v3.26.1
Shareholder Report, Holdings (Details)
Jan. 31, 2026
C000029000 | NVIDIA Corp. - FR_67066G104  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000029000 | Alphabet, Inc., Class C - FR_02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000029000 | Amazon.com, Inc. - FR_023135106  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000029000 | Meta Platforms, Inc., Class A - FR_30303M102  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
C000029000 | Broadcom, Inc. - FR_11135F101  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000029000 | Microsoft Corp. - FR_594918104  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000029000 | Taiwan Semiconductor Manufacturing Co., Ltd. - FR_874039100  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000029000 | Visa, Inc., Class A - FR_92826C839  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000029000 | Eli Lilly & Co. - FR_532457108  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000029000 | Netflix, Inc. - FR_64110L106  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000029000 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 33.10%
C000029000 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 18.30%
C000029000 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
C000029000 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 13.50%
C000029000 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000029000 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000029000 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000029000 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000029000 | SectorShort-Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000029000 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000028997 | NVIDIA Corp. - FR_67066G104  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000028997 | Alphabet, Inc., Class C - FR_02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000028997 | Amazon.com, Inc. - FR_023135106  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000028997 | Meta Platforms, Inc., Class A - FR_30303M102  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
C000028997 | Broadcom, Inc. - FR_11135F101  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000028997 | Microsoft Corp. - FR_594918104  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000028997 | Taiwan Semiconductor Manufacturing Co., Ltd. - FR_874039100  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000028997 | Visa, Inc., Class A - FR_92826C839  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000028997 | Eli Lilly & Co. - FR_532457108  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000028997 | Netflix, Inc. - FR_64110L106  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000028997 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 33.10%
C000028997 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 18.30%
C000028997 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
C000028997 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 13.50%
C000028997 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000028997 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000028997 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000028997 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000028997 | SectorShort-Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000028997 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000028999 | NVIDIA Corp. - FR_67066G104  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000028999 | Alphabet, Inc., Class C - FR_02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000028999 | Amazon.com, Inc. - FR_023135106  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000028999 | Meta Platforms, Inc., Class A - FR_30303M102  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
C000028999 | Broadcom, Inc. - FR_11135F101  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000028999 | Microsoft Corp. - FR_594918104  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000028999 | Taiwan Semiconductor Manufacturing Co., Ltd. - FR_874039100  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000028999 | Visa, Inc., Class A - FR_92826C839  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000028999 | Eli Lilly & Co. - FR_532457108  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000028999 | Netflix, Inc. - FR_64110L106  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000028999 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 33.10%
C000028999 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 18.30%
C000028999 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
C000028999 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 13.50%
C000028999 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000028999 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000028999 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000028999 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000028999 | SectorShort-Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000028999 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000029003 | NVIDIA Corp. - FR_67066G104  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000029003 | Alphabet, Inc., Class C - FR_02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 8.80%
C000029003 | Amazon.com, Inc. - FR_023135106  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000029003 | Meta Platforms, Inc., Class A - FR_30303M102  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
C000029003 | Broadcom, Inc. - FR_11135F101  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000029003 | Microsoft Corp. - FR_594918104  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000029003 | Taiwan Semiconductor Manufacturing Co., Ltd. - FR_874039100  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
C000029003 | Visa, Inc., Class A - FR_92826C839  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000029003 | Eli Lilly & Co. - FR_532457108  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000029003 | Netflix, Inc. - FR_64110L106  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000029003 | SectorInformation Technology  
Holdings [Line Items]  
Percent of Net Asset Value 33.10%
C000029003 | SectorCommunication Services  
Holdings [Line Items]  
Percent of Net Asset Value 18.30%
C000029003 | SectorConsumer Discretionary  
Holdings [Line Items]  
Percent of Net Asset Value 14.50%
C000029003 | SectorHealth Care  
Holdings [Line Items]  
Percent of Net Asset Value 13.50%
C000029003 | SectorIndustrials  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000029003 | SectorFinancials  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000029003 | SectorConsumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000029003 | SectorMaterials  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000029003 | SectorShort-Term Investments  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000029003 | Sector Other Net Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%