Shareholder Report, Holdings (Details)	Jun. 30, 2026
C000005433 \| Top10HoldingDatadogBNY-23804L103
Holdings [Line Items]
Percent of Net Asset Value	2.50%
C000005433 \| Top10HoldingCloudflareBNY-18915M107
Holdings [Line Items]
Percent of Net Asset Value	2.30%
C000005433 \| Top10HoldingComfort Systems USABNY-199908104
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000005433 \| Top10HoldingAstera LabsBNY-04626A103
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000005433 \| Top10HoldingSnowflakeBNY-833445109
Holdings [Line Items]
Percent of Net Asset Value	1.70%
C000005433 \| Top10HoldingTeradyneBNY-880770102
Holdings [Line Items]
Percent of Net Asset Value	1.70%
C000005433 \| Top10HoldingCencoraBNY-03073E105
Holdings [Line Items]
Percent of Net Asset Value	1.50%
C000005433 \| Top10HoldingTarga ResourcesBNY-87612G101
Holdings [Line Items]
Percent of Net Asset Value	1.50%
C000005433 \| Top10HoldingRocket LabBNY-773121108
Holdings [Line Items]
Percent of Net Asset Value	1.50%
C000005433 \| Top10HoldingSimon Property GroupBNY-828806109
Holdings [Line Items]
Percent of Net Asset Value	1.50%
C000005433 \| Information Technology
Holdings [Line Items]
Percent of Net Asset Value	32.20%
C000005433 \| Industrials & Business Services
Holdings [Line Items]
Percent of Net Asset Value	22.40%
C000005433 \| Health Care
Holdings [Line Items]
Percent of Net Asset Value	13.20%
C000005433 \| Consumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	11.50%
C000005433 \| Financials
Holdings [Line Items]
Percent of Net Asset Value	4.80%
C000005433 \| Communication Services
Holdings [Line Items]
Percent of Net Asset Value	4.60%
C000005433 \| Energy
Holdings [Line Items]
Percent of Net Asset Value	3.60%
C000005433 \| Real Estate
Holdings [Line Items]
Percent of Net Asset Value	2.20%
C000005433 \| Materials
Holdings [Line Items]
Percent of Net Asset Value	2.00%
C000005433 \| Investment TypeOther Holdings Grouping
Holdings [Line Items]
Percent of Net Asset Value	3.50%
C000190557 \| Top10HoldingDatadogBNY-23804L103
Holdings [Line Items]
Percent of Net Asset Value	2.50%
C000190557 \| Top10HoldingCloudflareBNY-18915M107
Holdings [Line Items]
Percent of Net Asset Value	2.30%
C000190557 \| Top10HoldingComfort Systems USABNY-199908104
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000190557 \| Top10HoldingAstera LabsBNY-04626A103
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000190557 \| Top10HoldingSnowflakeBNY-833445109
Holdings [Line Items]
Percent of Net Asset Value	1.70%
C000190557 \| Top10HoldingTeradyneBNY-880770102
Holdings [Line Items]
Percent of Net Asset Value	1.70%
C000190557 \| Top10HoldingCencoraBNY-03073E105
Holdings [Line Items]
Percent of Net Asset Value	1.50%
C000190557 \| Top10HoldingTarga ResourcesBNY-87612G101
Holdings [Line Items]
Percent of Net Asset Value	1.50%
C000190557 \| Top10HoldingRocket LabBNY-773121108
Holdings [Line Items]
Percent of Net Asset Value	1.50%
C000190557 \| Top10HoldingSimon Property GroupBNY-828806109
Holdings [Line Items]
Percent of Net Asset Value	1.50%
C000190557 \| Information Technology
Holdings [Line Items]
Percent of Net Asset Value	32.20%
C000190557 \| Industrials & Business Services
Holdings [Line Items]
Percent of Net Asset Value	22.40%
C000190557 \| Health Care
Holdings [Line Items]
Percent of Net Asset Value	13.20%
C000190557 \| Consumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	11.50%
C000190557 \| Financials
Holdings [Line Items]
Percent of Net Asset Value	4.80%
C000190557 \| Communication Services
Holdings [Line Items]
Percent of Net Asset Value	4.60%
C000190557 \| Energy
Holdings [Line Items]
Percent of Net Asset Value	3.60%
C000190557 \| Real Estate
Holdings [Line Items]
Percent of Net Asset Value	2.20%
C000190557 \| Materials
Holdings [Line Items]
Percent of Net Asset Value	2.00%
C000190557 \| Investment TypeOther Holdings Grouping
Holdings [Line Items]
Percent of Net Asset Value	3.50%