Shareholder Report, Holdings (Details)	Dec. 31, 2025
C000005451 \| NVIDIA
Holdings [Line Items]
Percent of Net Asset Value	19.40%
C000005451 \| Apple
Holdings [Line Items]
Percent of Net Asset Value	8.40%
C000005451 \| Broadcom
Holdings [Line Items]
Percent of Net Asset Value	6.80%
C000005451 \| Microsoft
Holdings [Line Items]
Percent of Net Asset Value	6.00%
C000005451 \| Taiwan Semiconductor Manufacturing
Holdings [Line Items]
Percent of Net Asset Value	6.00%
C000005451 \| Advanced Micro Devices
Holdings [Line Items]
Percent of Net Asset Value	3.40%
C000005451 \| ASML Holding
Holdings [Line Items]
Percent of Net Asset Value	3.40%
C000005451 \| Samsung Electronics
Holdings [Line Items]
Percent of Net Asset Value	2.70%
C000005451 \| AppLovin
Holdings [Line Items]
Percent of Net Asset Value	2.20%
C000005451 \| Databricks
Holdings [Line Items]
Percent of Net Asset Value	2.00%
C000005451 \| Digital Systems
Holdings [Line Items]
Percent of Net Asset Value	19.40%
C000005451 \| Processors
Holdings [Line Items]
Percent of Net Asset Value	13.90%
C000005451 \| Infrastructure and Developer Tool Software
Holdings [Line Items]
Percent of Net Asset Value	11.80%
C000005451 \| Consumer Electronics
Holdings [Line Items]
Percent of Net Asset Value	8.40%
C000005451 \| Foundry
Holdings [Line Items]
Percent of Net Asset Value	6.60%
C000005451 \| Semiconductor Capital Equipment
Holdings [Line Items]
Percent of Net Asset Value	6.30%
C000005451 \| Memory
Holdings [Line Items]
Percent of Net Asset Value	4.60%
C000005451 \| Payments
Holdings [Line Items]
Percent of Net Asset Value	2.30%
C000005451 \| U.S. Internet Media/Advertising
Holdings [Line Items]
Percent of Net Asset Value	2.20%
C000005451 \| Other Holdings Grouping
Holdings [Line Items]
Percent of Net Asset Value	24.50%
C000177214 \| NVIDIA
Holdings [Line Items]
Percent of Net Asset Value	19.40%
C000177214 \| Apple
Holdings [Line Items]
Percent of Net Asset Value	8.40%
C000177214 \| Broadcom
Holdings [Line Items]
Percent of Net Asset Value	6.80%
C000177214 \| Microsoft
Holdings [Line Items]
Percent of Net Asset Value	6.00%
C000177214 \| Taiwan Semiconductor Manufacturing
Holdings [Line Items]
Percent of Net Asset Value	6.00%
C000177214 \| Advanced Micro Devices
Holdings [Line Items]
Percent of Net Asset Value	3.40%
C000177214 \| ASML Holding
Holdings [Line Items]
Percent of Net Asset Value	3.40%
C000177214 \| Samsung Electronics
Holdings [Line Items]
Percent of Net Asset Value	2.70%
C000177214 \| AppLovin
Holdings [Line Items]
Percent of Net Asset Value	2.20%
C000177214 \| Databricks
Holdings [Line Items]
Percent of Net Asset Value	2.00%
C000177214 \| Digital Systems
Holdings [Line Items]
Percent of Net Asset Value	19.40%
C000177214 \| Processors
Holdings [Line Items]
Percent of Net Asset Value	13.90%
C000177214 \| Infrastructure and Developer Tool Software
Holdings [Line Items]
Percent of Net Asset Value	11.80%
C000177214 \| Consumer Electronics
Holdings [Line Items]
Percent of Net Asset Value	8.40%
C000177214 \| Foundry
Holdings [Line Items]
Percent of Net Asset Value	6.60%
C000177214 \| Semiconductor Capital Equipment
Holdings [Line Items]
Percent of Net Asset Value	6.30%
C000177214 \| Memory
Holdings [Line Items]
Percent of Net Asset Value	4.60%
C000177214 \| Payments
Holdings [Line Items]
Percent of Net Asset Value	2.30%
C000177214 \| U.S. Internet Media/Advertising
Holdings [Line Items]
Percent of Net Asset Value	2.20%
C000177214 \| Other Holdings Grouping
Holdings [Line Items]
Percent of Net Asset Value	24.50%