Shareholder Report, Holdings (Details)	Jun. 30, 2026
C000024403 \| FR_78473E103
Holdings [Line Items]
Percent of Net Asset Value	2.80%
C000024403 \| FR_918284100
Holdings [Line Items]
Percent of Net Asset Value	2.10%
C000024403 \| FR_36831E108
Holdings [Line Items]
Percent of Net Asset Value	2.00%
C000024403 \| FR_G8068L108
Holdings [Line Items]
Percent of Net Asset Value	1.90%
C000024403 \| FR_149568107
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000024403 \| FR_25402D102
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000024403 \| FR_40131M109
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000024403 \| FR_782011100
Holdings [Line Items]
Percent of Net Asset Value	1.80%
C000024403 \| FR_925550105
Holdings [Line Items]
Percent of Net Asset Value	1.70%
C000024403 \| FR_45867G101
Holdings [Line Items]
Percent of Net Asset Value	1.70%
C000024403 \| Industrials
Holdings [Line Items]
Percent of Net Asset Value	27.40%
C000024403 \| Information Technology
Holdings [Line Items]
Percent of Net Asset Value	23.90%
C000024403 \| Health Care
Holdings [Line Items]
Percent of Net Asset Value	21.40%
C000024403 \| Consumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	7.20%
C000024403 \| Financials
Holdings [Line Items]
Percent of Net Asset Value	7.00%
C000024403 \| Energy
Holdings [Line Items]
Percent of Net Asset Value	2.40%
C000024403 \| Consumer Staples
Holdings [Line Items]
Percent of Net Asset Value	2.30%
C000024403 \| Communication Services
Holdings [Line Items]
Percent of Net Asset Value	1.00%
C000024403 \| Utilities
Holdings [Line Items]
Percent of Net Asset Value	0.50%
C000024403 \| LongCommon Stocks
Holdings [Line Items]
Percent of Net Asset Value	93.10%
C000024403 \| LongMoney Market Funds
Holdings [Line Items]
Percent of Net Asset Value	5.70%
C000024403 \| LongExchange-Traded Equity Funds
Holdings [Line Items]
Percent of Net Asset Value	1.40%
C000024404 \| FR_744353988
Holdings [Line Items]
Percent of Net Asset Value	3.60%
C000024404 \| FR_423358993
Holdings [Line Items]
Percent of Net Asset Value	3.00%
C000024404 \| FR_631473998
Holdings [Line Items]
Percent of Net Asset Value	2.70%
C000024404 \| FR_BD1RP61
Holdings [Line Items]
Percent of Net Asset Value	2.60%
C000024404 \| FR_629100991
Holdings [Line Items]
Percent of Net Asset Value	2.60%
C000024404 \| FR_BG1VQ16
Holdings [Line Items]
Percent of Net Asset Value	2.50%
C000024404 \| FR_617895990
Holdings [Line Items]
Percent of Net Asset Value	2.40%
C000024404 \| FR_649996998
Holdings [Line Items]
Percent of Net Asset Value	2.30%
C000024404 \| FR_BJYRDP5
Holdings [Line Items]
Percent of Net Asset Value	2.30%
C000024404 \| FR_BYVQYG8
Holdings [Line Items]
Percent of Net Asset Value	2.30%
C000024404 \| Country Other Line
Holdings [Line Items]
Percent of Net Asset Value	13.50%
C000024404 \| Industrials
Holdings [Line Items]
Percent of Net Asset Value	35.10%
C000024404 \| Information Technology
Holdings [Line Items]
Percent of Net Asset Value	19.60%
C000024404 \| Health Care
Holdings [Line Items]
Percent of Net Asset Value	5.30%
C000024404 \| Consumer Discretionary
Holdings [Line Items]
Percent of Net Asset Value	7.20%
C000024404 \| Financials
Holdings [Line Items]
Percent of Net Asset Value	9.40%
C000024404 \| Energy
Holdings [Line Items]
Percent of Net Asset Value	4.60%
C000024404 \| Consumer Staples
Holdings [Line Items]
Percent of Net Asset Value	4.70%
C000024404 \| Communication Services
Holdings [Line Items]
Percent of Net Asset Value	4.70%
C000024404 \| Materials
Holdings [Line Items]
Percent of Net Asset Value	3.40%
C000024404 \| Real Estate
Holdings [Line Items]
Percent of Net Asset Value	3.00%
C000024404 \| Japan
Holdings [Line Items]
Percent of Net Asset Value	43.50%
C000024404 \| Switzerland
Holdings [Line Items]
Percent of Net Asset Value	8.10%
C000024404 \| United Kingdom
Holdings [Line Items]
Percent of Net Asset Value	7.90%
C000024404 \| Italy
Holdings [Line Items]
Percent of Net Asset Value	6.10%
C000024404 \| France
Holdings [Line Items]
Percent of Net Asset Value	4.70%
C000024404 \| United States
Holdings [Line Items]
Percent of Net Asset Value	4.40%
C000024404 \| Germany
Holdings [Line Items]
Percent of Net Asset Value	3.80%
C000024404 \| Netherlands
Holdings [Line Items]
Percent of Net Asset Value	3.00%
C000024404 \| Ireland
Holdings [Line Items]
Percent of Net Asset Value	2.60%
C000024404 \| Australia
Holdings [Line Items]
Percent of Net Asset Value	2.20%