v3.25.2
Shareholder Report, Holdings (Details)
Jun. 30, 2025
C000005427 | U.S. Treasury Notes  
Holdings [Line Items]  
Percent of Net Asset Value 14.00%
C000005427 | Microsoft  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000005427 | Amazon.com  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000005427 | NVIDIA  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000005427 | Becton Dickinson & Company  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000005427 | HUB International  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000005427 | Roper Technologies  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000005427 | PTC  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000005427 | Revvity  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000005427 | Meta Platforms  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000005427 | Common Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 61.30%
C000005427 | Corporate Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 29.00%
C000005427 | Other Holdings Grouping  
Holdings [Line Items]  
Percent of Net Asset Value 9.70%
C000005428 | U.S. Treasury Notes  
Holdings [Line Items]  
Percent of Net Asset Value 14.00%
C000005428 | Microsoft  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000005428 | Amazon.com  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000005428 | NVIDIA  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000005428 | Becton Dickinson & Company  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000005428 | HUB International  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000005428 | Roper Technologies  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000005428 | PTC  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000005428 | Revvity  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000005428 | Meta Platforms  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000005428 | Common Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 61.30%
C000005428 | Corporate Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 29.00%
C000005428 | Other Holdings Grouping  
Holdings [Line Items]  
Percent of Net Asset Value 9.70%
C000166317 | U.S. Treasury Notes  
Holdings [Line Items]  
Percent of Net Asset Value 14.00%
C000166317 | Microsoft  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000166317 | Amazon.com  
Holdings [Line Items]  
Percent of Net Asset Value 4.20%
C000166317 | NVIDIA  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000166317 | Becton Dickinson & Company  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000166317 | HUB International  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000166317 | Roper Technologies  
Holdings [Line Items]  
Percent of Net Asset Value 2.60%
C000166317 | PTC  
Holdings [Line Items]  
Percent of Net Asset Value 2.30%
C000166317 | Revvity  
Holdings [Line Items]  
Percent of Net Asset Value 2.10%
C000166317 | Meta Platforms  
Holdings [Line Items]  
Percent of Net Asset Value 1.80%
C000166317 | Common Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 61.30%
C000166317 | Corporate Bonds  
Holdings [Line Items]  
Percent of Net Asset Value 29.00%
C000166317 | Other Holdings Grouping  
Holdings [Line Items]  
Percent of Net Asset Value 9.70%