v3.26.1
Shareholder Report, Holdings (Details)
Apr. 30, 2026
C000106439 [Member] | Elevance Health Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000106439 [Member] | Lennar Corp Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000106439 [Member] | Broadcom Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000106439 [Member] | Meta Platforms Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000106439 [Member] | Cheniere Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000106439 [Member] | KKR And Company Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000106439 [Member] | Taiwan Semiconductor Manufacturing Company Ltd ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000106439 [Member] | Microsoft Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000106439 [Member] | Alphabet Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000106439 [Member] | Amazon com Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000106439 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000106439 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.80%
C000106439 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000106439 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000106439 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.70%
C000106439 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000106439 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000106439 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.10%
C000106439 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000106439 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000106439 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000078717 [Member] | Elevance Health Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000078717 [Member] | Lennar Corp Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000078717 [Member] | Broadcom Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000078717 [Member] | Meta Platforms Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000078717 [Member] | Cheniere Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000078717 [Member] | KKR And Company Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000078717 [Member] | Taiwan Semiconductor Manufacturing Company Ltd ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000078717 [Member] | Microsoft Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000078717 [Member] | Alphabet Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000078717 [Member] | Amazon com Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000078717 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000078717 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.80%
C000078717 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000078717 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000078717 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.70%
C000078717 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000078717 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000078717 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.10%
C000078717 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000078717 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000078717 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000078716 [Member] | Elevance Health Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000078716 [Member] | Lennar Corp Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000078716 [Member] | Broadcom Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000078716 [Member] | Meta Platforms Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000078716 [Member] | Cheniere Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000078716 [Member] | KKR And Company Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000078716 [Member] | Taiwan Semiconductor Manufacturing Company Ltd ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000078716 [Member] | Microsoft Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000078716 [Member] | Alphabet Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000078716 [Member] | Amazon com Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000078716 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000078716 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.80%
C000078716 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000078716 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000078716 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.70%
C000078716 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000078716 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000078716 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.10%
C000078716 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000078716 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000078716 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000113486 [Member] | Elevance Health Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000113486 [Member] | Lennar Corp Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000113486 [Member] | Broadcom Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000113486 [Member] | Meta Platforms Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000113486 [Member] | Cheniere Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000113486 [Member] | KKR And Company Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000113486 [Member] | Taiwan Semiconductor Manufacturing Company Ltd ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000113486 [Member] | Microsoft Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000113486 [Member] | Alphabet Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000113486 [Member] | Amazon com Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000113486 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000113486 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.80%
C000113486 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000113486 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000113486 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.70%
C000113486 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000113486 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000113486 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.10%
C000113486 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000113486 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000113486 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000177896 [Member] | Elevance Health Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000177896 [Member] | Lennar Corp Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000177896 [Member] | Broadcom Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000177896 [Member] | Meta Platforms Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000177896 [Member] | Cheniere Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000177896 [Member] | KKR And Company Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000177896 [Member] | Taiwan Semiconductor Manufacturing Company Ltd ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000177896 [Member] | Microsoft Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000177896 [Member] | Alphabet Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000177896 [Member] | Amazon com Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000177896 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000177896 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.80%
C000177896 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000177896 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000177896 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.70%
C000177896 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000177896 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000177896 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.10%
C000177896 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000177896 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000177896 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000001795 [Member] | Elevance Health Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000001795 [Member] | Lennar Corp Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000001795 [Member] | Broadcom Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000001795 [Member] | Meta Platforms Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000001795 [Member] | Cheniere Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000001795 [Member] | KKR And Company Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000001795 [Member] | Taiwan Semiconductor Manufacturing Company Ltd ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000001795 [Member] | Microsoft Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000001795 [Member] | Alphabet Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000001795 [Member] | Amazon com Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000001795 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000001795 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.80%
C000001795 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000001795 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000001795 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.70%
C000001795 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000001795 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000001795 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.10%
