v3.26.1
Shareholder Report, Holdings (Details)
Jun. 30, 2026
C000005469 | Top10HoldingAlphabetBNY-02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
C000005469 | Top10HoldingMeta PlatformsBNY-30303M102  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000005469 | Top10HoldingT-Mobile U.S.BNY-872590104  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000005469 | Top10HoldingTaiwan Semiconductor ManufacturingBNY-874039100  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000005469 | Top10HoldingNetflixBNY-64110L106  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000005469 | Top10HoldingDeutsche TelekomBNY-5842359  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000005469 | Top10HoldingAdvanced Micro DevicesBNY-007903107  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000005469 | Top10HoldingSpotify TechnologyBNY-BFZ1K46  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000005469 | Top10HoldingNVIDIABNY-67066G104  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000005469 | Top10HoldingSpace Exploration TechnologiesBNY-84615Q103  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000005469 | U.S. Internet Media/Advertising  
Holdings [Line Items]  
Percent of Net Asset Value 20.20%
C000005469 | Direct-to-Consumer Subscription Services  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
C000005469 | Processors  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
C000005469 | Foundry  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000005469 | Live Entertainment  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000005469 | U.S. Wireless  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000005469 | European Telecom  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000005469 | Rest of The World Telecom  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000005469 | Digital Systems  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000005469 | Investment TypeOther Holdings Grouping  
Holdings [Line Items]  
Percent of Net Asset Value 31.70%
C000169955 | Top10HoldingAlphabetBNY-02079K107  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
C000169955 | Top10HoldingMeta PlatformsBNY-30303M102  
Holdings [Line Items]  
Percent of Net Asset Value 7.80%
C000169955 | Top10HoldingT-Mobile U.S.BNY-872590104  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000169955 | Top10HoldingTaiwan Semiconductor ManufacturingBNY-874039100  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
C000169955 | Top10HoldingNetflixBNY-64110L106  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000169955 | Top10HoldingDeutsche TelekomBNY-5842359  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000169955 | Top10HoldingAdvanced Micro DevicesBNY-007903107  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000169955 | Top10HoldingSpotify TechnologyBNY-BFZ1K46  
Holdings [Line Items]  
Percent of Net Asset Value 3.70%
C000169955 | Top10HoldingNVIDIABNY-67066G104  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000169955 | Top10HoldingSpace Exploration TechnologiesBNY-84615Q103  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000169955 | U.S. Internet Media/Advertising  
Holdings [Line Items]  
Percent of Net Asset Value 20.20%
C000169955 | Direct-to-Consumer Subscription Services  
Holdings [Line Items]  
Percent of Net Asset Value 9.00%
C000169955 | Processors  
Holdings [Line Items]  
Percent of Net Asset Value 8.00%
C000169955 | Foundry  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000169955 | Live Entertainment  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
C000169955 | U.S. Wireless  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000169955 | European Telecom  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000169955 | Rest of The World Telecom  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000169955 | Digital Systems  
Holdings [Line Items]  
Percent of Net Asset Value 3.40%
C000169955 | Investment TypeOther Holdings Grouping  
Holdings [Line Items]  
Percent of Net Asset Value 31.70%