton Vance Focused Growth Opportunities Fund | Class A | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 2.75% 6.81% 12.41%
Eaton Vance Focused Growth Opportunities Fund | Class A | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 8.79% 7.51% 11.93%
Eaton Vance Focused Growth Opportunities Fund | Class C      
Prospectus [Line Items]      
Average Annual Return, Percent 12.49% 10.48% 14.59%
Eaton Vance Focused Growth Opportunities Fund | Class I      
Prospectus [Line Items]      
Average Annual Return, Percent 14.47% 11.58% 15.56%
Eaton Vance Focused Value Opportunities Fund | Russell 3000 Index (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 17.15% 13.14% 14.27%
Eaton Vance Focused Value Opportunities Fund | Russell 1000 Value Index (reflects no deduction for fees, expenses or taxes)      
Prospectus [Line Items]      
Average Annual Return, Percent 15.91% 11.32% 10.52%
Eaton Vance Focused Value Opportunities Fund | Class A      
Prospectus [Line Items]      
Average Annual Return, Percent 4.78% 8.66% 9.52%
Eaton Vance Focused Value Opportunities Fund | Class A | After Taxes on Distributions      
Prospectus [Line Items]      
Average Annual Return, Percent 3.50% 7.23% 8.13%
Eaton Vance Focused Value Opportunities Fund | Class A | After Taxes on Distributions and Sales      
Prospectus [Line Items]      
Average Annual Return, Percent 3.72% 6.62% 7.45%
Eaton Vance Focused Value Opportunities Fund | Class C      
Prospectus [Line Items]      
Average Annual Return, Percent 8.74% 9.02% 9.46%
Eaton Vance Focused Value Opportunities Fund | Class I      
Prospectus [Line Items]      
Average Annual Return, Percent 10.90% 10.12% 10.40%