v3.26.1
Shareholder Report, Holdings (Details)
Apr. 30, 2026
C000039961 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [1]
C000039961 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.10% [1]
C000039961 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 48.80% [1]
C000039961 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40% [1]
C000039961 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60% [1]
C000039961 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.10% [1]
C000039961 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.20% [1]
C000039961 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.70% [1]
C000039961 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60% [1]
C000039961 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.50% [1]
C000039961 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.30% [1]
C000039961 [Member] | Short Term Investments and Other Net Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.70% [1]
C000068369 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [2]
C000068369 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.10% [2]
C000068369 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 48.80% [2]
C000068369 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40% [2]
C000068369 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60% [2]
C000068369 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.10% [2]
C000068369 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.20% [2]
C000068369 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.70% [2]
C000068369 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60% [2]
C000068369 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.50% [2]
C000068369 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.30% [2]
C000068369 [Member] | Short Term Investments and Other Net Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.70% [2]
C000068370 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [3]
C000068370 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.10% [3]
C000068370 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 48.80% [3]
C000068370 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40% [3]
C000068370 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60% [3]
C000068370 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.10% [3]
C000068370 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.20% [3]
C000068370 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.70% [3]
C000068370 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60% [3]
C000068370 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.50% [3]
C000068370 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.30% [3]
C000068370 [Member] | Short Term Investments and Other Net Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.70% [3]
C000174226 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [4]
C000174226 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.10% [4]
C000174226 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 48.80% [4]
C000174226 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.40% [4]
C000174226 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.60% [4]
C000174226 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.10% [4]
C000174226 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.20% [4]
C000174226 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.70% [4]
C000174226 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 4.60% [4]
C000174226 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.50% [4]
C000174226 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.30% [4]
C000174226 [Member] | Short Term Investments and Other Net Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.70% [4]
C000024978 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [5]
C000024978 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00% [5]
C000024978 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.60% [5]
C000024978 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 55.90% [5]
C000024978 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20% [5]
C000024978 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%) [5]
C000024978 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.30% [5]
C000024978 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00% [5]
C000024978 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.80% [5]
C000024978 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.90% [5]
C000024978 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30% [5]
C000024978 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50% [5]
C000024978 [Member] | Market Indices [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.50%) [5]
C000024978 [Member] | Short Term Investments and Other Net Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%) [5]
C000068367 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [6]
C000068367 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00% [6]
C000068367 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.60% [6]
C000068367 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 55.90% [6]
C000068367 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20% [6]
C000068367 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%) [6]
C000068367 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.30% [6]
C000068367 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00% [6]
C000068367 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.80% [6]
C000068367 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.90% [6]
C000068367 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30% [6]
C000068367 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50% [6]
C000068367 [Member] | Market Indices [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.50%) [6]
C000068367 [Member] | Short Term Investments and Other Net Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%) [6]
C000068368 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [7]
C000068368 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00% [7]
C000068368 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.60% [7]
C000068368 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 55.90% [7]
C000068368 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20% [7]
C000068368 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%) [7]
C000068368 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.30% [7]
C000068368 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00% [7]
