v3.25.2
Shareholder Report, Holdings (Details)
Jun. 30, 2025
C000088645 | Sony Group Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000088645 | The Bank of New York Mellon Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000088645 | Newmont Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000088645 | Republic Services Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000088645 | National Fuel Gas Co.  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000088645 | Paramount Global  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000088645 | Crane Co.  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000088645 | Madison Square Garden Sports Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000088645 | American Express Co.  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000088645 | Atlanta Braves Holdings Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000088645 | InvestmentType_Common Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 98.50%
C000088645 | InvestmentType_U.S. Government Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000088645 | Entertainment  
Holdings [Line Items]  
Percent of Net Asset Value 16.60%
C000088645 | Financial Services  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000088645 | Broadcasting  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000088645 | Electronics  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000088645 | Environmental Services  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000088645 | Metals and Mining  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000088645 | Diversified Industrial  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000088645 | Energy and Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000088645 | Other Industry sectors  
Holdings [Line Items]  
Percent of Net Asset Value 24.40%
C000088645 | Other Assets and Liabilities (Net)  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000002904 | Sony Group Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000002904 | The Bank of New York Mellon Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000002904 | Newmont Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000002904 | Republic Services Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000002904 | National Fuel Gas Co.  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000002904 | Paramount Global  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000002904 | Crane Co.  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000002904 | Madison Square Garden Sports Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000002904 | American Express Co.  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000002904 | Atlanta Braves Holdings Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000002904 | InvestmentType_Common Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 98.50%
C000002904 | InvestmentType_U.S. Government Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000002904 | Entertainment  
Holdings [Line Items]  
Percent of Net Asset Value 16.60%
C000002904 | Financial Services  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000002904 | Broadcasting  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000002904 | Electronics  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000002904 | Environmental Services  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000002904 | Metals and Mining  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000002904 | Diversified Industrial  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000002904 | Energy and Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000002904 | Other Industry sectors  
Holdings [Line Items]  
Percent of Net Asset Value 24.40%
C000002904 | Other Assets and Liabilities (Net)  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000034316 | Sony Group Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000034316 | The Bank of New York Mellon Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000034316 | Newmont Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000034316 | Republic Services Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000034316 | National Fuel Gas Co.  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000034316 | Paramount Global  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000034316 | Crane Co.  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000034316 | Madison Square Garden Sports Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000034316 | American Express Co.  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000034316 | Atlanta Braves Holdings Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000034316 | InvestmentType_Common Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 98.50%
C000034316 | InvestmentType_U.S. Government Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000034316 | Entertainment  
Holdings [Line Items]  
Percent of Net Asset Value 16.60%
C000034316 | Financial Services  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000034316 | Broadcasting  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000034316 | Electronics  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000034316 | Environmental Services  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000034316 | Metals and Mining  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000034316 | Diversified Industrial  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000034316 | Energy and Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000034316 | Other Industry sectors  
Holdings [Line Items]  
Percent of Net Asset Value 24.40%
C000034316 | Other Assets and Liabilities (Net)  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%
C000002902 | Sony Group Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 7.70%
C000002902 | The Bank of New York Mellon Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 6.80%
C000002902 | Newmont Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 6.60%
C000002902 | Republic Services Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 5.40%
C000002902 | National Fuel Gas Co.  
Holdings [Line Items]  
Percent of Net Asset Value 5.20%
C000002902 | Paramount Global  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000002902 | Crane Co.  
Holdings [Line Items]  
Percent of Net Asset Value 4.80%
C000002902 | Madison Square Garden Sports Corp.  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000002902 | American Express Co.  
Holdings [Line Items]  
Percent of Net Asset Value 4.50%
C000002902 | Atlanta Braves Holdings Inc.  
Holdings [Line Items]  
Percent of Net Asset Value 3.60%
C000002902 | InvestmentType_Common Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 98.50%
C000002902 | InvestmentType_U.S. Government Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 1.50%
C000002902 | Entertainment  
Holdings [Line Items]  
Percent of Net Asset Value 16.60%
C000002902 | Financial Services  
Holdings [Line Items]  
Percent of Net Asset Value 14.90%
C000002902 | Broadcasting  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000002902 | Electronics  
Holdings [Line Items]  
Percent of Net Asset Value 8.30%
C000002902 | Environmental Services  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000002902 | Metals and Mining  
Holdings [Line Items]  
Percent of Net Asset Value 7.00%
C000002902 | Diversified Industrial  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000002902 | Energy and Utilities  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000002902 | Other Industry sectors  
Holdings [Line Items]  
Percent of Net Asset Value 24.40%
C000002902 | Other Assets and Liabilities (Net)  
Holdings [Line Items]  
Percent of Net Asset Value 0.00%