Average Annual Total Returns |
Prospectus #1
Parametric Emerging Markets Fund
MSCI Emerging Markets Index
One Year
|
Prospectus #1
Parametric Emerging Markets Fund
MSCI Emerging Markets Index
Five Years
|
Prospectus #1
Parametric Emerging Markets Fund
MSCI Emerging Markets Index
Ten Years
|
Prospectus #1
Parametric Emerging Markets Fund
Class A
One Year
|
Prospectus #1
Parametric Emerging Markets Fund
Class A
Five Years
|
Prospectus #1
Parametric Emerging Markets Fund
Class A
Ten Years
|
Prospectus #1
Parametric Emerging Markets Fund
Class A
After Taxes on Distributions
One Year
|
Prospectus #1
Parametric Emerging Markets Fund
Class A
After Taxes on Distributions
Five Years
|
Prospectus #1
Parametric Emerging Markets Fund
Class A
After Taxes on Distributions
Ten Years
|
Prospectus #1
Parametric Emerging Markets Fund
Class A
After Taxes on Distributions and Sales
One Year
|
Prospectus #1
Parametric Emerging Markets Fund
Class A
After Taxes on Distributions and Sales
Five Years
|
Prospectus #1
Parametric Emerging Markets Fund
Class A
After Taxes on Distributions and Sales
Ten Years
|
Prospectus #1
Parametric Emerging Markets Fund
Class C
One Year
|
Prospectus #1
Parametric Emerging Markets Fund
Class C
Five Years
|
Prospectus #1
Parametric Emerging Markets Fund
Class C
Ten Years
|
Prospectus #1
Parametric Emerging Markets Fund
Class I
One Year
|
Prospectus #1
Parametric Emerging Markets Fund
Class I
Five Years
|
Prospectus #1
Parametric Emerging Markets Fund
Class I
Ten Years
|
Prospectus #1
Parametric Emerging Markets Fund
Class R6
One Year
|
Prospectus #1
Parametric Emerging Markets Fund
Class R6
Five Years
|
Prospectus #1
Parametric Emerging Markets Fund
Class R6
Ten Years
|
Prospectus #1
Parametric International Equity Fund
MSCI EAFE Index
One Year
|
Prospectus #1
Parametric International Equity Fund
MSCI EAFE Index
Five Years
|
Prospectus #1
Parametric International Equity Fund
MSCI EAFE Index
Ten Years
|
Prospectus #1
Parametric International Equity Fund
Class A
One Year
|
Prospectus #1
Parametric International Equity Fund
Class A
Five Years
|
Prospectus #1
Parametric International Equity Fund
Class A
Ten Years
|
Prospectus #1
Parametric International Equity Fund
Class A
After Taxes on Distributions
One Year
|
Prospectus #1
Parametric International Equity Fund
Class A
After Taxes on Distributions
Five Years
|
Prospectus #1
Parametric International Equity Fund
Class A
After Taxes on Distributions
Ten Years
|
Prospectus #1
Parametric International Equity Fund
Class A
After Taxes on Distributions and Sales
One Year
|
Prospectus #1
Parametric International Equity Fund
Class A
After Taxes on Distributions and Sales
Five Years
|
Prospectus #1
Parametric International Equity Fund
Class A
After Taxes on Distributions and Sales
Ten Years
|
Prospectus #1
Parametric International Equity Fund
Class I
One Year
|
Prospectus #1
Parametric International Equity Fund
Class I
Five Years
|
Prospectus #1
Parametric International Equity Fund
Class I
Ten Years
|
Prospectus #1
Parametric International Equity Fund
Class R
One Year
|
Prospectus #1
Parametric International Equity Fund
Class R
Five Years
|
Prospectus #1
Parametric International Equity Fund
Class R
Ten Years
|
Prospectus #1
Parametric International Equity Fund
Class R
Inception Date
|
Prospectus #1
Parametric International Equity Fund
Class R6
One Year
|
Prospectus #1
Parametric International Equity Fund
Class R6
Five Years
|
Prospectus #1
Parametric International Equity Fund
Class R6
Ten Years
|
Prospectus #1
Parametric International Equity Fund
Class R6
Inception Date
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
S&P 500® Index
One Year
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
S&P 500® Index
Five Years
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
S&P 500® Index
Life of Fund
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
Cboe S&P 500 BuyWrite Indexsm
One Year
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
Cboe S&P 500 BuyWrite Indexsm
Five Years
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
Cboe S&P 500 BuyWrite Indexsm
Life of Fund
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
ICE BofAML 3-Month U.S. Treasury Bill Index
One Year
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
ICE BofAML 3-Month U.S. Treasury Bill Index
Five Years
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
ICE BofAML 3-Month U.S. Treasury Bill Index
Life of Fund
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
Blended Index
One Year
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
Blended Index
Five Years
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
Blended Index
Life of Fund
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
Class I
One Year
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
Class I
Five Years
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
Class I
Life of Fund
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
Class I
Inception Date
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
Class I
After Taxes on Distributions
One Year
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
Class I
After Taxes on Distributions
Five Years
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
Class I
After Taxes on Distributions
Life of Fund
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
Class I
After Taxes on Distributions and Sales
One Year
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
Class I
After Taxes on Distributions and Sales
Five Years
|
Prospectus #2
Parametric Volatility Risk Premium - Defensive Fund
Class I
After Taxes on Distributions and Sales
Life of Fund
|
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| Total | 7.50% | 1.70% | 3.63% | (0.15%) | 0.73% | 1.74% | (1.05%) | 0.33% | 1.45% | 0.20% | 0.73% | 1.55% | 3.53% | 1.05% | 1.67% | 5.62% | 2.05% | 2.54% | 5.72% | 2.15% | 2.61% | 3.82% | 4.72% | 5.19% | (3.91%) | 2.10% | 4.43% | (5.34%) | 1.43% | 3.89% | (1.91%) | 1.75% | 3.62% | 1.74% | 3.49% | 5.26% | 1.19% | 2.96% | 4.75% | Aug. 10, 2015 | 1.71% | 3.51% | 5.29% | Aug. 10, 2015 | 25.02% | 14.51% | 14.54% | 20.12% | 6.87% | 6.84% | 5.25% | 2.46% | 2.19% | 14.89% | [1] | 8.77% | [1] | 8.56% | [1] | 16.52% | 8.95% | 8.39% | Feb. 09, 2017 | 15.34% | 8.00% | 7.67% | 9.84% | 6.86% | 6.58% | ||
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