C000068368 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.80% [7]
C000068368 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.90% [7]
C000068368 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30% [7]
C000068368 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50% [7]
C000068368 [Member] | Market Indices [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.50%) [7]
C000068368 [Member] | Short Term Investments and Other Net Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%) [7]
C000095102 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [8]
C000095102 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00% [8]
C000095102 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.60% [8]
C000095102 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 55.90% [8]
C000095102 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20% [8]
C000095102 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%) [8]
C000095102 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.30% [8]
C000095102 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00% [8]
C000095102 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.80% [8]
C000095102 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.90% [8]
C000095102 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30% [8]
C000095102 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50% [8]
C000095102 [Member] | Market Indices [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.50%) [8]
C000095102 [Member] | Short Term Investments and Other Net Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%) [8]
C000206605 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [9]
C000206605 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00% [9]
C000206605 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.60% [9]
C000206605 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 55.90% [9]
C000206605 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.20% [9]
C000206605 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.20%) [9]
C000206605 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 8.30% [9]
C000206605 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 11.00% [9]
C000206605 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 14.80% [9]
C000206605 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 7.90% [9]
C000206605 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 0.30% [9]
C000206605 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 2.50% [9]
C000206605 [Member] | Market Indices [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (3.50%) [9]
C000206605 [Member] | Short Term Investments and Other Net Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.80%) [9]
C000138115 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [10]
C000138115 [Member] | PERU  
Holdings [Line Items]  
Percent of Net Asset Value 2.10% [10]
C000138115 [Member] | PHILIPPINES  
Holdings [Line Items]  
Percent of Net Asset Value 2.40% [10]
C000138115 [Member] | POLAND  
Holdings [Line Items]  
Percent of Net Asset Value 1.70% [10]
C000138115 [Member] | SINGAPORE  
Holdings [Line Items]  
Percent of Net Asset Value 0.80% [10]
C000138115 [Member] | SOUTH AFRICA  
Holdings [Line Items]  
Percent of Net Asset Value 1.70% [10]
C000138115 [Member] | TAIWAN  
Holdings [Line Items]  
Percent of Net Asset Value 17.00% [10]
C000138115 [Member] | TÜRKIYE  
Holdings [Line Items]  
Percent of Net Asset Value 1.80% [10]
C000138115 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 4.00% [10]
C000138115 [Member] | ARGENTINA  
Holdings [Line Items]  
Percent of Net Asset Value 1.50% [10]
C000138115 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 7.80% [10]
C000138115 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 19.00% [10]
C000138115 [Member] | GREECE  
Holdings [Line Items]  
Percent of Net Asset Value 3.40% [10]
C000138115 [Member] | HUNGARY  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [10]
C000138115 [Member] | INDIA  
Holdings [Line Items]  
Percent of Net Asset Value 8.00% [10]
C000138115 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 18.90% [10]
C000138115 [Member] | MEXICO  
Holdings [Line Items]  
Percent of Net Asset Value 3.80% [10]
C000138115 [Member] | Short Term Investments and Net Other Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20% [10]
C000095099 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [11]
C000095099 [Member] | PERU  
Holdings [Line Items]  
Percent of Net Asset Value 2.10% [11]
C000095099 [Member] | PHILIPPINES  
Holdings [Line Items]  
Percent of Net Asset Value 2.40% [11]
C000095099 [Member] | POLAND  
Holdings [Line Items]  
Percent of Net Asset Value 1.70% [11]
C000095099 [Member] | SINGAPORE  
Holdings [Line Items]  
Percent of Net Asset Value 0.80% [11]
C000095099 [Member] | SOUTH AFRICA  
Holdings [Line Items]  
Percent of Net Asset Value 1.70% [11]
C000095099 [Member] | TAIWAN  
Holdings [Line Items]  
Percent of Net Asset Value 17.00% [11]
C000095099 [Member] | TÜRKIYE  
Holdings [Line Items]  
Percent of Net Asset Value 1.80% [11]
C000095099 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 4.00% [11]
C000095099 [Member] | ARGENTINA  
Holdings [Line Items]  
Percent of Net Asset Value 1.50% [11]
C000095099 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 7.80% [11]
C000095099 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 19.00% [11]
C000095099 [Member] | GREECE  
Holdings [Line Items]  
Percent of Net Asset Value 3.40% [11]
C000095099 [Member] | HUNGARY  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [11]
C000095099 [Member] | INDIA  
Holdings [Line Items]  
Percent of Net Asset Value 8.00% [11]
C000095099 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 18.90% [11]
C000095099 [Member] | MEXICO  
Holdings [Line Items]  
Percent of Net Asset Value 3.80% [11]
C000095099 [Member] | Short Term Investments and Net Other Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20% [11]
C000095100 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [12]
C000095100 [Member] | PERU  
Holdings [Line Items]  
Percent of Net Asset Value 2.10% [12]
C000095100 [Member] | PHILIPPINES  
Holdings [Line Items]  
Percent of Net Asset Value 2.40% [12]
C000095100 [Member] | POLAND  
Holdings [Line Items]  
Percent of Net Asset Value 1.70% [12]
C000095100 [Member] | SINGAPORE  
Holdings [Line Items]  
Percent of Net Asset Value 0.80% [12]
C000095100 [Member] | SOUTH AFRICA  
Holdings [Line Items]  
Percent of Net Asset Value 1.70% [12]
C000095100 [Member] | TAIWAN  
