v3.26.1
Shareholder Report, Holdings (Details)
Jun. 30, 2026
C000032863 | FR_95040Q104  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000032863 | FR_74340W103  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000032863 | FR_29444U700  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000032863 | FR_828806109  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000032863 | FR_297178105  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000032863 | FR_92276F100  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000032863 | FR_29476L107  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000032863 | FR_253868103  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000032863 | FR_46284V101  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000032863 | FR_74460D109  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000032863 | Asset Other Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000032863 | Health Care REITs  
Holdings [Line Items]  
Percent of Net Asset Value 22.70%
C000032863 | Retail REITs  
Holdings [Line Items]  
Percent of Net Asset Value 17.30%
C000032863 | Industrial REITs  
Holdings [Line Items]  
Percent of Net Asset Value 13.40%
C000032863 | Data Center REITs  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000032863 | Multi-Family Residential REITs  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000032863 | Other Specialized REITs  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000032863 | Self Storage REITs  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000032863 | Single-Family Residential REITs  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000032863 | Hotel & Resort REITs  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000032863 | Office REITs  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000032863 | Diversified REITs  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000032863 | Industry Other Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000032863 | LongCommon Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 98.90%
C000248364 | FR_95040Q104  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000248364 | FR_74340W103  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000248364 | FR_29444U700  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000248364 | FR_828806109  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000248364 | FR_297178105  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000248364 | FR_92276F100  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000248364 | FR_29476L107  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000248364 | FR_253868103  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000248364 | FR_46284V101  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000248364 | FR_74460D109  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000248364 | Asset Other Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000248364 | Health Care REITs  
Holdings [Line Items]  
Percent of Net Asset Value 22.70%
C000248364 | Retail REITs  
Holdings [Line Items]  
Percent of Net Asset Value 17.30%
C000248364 | Industrial REITs  
Holdings [Line Items]  
Percent of Net Asset Value 13.40%
C000248364 | Data Center REITs  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000248364 | Multi-Family Residential REITs  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000248364 | Other Specialized REITs  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000248364 | Self Storage REITs  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000248364 | Single-Family Residential REITs  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000248364 | Hotel & Resort REITs  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000248364 | Office REITs  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000248364 | Diversified REITs  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000248364 | Industry Other Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000248364 | LongCommon Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 98.90%
C000094674 | FR_95040Q104  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000094674 | FR_74340W103  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000094674 | FR_29444U700  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000094674 | FR_828806109  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000094674 | FR_297178105  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000094674 | FR_92276F100  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000094674 | FR_29476L107  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000094674 | FR_253868103  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000094674 | FR_46284V101  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000094674 | FR_74460D109  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000094674 | Asset Other Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000094674 | Health Care REITs  
Holdings [Line Items]  
Percent of Net Asset Value 22.70%
C000094674 | Retail REITs  
Holdings [Line Items]  
Percent of Net Asset Value 17.30%
C000094674 | Industrial REITs  
Holdings [Line Items]  
Percent of Net Asset Value 13.40%
C000094674 | Data Center REITs  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000094674 | Multi-Family Residential REITs  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000094674 | Other Specialized REITs  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000094674 | Self Storage REITs  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000094674 | Single-Family Residential REITs  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000094674 | Hotel & Resort REITs  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000094674 | Office REITs  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000094674 | Diversified REITs  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000094674 | Industry Other Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000094674 | LongCommon Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 98.90%
C000171305 | FR_95040Q104  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000171305 | FR_74340W103  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000171305 | FR_29444U700  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000171305 | FR_828806109  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000171305 | FR_297178105  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000171305 | FR_92276F100  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000171305 | FR_29476L107  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000171305 | FR_253868103  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000171305 | FR_46284V101  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000171305 | FR_74460D109  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000171305 | Asset Other Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000171305 | Health Care REITs  
Holdings [Line Items]  
Percent of Net Asset Value 22.70%
C000171305 | Retail REITs  
Holdings [Line Items]  
Percent of Net Asset Value 17.30%
C000171305 | Industrial REITs  
Holdings [Line Items]  
Percent of Net Asset Value 13.40%
C000171305 | Data Center REITs  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000171305 | Multi-Family Residential REITs  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000171305 | Other Specialized REITs  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000171305 | Self Storage REITs  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000171305 | Single-Family Residential REITs  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000171305 | Hotel & Resort REITs  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000171305 | Office REITs  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000171305 | Diversified REITs  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000171305 | Industry Other Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000171305 | LongCommon Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 98.90%
C000032867 | FR_95040Q104  
Holdings [Line Items]  
Percent of Net Asset Value 12.50%
C000032867 | FR_74340W103  
Holdings [Line Items]  
Percent of Net Asset Value 10.00%
C000032867 | FR_29444U700  
Holdings [Line Items]  
Percent of Net Asset Value 9.20%
C000032867 | FR_828806109  
Holdings [Line Items]  
Percent of Net Asset Value 5.30%
C000032867 | FR_297178105  
Holdings [Line Items]  
Percent of Net Asset Value 3.50%
C000032867 | FR_92276F100  
Holdings [Line Items]  
Percent of Net Asset Value 3.10%
C000032867 | FR_29476L107  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000032867 | FR_253868103  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000032867 | FR_46284V101  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000032867 | FR_74460D109  
Holdings [Line Items]  
Percent of Net Asset Value 2.70%
C000032867 | Asset Other Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.60%
C000032867 | Health Care REITs  
Holdings [Line Items]  
Percent of Net Asset Value 22.70%
C000032867 | Retail REITs  
Holdings [Line Items]  
Percent of Net Asset Value 17.30%
C000032867 | Industrial REITs  
Holdings [Line Items]  
Percent of Net Asset Value 13.40%
C000032867 | Data Center REITs  
Holdings [Line Items]  
Percent of Net Asset Value 12.10%
C000032867 | Multi-Family Residential REITs  
Holdings [Line Items]  
Percent of Net Asset Value 8.90%
C000032867 | Other Specialized REITs  
Holdings [Line Items]  
Percent of Net Asset Value 5.80%
C000032867 | Self Storage REITs  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000032867 | Single-Family Residential REITs  
Holdings [Line Items]  
Percent of Net Asset Value 4.60%
C000032867 | Hotel & Resort REITs  
Holdings [Line Items]  
Percent of Net Asset Value 4.10%
C000032867 | Office REITs  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000032867 | Diversified REITs  
Holdings [Line Items]  
Percent of Net Asset Value 2.00%
C000032867 | Industry Other Line  
Holdings [Line Items]  
Percent of Net Asset Value 0.70%
C000032867 | LongCommon Stocks  
Holdings [Line Items]  
Percent of Net Asset Value 98.90%