C000001795 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000001795 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000001795 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000001794 [Member] | Elevance Health Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000001794 [Member] | Lennar Corp Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000001794 [Member] | Broadcom Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000001794 [Member] | Meta Platforms Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000001794 [Member] | Cheniere Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000001794 [Member] | KKR And Company Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000001794 [Member] | Taiwan Semiconductor Manufacturing Company Ltd ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000001794 [Member] | Microsoft Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000001794 [Member] | Alphabet Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000001794 [Member] | Amazon com Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000001794 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000001794 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.80%
C000001794 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000001794 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000001794 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.70%
C000001794 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000001794 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000001794 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.10%
C000001794 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000001794 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000001794 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000001792 [Member] | Elevance Health Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000001792 [Member] | Lennar Corp Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000001792 [Member] | Broadcom Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.00%
C000001792 [Member] | Meta Platforms Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000001792 [Member] | Cheniere Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000001792 [Member] | KKR And Company Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000001792 [Member] | Taiwan Semiconductor Manufacturing Company Ltd ADR [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000001792 [Member] | Microsoft Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000001792 [Member] | Alphabet Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.70%
C000001792 [Member] | Amazon com Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000001792 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000001792 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 28.80%
C000001792 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000001792 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000001792 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.70%
C000001792 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 15.10%
C000001792 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000001792 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.10%
C000001792 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000001792 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000001792 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000134711 [Member] | Cheniere Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000134711 [Member] | Targa Resources Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000134711 [Member] | The Williams Companies Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000134711 [Member] | Dominion Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134711 [Member] | E ON SE [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134711 [Member] | Sempra [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134711 [Member] | Cia de Saneamento Basico do Estado de Sao Paulo [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000134711 [Member] | Engie SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000134711 [Member] | ENN Energy Holdings Ltd [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000134711 [Member] | Atmos Energy Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000134711 [Member] | Other countries [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000134711 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000134711 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000134711 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000134711 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000134711 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000134711 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 61.20%
C000134711 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000134711 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000134711 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000134711 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134711 [Member] | HONG KONG  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000134711 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000134711 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000134711 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000134711 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000134711 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
C000134711 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000141694 [Member] | Cheniere Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000141694 [Member] | Targa Resources Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000141694 [Member] | The Williams Companies Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000141694 [Member] | Dominion Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000141694 [Member] | E ON SE [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000141694 [Member] | Sempra [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000141694 [Member] | Cia de Saneamento Basico do Estado de Sao Paulo [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000141694 [Member] | Engie SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000141694 [Member] | ENN Energy Holdings Ltd [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000141694 [Member] | Atmos Energy Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000141694 [Member] | Other countries [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000141694 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000141694 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000141694 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000141694 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000141694 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000141694 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 61.20%
C000141694 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000141694 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000141694 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000141694 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000141694 [Member] | HONG KONG  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000141694 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000141694 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000141694 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000141694 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000141694 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
C000141694 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000134712 [Member] | Cheniere Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000134712 [Member] | Targa Resources Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000134712 [Member] | The Williams Companies Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000134712 [Member] | Dominion Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134712 [Member] | E ON SE [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134712 [Member] | Sempra [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134712 [Member] | Cia de Saneamento Basico do Estado de Sao Paulo [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000134712 [Member] | Engie SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000134712 [Member] | ENN Energy Holdings Ltd [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000134712 [Member] | Atmos Energy Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000134712 [Member] | Other countries [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000134712 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000134712 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000134712 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000134712 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000134712 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000134712 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 61.20%
C000134712 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000134712 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000134712 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000134712 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134712 [Member] | HONG KONG  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000134712 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000134712 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000134712 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000134712 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000134712 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
C000134712 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000134713 [Member] | Cheniere Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000134713 [Member] | Targa Resources Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000134713 [Member] | The Williams Companies Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000134713 [Member] | Dominion Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134713 [Member] | E ON SE [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134713 [Member] | Sempra [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134713 [Member] | Cia de Saneamento Basico do Estado de Sao Paulo [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000134713 [Member] | Engie SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000134713 [Member] | ENN Energy Holdings Ltd [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000134713 [Member] | Atmos Energy Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000134713 [Member] | Other countries [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000134713 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000134713 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000134713 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000134713 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000134713 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000134713 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 61.20%