Holdings [Line Items]  
Percent of Net Asset Value 17.00% [12]
C000095100 [Member] | TÜRKIYE  
Holdings [Line Items]  
Percent of Net Asset Value 1.80% [12]
C000095100 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 4.00% [12]
C000095100 [Member] | ARGENTINA  
Holdings [Line Items]  
Percent of Net Asset Value 1.50% [12]
C000095100 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 7.80% [12]
C000095100 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 19.00% [12]
C000095100 [Member] | GREECE  
Holdings [Line Items]  
Percent of Net Asset Value 3.40% [12]
C000095100 [Member] | HUNGARY  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [12]
C000095100 [Member] | INDIA  
Holdings [Line Items]  
Percent of Net Asset Value 8.00% [12]
C000095100 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 18.90% [12]
C000095100 [Member] | MEXICO  
Holdings [Line Items]  
Percent of Net Asset Value 3.80% [12]
C000095100 [Member] | Short Term Investments and Net Other Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20% [12]
C000095101 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [13]
C000095101 [Member] | PERU  
Holdings [Line Items]  
Percent of Net Asset Value 2.10% [13]
C000095101 [Member] | PHILIPPINES  
Holdings [Line Items]  
Percent of Net Asset Value 2.40% [13]
C000095101 [Member] | POLAND  
Holdings [Line Items]  
Percent of Net Asset Value 1.70% [13]
C000095101 [Member] | SINGAPORE  
Holdings [Line Items]  
Percent of Net Asset Value 0.80% [13]
C000095101 [Member] | SOUTH AFRICA  
Holdings [Line Items]  
Percent of Net Asset Value 1.70% [13]
C000095101 [Member] | TAIWAN  
Holdings [Line Items]  
Percent of Net Asset Value 17.00% [13]
C000095101 [Member] | TÜRKIYE  
Holdings [Line Items]  
Percent of Net Asset Value 1.80% [13]
C000095101 [Member] | UNITED STATES  
Holdings [Line Items]  
Percent of Net Asset Value 4.00% [13]
C000095101 [Member] | ARGENTINA  
Holdings [Line Items]  
Percent of Net Asset Value 1.50% [13]
C000095101 [Member] | BRAZIL  
Holdings [Line Items]  
Percent of Net Asset Value 7.80% [13]
C000095101 [Member] | CHINA  
Holdings [Line Items]  
Percent of Net Asset Value 19.00% [13]
C000095101 [Member] | GREECE  
Holdings [Line Items]  
Percent of Net Asset Value 3.40% [13]
C000095101 [Member] | HUNGARY  
Holdings [Line Items]  
Percent of Net Asset Value 2.90% [13]
C000095101 [Member] | INDIA  
Holdings [Line Items]  
Percent of Net Asset Value 8.00% [13]
C000095101 [Member] | KOREA, REPUBLIC OF  
Holdings [Line Items]  
Percent of Net Asset Value 18.90% [13]
C000095101 [Member] | MEXICO  
Holdings [Line Items]  
Percent of Net Asset Value 3.80% [13]
C000095101 [Member] | Short Term Investments and Net Other Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 3.20% [13]
C000078761 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [14]
C000078761 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.70% [14]
C000078761 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80% [14]
C000078761 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.10% [14]
C000078761 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.20%) [14]
C000078761 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.60%) [14]
C000078761 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.40% [14]
C000078761 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.30% [14]
C000078761 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.70%) [14]
C000078761 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.50% [14]
C000078761 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00% [14]
C000078761 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.30% [14]
C000078761 [Member] | Short Term Investments Derivatives and Other Net Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 42.30% [14]
C000078761 [Member] | Market Indices [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.90%) [14]
C000098121 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [15]
C000098121 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.70% [15]
C000098121 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80% [15]
C000098121 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.10% [15]
C000098121 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.20%) [15]
C000098121 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.60%) [15]
C000098121 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.40% [15]
C000098121 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.30% [15]
C000098121 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.70%) [15]
C000098121 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.50% [15]
C000098121 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00% [15]
C000098121 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.30% [15]
C000098121 [Member] | Short Term Investments Derivatives and Other Net Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 42.30% [15]
C000098121 [Member] | Market Indices [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.90%) [15]
C000095104 [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 100.00% [16]
C000095104 [Member] | Energy Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.70% [16]
C000095104 [Member] | Financial Services Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.80% [16]
C000095104 [Member] | Information Technology Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 32.10% [16]
C000095104 [Member] | Materials Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.20%) [16]
C000095104 [Member] | Consumer Staples Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (1.60%) [16]
C000095104 [Member] | Industrial Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 10.40% [16]
C000095104 [Member] | Communications Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 9.30% [16]
C000095104 [Member] | Consumer Discretionary Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (0.70%) [16]
C000095104 [Member] | Healthcare Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 6.50% [16]
C000095104 [Member] | Real Estate Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.00% [16]
C000095104 [Member] | Utilities Sector [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 1.30% [16]
C000095104 [Member] | Short Term Investments Derivatives and Other Net Assets [Member]  
Holdings [Line Items]  
Percent of Net Asset Value 42.30% [16]
C000095104 [Member] | Market Indices [Member]  
Holdings [Line Items]  
Percent of Net Asset Value (2.90%) [16]
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