v3.26.1
Shareholder Report, Holdings (Details) - C000031584
Jun. 30, 2026
N00985106 | AerCap Holdings N.V.  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
020002101 | Allstate Corp. (The)  
Holdings [Line Items]  
Percent of Net Asset Value 6.90%
00287Y109 | AbbVie, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 6.70%
58933Y105 | Merck & Co., Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 6.20%
65339F101 | NextEra Energy, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 6.10%
023586506 | U-Haul Holding Co., Class B  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
925815102 | Vicor Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
26441C204 | Duke Energy Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
61747C707 | Morgan Stanley Institutional Liquidity Government Portfolio, Institutional Class  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
98389B100 | Xcel Energy, Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
Health Care65443P102  
Holdings [Line Items]  
Percent of Total Investments 91.50%
Health Care00484MAC0  
Holdings [Line Items]  
Percent of Total Investments 0.00%
Cash & Equivalent61747C707  
Holdings [Line Items]  
Percent of Total Investments 4.60%
U.S. Treasury Obligations912803GS6  
Holdings [Line Items]  
Percent of Total Investments 3.90%
Energy  
Holdings [Line Items]  
Percent of Net Asset Value 0.30%
Communications  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
U.S. Treasury Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 3.90%
Money Market Funds  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
Consumer Staples  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
Materials  
Holdings [Line Items]  
Percent of Net Asset Value 5.60%
Technology  
Holdings [Line Items]  
Percent of Net Asset Value 7.20%
Industrials  
Holdings [Line Items]  
Percent of Net Asset Value 9.50%
Financials  
Holdings [Line Items]  
Percent of Net Asset Value 14.00%
Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 19.90%
Health Care  
Holdings [Line Items]  
Percent of Net Asset Value 26.70%