v3.26.1
Shareholder Report, Holdings (Details)
Apr. 30, 2026
C000018428 | Total  
Holdings [Line Items]  
Percent of Total Investments 100.00%
C000018428 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 5.74%
C000018428 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 3.53%
C000018428 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 5.95%
C000018428 | Energy  
Holdings [Line Items]  
Percent of Total Investments 7.75%
C000018428 | Financials  
Holdings [Line Items]  
Percent of Total Investments 19.12%
C000018428 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 9.45%
C000018428 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 21.21%
C000018428 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 14.97%
C000018428 | Materials  
Holdings [Line Items]  
Percent of Total Investments 5.30%
C000018428 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 5.11%
C000018428 | Repurchase Agreements  
Holdings [Line Items]  
Percent of Total Investments 1.87%
C000018430 | Total  
Holdings [Line Items]  
Percent of Total Investments 100.00%
C000018430 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 5.74%
C000018430 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 3.53%
C000018430 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 5.95%
C000018430 | Energy  
Holdings [Line Items]  
Percent of Total Investments 7.75%
C000018430 | Financials  
Holdings [Line Items]  
Percent of Total Investments 19.12%
C000018430 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 9.45%
C000018430 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 21.21%
C000018430 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 14.97%
C000018430 | Materials  
Holdings [Line Items]  
Percent of Total Investments 5.30%
C000018430 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 5.11%
C000018430 | Repurchase Agreements  
Holdings [Line Items]  
Percent of Total Investments 1.87%
C000054699 | Total  
Holdings [Line Items]  
Percent of Total Investments 100.00%
C000054699 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 5.74%
C000054699 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 3.53%
C000054699 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 5.95%
C000054699 | Energy  
Holdings [Line Items]  
Percent of Total Investments 7.75%
C000054699 | Financials  
Holdings [Line Items]  
Percent of Total Investments 19.12%
C000054699 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 9.45%
C000054699 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 21.21%
C000054699 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 14.97%
C000054699 | Materials  
Holdings [Line Items]  
Percent of Total Investments 5.30%
C000054699 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 5.11%
C000054699 | Repurchase Agreements  
Holdings [Line Items]  
Percent of Total Investments 1.87%
C000184551 | Total  
Holdings [Line Items]  
Percent of Total Investments 100.00%
C000184551 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 5.74%
C000184551 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 3.53%
C000184551 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 5.95%
C000184551 | Energy  
Holdings [Line Items]  
Percent of Total Investments 7.75%
C000184551 | Financials  
Holdings [Line Items]  
Percent of Total Investments 19.12%
C000184551 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 9.45%
C000184551 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 21.21%
C000184551 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 14.97%
C000184551 | Materials  
Holdings [Line Items]  
Percent of Total Investments 5.30%
C000184551 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 5.11%
C000184551 | Repurchase Agreements  
Holdings [Line Items]  
Percent of Total Investments 1.87%
C000018432 | Total  
Holdings [Line Items]  
Percent of Total Investments 100.00%
C000018432 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 5.74%
C000018432 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 3.53%
C000018432 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 5.95%
C000018432 | Energy  
Holdings [Line Items]  
Percent of Total Investments 7.75%
C000018432 | Financials  
Holdings [Line Items]  
Percent of Total Investments 19.12%
C000018432 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 9.45%
C000018432 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 21.21%
C000018432 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 14.97%
C000018432 | Materials  
Holdings [Line Items]  
Percent of Total Investments 5.30%
C000018432 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 5.11%
C000018432 | Repurchase Agreements  
Holdings [Line Items]  
Percent of Total Investments 1.87%
C000018431 | Total  
Holdings [Line Items]  
Percent of Total Investments 100.00%
C000018431 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 5.74%
C000018431 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 3.53%
C000018431 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 5.95%
C000018431 | Energy  
Holdings [Line Items]  
Percent of Total Investments 7.75%
C000018431 | Financials  
Holdings [Line Items]  
Percent of Total Investments 19.12%
C000018431 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 9.45%