C000134713 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000134713 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000134713 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000134713 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134713 [Member] | HONG KONG  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000134713 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000134713 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000134713 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000134713 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000134713 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
C000134713 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000134714 [Member] | Cheniere Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000134714 [Member] | Targa Resources Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000134714 [Member] | The Williams Companies Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000134714 [Member] | Dominion Energy Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134714 [Member] | E ON SE [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134714 [Member] | Sempra [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134714 [Member] | Cia de Saneamento Basico do Estado de Sao Paulo [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000134714 [Member] | Engie SA [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000134714 [Member] | ENN Energy Holdings Ltd [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000134714 [Member] | Atmos Energy Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000134714 [Member] | Other countries [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000134714 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000134714 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.40%
C000134714 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000134714 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000134714 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.60%
C000134714 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 61.20%
C000134714 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000134714 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 3.20%
C000134714 [Member] | FRANCE  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000134714 [Member] | GERMANY  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134714 [Member] | HONG KONG  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000134714 [Member] | ITALY  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000134714 [Member] | JAPAN  
Holdings [Line Items]  
Percent of Net Asset Value 7.30%
C000134714 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000134714 [Member] | UNITED KINGDOM  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000134714 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 49.00%
C000134714 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000193016 [Member] | Braze Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000193016 [Member] | Adeia Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000193016 [Member] | Vicor Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000193016 [Member] | Generac Holdings Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000193016 [Member] | Regal Rexnord Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000193016 [Member] | Banner Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000193016 [Member] | The Timken Company [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000193016 [Member] | Kulicke And Soffa Industries Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000193016 [Member] | Ambarella Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000193016 [Member] | SouthState Bank Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000193016 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000193016 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.90%
C000193016 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 22.20%
C000193016 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000193016 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000193016 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000193016 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000193016 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.10%
C000193016 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.10%
C000193016 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000193016 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000193016 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000134720 [Member] | Braze Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000134720 [Member] | Adeia Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000134720 [Member] | Vicor Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000134720 [Member] | Generac Holdings Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000134720 [Member] | Regal Rexnord Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000134720 [Member] | Banner Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000134720 [Member] | The Timken Company [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000134720 [Member] | Kulicke And Soffa Industries Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000134720 [Member] | Ambarella Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000134720 [Member] | SouthState Bank Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000134720 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000134720 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.90%
C000134720 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 22.20%
C000134720 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134720 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000134720 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000134720 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134720 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.10%
C000134720 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.10%
C000134720 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000134720 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000134720 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000134719 [Member] | Braze Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000134719 [Member] | Adeia Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000134719 [Member] | Vicor Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000134719 [Member] | Generac Holdings Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000134719 [Member] | Regal Rexnord Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000134719 [Member] | Banner Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000134719 [Member] | The Timken Company [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000134719 [Member] | Kulicke And Soffa Industries Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000134719 [Member] | Ambarella Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000134719 [Member] | SouthState Bank Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000134719 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000134719 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.90%
C000134719 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 22.20%
C000134719 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134719 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000134719 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000134719 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134719 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.10%
C000134719 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.10%
C000134719 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000134719 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000134719 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000134721 [Member] | Braze Inc Class A [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000134721 [Member] | Adeia Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000134721 [Member] | Vicor Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000134721 [Member] | Generac Holdings Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000134721 [Member] | Regal Rexnord Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.90%
C000134721 [Member] | Banner Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000134721 [Member] | The Timken Company [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000134721 [Member] | Kulicke And Soffa Industries Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000134721 [Member] | Ambarella Inc [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000134721 [Member] | SouthState Bank Corp [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000134721 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.70%
C000134721 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 25.90%
C000134721 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 22.20%
C000134721 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134721 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.10%
C000134721 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000134721 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000134721 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.10%
C000134721 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 13.10%
C000134721 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000134721 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.10%
C000134721 [Member] | Short term investments and other [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%