C000018431 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 21.21%
C000018431 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 14.97%
C000018431 | Materials  
Holdings [Line Items]  
Percent of Total Investments 5.30%
C000018431 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 5.11%
C000018431 | Repurchase Agreements  
Holdings [Line Items]  
Percent of Total Investments 1.87%
C000054700 | Total  
Holdings [Line Items]  
Percent of Total Investments 100.00%
C000054700 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 5.74%
C000054700 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 3.53%
C000054700 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 5.95%
C000054700 | Energy  
Holdings [Line Items]  
Percent of Total Investments 7.75%
C000054700 | Financials  
Holdings [Line Items]  
Percent of Total Investments 19.12%
C000054700 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 9.45%
C000054700 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 21.21%
C000054700 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 14.97%
C000054700 | Materials  
Holdings [Line Items]  
Percent of Total Investments 5.30%
C000054700 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 5.11%
C000054700 | Repurchase Agreements  
Holdings [Line Items]  
Percent of Total Investments 1.87%
C000054701 | Total  
Holdings [Line Items]  
Percent of Total Investments 100.00%
C000054701 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 5.74%
C000054701 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 3.53%
C000054701 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 5.95%
C000054701 | Energy  
Holdings [Line Items]  
Percent of Total Investments 7.75%
C000054701 | Financials  
Holdings [Line Items]  
Percent of Total Investments 19.12%
C000054701 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 9.45%
C000054701 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 21.21%
C000054701 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 14.97%
C000054701 | Materials  
Holdings [Line Items]  
Percent of Total Investments 5.30%
C000054701 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 5.11%
C000054701 | Repurchase Agreements  
Holdings [Line Items]  
Percent of Total Investments 1.87%
C000155435 | Total  
Holdings [Line Items]  
Percent of Total Investments 100.00%
C000155435 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 5.74%
C000155435 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 3.53%
C000155435 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 5.95%
C000155435 | Energy  
Holdings [Line Items]  
Percent of Total Investments 7.75%
C000155435 | Financials  
Holdings [Line Items]  
Percent of Total Investments 19.12%
C000155435 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 9.45%
C000155435 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 21.21%
C000155435 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 14.97%
C000155435 | Materials  
Holdings [Line Items]  
Percent of Total Investments 5.30%
C000155435 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 5.11%
C000155435 | Repurchase Agreements  
Holdings [Line Items]  
Percent of Total Investments 1.87%
C000155436 | Total  
Holdings [Line Items]  
Percent of Total Investments 100.00%
C000155436 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 5.74%
C000155436 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 3.53%
C000155436 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 5.95%
C000155436 | Energy  
Holdings [Line Items]  
Percent of Total Investments 7.75%
C000155436 | Financials  
Holdings [Line Items]  
Percent of Total Investments 19.12%
C000155436 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 9.45%
C000155436 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 21.21%
C000155436 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 14.97%
C000155436 | Materials  
Holdings [Line Items]  
Percent of Total Investments 5.30%
C000155436 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 5.11%
C000155436 | Repurchase Agreements  
Holdings [Line Items]  
Percent of Total Investments 1.87%
C000155437 | Total  
Holdings [Line Items]  
Percent of Total Investments 100.00%
C000155437 | Communication Services  
Holdings [Line Items]  
Percent of Total Investments 5.74%
C000155437 | Consumer Discretionary  
Holdings [Line Items]  
Percent of Total Investments 3.53%
C000155437 | Consumer Staples  
Holdings [Line Items]  
Percent of Total Investments 5.95%
C000155437 | Energy  
Holdings [Line Items]  
Percent of Total Investments 7.75%
C000155437 | Financials  
Holdings [Line Items]  
Percent of Total Investments 19.12%
C000155437 | Health Care  
Holdings [Line Items]  
Percent of Total Investments 9.45%
C000155437 | Industrials  
Holdings [Line Items]  
Percent of Total Investments 21.21%
C000155437 | Information Technology  
Holdings [Line Items]  
Percent of Total Investments 14.97%
C000155437 | Materials  
Holdings [Line Items]  
Percent of Total Investments 5.30%
C000155437 | Utilities  
Holdings [Line Items]  
Percent of Total Investments 5.11%
C000155437 | Repurchase Agreements  
Holdings [Line Items]  
Percent of Total Investments 1.87%